Abstract

System and method for improving braking efficiency by increasing the magnitude of a frictional force between a tire of a vehicle wheel and a road surface. Braking efficiency may be improved by controlling the normal force applied on the wheel, with an active suspension actuator, based on the wheel's slip ratio.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof

Abstract

Methods and systems are described for accurately determining the location of a vehicle traveling along a road. Methods include first locating the approximate position of a vehicle using techniques such as GNSS or dead reckoning from a know location, and then refining the position of the vehicle using terrain-based localization. This type of localization includes the use of the temporal and spatial variation of magnitude of the correlation between a current road surface profile, obtained while traveling along a road, and previously obtained reference profiles of the same road.

IPC Classes  ?

• G01C 21/30 - Map- or contour-matching
• G01C 21/12 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning

Abstract

Disclosed herein are various embodiments of a hydraulic actuator that includes one or more check valves having a dynamically varying cracking pressure. In certain embodiments, a hydraulic actuator may be configured to vary the cracking pressure of a check valve based on an operating condition of a pump of the hydraulic actuator. The check valve may be located along a bypass path in the hydraulic actuator, thereby allowing for fluid flow to bypass a pump of the hydraulic actuator by passing through the check valve. The use of such hydraulic actuators is contemplated in, for example, an active suspension system of a vehicle. Additionally, various embodiments of suitable check valves are disclosed. Additionally, methods are disclosed for operation of the check valve and the hydraulic actuator.

IPC Classes  ?

• F15B 13/02 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
• B60G 17/044 - Self-pumping fluid springs
• F15B 7/00 - Fluid-pressure actuator systems in which the movement produced is definitely related to the output of a volumetric pumpTelemotors

Abstract

A regenerative shock absorber that includes a housing and a piston that moves at least partially through the housing when the shock is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor, in turn, drives an electric generator that produced electric energy. The electric energy may be provided to a vehicle, among other things. The regenerative shock absorber may also provide ride performance that comparable to or exceeds that of conventional shock absorbers.

IPC Classes  ?

• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• B60G 17/08 - Characteristics of fluid dampers
• B60K 5/12 - Arrangement of engine supports
• B60K 25/10 - Auxiliary drives directly from oscillating movements due to vehicle running motion, e.g. suspension movement
• F03G 3/00 - Other motors, e.g. gravity or inertia motors
• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
• H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines

Abstract

Systems and methods described herein include implementations where performance of systems for measuring aspects of a road surface, such as sensor systems, on board a production vehicle may be improved by using data collected by the production vehicle while traveling on primary and/or secondary reference road segments. Primary reference road segments in a road network may be characterized by specially equipped vehicles.

IPC Classes  ?

• G01S 7/497 - Means for monitoring or calibrating
• B60W 40/06 - Road conditions
• G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

Abstract

A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

IPC Classes  ?

• B60G 17/052 - Pneumatic spring characteristics
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine

Goods & Services

Actuators, electro-hydraulic actuators; linear electro-hydraulic actuators; electric actuators. Downloadable computer software for monitoring and controlling systems in vehicles, namely, electric actuators, electro-hydraulic actuators, suspension systems, shock absorbers, dampers, chassis systems, and actuators. Vehicle parts, namely, suspension system components in the nature of actuators, chassis system components in the nature of suspension systems for automobiles. Providing temporary use of on-line non-downloadable computer software for monitoring and controlling systems in vehicles, namely, electric actuators, electro-hydraulic actuators, suspension systems, chassis systems, and actuators.

Abstract

Disclosed herein are active hydraulic cylinders for use in active vehicle suspension systems, and methods for assembling active hydraulic cylinders for use in an active vehicle suspension system. In particular, in certain embodiments a manifold may encircle a portion of an outer tube of a twin tube assembly. The manifold may mechanically and fluidly couple a pump assembly to the twin tube assembly. In certain embodiments, the manifold may be welded onto the outer tube.

IPC Classes  ?

• F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
• B60G 17/08 - Characteristics of fluid dampers
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 9/34 - Special valve constructionsShape or construction of throttling passages
• F16F 9/50 - Special means providing automatic damping adjustment

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including confidence-based consumption, air suspension control systems and methods, end of travel management, road profile creation techniques, and others.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• G01C 21/30 - Map- or contour-matching
• G07C 5/04 - Registering or indicating driving, working, idle, or waiting time only using counting means or digital clocks

Abstract

A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

IPC Classes  ?

• B60G 17/052 - Pneumatic spring characteristics
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine

Abstract

Methods and systems related to determining the ordering and/or positioning of travel lanes on a road segment are disclosed. In some embodiments, this may include obtaining and clustering road surface profiles associated with a road segment using, for example, a degree of similarity or other appropriate metric. A lateral offset or position of the clustered profiles may be used in determining the lane ordering and/or position. The resulting lane specific information may be used to determine a travel lane for a vehicle by comparing a current road-profile obtained from the vehicle and the road profile information associated with the different lanes. In other embodiments, a method and/or system for augmenting a global navigation satellite system (GNSS) signal may include using a raw GNSS signal and a GNSS location associated with terrain-based data to determine a lateral offset for use in determining a corrected GNSS location of the vehicle.

IPC Classes  ?

• G06F 18/23 - Clustering techniques
• G01S 19/40 - Correcting position, velocity or attitude
• G01S 19/42 - Determining position

Abstract

Various systems and methods are disclosed for anticipating the occurrence and/or mitigating the severity and/or duration of kinetosis experienced by one or more occupants of a vehicle. This is especially while the vehicle is travelling over a road surface and one or more occupants are performing tasks that require visual focus. Also, disclosed are systems and methods for predicting or otherwise determining aspects of head motion and characteristics of the eye motion of an occupant of a vehicle and of using that information to mitigate kinetosis by controlling an aspect of vehicle motion.

IPC Classes  ?

• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60N 2/02 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer

Abstract

In one embodiment, one or more suspension systems of a vehicle may be used to mitigate motion sickness by limiting motion in one or more frequency ranges. In another embodiment, an active suspension may be integrated with an autonomous vehicle architecture. In yet another embodiment, the active suspension system of a vehicle may be used to induce motion in a vehicle. The vehicle may be used as a testbed for technical investigations and/or as a platform to enhance the enjoyment of video and/or audio by vehicle occupants. In some embodiments, the active suspensions system may be used to perform gestures as a means of communication with persons inside or outside the vehicle. In some embodiments, the active suspensions system may be used to generate haptic warnings to a vehicle operator or other persons in response to certain road situations.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60G 99/00 - Subject matter not provided for in other groups of this subclass
• B60K 35/00 - Instruments specially adapted for vehiclesArrangement of instruments in or on vehicles
• B60K 35/25 - Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using haptic output
• B60K 35/28 - Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics informationOutput arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the purpose of the output information, e.g. for attracting the attention of the driver
• B60N 2/02 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
• B60N 2/14 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable rotatable, e.g. to permit easy access
• B60N 2/50 - Seat suspension devices

Abstract

In some embodiments, a rapid-response active suspension system controls suspension force and position for improving vehicle safety and drivability. The system may interface with various sensors that detect safety critical vehicle states and adjust the suspension of each wheel to improve safety. Pre-crash and collision sensors may notify the active suspension controller of a collision and the stance may be adjusted to improve occupant safety during an impact while maintaining active control of the wheels. Wheel forces may also be controlled to improve the effectiveness of vehicle safety systems such as ABS and ESP in order to improve traction. Also, bi-directional information may be communicated between the active suspension system and other vehicle safety systems such that each system may respond to information provided to the other.

IPC Classes  ?

• B60W 30/02 - Control of vehicle driving stability
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60G 17/02 - Spring characteristics
• B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
• B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention

Abstract

Vehicles traveling on a road surface may encounter a variety of road surface features and characteristics. Encounters with certain road surface features may lead to undesirable outcomes, including discomfort for passengers, potential damage to vehicle components, and safety concerns. Methods and apparatus are disclosed for detecting and characterizing such features and using onboard systems to mitigate their effect. These methods and apparatus also include using information about the interaction of a front wheel with a feature to implement a control strategy that mitigates the effects of the interaction of the rear wheel of the vehicle, with the same feature. Additionally, the disclosure introduces methods and equipment for collecting information about and assessing certain road surface characteristics, such as friction parameters.

IPC Classes  ?

• B60Q 1/14 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

Methods and systems are presented for planning and commanding motions of a vehicle in the plane of a road and in the vertical direction, relative to the plane of a road, to enhance vehicle performance, as it may relate to, for example, vehicle safety, occupant comfort, wear and tear on the vehicle, and/or vehicle efficiency. One or more processors may be used to plan XYZ vehicle trajectories and to provide commands to systems such as, for example, active suspension systems, semi-active suspension systems, propulsion systems, braking systems (e.g. ABS), and/or steering systems. The one or more processors may also receive road information from, for example, look-ahead sensors (e.g. LiDAR), local or remote databases, and motion sensors (e.g. IMUs, accelerometers). The one or more processors may also exchange information with a driver and/or other vehicle occupants, various on-board or remote databases, and/or infrastructure systems (e.g. GPS) by means of one or more communication devices.

IPC Classes  ?

• G05D 1/02 - Control of position or course in two dimensions
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
• G08G 1/00 - Traffic control systems for road vehicles
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit

Abstract

A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/08 - Characteristics of fluid dampers
• B60G 99/00 - Subject matter not provided for in other groups of this subclass
• F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
• F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
• H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
• H02P 21/06 - Rotor flux based control involving the use of rotor position or rotor speed sensors

Abstract

Disclosed embodiments are related to suspension systems including dampers and suspension actuators and related methods of control for mitigating the effects of potholes and other road surface discontinuities.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/08 - Characteristics of fluid dampers

Abstract

Systems and methods for determining the location of a vehicle are disclosed. In one embodiment, a method for localizing a vehicle includes driving over a first road segment, identifying by a first localization system a set of candidate road segments, obtaining vertical motion data while driving over the first road segment, comparing the obtained vertical motion data to reference vertical motion data associated with at least one candidate road segment, and identifying, based on the comparison, a location of the vehicle. The use of such localization methods and systems in coordination with various advanced vehicle systems such as, for example, active suspension systems or autonomous driving features, is contemplated.

IPC Classes  ?

• G05D 1/02 - Control of position or course in two dimensions
• B60W 40/06 - Road conditions
• G01C 21/30 - Map- or contour-matching

Abstract

A vehicle may include a chassis, four wheels, and an active suspension system operatively coupled to the four wheels and the chassis, where the active suspension system comprises at least one actuator configured to apply active forces to at least one of the four wheels. A processor may be configured to control the active suspension system by receiving a first force request for force to alter a first motion characteristic of the chassis, allocating a first force allocation to the first force request based on a force capacity, receiving a second force request for force to alter a second motion characteristic of the chassis, allocating a second force allocation to the second force request based on the first force allocation, and commanding the at least one actuator to apply force based on the first force allocation and the second force allocation.

IPC Classes  ?

• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 21/00 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• B60G 17/02 - Spring characteristics
• B60G 17/06 - Characteristics of dampers

Abstract

A vehicle may include a chassis and/or vehicle body, a plurality of wheels or wheel assemblies, an active suspension system operatively coupled to the plurality of wheels or wheel assemblies and the chassis and/or vehicle body, and at least one processor configured to control the active suspension system. The at least one processor may be configured to obtain a tuning parameter, determine a first vehicle parameter, determine a second vehicle parameter, determine a blended vehicle parameter based at least partly on the tuning parameter, the first vehicle parameter, and the second vehicle parameter, and command the at least one actuator to apply force between at least one of the plurality of wheels or wheel assemblies and the chassis and/or vehicle body based at least partly on the blended vehicle parameter.

IPC Classes  ?

• B60G 17/00 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/06 - Characteristics of dampers
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems

Abstract

A vehicle may include a vehicle body, a plurality of wheels, an active suspension system operatively coupled to the plurality of wheels and the vehicle body, and at least one processor configured to control the active suspension system. The at least one processor may be configured to determine a first force command based on a vehicle body parameter, determine a second force command based on the vehicle body parameter and a suspension parameter, determine a blend ratio based on the first force command, determine a third force command based at least partly on the blend ratio, the first force command, and the second force command, and command the at least one actuator to apply force between at least one of the plurality of wheels and the vehicle body based at least partly on the third force command.

IPC Classes  ?

• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 21/00 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• B60G 17/02 - Spring characteristics
• B60G 17/06 - Characteristics of dampers

Abstract

Methods and systems for generating a map of road features are provided. A method may include obtaining a vehicle motion profile, inputting the vehicle motion profile to a trained statistical model, and outputting one or more road features from the trained statistical model. A method may include obtaining first vehicle motion profiles, obtaining second vehicle motion profiles, generating a trained statistical model using the first vehicle motion vehicle motion profiles and the second vehicle motion profiles, and storing the trained statistical model in non-volatile computer readable memory.

IPC Classes  ?

• G01C 21/00 - NavigationNavigational instruments not provided for in groups
• G06N 3/088 - Non-supervised learning, e.g. competitive learning

Abstract

Hydraulic systems and methods for reducing the propagation of flow and/or pressure fluctuations within a hydraulic system with a differential buffer are described. A differential buffer may include a first internal volume, a second internal volume, and a barrier separating at least a portion of the first internal volume and at least a portion of the second internal volume. The barrier may move to mitigate pressure and/or flow fluctuations in the first internal volume and the second internal volume by passive destructive interference.

IPC Classes  ?

• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• F15B 1/02 - Installations or systems with accumulators

Abstract

A vehicle control system for a vehicle is provided. The vehicle control system may be configured to adjust a normal component of a wheel force at one or more wheels of the vehicle and steer one or more rear wheels of the vehicle to improve vehicle dynamics during a road event (e.g., braking event, steering event). The vehicle control system may generate cues to a user to provide an appropriate input based on reference road information, forward-looking road information, and/or vehicle sensor data.

IPC Classes  ?

• B60W 30/18 - Propelling the vehicle
• B60W 30/02 - Control of vehicle driving stability
• B60W 40/072 - Curvature of the road
• B60W 40/068 - Road friction coefficient
• B60W 10/18 - Conjoint control of vehicle sub-units of different type or different function including control of braking systems
• B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems

Goods & Services

downloadable computer software for monitoring and controlling systems in vehicles, namely, electric actuators, electro-hydraulic actuators, suspension systems, shock absorbers, dampers, chassis systems, and actuators; electric actuators vehicle parts, namely, suspension system components in the nature of electro-hydraulic linear actuators for land vehicles, chassis system components in the nature of suspension systems for automobiles; hydraulic linear actuators for land vehicles; electro-hydraulic linear actuators for land vehicles providing temporary use of on-line non-downloadable computer software for monitoring and controlling systems in vehicles, namely, electric actuators, electro-hydraulic actuators, suspension systems, chassis systems, and actuators

Abstract

A vehicle control system for a vehicle having a braking system and active suspension system is provided. The vehicle control system may be configured to adjust a normal component of a wheel force at one or more wheels of the vehicle to increase an average traction force at the one or more wheels during a braking event. The vehicle control system may adjust a normal component of a wheel force at one or more wheels based on reference road information, forward-looking road information, and/or vehicle sensor data.

IPC Classes  ?

• B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
• B60T 8/172 - Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
• B60T 8/24 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle inclination or change of direction, e.g. negotiating bends
• B60T 8/32 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
• B60W 10/18 - Conjoint control of vehicle sub-units of different type or different function including control of braking systems

Abstract

A method for estimating a coefficient of friction for a surface relative to one or more tires in contact with the surface, the one or more tires mounted on a vehicle, is disclosed herein. One or more models may be selectively retrieved from data storage. At least one surface condition may be associated with each of the one or more models. Respective values corresponding to a coefficient of friction of the surface relative to the one or more tires in contact with the surface may be estimated based on at least the one or more models and at least one of the one or more operating events on, and a sensed motion of, at least one of the one or more tires. At least one output signal corresponding to the estimated coefficient of friction may be generated.

IPC Classes  ?

• B60W 40/068 - Road friction coefficient
• B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself
• B60W 40/107 - Longitudinal acceleration
• B60W 40/105 - Speed
• B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit

Abstract

a prioria priori information about a road surface ahead of the vehicle obtained from a data base and real time information collected by one or more on-board sensors. Alternatively, in a second mode, such controllers may rely only on real time information collected by one or more on-board sensors. Systems controlled by such controllers may include, but are not limited to, active suspension actuators.

IPC Classes  ?

• B60W 50/06 - Improving the dynamic response of the control system, e.g. improving the speed of regulation or avoiding hunting or overshoot
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60W 40/06 - Road conditions

Abstract

Integrated multiple actuator electro-hydraulic systems as well as their methods of use are described. Depending on the particular application, the integrated electro-hydraulic systems may exhibit different frequency responses and/or may be integrated into a single combined unit.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 7/00 - Pivoted suspension armsAccessories thereof
• B60G 17/027 - Mechanical springs regulated by fluid means
• B60G 17/033 - Spring characteristics characterised by regulating means acting on more than one spring
• B60G 17/04 - Fluid-spring characteristics

Abstract

A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators.

IPC Classes  ?

• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine
• B60G 11/26 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs
• F01C 1/10 - Rotary-piston machines or engines of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F01C 9/00 - Oscillating-piston machines or engines
• F01C 13/00 - Adaptations of machines or engines for special useCombinations of engines with devices driven thereby
• F03C 1/26 - Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air

Abstract

Methods related to the exchange of vehicle related information between a vehicle and a remote database are disclosed. In some implementations, data may be collected based on measurements with a sensor onboard a vehicle. A location of the vehicle may also be determined. If the location is within a data protection zone or in a data protection road segment, the exchange of the vehicle related information may be avoided or curtailed to protect the anonymity of the vehicle and/or its occupants. If the vehicle is outside of the data protection zone or road segment, vehicle data may be exchanged with the remote database. In some implementations, the data protection zone or road segment may be determined based on information received from a user interface in the vehicle.

IPC Classes  ?

• G07C 5/00 - Registering or indicating the working of vehicles
• H04L 67/125 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
• G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits
• H04W 4/02 - Services making use of location information

Abstract

Methods related to the control of vehicle systems while a vehicle is traveling along a road surface are disclosed. In some implementations, data related to the road surface ahead of the vehicle is separated into first and second frequency ranges. Commands for a vehicle system may then be determined for the different frequency ranges and the vehicle system may be controlled based at least in part on the separate commands for the separate frequency ranges. This may include determining a combined system command based at least in part on the separate commands for the separate frequency ranges in some implementations.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself
• B60G 17/06 - Characteristics of dampers

Abstract

Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working chamber and a contained chamber may be utilized to at least partially attenuate propagation of certain pulsations in the system. The working chamber may be fluidically coupled to the pump via a first flow path and fluidically coupled to a chamber of the actuator via a second flow path. The system may be designed such that a first inertance of the first flow path is greater than a second inertance of the second flow path. Additionally or alternatively, the system may be designed such that a resonance associated with the first inertance and a compliance of the accumulator may occur at a resonance frequency of less than 90 Hz.

IPC Classes  ?

• F15B 1/24 - Accumulators using a gas cushionGas charging devicesIndicators or floats therefor with rigid separating means, e.g. pistons
• F15B 7/00 - Fluid-pressure actuator systems in which the movement produced is definitely related to the output of a volumetric pumpTelemotors
• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• F04B 11/00 - Equalisation of pulses, e.g. by use of air vesselsCounteracting cavitation
• F04B 49/06 - Control using electricity

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including advanced driver assistance systems (ADAS), lane drift detection, passing guidance, bandwidth conservation and caching based on road data, vehicle speed correction, suspension and vehicle system performance tracking and control, road estimation calibration, and others.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60W 30/14 - Cruise control
• G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including advanced driver assistance systems (ADAS), lane drift detection, passing guidance, bandwidth conservation and caching based on road data, vehicle speed correction, suspension and vehicle system performance tracking and control, road estimation calibration, and others.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60W 30/14 - Cruise control
• G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles

Abstract

Methods are provided for controlling various systems in a vehicle based on input signals from at least one physical sensor and at least one model of a vehicle or a portion of the vehicle. The controller a rely preferentially on one or the other inputs based on the frequency of a motion of the vehicle and the state of the vehicle or one or mor portions of the vehicle.

IPC Classes  ?

• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof

Abstract

Methods and systems are described for accurately determining the location of a vehicle traveling along a road. Methods include first locating the approximate position of a vehicle using techniques such as GNSS or dead reckoning from a know location, and then refining the position of the vehicle using terrain-based localization. This type of localization includes the use of the temporal and spatial variation of magnitude of the correlation between a current road surface profile, obtained while traveling along a road, and previously obtained reference profiles of the same road.

IPC Classes  ?

• B60W 40/06 - Road conditions
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• G01C 21/34 - Route searchingRoute guidance
• B60W 50/04 - Monitoring the functioning of the control system
• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind

Abstract

Various systems and methods are disclosed for providing a broad range of tools for selecting a route based on road information, vehicle information, and vehicle occupant information. Also disclosed are costs and tradeoffs which may be associated with various choices including wear and tear on vehicle components, occupant discomfort, increased trip duration and efficiency losses.

IPC Classes  ?

• G01C 21/34 - Route searchingRoute guidance

Abstract

Various systems and methods are disclosed for predicting, detecting or mitigating motion sickness of one or more occupants of a vehicle. Also, disclosed are systems and methods for measuring aspects of head motion and characteristics of at least one eye an occupant of a vehicle and using that information mitigate motion sickness.

IPC Classes  ?

• B60W 30/02 - Control of vehicle driving stability
• B60W 40/08 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to drivers or passengers
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
• B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
• G06V 20/59 - Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
• G06V 40/18 - Eye characteristics, e.g. of the iris

Abstract

Systems and methods described herein include implementations where performance of systems for measuring aspects of a road surface, such as sensor systems, on board a production vehicle may be improved by using data collected by the production vehicle while traveling on primary and/or secondary reference road segments. Primary reference road segments in a road network may be characterized by specially equipped vehicles.

IPC Classes  ?

• G05B 13/00 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion

Abstract

Method and apparatus for improving the performance, response, and durability of an electro-hydraulic active suspension system. The noise caused by hydraulic flow ripple is reduced and system response is improved.

IPC Classes  ?

• F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

Abstract

Methods are provided for proactively controlling a component of a system. The system may comprise a vehicle and the component may comprise a suspension of the vehicle. According to various aspects, methods may include obtaining information regarding a travel surface along a travel path that the system will travel at a future time and, based on the information regarding the travel surface, controlling the component of the system to traverse the travel surface. Controlling the component based on the information regarding the travel surface may comprise comparing the information regarding the travel surface to information regarding at least one physical constraint of the system and/or comparing frequency content of the information regarding the travel surface to a threshold frequency. Proactive control methods may provide improved response to disturbances and improved tracking and isolation because a suspension may be controlled with reduced or substantially zero delay.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60W 40/06 - Road conditions
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems

Abstract

Methods and systems related to determining the ordering and/or positioning of travel lanes on a road segment are disclosed. In some embodiments, this may include obtaining and clustering road surface profiles associated with a road segment using, for example, a degree of similarity or other appropriate metric. A lateral offset or position of the clustered profiles may be used in determining the lane ordering and/or position. The resulting lane specific information may be used to determine a travel lane for a vehicle by comparing a current road- profile obtained from the vehicle and the road profile information associated with the different lanes. In other embodiments, a method and/or system for augmenting a global navigation satellite system (GNSS) signal may include using a raw GNSS signal and a GNSS location associated with terrain-based data to determine a lateral offset for use in determining a corrected GNSS location of the vehicle.

IPC Classes  ?

• G06V 20/50 - Context or environment of the image
• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
• G06V 20/00 - ScenesScene-specific elements

Abstract

Embodiments related to methods and systems for localizing a vehicle on a road surface are described. In some embodiments, linked reference landmarks present on the road surface may be used to determine a location of a vehicle on the road surface and/or to predict a path of travel of the vehicle along the road surface.

IPC Classes  ?

• G01C 21/30 - Map- or contour-matching
• B60W 40/06 - Road conditions

Abstract

In some embodiments, methods and systems may be used to control operation of various systems of the vehicle based on road features included in an upcoming portion of a road surface located along a path of travel of the vehicle. This control may either be based on a probability of encountering a road feature on the road surface 5 and/or frequency information related to the upcoming portion of the road surface.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof

Abstract

Hydraulic systems and methods for reducing the propagation of flow and/or pressure pulsations within a hydraulic system are described. In one embodiment, a hydraulic system may include a hydraulic device and a differential buffer fluidly connected to the hydraulic device. The differential buffer may include a piston that is exposed to pressure pulsations that propagate along separate flow paths and that are at least partially out of phase with one another. Corresponding displacement of the piston due to the out of phase pulsations may at least partially mitigate propagation of the pulsations within the hydraulic system downstream from the differential buffer.

IPC Classes  ?

• F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass

Abstract

Various systems and methods are disclosed for anticipating the occurrence and/or mitigating the severity and/or duration of kinetosis experienced by one or more occupants of a vehicle. This is especially while the vehicle is travelling over a road surface and one or more occupants are performing tasks that require visual focus. Also, disclosed are systems and methods for predicting or otherwise determining aspects of head motion and characteristics of the eye motion of an occupant of a vehicle and of using that information to mitigate kinetosis by controlling an aspect of vehicle motion.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems

Abstract

The systems and methods described herein are related to terrain-based insights for advanced driver assistance systems (ADAS) in vehicles. Such terrain-based insights may be related to ADAS features such as adaptive cruise control, lane keep assist, automatic emergency braking, collision avoidance, and/or speed adaptation, among others.

IPC Classes  ?

• B60T 7/22 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle
• B60W 10/18 - Conjoint control of vehicle sub-units of different type or different function including control of braking systems
• B60W 30/09 - Taking automatic action to avoid collision, e.g. braking and steering
• B60W 30/16 - Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
• B60W 40/06 - Road conditions
• B60W 50/16 - Tactile feedback to the driver, e.g. vibration or force feedback to the driver on the steering wheel or the accelerator pedal

Abstract

Active suspension systems including actuators with combinations of accumulators and flow restrictions, as well as their methods of operation, are described. In some embodiments, methods and constructions for mitigating pump ripple and/or resonances between different hydraulic components are also described.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• B60G 17/08 - Characteristics of fluid dampers

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including advanced driver assistance systems (ADAS), lane drift detection, passing guidance, bandwidth conservation and caching based on road data, vehicle speed correction, suspension and vehicle system performance tracking and control, road estimation calibration, and others.

IPC Classes  ?

• B60W 30/18 - Propelling the vehicle
• B60W 40/06 - Road conditions
• B60W 50/16 - Tactile feedback to the driver, e.g. vibration or force feedback to the driver on the steering wheel or the accelerator pedal

Abstract

Disclosed herein are hydraulic actuators and methods for the operation of actuators having variable relative pressure ratios. Further disclosed are methods for designing and/or operating a hydraulic actuator such that the actuator exhibits a variable relative pressure ratio. In certain embodiments, the relative pressure ratio of the hydraulic actuator may be dependent on one or more characteristics (such as, for example, frequency or rate of change) of an oscillating input to the hydraulic actuator.

IPC Classes  ?

• F15B 11/08 - Servomotor systems without provision for follow-up action with only one servomotor
• B60G 17/04 - Fluid-spring characteristics

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including confidence-based consumption, air suspension control systems and methods, end of travel management, road profile creation techniques, and others.

IPC Classes  ?

• B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself
• B60W 40/06 - Road conditions

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including lane drift detection, passing guidance, bandwidth conservation and caching based on road data, vehicle speed correction, suspension and vehicle system performance tracking and control, road estimation calibration, and others.

IPC Classes  ?

• B60W 40/105 - Speed
• B60W 20/20 - Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
• H04W 4/40 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

Methods and systems for generating a map of road features are provided. A method may include obtaining a vehicle motion profile, inputting the vehicle motion profile to a trained statistical model, and outputting one or more road features from the trained statistical model. A method may include obtaining first vehicle motion profiles, obtaining second vehicle motion profiles, generating a trained statistical model using the first vehicle motion profiles and the second vehicle motion profiles, and storing the trained statistical model in non-volatile computer readable memory.

IPC Classes  ?

• G01C 21/00 - NavigationNavigational instruments not provided for in groups

Abstract

The systems and methods described herein are related to terrain-based insights for advanced driver assistance systems (ADAS) in vehicles. Such terrain-based insights may be related to ADAS features such as adaptive cruise control, lane keep assist, automatic emergency braking, collision avoidance, and/or speed adaptation, among others.

IPC Classes  ?

• G06V 20/10 - Terrestrial scenes
• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
• G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits

Abstract

Methods and systems are described for establishing high-accuracy absolute landmarks that can be used to locate a vehicle's location during a vehicle/HAAL interaction event in some embodiments. Comparing that information with GNSS satellite data allows GNSS satellite errors to be determined and either used by a first vehicle and/or conveyed to other vehicles in the region in some embodiments. Methods and systems are also described for obtaining effectively continuous values of intermittently measured road surface parameters that are determined over time by discrete measurements by systems in a plurality of vehicles in some embodiments.

IPC Classes  ?

• G01C 21/34 - Route searchingRoute guidance

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including advanced driver assistance systems (ADAS), lane drift detection, passing guidance, bandwidth conservation and caching based on road data, vehicle speed correction, suspension and vehicle system performance tracking and control, road estimation calibration, and others.

IPC Classes  ?

• G06V 20/10 - Terrestrial scenes
• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
• G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits

Abstract

Methods and systems are described for establishing high-accuracy absolute landmarks that can be used to locate a vehicle's location during a vehicle/HAAL interaction event in some embodiments. Comparing that information with GNSS satellite data allows GNSS satellite errors to be determined and either used by a first vehicle and/or conveyed to other vehicles in the region in some embodiments. Methods and systems are also described for obtaining effectively continuous values of intermittently measured road surface parameters that are determined over time by discrete measurements by systems in a plurality of vehicles in some embodiments.

IPC Classes  ?

• G01S 19/42 - Determining position
• G01S 19/51 - Relative positioning

Abstract

Localization systems, including road surface-based localization systems, are disclosed that may work in conjunction with less precise systems, such as GPS, to accurately locate a vehicle on a road segment. Methods and apparatus are disclosed for the identification and selection of landmarks, including road surface-based landmarks.

IPC Classes  ?

• G08G 1/0967 - Systems involving transmission of highway information, e.g. weather, speed limits
• G01C 21/14 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by recording the course traversed by the object
• G01C 21/28 - NavigationNavigational instruments not provided for in groups specially adapted for navigation in a road network with correlation of data from several navigational instruments
• G01C 21/36 - Input/output arrangements for on-board computers

Abstract

Active suspension actuator systems including an actuator with a compression volume and an extension volume are described. In some embodiments, the system includes one or more flow control devices in fluid communication with the compression volume and/or the extension volume of the actuator. In some instances, a flow control device may include a pressure balanced blow-off valve (PBOV). In some embodiments, the system includes a high capacity bidirectional base valve. In some embodiments, two or more flow control devices cooperate to, for example, damp low amplitude oscillations in the extension and/or compression volumes, and to allow the build-up of pump generated differential pressures while discharging rapid road induced differential pressure spikes between the extension and compression volumes.

IPC Classes  ?

• B60G 17/08 - Characteristics of fluid dampers
• B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper

Abstract

A vehicle control system for a vehicle is provided. The vehicle control system may be configured to adjust a normal component of a wheel force at one or more wheels of the vehicle and steer one or more rear wheels of the vehicle to improve vehicle dynamics during a road event (e.g., braking event, steering event). The vehicle control system may generate cues to a user to provide an appropriate input based on reference road information, forward- looking road information, and/or vehicle sensor data.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
• B60W 30/02 - Control of vehicle driving stability

Abstract

A method of terrain-based localization of a vehicle is provided. The method may include determining the vehicle is within a threshold distance of a road segment end point and comparing a measured road profile to a reference road profile associated with the road segment. A method of identifying a track (e.g., a lane) of a road segment road profile is provided. The method may include determining if a number of stored road profiles exceeds a threshold number of road profiles and identifying one or more clusters in the stored road profiles if the threshold number is exceeded.

IPC Classes  ?

• G01S 19/51 - Relative positioning

Abstract

Systems and methods described herein include implementation of road surface-based localization techniques for advanced vehicle features and control methods including lane drift detection, passing guidance, bandwidth conservation and caching based on road data, vehicle speed correction, suspension and vehicle system performance tracking and control, road estimation calibration, and others. According to one aspect, the disclosure provides a method including obtaining, from one or more sensors corresponding to a left wheel of a vehicle, left wheel data as the vehicle traverses a road segment. The method also includes obtaining, from one or more sensors corresponding to a right wheel of a vehicle, right wheel data as the vehicle traverses the road segment.

IPC Classes  ?

• G01C 21/34 - Route searchingRoute guidance
• G06T 13/60 - 3D [Three Dimensional] animation of natural phenomena, e.g. rain, snow, water or plants
• G06T 15/04 - Texture mapping
• G06T 17/05 - Geographic models
• G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts

Abstract

In one embodiment, one or more suspension systems of a vehicle may be used to mitigate motion sickness by limiting motion in one or more frequency ranges. In another embodiment, an active suspension may be integrated with an autonomous vehicle architecture. In yet another embodiment, the active suspension system of a vehicle may be used to induce motion in a vehicle. The vehicle may be used as a testbed for technical investigations and/or as a platform to enhance the enjoyment of video and/or audio by vehicle occupants. In some embodiments, the active suspensions system may be used to perform gestures as a means of communication with persons inside or outside the vehicle. In some embodiments, the active suspensions system may be used to generate haptic warnings to a vehicle operator or other persons in response to certain road situations.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/06 - Characteristics of dampers
• B60N 2/50 - Seat suspension devices
• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/04 - Fluid-spring characteristics
• B60G 17/052 - Pneumatic spring characteristics
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• B60G 99/00 - Subject matter not provided for in other groups of this subclass
• B60N 2/14 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable rotatable, e.g. to permit easy access
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60K 35/00 - Instruments specially adapted for vehiclesArrangement of instruments in or on vehicles
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• B60N 2/02 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable

Abstract

A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
• H02P 21/06 - Rotor flux based control involving the use of rotor position or rotor speed sensors
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/08 - Characteristics of fluid dampers
• B60G 99/00 - Subject matter not provided for in other groups of this subclass
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
• F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
• F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid

Abstract

Integrated multiple actuator electro-hydraulic systems as well as their methods of use are described. Depending on the particular application, the integrated electro-hydraulic systems may exhibit different frequency responses and/or may be integrated into a single combined unit.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/033 - Spring characteristics characterised by regulating means acting on more than one spring
• B60G 17/04 - Fluid-spring characteristics
• B60G 17/027 - Mechanical springs regulated by fluid means
• B60G 7/00 - Pivoted suspension armsAccessories thereof

Abstract

Methods and apparatus are disclosed for adjusting the front to rear ratio of roll damping and/or roll stiffness in a vehicle based on vehicle yaw rate and/or the rate of change of steering wheel angle. Also disclosed are methods and apparatus for dynamically adjusting one or more suspension system control parameters based on one or more of steering wheel angle, rate of change of steering wheel angle and yaw rate.

IPC Classes  ?

• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input

Abstract

In some embodiments, a rapid-response active suspension system controls suspension force and position for improving vehicle safety and drivability. The system may interface with various sensors that detect safety critical vehicle states and adjust the suspension of each wheel to improve safety. Pre-crash and collision sensors may notify the active suspension controller of a collision and the stance may be adjusted to improve occupant safety during an impact while maintaining active control of the wheels. Wheel forces may also be controlled to improve the effectiveness of vehicle safety systems such as ABS and ESP in order to improve traction. Also, bi-directional information may be communicated between the active suspension system and other vehicle safety systems such that each system may respond to information provided to the other.

IPC Classes  ?

• B60W 30/02 - Control of vehicle driving stability
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60G 17/02 - Spring characteristics
• B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
• B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention

Abstract

A regenerative shock absorber that includes a housing and a piston that moves at least partially through the housing when the shock is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor, in turn, drives an electric generator that produced electric energy. The electric energy may be provided to a vehicle, among other things. The regenerative shock absorber may also provide ride performance that comparable to or exceeds that of conventional shock absorbers.

IPC Classes  ?

• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• B60G 17/08 - Characteristics of fluid dampers
• B60K 25/10 - Auxiliary drives directly from oscillating movements due to vehicle running motion, e.g. suspension movement
• F03G 3/00 - Other motors, e.g. gravity or inertia motors
• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
• H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
• B60K 5/12 - Arrangement of engine supports

Abstract

A method of terrain-based localization of a vehicle is provided. The method may include determining the vehicle is within a threshold distance of a road segment end point and comparing a measured road profile to a reference road profile associated with the road segment. A method of identifying a track (e.g., a lane) of a road segment road profile is provided. The method may include determining if a number of stored road profiles exceeds a threshold number of road profiles and identifying one or more clusters in the stored road profiles if the threshold number is exceeded.

IPC Classes  ?

• G01S 19/47 - Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial
• G01S 19/51 - Relative positioning
• G01C 21/34 - Route searchingRoute guidance
• B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles

Abstract

System and method for improving braking efficiency by increasing the magnitude of a frictional force between a tire of a vehicle wheel and a road surface. Braking efficiency may be improved by controlling the normal force applied on the wheel, with an active suspension actuator, based on the wheel's slip ratio.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof

Abstract

Hydraulic systems and methods for reducing the propagation of flow and/or pressure fluctuations within a hydraulic system with a differential buffer are described. A differential buffer may include a first internal volume, a second internal volume, and a barrier separating at least a portion of the first internal volume and at least a portion of the second internal volume. The barrier may move to mitigate pressure and/or flow fluctuations in the first internal volume and the second internal volume by passive destructive interference.

IPC Classes  ?

• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• B60G 11/56 - Resilient suspensions characterised by arrangement, location, or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also fluid springs
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 1/32 - Cup springsDished disc springs
• F16F 9/08 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid in a chamber with a flexible wall
• B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper

Abstract

A vehicle control system for a vehicle having a braking system and active suspension system is provided. The vehicle control system may be configured to adjust a normal component of a wheel force at one or more wheels of the vehicle to increase an average traction force at the one or more wheels during a braking event. The vehicle control system may adjust a normal component of a wheel force at one or more wheels based on reference road information, forward-looking road information, and/or vehicle sensor data.

IPC Classes  ?

• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
• B60W 30/02 - Control of vehicle driving stability
• B60T 8/175 - Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
• B60T 8/1763 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface

Abstract

Disclosed embodiments are related to suspension systems including dampers and suspension actuators and related methods of control for mitigating the effects of potholes and other road surface discontinuities.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/08 - Characteristics of fluid dampers

Abstract

Methods are provided for controlling various systems in a vehicle based on input signals from at least one physical sensor and at least one model of a vehicle or a portion of the vehicle. The controller a rely preferentially on one or the other inputs based on the frequency of a motion of the vehicle and the state of the vehicle or one or mor portions of the vehicle.

IPC Classes  ?

• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input

Abstract

A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

IPC Classes  ?

• B60G 17/00 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
• B60G 17/052 - Pneumatic spring characteristics
• B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air

Abstract

Various systems and methods are disclosed for predicting, detecting or mitigating motion sickness of one or more occupants of a vehicle. Also, disclosed are systems and methods for measuring aspects of head motion and characteristics of at least one eye an occupant of a vehicle and using that information mitigate motion sickness..

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60W 40/08 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to drivers or passengers
• B60R 11/04 - Mounting of cameras operative during driveArrangement of controls thereof relative to the vehicle
• B60R 16/037 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for occupant comfort

Abstract

Various systems and methods are disclosed for providing a broad range of tools for selecting a route based on road information, vehicle information, and vehicle occupant information. Also disclosed are costs and tradeoffs which may be associated with various choices including wear and tear on vehicle components, occupant discomfort, increased trip duration and efficiency losses.

IPC Classes  ?

• G01C 21/34 - Route searchingRoute guidance
• G01C 21/00 - NavigationNavigational instruments not provided for in groups

Abstract

Presented herein, inter alia, are suspension system components having tuned accumulator sizing and/or stiffness. Such suspension system components are envisioned for use in a distributed active suspension system of a vehicle. In particular, through appropriate sizing of accumulators of a suspension system component of a vehicle, ride quality of the vehicle may be improved and so called “rough ride” issues may be precluded. Alternatively or additionally, various valves or alternative compliant mechanisms may be included in the suspension system component, so that desirable performance may be obtained for a range of operating conditions.

IPC Classes  ?

• B60G 17/08 - Characteristics of fluid dampers
• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
• F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper

Abstract

Disclosed herein are hydraulic actuators and methods for the operation of actuators having variable relative pressure ratios. Further disclosed are methods for designing and/or operating a hydraulic actuator such that the actuator exhibits a variable relative pressure ratio. In certain embodiments, the relative pressure ratio of the hydraulic actuator may be dependent on one or more characteristics (such as, for example, frequency or rate of change) of an oscillating input to the hydraulic actuator.

IPC Classes  ?

• F15B 11/08 - Servomotor systems without provision for follow-up action with only one servomotor
• B60G 17/04 - Fluid-spring characteristics

Abstract

Methods are provided for proactively controlling a component of a system. The system may comprise a vehicle and the component may comprise a suspension of the vehicle. According to various aspects, methods may include obtaining information regarding a travel surface along a travel path that the system will travel at a future time and, based on the information regarding the travel surface, controlling the component of the system to traverse the travel surface. Controlling the component based on the information regarding the travel surface may comprise comparing the information regarding the travel surface to information regarding at least one physical constraint of the system and/or comparing frequency content of the information regarding the travel surface to a threshold frequency. Proactive control methods may provide improved response to disturbances and improved tracking and isolation because a suspension may be controlled with reduced or substantially zero delay.

IPC Classes  ?

• B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
• B60G 17/00 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems

Abstract

Presented herein are systems and methods for attenuating flow ripple generated by a hydraulic pump. In certain aspects, a method and system for operating a hydraulic positive displacement pump according to a stabilized command profile are disclosed, such that flow ripple generated by operation of the pump according to the stabilized command profile is attenuated as compared to operation of the pump according to a corresponding nominal command profile. In other aspects, a pressure-balanced active buffer is disclosed that allow for at least partially cancelling flow ripple in a hydraulic circuit comprising a pump. In another aspect, a method for generating ripple maps for a pump is disclosed. Such ripple maps may be used, for example, to determine the stabilized command profile used to operate the pump, or may be used by the pressure-balanced active buffer to counteract ripple in the hydraulic circuit.

IPC Classes  ?

• F04B 49/06 - Control using electricity
• F04B 49/10 - Other safety measures
• F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
• F04C 28/08 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed

Abstract

Method and apparatus for improving the performance, response, and durability of an electro-hydraulic active suspension system. The noise caused by hydraulic flow ripple is reduced and system response is improved.

IPC Classes  ?

• F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
• F04B 49/10 - Other safety measures
• F04B 49/06 - Control using electricity
• F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
• B60G 15/08 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having fluid spring

Abstract

Hydraulic systems and methods for reducing the propagation of flow and/or pressure pulsations within a hydraulic system are described. In one embodiment, a hydraulic system may include a hydraulic device and a differential buffer fluidly connected to the hydraulic device. The differential buffer may include a piston that is exposed to pressure pulsations that propagate along separate flow paths and that are at least partially out of phase with one another. Corresponding displacement of the piston due to the out of phase pulsations may at least partially mitigate propagation of the pulsations within the hydraulic system downstream from the differential buffer.

IPC Classes  ?

• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• B60G 15/12 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having fluid spring and fluid damper
• B60G 11/26 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs
• B60G 11/27 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• B60G 17/04 - Fluid-spring characteristics
• B60G 11/56 - Resilient suspensions characterised by arrangement, location, or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also fluid springs
• B60G 2204/82 -
• B60G 2300/30 -
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
• B60G 2400/91 -
• B60G 2500/02 -
• B60G 2600/85 -
• B60G 2202/12 -
• B60G 2500/22 -
• F15B 2211/27 -
• F16F 9/08 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid in a chamber with a flexible wall
• F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
• B60G 2400/60 -

Abstract

In some embodiments, methods and systems may be used to control operation of various systems of the vehicle based on road features included in an upcoming portion of a road surface located along a path of travel of the vehicle. This control may either be based on a probability of encountering a road feature on the road surface 5 and/or frequency information related to the upcoming portion of the road surface.

IPC Classes  ?

• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine

Abstract

Embodiments related to methods and systems for localizing a vehicle on a road surface are described. In some embodiments, linked reference landmarks present on the road surface may be used to determine a location of a vehicle on the road surface and/or to predict a path of travel of the vehicle along the road surface.

IPC Classes  ?

• G01C 21/04 - NavigationNavigational instruments not provided for in groups by terrestrial means
• B60W 40/06 - Road conditions
• G01C 21/26 - NavigationNavigational instruments not provided for in groups specially adapted for navigation in a road network
• G01C 21/30 - Map- or contour-matching

Abstract

Systems and methods for determining the location of a vehicle are disclosed. In one embodiment, a method for localizing a vehicle includes driving over a first road segment, identifying by a first localization system a set of candidate road segments, obtaining vertical motion data while driving over the first road segment, comparing the obtained vertical motion data to reference vertical motion data associated with at least one candidate road segment, and identifying, based on the comparison, a location of the vehicle. The use of such localization methods and systems in coordination with various advanced vehicle systems such as, for example, active suspension systems or autonomous driving features, is contemplated.

IPC Classes  ?

• G05D 1/02 - Control of position or course in two dimensions
• B60W 40/06 - Road conditions
• G01C 21/30 - Map- or contour-matching
• B60W 50/04 - Monitoring the functioning of the control system

Abstract

Disclosed herein are active hydraulic cylinders for use in active vehicle suspension systems, and methods for assembling active hydraulic cylinders for use in an active vehicle suspension system. In particular, in certain embodiments a manifold may encircle a portion of an outer tube of a twin tube assembly. The manifold may mechanically and fluidly couple a pump assembly to the twin tube assembly. In certain embodiments, the manifold may be welded onto the outer tube.

IPC Classes  ?

• F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
• B60G 17/08 - Characteristics of fluid dampers
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 9/34 - Special valve constructionsShape or construction of throttling passages
• F16F 9/50 - Special means providing automatic damping adjustment

Abstract

A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators.

IPC Classes  ?

• F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine
• B60G 11/26 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs
• B60G 17/08 - Characteristics of fluid dampers
• F01C 1/10 - Rotary-piston machines or engines of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F01C 13/00 - Adaptations of machines or engines for special useCombinations of engines with devices driven thereby
• B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
• F01C 9/00 - Oscillating-piston machines or engines
• F03C 1/26 - Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby

Goods & Services

Computer software and/or hardware for collection, manipulation, and/or transfer of information related to the operation of a vehicle on a road surface; computer hardware and/or software for collection, manipulation, management, and/or exchange of information about the interaction of a vehicle with a road surface; computer hardware and/or software for controlling systems in a vehicle including suspension systems, braking systems, steering systems, and/or propulsion systems; computer hardware and/or software for route selection for a vehicle; computer hardware and/or software for vehicle localization; computer hardware and/or software for vehicle navigation; computer hardware and/or software for storing, accessing, displaying, and/or using digital maps for vehicle navigation; computer hardware and/or software for vehicle diagnostics and/or prognostics; computer hardware and/or software for determination of road characteristics.

Abstract

Method and apparatus for improving the performance, response, and durability of an electro-hydraulic active suspension system. The noise caused by hydraulic flow ripple is reduced and system response is improved.

IPC Classes  ?

• F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
• F04B 49/10 - Other safety measures
• F04B 49/06 - Control using electricity
• F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed

Abstract

Localization systems, including road surface-based localization systems, are disclosed that may work in conjunction with less precise systems, such as GPS, to accurately locate a vehicle on a road segment. Methods and apparatus are disclosed for the identification and selection of landmarks, including road surface-based landmarks.

IPC Classes  ?

• G05D 1/02 - Control of position or course in two dimensions
• G01C 21/14 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by recording the course traversed by the object
• G01C 21/20 - Instruments for performing navigational calculations
• B60W 30/02 - Control of vehicle driving stability
• B60W 30/10 - Path keeping
• B60W 30/18 - Propelling the vehicle

Abstract

Active suspension actuator systems including an actuator with a compression volume and an extension volume are described. In some embodiments, the system includes one or more flow control devices in fluid communication with the compression volume and/or the extension volume of the actuator. In some instances, a flow control device may include a pressure balanced blow-off valve (PBOV). In some embodiments, the system includes a high capacity bidirectional base valve. In some embodiments, two or more flow control devices cooperate to, for example, damp low amplitude oscillations in the extension and/or compression volumes, and to allow the build-up of pump generated differential pressures while discharging rapid road induced differential pressure spikes between the extension and compression volumes.

IPC Classes  ?

• F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper

Goods & Services

electro-hydraulic pump; integrated hydraulic pump and electric motor units for vehicles; electrically driven hydraulic pump units for vehicles

Goods & Services

actuators, linear electro-hydraulic actuators, hydraulic regulating elements in the nature of electro-hydraulic actuators downloadable computer software for monitoring and controlling systems in vehicles, namely, electric actuators, electro-hydraulic actuators, suspension systems, chassis systems, and actuators; actuators, namely, electric actuators, and electro-hydraulic actuators; vehicle parts, namely, electric actuators vehicle parts, namely, suspension system components in the nature of actuators, chassis system components in the nature of suspension systems for automobiles providing temporary use of on-line non-downloadable computer software for monitoring and controlling systems in vehicles, namely, electric actuators, electro-hydraulic actuators, suspension systems, chassis systems, and actuators

Abstract

Methods and apparatus are disclosed for adjusting the front to rear ratio of roll damping and/or roll stiffness in a vehicle based on vehicle yaw rate and/or the rate of change of steering wheel angle. Also disclosed are methods and apparatus for dynamically adjusting one or more suspension system control parameters based on one or more of steering wheel angle, rate of change of steering wheel angle and yaw rate.

IPC Classes  ?

• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
• B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems

Abstract

Apparatus and methods are described where multiple linear and/or rotary actuators operate cooperatively in, for example, cross-linked arrangements to control the motion of sprung and unsprung masses in a vehicle. The actuators may include linear primary suspension actuators, spring perch actuators and/or rotary roll-bar actuators that, in some operating modes, are driven directly or indirectly by one or more hydraulic machines.

IPC Classes  ?

• B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• B60G 17/027 - Mechanical springs regulated by fluid means
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• B60G 21/055 - Stabiliser bars

Abstract

System and method for improving braking efficiency by increasing the magnitude of a frictional force between a tire of a vehicle wheel and a road surface. Braking efficiency may be improved by controlling the normal force applied on the wheel, with an active suspension actuator, based on the wheel's slip ratio.

IPC Classes  ?

• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
• B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
• B60W 30/02 - Control of vehicle driving stability

Abstract

Systems and methods for determining the location of a vehicle are disclosed. In one embodiment, a method for localizing a vehicle includes driving over a first road segment, identifying by a first localization system a set of candidate road segments, obtaining vertical motion data while driving over the first road segment, comparing the obtained vertical motion data to reference vertical motion data associated with at least one candidate road segment, and identifying, based on the comparison, a location of the vehicle. The use of such localization methods and systems in coordination with various advanced vehicle systems such as, for example, active suspension systems or autonomous driving features, is contemplated.

IPC Classes  ?

• B60G 21/08 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces characterised by use of gyroscopes
• B60G 21/00 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces