Abstract

An actuator system has a power source, an output member, a first fluidic coupling and a second fluidic coupling. The fluidic couplings generate a variable amount of torque transmission. A transmission operatively couples the fluidic couplings to the power source and to the output member in at least first load path and a second load path, the first load path and the second load path being parallel to one another, the first load path including the first fluidic coupling, the second load path including the second fluidic coupling. The fluidic couplings are operable for torque from the power source to be transmitted solely via the first load path, solely via the second load path, and cumulatively via the first load path and the second load path.

IPC Classes  ?

• F16H 47/07 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type using two or more power-transmitting fluid circuits

Abstract

A magnetorheological fluid clutch apparatus may include an input assembly, and an output assembly. An annular space separating shear surfaces of the input assembly from the output assembly. Magnetorheological (MR) fluid in an MR fluid chamber including the at least one annular space, the MR fluid configured to transmit a variable amount of torque between the input assembly and the output assembly when subjected to a magnetic field. A coil(s) actuatable to deliver a magnetic field through the MR fluid in the annular space, the magnetic field controllable to transmit a variable amount of torque from the input assembly to the output assembly. A totality of seal(s) and bearing(s) contacting the output assembly are between the output assembly and the structure.

IPC Classes  ?

• F16D 35/00 - Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• G05G 5/03 - Means for enhancing the operator's awareness of the arrival of the controlling member at a command or datum positionProviding feel, e.g. means for creating a counterforce

Abstract

A system comprises one or more wearable devices including a first body interface adapted to be secured to a first bodily part. A second body interface is adapted to be secured to a second bodily part separated from the first bodily part by a physiological joint. One or more joints provide one or more degrees of freedom between the first body interface and the second body interface. A magnetorheological (MR) fluid actuator unit comprises one or more power sources. An MR fluid clutch apparatus receiving torque from the at least one power source, the at least one MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. A transmission couples the MR fluid actuator unit to the wearable device for converting torque from the MR fluid actuator unit to relative movement of the body interfaces with respect to one another.

IPC Classes  ?

• A61F 2/70 - Operating or control means electrical
• A61F 2/68 - Operating or control means
• A61F 2/74 - Operating or control means fluid
• A61F 5/01 - Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
• A61H 1/02 - Stretching or bending apparatus for exercising
• B25J 9/00 - Programme-controlled manipulators
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A proprioceptive magnetorherological (MR) fluid actuator unit may include a bi-directional motor assembly. A MR fluid clutch apparatus connected to the bi-directional motor assembly, the MR fluid clutch apparatus controllable to transfer a variable amount of force from the bi-directional motor between at least two bodies using a reduction mechanism having a reduction ratio greater than 10:1. A processing unit is configured for: receiving the data from sensor(s), determining from the data that the bi-directional motor assembly has to accelerate or decelerate by a given value to control a relative speed between input and output of the MR fluid clutch apparatus to transmit a desired force between the two bodies, controlling the bi-directional motor to accelerate or decelerate toward the given value, and concurrently operating the MR fluid clutch apparatus to transmit the desired force between the bodies while maintaining a brake torque to inertia ratio over a haptic limit.

IPC Classes  ?

• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• B25J 9/16 - Programme controls
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

IPC Classes  ?

• F16D 35/00 - Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
• F16F 15/03 - 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 using electromagnetic means
• F16F 15/22 - Compensation of inertia forces

Abstract

A system for operating a magnetorherological (MR) fluid actuator unit between bodies mau have at least one MR fluid actuator unit including a motor assembly, the motor assembly operating within a first frequency range, and a MR fluid clutch apparatus connected to the motor assembly to apply a variable amount of force from the motor assembly between at least two of the bodies, the MR fluid clutch apparatus operating within a second frequency range, the second frequency range being higher than the first frequency range. At least one sensor provides data indicative of a state of at least one of the bodies. The system may be used for: receiving the data from the at least one sensor; determining from the data that the motor assembly has to accelerate or decelerate to control an amplitude and direction of a relative speed between input and output of the MR fluid clutch apparatus to transmit a desired force between the bodies; controlling the motor assembly to accelerate or decelerate toward the given value at the first frequency range, and concurrently reducing a torque transmission from the MR fluid clutch apparatus during a lag period in which the torque transmission acts opposite to the desired force.

IPC Classes  ?

• F16F 15/03 - 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 using electromagnetic means
• F16D 35/00 - Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
• F16F 15/22 - Compensation of inertia forces

Abstract

A magnetorheological (MR) actuator device comprising two or more MR actuator units. Each of the MR actuator units may include a motor, an MR fluid clutch apparatus operatively coupled to the motor to receive torque from the motor, the MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. An output member is provided, a transmission operatively coupling the at least two MR actuator units to the output member, for the output member to receive torque from the MR actuator units. A controller for controlling the two or more MR actuator units to drive the output member, the controller driving the output member in at least an antagonistic mode in which the MR actuator units transmit torque in opposite directions to the output member. A collaborative mode may be provided to combined the torque of the two or more MR actuator units in a common direction on the output member.

IPC Classes  ?

• F16H 47/00 - Combinations of mechanical gearing with fluid clutches or fluid gearing
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators

Abstract

A system for operating at least one magnetorheological fluid clutch apparatus may, in a first mode, vary an amount of torque transmission between a driving member and a driven member in the at least one magnetorheological fluid clutch apparatus by actuating at least one coil in the at least one magnetorheological fluid clutch apparatus. In a second mode, the system may cause torque transmission between the driven member and the driving member by setting a desired remanent magnetization level in a magnetic component of the at least one magnetorheological fluid clutch apparatus by actuating the at least one coil in the at least one magnetorheological fluid clutch apparatus.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• E05F 15/611 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive

Abstract

An actuator system has a power source, an output member, a first fluidic coupling and a second fluidic coupling. The fluidic couplings generate a variable amount of torque transmission. A transmission operatively couples the fluidic couplings to the power source and to the output member in at least first load path and a second load path, the first load path and the second load path being parallel to one another, the first load path including the first fluidic coupling, the second load path including the second fluidic coupling. The fluidic couplings are operable for torque from the power source to be transmitted solely via the first load path, solely via the second load path, and cumulatively via the first load path and the second load path.

IPC Classes  ?

• F16H 48/26 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using fluid action, e.g. viscous clutches
• B60K 6/00 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
• B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
• B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
• B60K 23/00 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
• B62M 6/10 - Rider propelled cycles with auxiliary combustion engine
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16H 45/00 - Combinations of fluid gearings for conveying rotary motion with couplings or clutches
• F16H 47/00 - Combinations of mechanical gearing with fluid clutches or fluid gearing
• F16H 48/05 - Multiple interconnected differential sets

Abstract

An actuator system has a power source, an output member, a first fluidic coupling and a second fluidic coupling. The fluidic couplings generate a variable amount of torque transmission. A transmission operatively couples the fluidic couplings to the power source and to the output member in at least first load path and a second load path, the first load path and the second load path being parallel to one another, the first load path including the first fluidic coupling, the second load path including the second fluidic coupling. The fluidic couplings are operable for torque from the power source to be transmitted solely via the first load path, solely via the second load path, and cumulatively via the first load path and the second load path.

IPC Classes  ?

• B60K 6/00 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
• B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
• B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
• B60K 23/00 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
• B62M 6/10 - Rider propelled cycles with auxiliary combustion engine
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16H 45/00 - Combinations of fluid gearings for conveying rotary motion with couplings or clutches
• F16H 47/00 - Combinations of mechanical gearing with fluid clutches or fluid gearing
• F16H 48/05 - Multiple interconnected differential sets
• F16H 48/26 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using fluid action, e.g. viscous clutches

Abstract

A system for assisting a user in moving a device relative to a structure comprises a magnetorheological (MR) fluid actuator unit including at least one torque source and at least one MR fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of assistance force via an output thereof. An interface is configured for coupling the output of the at least one MR fluid clutch apparatus to the device or surrounding structure. At least one sensor provides information about a movement of the device. A processor unit for controlling the at least one MR fluid clutch apparatus in exerting the variable amount of assistance force as a function of said information, wherein the system is configured for one of the MR fluid actuator unit and the interface to be coupled to the structure, and for the other of the MR fluid actuator unit and the interface to be coupled to the device for the assistance force from the MR fluid actuator unit to assist in moving the device.

IPC Classes  ?

• B62M 6/55 - Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
• B62M 6/45 - Control or actuating devices therefor
• B62M 19/00 - Transmissions characterised by use of non-mechanical gearing, e.g. fluid gearing
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• E05F 15/60 - Power-operated mechanisms for wings using electrical actuators
• E05F 15/627 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation
• B62B 5/00 - Accessories or details specially adapted for hand carts
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B62M 11/14 - Transmissions characterised by use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
• B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
• E05F 15/611 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
• F16H 1/16 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel

Abstract

A magnetorheological fluid clutch apparatus comprises an input(s) having an input shear surface(s). An output(s) is rotatably mounted about the input for rotating about a common axis with the input, the output(s) having output shear surface(s), the input shear surface and the output shear surface separated annular space(s), with magnetorheological fluid, configured to generate a variable amount of torque transmission between the sets of input rotor and output rotor when subjected to a magnetic field. An electromagnet(s) delivers a magnetic field through the magnetorheological fluid, the electromagnet configured to vary the strength of the magnetic field, whereby actuation of the electromagnet results in torque transmission from the input to the output. A member(s) defining at least one of the shear surfaces is made of a low-permeability material.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive

Abstract

A magnetorheological (MR) actuator device comprising two or more MR actuator units. Each of the MR actuator units may include a motor, an MR fluid clutch apparatus operatively coupled to the motor to receive torque from the motor, the MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. An output member is provided, a transmission operatively coupling the at least two MR actuator units to the output member, for the output member to receive torque from the MR actuator units. A controller for controlling the two or more MR actuator units to drive the output member, the controller driving the output member in at least an antagonistic mode in which the MR actuator units transmit torque in opposite directions to the output member. A collaborative mode may be provided to combined the torque of the two or more MR actuator units in a common direction on the output member.

IPC Classes  ?

• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• B25J 9/18 - Programme controls electric
• F16D 28/00 - Electrically-actuated clutches
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• F16H 37/06 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts
• F16H 47/00 - Combinations of mechanical gearing with fluid clutches or fluid gearing
• H02N 2/00 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction

Abstract

A magnetorheological (MR) actuator device comprising two or more MR actuator units. Each of the MR actuator units may include a motor, an MR fluid clutch apparatus operatively coupled to the motor to receive torque from the motor, the MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. An output member is provided, a transmission operatively coupling the at least two MR actuator units to the output member, for the output member to receive torque from the MR actuator units. A controller for controlling the two or more MR actuator units to drive the output member, the controller driving the output member in at least an antagonistic mode in which the MR actuator units transmit torque in opposite directions to the output member. A collaborative mode may be provided to combined the torque of the two or more MR actuator units in a common direction on the output member.

IPC Classes  ?

• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• B25J 9/18 - Programme controls electric
• F16D 28/00 - Electrically-actuated clutches
• F16H 37/06 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts
• F16H 47/00 - Combinations of mechanical gearing with fluid clutches or fluid gearing
• H02N 2/00 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction

Abstract

A system for operating at least one magnetorheological fluid clutch apparatus may, in a first mode, vary an amount of torque transmission between a driving member and a driven member in the at least one magnetorheological fluid clutch apparatus by actuating at least one coil in the at least one magnetorheological fluid clutch apparatus. In a second mode, the system may cause torque transmission between the driven member and the driving member by setting a desired remanent magnetization level in a magnetic component of the at least one magnetorheological fluid clutch apparatus by actuating the at least one coil in the at least one magnetorheological fluid clutch apparatus.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure

Abstract

A system for operating at least one magnetorheological fluid clutch apparatus may, in a first mode, vary an amount of torque transmission between a driving member and a driven member in the at least one magnetorheological fluid clutch apparatus by actuating at least one coil in the at least one magnetorheological fluid clutch apparatus. In a second mode, the system may cause torque transmission between the driven member and the driving member by setting a desired remanent magnetization level in a magnetic component of the at least one magnetorheological fluid clutch apparatus by actuating the at least one coil in the at least one magnetorheological fluid clutch apparatus.

IPC Classes  ?

• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A control system for controlling movements of an end effector connected to a clutch output of magnetorheological (MR) fluid clutch apparatuses. A clutch driver drives the MR fluid clutch apparatuses between a controlled slippage mode, in which slippage in the MR fluid clutch apparatuses varies, and a combined mode, in which slippage between clutch input and clutch output is maintained below a given threshold simultaneously for both of the MR fluid clutch apparatuses, the two clutch outputs resisting movement of the end effector in the same direction. A mode selector module receives signals representative of a movement parameter(s) of the end effector, to select and switch a mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements.

IPC Classes  ?

• B25J 9/16 - Programme controls
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• 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
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive

Abstract

The invention relates to a device designed to be positioned close to a joint between two parts, the device comprising a first interface (11) borne by a first of the two parts and a second interface (22) borne by a second of the two parts, the device comprising at least one connection between the first interface and the second interface. According to the invention, the connection comprises two actuators (31, 32) mounted in parallel such that each actuator is connected by its output rod to the first interface and by its body to the second interface, the simultaneous movement of the two output rods (35, 36) serving, in operation, to move the second part of the joint relative to the first part of the joint. The invention also relates to a system comprising such a device and to a unit for supplying fluid to said device.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators

Abstract

A system for assisting a user in moving a device relative to a structure comprises a magnetorheological (MR) fluid actuator unit including at least one torque source and at least one MR fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of assistance force via an output thereof. An interface is configured for coupling the output of the at least one MR fluid clutch apparatus to the device or surrounding structure. At least one sensor provides information about a movement of the device. A processor unit for controlling the at least one MR fluid clutch apparatus in exerting the variable amount of assistance force as a function of said information, wherein the system is configured for one of the MR fluid actuator unit and the interface to be coupled to the structure, and for the other of the MR fluid actuator unit and the interface to be coupled to the device for the assistance force from the MR fluid actuator unit to assist in moving the device.

IPC Classes  ?

• B62M 6/55 - Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
• B62M 6/45 - Control or actuating devices therefor
• B62M 19/00 - Transmissions characterised by use of non-mechanical gearing, e.g. fluid gearing
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• E05F 15/60 - Power-operated mechanisms for wings using electrical actuators
• E05F 15/627 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation
• B62B 5/00 - Accessories or details specially adapted for hand carts
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B62M 11/14 - Transmissions characterised by use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
• B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
• E05F 15/611 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
• F16H 1/16 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel

Abstract

An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

IPC Classes  ?

• B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
• B62D 17/00 - Means on vehicle for adjusting camber, castor, or toe-in
• B60N 2/50 - Seat suspension devices
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• B60G 99/00 - Subject matter not provided for in other groups of this subclass
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• 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 2/16 - 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 height-adjustable
• 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 21/055 - Stabiliser bars
• F16D 47/06 - Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the following sets of groups: of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive

Abstract

A system for controlling a tension of a tether between an object and a load tethered to the object comprises magnetorheological (MR) fluid actuator unit(s) including at least one torque source and at least one MR fluid clutch apparatus coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output of the MR fluid actuator unit. A tensioning member is connected to the output so as to be pulled by the output member upon actuation of the magnetorheological fluid clutch apparatus, a free end of the tensioning member adapted to exert a pulling action when being pulled by the output member. Sensor(s) provide information indicative of a relation between the object and the load tethered to the object. A controller controls the at least one MR fluid clutch apparatus in exerting the pulling action based on said information.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• B64C 39/02 - Aircraft not otherwise provided for characterised by special use
• B64D 1/22 - Taking-up articles from earth's surface
• B66C 13/08 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for depositing loads in desired attitudes or positions
• B66D 1/14 - Power transmissions between power sources and drums or barrels
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure

Abstract

The invention relates to a device intended to be positioned close to a joint between two parts, the device comprising a first interface (11) borne by a first of its two parts and a second interface (12) borne by a second of the two parts, the device comprising at least one connection between the first interface and the second interface, the connection comprising a double cylinder which comprises two chambers connected to each other by a floating piston, a first of the two chambers being connected to the first interface and a second of the two chambers being connected to an output rod of the double cylinder, said rod being connected to the second interface. The invention also relates to a system comprising a device of this kind.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators
• B25J 9/14 - Programme-controlled manipulators characterised by positioning means for manipulator elements fluid
• F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type

Abstract

A magnetorheological fluid clutch apparatus comprises an input(s) having an input shear surface(s). An output(s) is rotatably mounted about the input for rotating about a commonaxis with the input, the output(s) having output shear surface(s), the input shear surface and the output shear surface separated annular space(s). with magnetorheological fluid, configured to generate a variable amount of torque transmission between the sets of input rotor and output rotor when subjected to a magnetic field. An electromagnet(s) delivers a magnetic field through the magnetorheological fluid, the electromagnet configured to vaty the strength of the magnetic field, whereby actuation of the electromagnet results in torque transmission from the input to the output. A member(s) defining at least one of the shear surfaces is made of a low-permeability material.

IPC Classes  ?

• F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A magnetorheological fluid clutch apparatus comprises an input(s) having an input shear surface(s). An output(s) is rotatably mounted about the input for rotating about a common axis with the input, the output(s) having output shear surface(s), the input shear surface and the output shear surface separated annular space(s). with magnetorheological fluid, configured to generate a variable amount of torque transmission between the sets of input rotor and output rotor when subjected to a magnetic field. An electromagnet(s) delivers a magnetic field through the magnetorheological fluid, the electromagnet configured to vary the strength of the magnetic field, whereby actuation of the electromagnet results in torque transmission from the input to the output. A member(s) defining at least one of the shear surfaces is made of a low-permeability material.

IPC Classes  ?

• F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A system comprises one or more wearable devices including a first body interface adapted to be secured to a first bodily part. A second body interface is adapted to be secured to a second bodily part separated from the first bodily part by a physiological joint. One or more joints provide one or more degrees of freedom between the first body interface and the second body interface. A magnetorheological (MR) fluid actuator unit comprises one or more power sources. An MR fluid clutch apparatus receiving torque from the at least one power source, the at least one MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. A transmission couples the MR fluid actuator unit to the wearable device for converting torque from the MR fluid actuator unit to relative movement of the body interfaces with respect to one another.

IPC Classes  ?

• A61F 2/70 - Operating or control means electrical
• A61F 5/01 - Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
• B25J 9/00 - Programme-controlled manipulators
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A control system for controlling movements of an end effector connected to a clutch output of magnetorheological (MR) fluid clutch apparatuses. A clutch driver drives the MR fluid clutch apparatuses between a controlled slippage mode, in which slippage in the MR fluid clutch apparatuses varies, and a combined mode, in which slippage between clutch input and clutch output is maintained below a given threshold simultaneously for both of the MR fluid clutch apparatuses, the two clutch outputs resisting movement of the end effector in the same direction. A mode selector module receives signals representative of a movement parameter(s) of the end effector, to select and switch a mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 47/06 - Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the following sets of groups: of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• F16H 48/26 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using fluid action, e.g. viscous clutches

Abstract

A control system for controlling movements of an end effector connected to a clutch output of at least two magnetorheological (MR) fluid clutch apparatus, the control system comprises a clutch driver configured to drive the at least two MR fluid clutch apparatuses between at least a controlled slippage mode, in which slippage between a clutch input and the clutch output of the MR fluid clutch apparatuses varies, and a combined mode, in which said slippage between the clutch input and the clutch output is maintained below a given threshold simultaneously for both of the MR fluid clutch apparatuses, the two clutch outputs resisting movement of the end effector in the same direction. A motor driver is configured to control a motor output of at least one motor, the motor output coupled to at least one clutch input. A mode selector module is configured to receive signals representative of at least one movement parameter of the end effector, the mode selector module selecting a mode between at least the controlled slippage mode and the combined mode of the clutch driver based on the signals, and switching the selected mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on at least one of the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 47/06 - Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the following sets of groups: of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• F16H 48/26 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using fluid action, e.g. viscous clutches

Goods & Services

Turbine and internal combustion engines for marine and aerospace vehicles; gas turbine engines for generating power and parts and fittings therefor and recorded software for operating the engines sold together as a unit; parts for gas turbine engines for generating power, namely, rim-rotors being composite rotating shrouds for maintaining compression within a turbine, ceramic blade turbine wheels, high-speed motors and generators, combustors, and heat exchangers; magnetorheological fluid actuator systems other than for land vehicles comprising magnetorheological fluid clutch apparatuses, electrical motors not for land vehicles, electrical generators, and rotary-to-rotary and rotary-to-linear movement converters not for land vehicles; Industrial collaborative robots Human-hybrid powertrains, namely, transmission mechanisms for land vehicles or moving equipment that incorporate a magnetorheological fluid clutch apparatus; magnetorheological fluid actuator systems for land vehicles comprising magnetorheological fluid clutch apparatuses, electrical motors, electrical generators, and rotary-to-rotary and rotary-to-linear movement converters Custom design of hydraulic, pneumatic and electronic components and controls for mechatronic systems with magnetorheological fluid; Engineering services and design for others in the field of magnetorheological fluid clutch apparatus; Custom design of gas turbine engines; Engineering services in the field of gas turbines

Goods & Services

Turbine and internal combustion engines for marine and aerospace vehicles; Gas turbine engines for generating power with parts, fittings, high speed motors, high speed generators and heat exchangers for recuperated cycle gas turbine therefor; Magnetorheological fluid actuator systems; Industrial collaborative robots. Software designated for gas turbine engines for power generation. Human-hybrid powertrain for a vehicle or moving equipment using magnetorheological fluid clutch apparatus; Turbine and internal combustion engines for land vehicles. Custom design of hydraulic, pneumatic and electronic components and controls for mechatronic systems with magnetorheological fluid; Engineering services and design for others in the field of magnetorheological fluid clutch apparatus; Custom design of gas turbine engines; Engineering services in the field of gas turbines.

Abstract

A system comprises magnetorheological fluid clutch apparatuses, each magnetorheological fluid clutch apparatus including a first rotor having at least one first shear surface, a second rotor rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space, magnetorheological (MR) fluid in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field, and coil(s) actuatable to deliver a magnetic field through the MR fluid such that each said magnetorheological fluid clutch apparatus is actuatable to selectively transmit actuation by controlled slippage of the rotors with respect to one another. The MR fluid chambers of the second magnetorheological fluid clutch apparatuses are in fluid communication for the MR fluid to circulate between the magnetorheological fluid clutch apparatuses.

IPC Classes  ?

• F16D 27/12 - Clutch systems with a plurality of electromagnetically-actuated clutches
• F16D 25/12 - Details not specific to one of the before-mentioned types
• F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• F16H 15/01 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A telepresence controller is provided for interaction with a remote telepresence session to control haptic interactions between an end effector and the remote telepresence session. Force sensor(s) monitor force(s) applied to an end effector. Position sensor(s) monitor a position of the end effector. The telepresence controller communicates with the remote telepresence session to exchange position data and force data indicative of concurrent haptic movements of the end effector and an object in the remote telepresence session. Magnetorheological fluid clutch apparatus(es) have an input adapted to be connected to a power source and configured to receive a degree of actuation (DOA) therefrom, the magnetorheological fluid clutch apparatus(es) having an output being actuatable to selectively transmit the received DOA to the end effector by controlled slippage. A force controller module determines a force input required on the end effector as a function of haptic events for the object in the remote telepresence session. A clutch driver module drives the magnetorheological fluid clutch apparatus with the controlled slippage being as a function of the force input.

IPC Classes  ?

• B25J 13/02 - Hand grip control means
• B25J 9/16 - Programme controls
• B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A control system is provided for controlling movements of an end effector connected to a clutch output of at least one magnetorheological (MR) fluid clutch apparatus. A clutch driver is configured to drive the at least one MR fluid clutch apparatus between a controlled slippage mode, in which slippage between a clutch input and the clutch output of the MR fluid clutch apparatus varies, and a lock mode, in which said slippage between the clutch input and the clutch output is maintained below a given threshold, the clutch output transmitting movement to the end effector. A motor driver is configured to control a motor output of at least one motor, the motor output coupled to the clutch input. A mode selector module is configured to receive signals representative of at least one movement parameter of the end effector, the mode selector module selecting a mode between the controlled slippage mode and the lock mode of the clutch driver based on the signals, and switching the selected mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on at least one of the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements. A method for controlling movements of an end effector connected to the MR fluid clutch apparatus is also provided.

IPC Classes  ?

• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• B25J 9/12 - Programme-controlled manipulators characterised by positioning means for manipulator elements electric
• B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
• F16D 27/10 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• B25J 9/16 - Programme controls
• F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
• B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
• B25J 19/06 - Safety devices
• B25J 9/14 - Programme-controlled manipulators characterised by positioning means for manipulator elements fluid

Abstract

An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

IPC Classes  ?

• A61G 1/04 - Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
• A61G 1/052 - Struts, spars or legs
• 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
• B60N 2/16 - 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 height-adjustable
• B60N 2/50 - Seat suspension devices
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16F 9/50 - Special means providing automatic damping adjustment

Abstract

An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• A61G 1/04 - Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
• A61G 1/052 - Struts, spars or legs
• 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
• B60N 2/16 - 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 height-adjustable
• B60N 2/50 - Seat suspension devices
• F16F 9/50 - Special means providing automatic damping adjustment

Abstract

A system for controlling a tension of a tether between an object and a load tethered to the object comprises magnetorheological (MR) fluid actuator unit(s) including at least one torque source and at least one MR fluid clutch apparatus coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output of the MR fluid actuator unit. A tensioning member is connected to the output so as to be pulled by the output member upon actuation of the magnetorheological fluid clutch apparatus, a free end of the tensioning member adapted to exert a pulling action when being pulled by the output member. Sensor(s) provide information indicative of a relation between the object and the load tethered to the object. A controller controls the at least one MR fluid clutch apparatus in exerting the pulling action based on said information.

IPC Classes  ?

• B64D 3/00 - Aircraft adaptations to facilitate towing or being towed
• B66C 13/06 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
• B66D 1/14 - Power transmissions between power sources and drums or barrels
• B66D 1/52 - Control devices automatic for varying rope or cable tension, e.g. when recovering craft from water
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 48/12 - Control of torque transfer between driven axles
• G05D 15/01 - Control of mechanical force or stressControl of mechanical pressure characterised by the use of electric means
• H02N 11/00 - Generators or motors not provided for elsewhereAlleged perpetua mobilia obtained by electric or magnetic means

Abstract

A system for controlling a tension of a tether between an object and a load tethered to the object comprises magnetorheological (MR) fluid actuator unit(s) including at least one torque source and at least one MR fluid clutch apparatus coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output of the MR fluid actuator unit. A tensioning member is connected to the output so as to be pulled by the output member upon actuation of the magnetorheological fluid clutch apparatus, a free end of the tensioning member adapted to exert a pulling action when being pulled by the output member. Sensor(s) provide information indicative of a relation between the object and the load tethered to the object. A controller controls the at least one MR fluid clutch apparatus in exerting the pulling action based on said information.

IPC Classes  ?

• B66D 1/52 - Control devices automatic for varying rope or cable tension, e.g. when recovering craft from water
• B64D 3/00 - Aircraft adaptations to facilitate towing or being towed
• B66C 13/06 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
• B66D 1/14 - Power transmissions between power sources and drums or barrels
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 48/12 - Control of torque transfer between driven axles
• G05D 15/01 - Control of mechanical force or stressControl of mechanical pressure characterised by the use of electric means
• H02N 11/00 - Generators or motors not provided for elsewhereAlleged perpetua mobilia obtained by electric or magnetic means

Goods & Services

(1) Turbine and internal combustion engines for land, marine and air vehicles, gas turbine engines for generating power with parts, fittings, embedded software and accessories therefor; Magnetorheological fluid actuator systems; Industrial collaborative robots. (2) Hybrid vehicle powertrain using magnetorheological clutch apparatus; turbine and internal combustion engines for land vehicles. (1) Custom design of hydraulic, pneumatic and electronic components and controls for mechatronic systems with magnetorheological fluid; Engineering services and design for others in the field of magnetorheological fluid clutch apparatus; Custom design of gas turbine engines for others; Engineering services in the field of gas turbines

Abstract

A system for assisting a user in moving a device relative to a structure comprises a magnetorheological (MR) fluid actuator unit including at least one torque source and at least one MR fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of assistance force via an output thereof. An interface is configured for coupling the output of the at least one MR fluid clutch apparatus to the device or surrounding structure. At least one sensor provides information about a movement of the device. A processor unit for controlling the at least one MR fluid clutch apparatus in exerting the variable amount of assistance force as a function of said information, wherein the system is configured for one of the MR fluid actuator unit and the interface to be coupled to the structure, and for the other of the MR fluid actuator unit and the interface to be coupled to the device for the assistance force from the MR fluid actuator unit to assist in moving the device.

IPC Classes  ?

• B62M 6/55 - Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
• B62M 6/45 - Control or actuating devices therefor
• B62M 19/00 - Transmissions characterised by use of non-mechanical gearing, e.g. fluid gearing
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• E05F 15/60 - Power-operated mechanisms for wings using electrical actuators
• E05F 15/627 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation
• B62B 5/00 - Accessories or details specially adapted for hand carts
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B62M 11/14 - Transmissions characterised by use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
• B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
• E05F 15/611 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
• F16H 1/16 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel

Abstract

A system comprises one or more wearable devices including a first body interface adapted to be secured to a first bodily part. A second body interface is adapted to be secured to a second bodily part separated from the first bodily part by a physiological joint. One or more joints provide one or more degrees of freedom between the first body interface and the second body interface. A magnetorheological (MR) fluid actuator unit comprises one or more power sources. An MR fluid clutch apparatus receiving torque from the at least one power source, the at least one MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. A transmission couples the MR fluid actuator unit to the wearable device for converting torque from the MR fluid actuator unit to relative movement of the body interfaces with respect to one another.

IPC Classes  ?

• A61F 2/50 - Prostheses not implantable in the body
• A61F 2/54 - Artificial arms or hands or parts thereof
• A61F 2/60 - Artificial legs or feet or parts thereof
• A61F 2/68 - Operating or control means
• A61F 5/01 - Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
• A61H 3/00 - Appliances for aiding patients or disabled persons to walk about

Abstract

A system comprises one or more wearable devices including a first body interface adapted to be secured to a first bodily part. A second body interface is adapted to be secured to a second bodily part separated from the first bodily part by a physiological joint. One or more joints provide one or more degrees of freedom between the first body interface and the second body interface. A magnetorheological (MR) fluid actuator unit comprises one or more power sources. An MR fluid clutch apparatus receiving torque from the at least one power source, the at least one MR fluid clutch apparatus operable to generate a variable amount of torque transmission when subjected to a magnetic field. A transmission couples the MR fluid actuator unit to the wearable device for converting torque from the MR fluid actuator unit to relative movement of the body interfaces with respect to one another.

IPC Classes  ?

• A61F 2/68 - Operating or control means
• A61F 2/50 - Prostheses not implantable in the body
• A61F 2/54 - Artificial arms or hands or parts thereof
• A61F 2/60 - Artificial legs or feet or parts thereof
• A61F 5/01 - Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
• A61H 3/00 - Appliances for aiding patients or disabled persons to walk about

Abstract

An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

IPC Classes  ?

• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• B60G 21/055 - Stabiliser bars
• F16D 47/06 - Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the following sets of groups: of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
• 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
• B60N 2/50 - Seat suspension devices
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• B60G 99/00 - Subject matter not provided for in other groups of this subclass

Abstract

A system for assisting a user in strength training with a strength training device comprises a torque source. One or more magnetorheological (MR) fluid clutch apparatuses has an input coupled to torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation inter face couples the output of the at least one MR fluid clutch apparatus to a force transmission of the training device. One or more sensors provide information indicative of a training action by the user. A training processor comprises a training effort calculator module for receiving the information indicative of the training action and for characterizing the training action, a training assistance controller module for determining a level of force assistance from the characterizing of the training action, and an assistance generator module for controlling the at least one MR fluid clutch apparatus in exerting the force assistance at said level on the force transmission of the training device to assist the user in the training action. A method for assisting a user in strength training with a MR fluid clutch apparatus is also provided.

IPC Classes  ?

• A63B 21/008 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
• A63B 21/00 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
• A63B 21/005 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
• A63B 22/02 - Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands
• A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer

Abstract

A braking control apparatus comprises at least one torque source. At least one magnetorheological (MR) fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation interface couples the output of the at least one MR fluid clutch apparatus to a braking power transmission of a brake system. At least one sensor provides information indicative of a braking state of the load. A processing unit receives the information indicative of the braking state of the load and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the braking power transmission to assist in braking the load. A method for assisting a manually-actuated braking of a vehicle is also provided.

IPC Classes  ?

• F16D 57/00 - Liquid-resistance brakesAir-resistance brakes
• F16D 67/04 - Clutch-brake combinations fluid actuated
• F16D 66/00 - Arrangements for monitoring working conditions of brakes, e.g. wear or temperature
• F16H 19/04 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising a rack

Abstract

A magnetorheological fluid clutch apparatus comprises a stator having at least an annular wall; a first rotor rotatably mounted to the stator, the first rotor having at least one first shear surface; a second rotor rotatably mounted to the stator for rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space. A magnetorheological (MR) fluid is in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field. An inner magnetic core and an outer magnetic core with an annular cavity therebetween receive the annular wall of the stator, the inner magnetic core and the outer magnetic core connected to at least one of the rotors to rotate therewith so as to be rotatably mounted to the stator. Outer and inner fluid gaps are between the inner magnetic core and the annular wall, and between the outer magnetic core and the annular wall, the outer and inner fluid gaps filled with at least one fluid. At least one coil is supported by the annular wall and actuatable to deliver a magnetic field through the MR fluid, the magnetic field following a path comprising the annular wall, the outer fluid gap, the outer magnetic core, the at least one first shear surface and the at least one second shear surface, the inner magnetic core and the inner fluid gap, wherein one of the rotors is adapted to be coupled to a power input and the other of the rotors is adapted to be connected to an output whereby actuation of the at least one coil results in a variation of torque transmission between the rotors.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation
• B64C 27/59 - Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive

Abstract

A system comprises magnetorheological fluid clutch apparatuses, each magnetorheological fluid clutch apparatus including a first rotor having at least one first shear surface, a second rotor rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space, magnetorheological (MR) fluid in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field, and coil(s) actuatable to deliver a magnetic field through the MR fluid such that each said magnetorheological fluid clutch apparatus is actuatable to selectively transmit actuation by controlled slippage of the rotors with respect to one another. The MR fluid chambers of the second magnetorheological fluid clutch apparatuses are in fluid communication for the MR fluid to circulate between the magnetorheological fluid clutch apparatuses.

IPC Classes  ?

• F16H 15/01 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members
• F16D 27/12 - Clutch systems with a plurality of electromagnetically-actuated clutches
• F16D 35/00 - Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A system comprises magnetorheological fluid clutch apparatuses, each magnetorheological fluid clutch apparatus in¬ cluding a first rotor having at least one first shear surface, a second rotor rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space, magnetorheological (MR) fluid in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field, and coil(s) actuatable to deliver a magnetic field through the MR fluid such that each said magnetorheological fluid clutch apparatus is actuatable to selectively transmit actuation by controlled slippage of the rotors with respect to one another. The MR fluid chambers of the second magnetorheological fluid clutch apparatuses are in fluid communication for the MR fluid to circulate between the magnetorheological fluid clutch apparatuses.

IPC Classes  ?

• F16D 27/12 - Clutch systems with a plurality of electromagnetically-actuated clutches
• F16D 35/00 - Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16H 15/01 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members characterised by the use of a magnetisable powder or liquid as friction medium between the rotary members

Abstract

An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

IPC Classes  ?

• B60N 2/50 - Seat suspension devices
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• B60G 99/00 - Subject matter not provided for in other groups of this subclass
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• 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 2/16 - 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 height-adjustable
• 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 21/055 - Stabiliser bars
• F16D 47/06 - Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the following sets of groups: of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
• F16D 37/00 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive

Abstract

A telepresence controller is provided for interaction with a remote telepresence session to control haptic interactions between an end effector and the remote telepresence session. Force sensor (s) monitor force (s) applied to an end effector. Position sensor (s) monitor a position of the end effector. The telepresence controller communicates with the remote telepresence session to exchange position data and force data indicative of concurrent haptic movements of the end effector and an object in the remote telepresence session. Magnetorheological fluid clutch apparatus (es ) have an input adapted to be connected to a power source and configured to receive a degree of actuation (DOA) therefrom, the magnetorheological fluid clutch apparatus ( es ) having an output being actuatable to selectively transmit the received DOA to the end effector by controlled slippage. A force controller module determines a force input required on the end effector as a function of haptic events for the object in the remote telepresence session. A clutch driver module drives the magnetorheological fluid clutch apparatus with the controlled slippage being as a function of the force input.

IPC Classes  ?

• A61B 34/35 - Surgical robots for telesurgery
• A61B 34/37 - Leader-follower robots
• B25J 3/00 - Manipulators of leader-follower type, i.e. both controlling unit and controlled unit perform corresponding spatial movements
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• B25J 9/18 - Programme controls electric
• B25J 19/02 - Sensing devices

Abstract

A telepresence controller is provided for interaction with a remote telepresence session to control haptic interactions between an end effector and the remote telepresence session. Force sensor (s) monitor force (s) applied to an end effector. Position sensor (s) monitor a position of the end effector. The telepresence controller communicates with the remote telepresence session to exchange position data and force data indicative of concurrent haptic movements of the end effector and an object in the remote telepresence session. Magnetorheological fluid clutch apparatus (es ) have an input adapted to be connected to a power source and configured to receive a degree of actuation (DOA) therefrom, the magnetorheological fluid clutch apparatus ( es ) having an output being actuatable to selectively transmit the received DOA to the end effector by controlled slippage. A force controller module determines a force input required on the end effector as a function of haptic events for the object in the remote telepresence session. A clutch driver module drives the magnetorheological fluid clutch apparatus with the controlled slippage being as a function of the force input.

IPC Classes  ?

• A61B 34/35 - Surgical robots for telesurgery
• A61B 34/37 - Leader-follower robots
• B25J 19/02 - Sensing devices
• B25J 3/00 - Manipulators of leader-follower type, i.e. both controlling unit and controlled unit perform corresponding spatial movements
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• B25J 9/18 - Programme controls electric

Abstract

A control system and method control movements of an end effector connected to an output of magnetorheological (MR) fluid clutch apparatus(es). A clutch driver drives the MR fluid clutch apparatus(es) between a controlled slippage mode, in which slippage of the MR fluid clutch apparatus(es) varies, and a lock mode, in which said slippage is maintained below a given threshold. A motor driver controls a motor output coupled to a clutch input. A mode selector module receive signals representative of a movement parameter(s) of the end effector, and selects a mode between the controlled slippage mode and the lock mode based on the signals, and switches the selected mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on the selected mode and/or on commanded movements of the end effector for the end effector to achieve the commanded movements.

IPC Classes  ?

• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
• F16D 27/10 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure

Abstract

A control system is provided for controlling movements of an end effector connected to a clutch output of at least one magnetorheological (MR) fluid clutch apparatus. A clutch driver is configured to drive the at least one MR fluid clutch apparatus between a controlled slippage mode, in which slippage between a clutch input and the clutch output of the MR fluid clutch apparatus varies, and a lock mode, in which said slippage between the clutch input and the clutch output is maintained below a given threshold, the clutch output transmitting movement to the end effector. A motor driver is configured to control a motor output of at least one motor, the motor output coupled to the clutch input. A mode selector module is configured to receive signals representative of at least one movement parameter of the end effector, the mode selector module selecting a mode between the controlled slippage mode and the lock mode of the clutch driver based on the signals, and switching the selected mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on at least one of the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements. A method for controlling movements of an end effector connected to the MR fluid clutch apparatus is also provided.

IPC Classes  ?

• F16D 27/10 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
• F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type

Abstract

A system for assisting a user in moving a device relative to a structure comprises a magnetorheological (MR) fluid actuator unit including at least one torque source and at least one MR fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of assistance force via an output thereof. An interface is configured for coupling the output of the at least one MR fluid clutch apparatus to the device or surrounding structure. At least one sensor provides information about a movement of the device. A processor unit for controlling the at least one MR fluid clutch apparatus in exerting the variable amount of assistance force as a function of said information, wherein the system is configured for one of the MR fluid actuator unit and the interface to be coupled to the structure, and for the other of the MR fluid actuator unit and the interface to be coupled to the device for the assistance force from the MR fluid actuator unit to assist in moving the device.

IPC Classes  ?

• B60J 5/04 - Doors arranged at the vehicle sides
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
• B60W 20/40 - Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
• B62B 5/00 - Accessories or details specially adapted for hand carts
• B62M 6/40 - Rider propelled cycles with auxiliary electric motor
• B62M 6/55 - Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
• B62M 19/00 - Transmissions characterised by use of non-mechanical gearing, e.g. fluid gearing
• E05F 1/00 - Closers or openers for wings, not otherwise provided for in this subclass
• E05F 15/60 - Power-operated mechanisms for wings using electrical actuators
• E05F 15/697 - Motor units therefor, e.g. geared motors
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation

Abstract

A system for assisting a user in moving a device relative to a structure comprises a magnetorheological (MR) fluid actuator unit including at least one torque source and at least one MR fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of assistance force via an output thereof. An interface is configured for coupling the output of the at least one MR fluid clutch apparatus to the device or surrounding structure. At least one sensor provides information about a movement of the device. A processor unit for controlling the at least one MR fluid clutch apparatus in exerting the variable amount of assistance force as a function of said information, wherein the system is configured for one of the MR fluid actuator unit and the interface to be coupled to the structure, and for the other of the MR fluid actuator unit and the interface to be coupled to the device for the assistance force from the MR fluid actuator unit to assist in moving the device.

IPC Classes  ?

• B60L 9/00 - Electric propulsion with power supply external to the vehicle
• B62M 6/40 - Rider propelled cycles with auxiliary electric motor
• B62M 6/55 - Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
• B62M 19/00 - Transmissions characterised by use of non-mechanical gearing, e.g. fluid gearing

Abstract

A system for assisting a user in moving a device relative to a structure comprises a magnetorheological (MR) fluid actuator unit including at least one torque source and at least one MR fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the at least one torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of assistance force via an output thereof. An interface is configured for coupling the output of the at least one MR fluid clutch apparatus to the device or surrounding structure. At least one sensor provides information about a movement of the device. A processor unit for controlling the at least one MR fluid clutch apparatus in exerting the variable amount of assistance force as a function of said information, wherein the system is configured for one of the MR fluid actuator unit and the interface to be coupled to the structure, and for the other of the MR fluid actuator unit and the interface to be coupled to the device for the assistance force from the MR fluid actuator unit to assist in moving the device.

IPC Classes  ?

• E05F 15/60 - Power-operated mechanisms for wings using electrical actuators
• B60J 5/04 - Doors arranged at the vehicle sides
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
• B60W 20/40 - Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
• B62B 5/00 - Accessories or details specially adapted for hand carts
• B62M 6/40 - Rider propelled cycles with auxiliary electric motor
• E05F 1/00 - Closers or openers for wings, not otherwise provided for in this subclass
• E05F 15/697 - Motor units therefor, e.g. geared motors
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation

Abstract

A system for assisting a user in strength training with a strength training device comprises a torque source. One or more magnetorheological (MR) fluid clutch apparatuses has an input coupled to torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation interface couples the output of the at least one MR fluid clutch apparatus to a force transmission of the training device. One or more sensors provide information indicative of a training action by the user. A training processor comprises a training effort calculator module for receiving the information indicative of the training action and for characterizing the training action, a training assistance controller module for determining a level of force assistance from the characterizing of the training action, and an assistance generator module for controlling the at least one MR fluid clutch apparatus in exerting the force assistance at said level on the force transmission of the training device to assist the user in the training action. A method for assisting a user in strength training with a MR fluid clutch apparatus is also provided.

IPC Classes  ?

• A63B 21/06 - User-manipulated weights
• A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
• A63B 71/06 - Indicating or scoring devices for games or players

Abstract

A system for assisting a user in strength training with a strength training device comprises a torque source. One or more magnetorheological (MR) fluid clutch apparatuses has an input coupled to torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation interface couples the output of the at least one MR fluid clutch apparatus to a force transmission of the training device. One or more sensors provide information indicative of a training action by the user. A training processor comprises a training effort calculator module for receiving the information indicative of the training action and for characterizing the training action, a training assistance controller module for determining a level of force assistance from the characterizing of the training action, and an assistance generator module for controlling the at least one MR fluid clutch apparatus in exerting the force assistance at said level on the force transmission of the training device to assist the user in the training action. A method for assisting a user in strength training with a MR fluid clutch apparatus is also provided.

IPC Classes  ?

• A63B 21/06 - User-manipulated weights
• A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
• A63B 71/06 - Indicating or scoring devices for games or players

Abstract

A braking control apparatus comprises at least one torque source. At least one magnetorheological (MR) fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation interface couples the output of the at least one MR fluid clutch apparatus to a braking power transmission of a brake system. At least one sensor provides information indicative of a braking state of the load. A processing unit receives the information indicative of the braking state of the load and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the braking power transmission to assist in braking the load. A method for assisting a manually-actuated braking of a vehicle is also provided.

IPC Classes  ?

• F16D 63/00 - Brakes not otherwise provided forBrakes combining more than one of the types of groups
• F16D 65/14 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position
• F16D 67/02 - Clutch-brake combinations
• F16D 67/04 - Clutch-brake combinations fluid actuated

Abstract

A braking control apparatus comprises at least one torque source. At least one magnetorheological (MR) fluid clutch apparatus having an input coupled to the at least one torque source to receive torque from the torque source, the MR fluid clutch apparatus controllable to transmit a variable amount of torque via an output thereof. A modulation interface couples the output of the at least one MR fluid clutch apparatus to a braking power transmission of a brake system. At least one sensor provides information indicative of a braking state of the load. A processing unit receives the information indicative of the braking state of the load and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the braking power transmission to assist in braking the load. A method for assisting a manually-actuated braking of a vehicle is also provided.

IPC Classes  ?

• F16D 63/00 - Brakes not otherwise provided forBrakes combining more than one of the types of groups
• F16D 65/14 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position
• F16D 67/02 - Clutch-brake combinations
• F16D 67/04 - Clutch-brake combinations fluid actuated

Abstract

An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

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 17/018 - 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
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation

Abstract

An active suspension system comprises at least one biasing device configured to support a body from a structure, and at least one motor. A magnetorheological (MR) fluid clutch apparatus(es) is coupled to the at least one motor to receive torque from the motor, the MR fluid clutch apparatus controllable to transmit a variable amount of torque. A mechanism is between the at least one MR fluid clutch apparatus and the body to convert the torque received from the at least one MR fluid clutch apparatus into a force on the body. Sensor(s) provide information indicative of a state of the body or structure. A controller receives the information indicative of the state of the body or structure and for outputting a signal to control the at least one MR fluid clutch apparatus in exerting a desired force on the body to control movement of the body according to a desired movement behavior.

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 17/018 - 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
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation

Abstract

A magnetorheological fluid clutch apparatus comprises a stator having at least an annular wall; a first rotor rotatably mounted to the stator, the first rotor having at least one first shear surface; a second rotor rotatably mounted to the stator for rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space. A magnetorheological (MR) fluid is in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field. An inner magnetic core and an outer magnetic core with an annular cavity therebetween receive the annular wall of the stator, the inner magnetic core and the outer magnetic core connected to at least one of the rotors to rotate therewith so as to be rotatably mounted to the stator. Outer and inner fluid gaps are between the inner magnetic core and the annular wall, and between the outer magnetic core and the annular wall, the outer and inner fluid gaps filled with at least one fluid. At least one coil is supported by the annular wall and actuatable to deliver a magnetic field through the MR fluid, the magnetic field following a path comprising the annular wall, the outer fluid gap, the outer magnetic core, the at least one first shear surface and the at least one second shear surface,the inner magnetic core and the inner fluid gap, wherein one of the rotors is adapted to be coupled to a power input and the other of the rotors is adapted to be connected to an output whereby actuation of the at least one coil results in a variation of torque transmissionbetween the rotors.

IPC Classes  ?

• B64C 27/59 - Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation
• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable

Abstract

A magnetorheological fluid clutch apparatus comprises a stator having at least an annular wall; a first rotor rotatably mounted to the stator, the first rotor having at least one first shear surface; a second rotor rotatably mounted to the stator for rotating about a common axis with the first rotor, the second rotor having at least one second shear surface opposite the at least one first shear surface, the shear surfaces separated by at least one annular space. A magnetorheological (MR) fluid is in an MR fluid chamber including the at least one annular space, the MR fluid configured to generate a variable amount of torque transmission between the rotors when subjected to a magnetic field. An inner magnetic core and an outer magnetic core with an annular cavity therebetween receive the annular wall of the stator, the inner magnetic core and the outer magnetic core connected to at least one of the rotors to rotate therewith so as to be rotatably mounted to the stator. Outer and inner fluid gaps are between the inner magnetic core and the annular wall, and between the outer magnetic core and the annular wall, the outer and inner fluid gaps filled with at least one fluid. At least one coil is supported by the annular wall and actuatable to deliver a magnetic field through the MR fluid, the magnetic field following a path comprising the annular wall, the outer fluid gap, the outer magnetic core, the at least one first shear surface and the at least one second shear surface, the inner magnetic core and the inner fluid gap, wherein one of the rotors is adapted to be coupled to a power input and the other of the rotors is adapted to be connected to an output whereby actuation of the at least one coil results in a variation of torque transmission between the rotors.

IPC Classes  ?

• F16D 37/02 - Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
• B64C 27/59 - Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
• F16D 29/00 - Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation