A method of controlling a drive train comprising an electric motor (12), a gearbox (1) and an internal combustion engine (13). The gearbox (1) is placed between the electric motor (12) and the internal combustion engine (13) in the drive train. The speed of the electric motor (12) is synchronized to the speed of the internal combustion engine (13) in order to shift the gearbox. The gearbox (1) is shifted between different operation modes by means of controlling the position of a dog clutch (6).
F16H 57/04 - Features relating to lubrication or cooling
F16H 57/05 - Features relating to lubrication or cooling of chains
B60K 6/26 - 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
B60K 6/365 - 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
B60K 6/547 - Transmission for changing ratio the transmission being a stepped gearing
B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
B60W 10/06 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
B60W 10/115 - Stepped gearings with planetary gears
B60W 20/40 - Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
F16H 3/54 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
A gearbox (1) is placed in a drive train between an electric motor (12) and an engine (13) of a vehicle. The gearbox (1) is placed in direct connection to an output shaft (2) of the electric motor (12). The gear box (1) has means to place it in three different modes.
F02B 67/04 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
F16H 63/06 - Final output mechanisms thereforActuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
F16H 63/18 - Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism the final actuating mechanism comprising cams
B60K 6/365 - 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
B60K 6/547 - Transmission for changing ratio the transmission being a stepped gearing
F16H 3/54 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
F16H 63/30 - Constructional features of the final output mechanisms
A torque vectoring device for a vehicle is provided, comprising an electrical motor (110) being connected to a differential mechanism (20) via a transmission (120), wherein the torque vectoring device further comprises at least one control means (130, 150) for changing the torque path of the transmission (120) between a first mode, in which the transmission connects the electrical motor (110) to the input shaft of the differential mechanism (20) for hybrid drive mode, and a second mode, in which the transmission connects the electrical motor (110) to the output shaft of the differential mechanism (20) for torque vectoring mode.
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 17/346 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
B60K 6/52 - Driving a plurality of drive axles, e.g. four-wheel drive
F16H 37/08 - 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 with differential gearing
A dog clutch is provided. The dog clutch comprises a sensor system (20) configured to detect both rotational speed and axial position of said axially moveable sleeve (9) by measuring characteristics (12) of the axially moveable sleeve (9).
A lubrication arrangement for a bevel gear unit, such as a final drive (10-19) or a power takeoff unit (PTU), in the drive line of a vehicle has an external oil reservoir (25) on the unit to be lubricated. From this reservoir oil channels (27, 28) in the housing (11) of the unit lead to areas in the unit in special need of oil supply, such as to pinion bearings (16, 17) and to the area of gear engagement between pinion (10) and crown wheel (12). There is also a return channel (30) in the housing (11) of the unit for returning oil thrown out by the crown wheel (12) against the inside of the housing to the reservoir (25).
A disconnected, hydraulic disc coupling (4) in an AWD vehicle with a hydraulic cylinder (14) for its actuation is to be quickly connected or engaged. The effective piston area in the cylinder (14) is for that reason reduced during the connection phase.
A shut-off valve for shutting-off a supply at will, wherein the shut-off valve comprises an axially movable valve slide, provided with a transverse valve flange for cooperation with a fixed valve seat, the slide being aetuatable in a closing direction by spring force and in an opening direction by a hydraulically operated ball, having an actuation end position in a sealing ball seat.
F16K 31/12 - Operating meansReleasing devices actuated by fluid
F16D 25/12 - Details not specific to one of the before-mentioned types
F16D 25/0638 - Fluid-actuated clutches in which the fluid actuates a piston incorporated in the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
A vehicle driveline system (100) is provided comprising a differential (120) having an input (102), a front output (106) connecting to a front axle (12) and a rear output (104) connecting to a rear axle (14). The vehicle driveline system (100) further comprises an actuator (130) which is configured to control the operation of the differential (120) between a first mode, in which the front output (106) is disconnected from the input (102), and a second mode, in which the front output (106) is connected to the input (102).
B60K 17/346 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
A torque vectoring device for a vehicle is provided, comprising an electrical motor (110) being connected to a differential mechanism (20) via a transmission (120), wherein the torque vectoring device further comprises at least one control means (130, 150) for changing the torque path of the transmission (120) between a first mode, in which the transmission connects the electrical motor (110) to the input shaft of the differential mechanism (20) for hybrid drive mode, and a second mode, in which the transmission connects the electrical motor (110) to the output shaft of the differential mechanism (20) for torque vectoring mode.
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 17/346 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices
B60K 1/00 - Arrangement or mounting of electrical propulsion units
A coupling for connecting a driven axle with a non-driven axle is provided. The coupling comprises a disc coupling and a piston for actuating the disc coupling, wherein the coupling further comprising a lock mechanism being configured to permanently apply a pressure to the piston of the disc coupling when actuated, wherein lock mechanism actuation is provided by applying a pressure impact to the lock mechanism.
F16D 25/0638 - Fluid-actuated clutches in which the fluid actuates a piston incorporated in the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
F16D 25/12 - Details not specific to one of the before-mentioned types
A torque vectoring device for directing torque at will to the two wheels of a wheel axle on a road vehicle has two sun gears (17, 18), which are connected – directly or indirectly – to each of two coaxial wheel half-axles (16), are coaxial, have the same diameter, and are provided with the same number of teeth on their circumferences. Coaxial planetary gear sets (19, 20) each have two planetary gears (19, 20) and are rotatably arranged in a fixed planetary carrier (22), the two planetary gears in each set having different numbers of teeth in engagement with the teeth of the sun gears (17, 18). A limited slip coupling (24) for connecting at will the two planetary gears (18, 19) in each planetary gear set is provided on a common planetary gear shaft (21).
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
B60W 10/16 - Axle differentials, e.g. for dividing torque between the left and right wheels
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
12.
AN ACTUATOR FOR A DOG CLUTCH AND A METHOD FOR ITS CONTROL
An actuator for connecting and disconnecting a dog clutch between two coaxial shafts (1, 2) by means of an axially movable clutch sleeve (3) comprises an electric motor. A motor shaft (8) of the motor is connected to a rotatable actuator rod (7). This rod (7) is provided at its end with an eccentric pin (5) for such cooperation with the clutch sleeve (3) that a rotation of the actuator rod (7) 180° or less by means of the motor from a rotational position corresponding to one axial end position of the clutch sleeve (3) to a rotational position corresponding to the other axial end position of the clutch sleeve (3) leads to a connection or disconnection of the dog clutch.
A hydraulic system is provided, comprising a hydraulically actuated clutch, a hydraulically actuated shifting piston, and a pressure source for actuating the clutch as well as the shifting piston. The movement of the shifting piston also controls a valve function which serves to open a connection from the pressure source to the clutch only when the shifting piston has reached one of its end positions.
A hydraulic pump assembly for a vehicle is provided, comprising an electrical motor, a hydraulic pump driven by the electrical motor, and a centrifugal regulator connected with a pressure overflow valve connected to the oil outlet of the hydraulic pump, characterized in that the pump assembly further comprises at least two input check valves and at least two output check valves arranged such that a first pressure outlet port is formed when the motor is rotating in a first direction, and a second pressure outlet port is formed when the motor is rotating in an opposite direction.
F04B 1/12 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
F04B 1/18 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having self-acting distribution members, i.e. actuated by working fluid
F04B 1/34 - Control not provided for in groups , , or
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
A method for an all wheel drive vehicle driveline having a set of disconnect parts being disconnected from a set of driving parts when the vehicle is operated in two wheel drive mode is provided. The method comprises the steps of i) detecting a deceleration of the vehicle, ii) during said deceleration accelerating the set of disconnect parts, and iii) releasing said set of disconnect parts.
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
B60W 10/02 - Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
A lubrication arrangement for a bevel gear unit, such as a final drive (10-19) or a power takeoff unit (PTU), in the drive line of a vehicle has an external oil reservoir (25) on the unit to be lubricated. From this reservoir oil channels (27, 28) in the housing (11) of the unit lead to areas in the unit in special need of oil supply, such as to pinion bearings (16, 17) and to the area of gear engagement between pinion (10) and crown wheel (12). There is also a return channel (30) in the housing (11) of the unit for returning oil thrown out by the crown wheel (12) against the inside of the housing to the reservoir (25).
A final drive for a road vehicle comprises a pinion gear (10) on a pinion axle (4), the pinion gear being in gear engagement with a crown gear (12) journaled for rotation transversely to the pinion axle (4). It is combined with an all wheel drive (A WD) coupling, comprising a disc package (2) axially controlled by a hydraulic piston (5) for optionally transmitting torque from an ingoing axle (3) to the pinion axle (4) as well as a disc drum (2A) or similar means for rotatably connecting the disc package (2) to the pinion axle. An axial stop (9, 9') is arranged on the pinion axle (4) for transferring axial forces from the disc drum (2A) to the pinion axle.
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
A final drive for a road vehicle comprises a pinion gear (10) on a pinion axle (4) journaled in a housing (11), the pinion gear being in gear engagement with a crown gear (12) journaled for rotation transversely to the pinion axle (4). The final drive is combined with an all wheel drive (AWD) coupling, comprising a disc package (2) axially controlled by a hydraulic piston (5) for optionally transmitting torque from an ingoing axle (3) to the pinion axle (4) as well as a disc drum (2A) or similar means for rotatably connecting the disc package (2) to the pinion axle. The ingoing axle (3) of the AWD coupling is radially journaled only by the pinion axle (4) in the final drive.
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
A hydraulic wet disc coupling for a vehicle is provided. The disc coupling comprises a set of inner discs rotationally connected to a first axle, a set of outer discs rotationally connected to a second axle, and an actuator configured to arrange the sets of discs in a connected mode, whereby torque is transmitted from the first axle to the second axle, as well as in a disconnected mode in which the set of inner discs is separated from the set of outer discs, wherein at least one disc of the set of inner or outer discs is provided with a spring for biasing the disc away from an adjacent disc.
A coupling for an AWD vehicle comprises a disc package with alternate discs (6,7; 56, 57; 76, 77), which are connected for rotation with, but are axially movable in relation to an ingoing (1; 52, 71) and an outgoing axle (2; 51; 72), respectively, of the coupling, and a hydraulic piston (9; 59; 79) for pressing the disc package together under the action of hydraulic pressure, hereby establishing a connect mode, in which the ingoing axle is connected to the outgoing axle. A coupling slack adjuster (13-15; 64, 65; 83-85) is provided for mechanically establishing a rest position for the hydraulic piston (9; 59; 79) in a disconnect mode, in which a predetermined slack in the disc package is established, irrespective of the wear of the discs.
F16D 25/0638 - Fluid-actuated clutches in which the fluid actuates a piston incorporated in the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
F16D 25/12 - Details not specific to one of the before-mentioned types
21.
A VEHICLE SYSTEM, AND A METHOD FOR SUCH VEHICLE SYSTEM
A vehicle system (10) is provided. The vehicle system comprises an electrical DC motor (11) driving a load (12), such as a hydraulic pump, and a control system (100) for controlling the speed of the electrical motor (11). The control system (100) comprises a system (20) for monitoring and controlling the speed of the electric DC motor in view of a reference commutation signal (SR), wherein the electrical DC motor is associated with a drive current signal (ID), and wherein the drive current signal (ID) comprises information relating to the commutation signal of the electrical DC motor. The system (20) comprises a speed estimation unit (23) for estimating a commutation signal (SE) from the drive current signal (ID), said commutation signal (SE) corresponding to an estimated motor speed; a filter unit (25) configured to apply a first filter on the drive current signal (ID), said first filter being selected based on the estimated commutation signal (SE), thereby resulting in a filtered drive current signal, and a speed detector unit (26) for detecting the actual commutation signal (SM) from the filtered drive current signal. If the detection of the commutation signal (SM) is unsuccessful the speed estimation unit (23) is based upon the receipt of a signal (SM-NO) from the speed detector unit (26) configured to transmit an estimated commutation signal (SE) to a control unit (28), wherein the control unit (28) is configured to provide a control signal comprising information of a comparison between the reference commutation signal (SR) and the estimated commutation signal (SE) and indicating a required updated drive signal (ID).
A vehicle drive axle arrangement comprises an electric drive motor (1, 3), a left shaft (20) and a right shaft (23), coaxial with each other, in drive connection with the motor (1, 3), and intended for connection to respective driving half-axles of the vehicle in which the arrangement can be mounted, and a differential mechanism (6-19). The electric drive motor (1, 3) is coaxial with and arranged around the left shaft (20, 23), and the differential mechanism (6-19)—receiving rotary motion from the electric motor (1, 3)—comprises a reduction gearing (6, 7, 12, 13) and a planetary gearing (13-9), operatively connecting the two shafts (20-23).
In a hydraulic system with a dog clutch (23-25), a hydraulically operated dog clutch actuator is arranged to alternatively bring the dog clutch into a connect mode or a disconnect mode. The clutch actuator has a piston (27) reciprocally movable under hydraulic pressure between two end positions, corresponding to the two clutch modes. Pressurized hydraulic oil is supplied to the clutch actuator by a hydraulic power system comprising a pump (4) driven by an electric motor (3). Means are provided in the clutch actuator to decrease the hydraulic pressure acting on the piston (27) at the approaching by the piston of either of its end positions, so that a hydraulic signal is transmitted back to the hydraulic power system.
A hydraulic pump assembly comprises a rotatable piston drum (20) with at least one centrifugal lever (23) pivotally attached thereto for radial movements between radial flanges (20') under the action of centrifugal force at rotation of the piston drum. The centrifugal lever (23) is arranged to control the position of a valve member, preferably a ball (22), at the opening end of a bore (21) in the piston drum (20). There is a defined friction surface (28; 32) between the lever (23) and one of the radial flanges (20'), and there are spring means (29-31; 25, 33) for resiliently biasing the lever against said one of the flanges.
F04B 1/20 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
B60W 10/119 - Conjoint control of vehicle sub-units of different type or different function including control of all-wheel-driveline-means, e.g. transfer gears or clutches for dividing torque between front and rear axles
F04B 1/30 - Control of machines or pumps with rotary cylinder blocks
F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
In a driveline in a front wheel drive vehicle the distribution of drive torque to the drive wheels (1) via a differential (6) is controlled by means of a differential brake with a hydraulically controlled limited slip clutch (7). A low preparatory hydraulic pressure is applied to the clutch at the occurrence of any one of certain predetermined driving situations for decreasing the response time for the clutch.
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
F16H 48/32 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using fluid pressure actuators
F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices
26.
A METHOD FOR OPERATING A HYDRAULIC DISC COUPLING IN AN AWD VEHICLE AND A COUPLING THEREFORE
A disconnected, hydraulic disc coupling (4) in an AWD vehicle with a hydraulic cylinder (14) for its actuation is to be quickly connected or engaged. The effective piston area in the cylinder (14) is for that reason reduced during the connection phase.
A hydraulic disc coupling (4) for an AWD vehicle has means for supplying cooling and lubricating oil to the disc package (12) of the coupling, said means including a shut-off valve (32) for shutting-off said supply at will. The shut-off valve (32) comprises an axially movable valve slide (42), provided with a transverse valve flange (44) for cooperation with a valve seat (45) in the coupling housing, the slide being actuatable in a closing direction by spring force and in an opening direction by a hydraulically operated ball (47), having an actuation end position in a sealing ball seat (51).
F16D 25/0638 - Fluid-actuated clutches in which the fluid actuates a piston incorporated in the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
F16D 25/12 - Details not specific to one of the before-mentioned types
A device for torque vectoring in a wheeled vehicle is presented. The device includes a differential mechanism arranged on an axle having a first drive shaft and a second drive shaft, an electrical power source connected to an electrical motor, the electrical motor being connectable to the axle for torque vectoring between the first drive shaft and the second drive shaft, and control means connected to the power source and configured to receive a plurality of variables representing the current vehicle state and to determine drive currents being dependent on the variables, wherein the drive currents are supplied to the electrical motor from the power source for introducing a torque increase to either one of the first or second drive shafts and a corresponding torque decrease to the other one of the first or second drive shafts.
B60W 10/16 - Axle differentials, e.g. for dividing torque between the left and right wheels
F16H 48/30 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
An electrical axle for a four wheeled road vehicle with an electrical propulsion motor arranged coaxially on the axle. A first planetary gear is connected to the electrical propulsion motor and to a first side of the axle. A second planetary gear is connected to the electrical propulsion motor and to a second side of the axle. The first and second planetary gears form a differential mechanism. A torque vectoring unit includes an electrical motor arranged coaxially on the axle for providing a change in torque distribution between the first side and the second side of the axle. The electrical motor of the torque vectoring unit is connected to the first and second planetary gears.
B60K 6/445 - Differential gearing distribution type
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
B60W 10/16 - Axle differentials, e.g. for dividing torque between the left and right wheels
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 6/52 - Driving a plurality of drive axles, e.g. four-wheel drive
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
B60K 1/00 - Arrangement or mounting of electrical propulsion units
30.
Method for controlling the yaw moment of a vehicle
A method for determining the yaw tendency of a vehicle is hereby presented. The method comprises the steps of determining the propulsion states of one or several wheels of said vehicle, and estimating yaw moment variations of a vehicle from said propulsion states, wherein said yaw moment variations are induced from altered propulsion states between at least two of the wheels of said vehicle.
An electrical axle for a four wheeled road vehicle is provided. The electrical axle comprises an electrical propulsion motor (110) arranged coaxially on said axle (100), a differential mechanism (120) being connected to said electrical propulsion motor for driving two wheels arranged on a first side (160) and a second side (162) of said electrical axle (100), and an electrical torque vectoring motor (132) arranged coaxially on said axle (100) and connected to said fist side (160) and second side (162) for providing a change in torque distribution between said first side (160) and said second side (162) of said axle (100), wherein the diameter of the torque vectoring motor (132) is less than the diameter of the electrical propulsion motor (110).
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 6/52 - Driving a plurality of drive axles, e.g. four-wheel drive
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
A torque vectoring device (4-18) for two half-axles of a vehicle drive axle, provided with a conventional differential (20-27), through which drive torque is supplied from a propulsion motor, is connected on one hand to one of the half-axles (1), on the other hand to the cage (24) of the differential (20-27). An electric motor (15) of the torque vectoring device is connected via a differential transmission in the form of a planetary gearing (10) to said one of the half-axles (1) and the cage (24). The arrangement is such that the electric motor stands still, when the rotational speed of the half-axle (1) and the cage (24) is the same.
An electric motor (1; 2) in an electric drive motor assembly for use in a road vehicle has a phase connector, which extends from a motor compartment of the assembly through a housing wall into a terminal compartment (6; 8).A longitudinal contact piece (9; 14) extends in parallel with the axis of the motor (1; 2) surrounded by an insulator block (10; 16) through an opening in the housing wall and is provided with contact means (5, 11; 7, 17) at its two ends for connection of an external cable (12) and a phase conductor (3) of the motor (1; 2), respectively.
An electric drive axle arrangement for a road vehicle comprises an electric drive motor (1), a differential mechanism (3, 4) for allowing different velocities of drive wheels driven by the drive motor, and a torque vectoring system (2, 6, 7) for controlling the distribution of drive torque between the two drive wheels. A torque vectoring motor (2) of the torque vectoring system is of the non-permanent magnet motor type.
A vehicle drive axle arrangement comprises an electric drive motor (1, 3), a left shaft (20) and a right shaft (23), coaxial with each other, in drive connection with the motor (1, 3), and intended for connection to respective driving half-axles of the vehicle in which the arrangement can be mounted, and a differential mechanism (6-19). The electric drive motor (1, 3) is coaxial with and arranged around the left shaft (20, 23),and the differential mechanism (6-19) –receiving rotary motion from the electric motor (1, 3) –comprises a reduction gearing (6, 7, 12, 13) and a planetary gearing (13- 9), operatively connecting the two shafts (20-23).
In a driveline in a front wheel drive vehicle the distribution of drive torque to the drive wheels (1) via a differential (6) is controlled by means of a differential brake with a hydraulically controlled limited slip clutch (7). A low preparatory hydraulic pressure is applied to the clutch at the occurrence of any one of certain predetermined driving situations for decreasing the response time for the clutch.
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
A method for producing and/or designing a propulsion axle with an electrical motor arrangement (100) for an electrical four wheel road vehicle, said method comprising: receiving a requirement relating to propulsion axle performance; and selecting at least one component from a small set of key components; wherein said requirement comprises at least a torque requirement and/or a speed requirement and/or an output power requirement and wherein said selecting at least one component comprises selecting a planetary gear set (120) as a component to provide a gear ratio; selecting an electric motor (140) as a component; selecting a cooling system (130) as a component to enable said electrical motor to provide a required output power; and arranging said planetary gear set (120), said electric motor (140) and said cooling system (130) as an electrical motor arrangement module (100) in a propulsion axle, said module (100) being adapted to fulfill said requirement relating to axle performance with regards to said torque and/or said speed and/or said output power.
An electric motor has a gearbox enabling a modification of gear ratio between a main rotor of the motor and an output shaft. The gearbox is situated within a space delimited by the main rotor of the motor.
One embodiment may include a system for distributing torque between front and rear axles of an all wheel drive vehicle and/or between left and right wheels of a two or four wheel drive vehicle comprises at least one limited slip coupling having a disc package and a piston acting thereon, the piston being actuated by a hydraulic pump assembly. This assembly has an electric motor, a hydraulic pump driven thereby, and a centrifugal regulator also driven thereby, the centrifugal regulator controlling a pressure overflow valve, connected to the oil outlet of the hydraulic pump. The assembly specifically comprises an axial piston pump having a piston drum rotatable in a pump housing and containing a number of reciprocable axial pistons, at least one centrifugal lever pivotally attached to the piston drum, and a valve member connected to the centrifugal lever and being arranged for cooperation with the mouth of an oil outlet bore in the piston drum to form the pressure overflow valve.
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
40.
A METHOD FOR OPERATING A HYDRAULIC DISC COUPLING IN AN AWD VEHICLE AND A COUPLING HEREFORE
A hydraulic disc coupling (4) for an AWD vehicle is provided with an actuator pump (17) for actuating its disc package (12). There is a separate lubrication pump (30) for the purpose of both supplying lubricating and cooling oil to the disc package (12) at normal operating conditions and supporting the actuator pump (17) in quickly engaging the coupling (4) after its disconnection and possible emptying of lubricating and cooling oil.
F16D 25/0638 - Fluid-actuated clutches in which the fluid actuates a piston incorporated in the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
A torque vectoring device (4-18) for two half-axles of a vehicle drive axle, provided with a conventional differential (20-27), through which drive torque is supplied from a propulsion motor, is connected on one hand to one of the half-axles (1), on the other hand to the cage (24) of the differential (20-27). An electric motor (15) of the torque vectoring device is connected via a differential transmission in the form of a planetary gearing (10) to said one of the half-axles (1) and the cage (24). The arrangement is such that the electric motor stands still, when the rotational speed of the half-axle (1) and the cage (24) is the same.
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
An electrical axle (200, 300, 400) for a four wheeled road vehicle is provided, comprising an electrical propulsion motor (210, 310, 410) arranged coaxially on said axle (200, 300, 400), a first planetary gear (222a, 322a, 422a) connected to said electrical propulsion motor (210, 310, 410) and to a first side of said axle (200, 300, 400), and a second planetary gear (222b, 322b, 422b) connected to said electrical propulsion motor (210, 310, 410) and to a second side of said axle (200, 300, 400), said first and second planetary gears (222, 322, 422) is forming a differential mechanism (220, 320, 420), and a torque vectoring unit (240, 340, 440) comprising an electrical motor (242, 342, 442) arranged coaxially on said axle (200, 300, 400) for providing a change in torque distribution between said first side and said second side of said axle (200, 300, 400), wherein said electrical motor (242, 342, 442) of said torque vectoring unit (240, 340, 440) is connected to the first and second planetary gears (222, 322, 422).
A device for torque vectoring in a wheeled vehicle is presented. The device includes a differential mechanism arranged on an axle having a first drive shaft and a second drive shaft, an electrical power source connected to an electrical motor, the electrical motor being connectable to the axle for torque vectoring between the first drive shaft and the second drive shaft, and control means connected to the power source and configured to receive a plurality of variables representing the current vehicle state and to determine drive currents being dependent on the variables, wherein the drive currents are supplied to the electrical motor from the power source for introducing a torque increase to either one of the first or second drive shafts and a corresponding torque decrease to the other one of the first or second drive shafts.
A pump coupling or hydraulic actuator controlling one or more limited slip couplings of a distribution system for distribution torque between front and rear axles in all wheel drive vehicles and/or distribution of torque between left and right wheels in two or four wheel drive vehicles. The hydraulic actuator includes an electric motor, a hydraulic pump, driven by a drive shaft of the electric motor, and the one or more limited slip couplings. Each limited slip coupling includes a disc package and a piston acting on the disc package, which piston is actuated by a hydraulic pump. A centrifugal regulator is connected to a rotating part of the electric motor or the hydraulic pump, which centrifugal regulator controls a pressure overflow valve, connected to the oil outlet of the hydraulic pump. The pressure is controlled by current to the electric motor or by control of the motor speed.
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
45.
A METHOD FOR CONTROLLING THE YAW MOMENT OF A VEHICLE
A method for determining the yaw tendency of a vehicle is hereby presented. The method comprises the steps of determining the propulsion states of one or several wheels of said vehicle, and estimating yaw moment variations of a vehicle from said propulsion states, wherein said yaw moment variations are induced from altered propulsion states between at least two of the wheels of said vehicle.
B62D 6/00 - Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
B62D 6/04 - Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to forces disturbing the intended course of the vehicle, e.g. forces acting transversely to the direction of vehicle travel
A system for distributing torque between front and rear axles of an all wheel drive vehicle and/or between left and right wheels of a two or four wheel drive vehicle comprises at least one limited slip coupling (7) having a disc package (15) and a piston (13) acting thereon, the piston (13) being actuated by a hydraulic pump assembly. This assembly has an electric motor (16), a hydraulic pump (17) driven thereby, and a centrifugal regulator (19) also driven thereby, the centrifugal regulator (19) controlling a pressure overflow valve (20), connected to the oil outlet (23) of the hydraulic pump (17). The assembly specifically comprises an axial piston pump having a piston drum (30) rotatable in a pump housing (31) and containing a number of reciprocable axial pistons (35), at least one centrifugal lever (40) pivotally attached to the piston drum (30), and a valve member (44) connected to the centrifugal lever (40) and being arranged for cooperation with the mouth of an oil outlet bore (45) in the piston drum (30) to form the pressure overflow valve (20).
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
F04B 1/30 - Control of machines or pumps with rotary cylinder blocks
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
F16H 61/47 - Automatic regulation in accordance with output requirements for achieving a target output speed
G05G 15/06 - Mechanical devices for initiating a movement automatically due to a specific cause due to the speed of rotation or of bodily movement of a member, e.g. passing an upper or lower limit thereof
A device for torque vectoring in a wheeled vehicle is presented. The device comprises a differential mechanism (130, 220a, 220b, 320, 406) arranged on an axle (110, 210, 310, 402) having a first drive shaft (214, 314, 402L) and a second drive shaft (216, 316, 402R), an electrical power source (424) connected to an electrical motor (140, 230, 330, 410), said electrical motor (140, 230, 330, 410) being connectable to said axle (110, 210, 310, 402) for torque vectoring between said first drive shaft (214, 314, 402L) and said second drive shaft (216, 316, 402R), and control means (150, 420, 430, 440) connected to said power source (424) and configured to receive a plurality of variables (442, 444) representing the current vehicle state and to determine drive currents (412) being dependent on said variables (442, 444), wherein said drive currents (412) are supplied to said electrical motor (140, 230, 330, 410) from said power source (424) for introducing a torque increase to either one of said first or second drive shafts (214, 216, 314, 316, 402L, 402R) and a corresponding torque decrease to the other one of said first or second drive shafts (214, 216, 314, 316, 402L, 402R).
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
F16H 48/30 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
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