Abstract: A motor drive unit, in which an output end of a motor drive system using an electric motor as a power source and a rotator rotatably supported by a bearing unit are arranged side by side in an axial direction, and the output end of the motor drive system and the rotator are drivingly coupled in a relatively displaceable manner by a coupling member in which a plurality of couplers spaced apart in an axial direction are set. The bearing unit of the rotator is arranged such that a center of displacement of the rotator defined by the bearing unit is located between an arbitrary pair of couplers among the couplers.

Abstract: An in-wheel motor unit for a vehicle having a drive output shaft of a drive unit body and a wheel hub shaft supported by a hub bearing with respect to a case member of the drive unit body are connected via a displacement absorption mechanism. The displacement absorption mechanism comprises an output shaft side drive transmission fitting portion allowing a first inner tooth portion of the drive output shaft to mesh with a first outer tooth portion of a gear coupling shaft, and a hub shaft side drive transmission fitting portion allowing a second inner tooth portion of the wheel hub shaft to mesh with a second outer tooth portion of the gear coupling shaft, the second outer tooth portion being arranged axially in the vehicle exterior side with respect to a wheel mounting surface on which a tire wheel is mounted to the wheel hub.

Abstract: A motor drive unit, in which an output end of a motor drive system using an electric motor as a power source and a rotator rotatably supported by a bearing unit are arranged side by side in an axial direction, and the output end of the motor drive system and the rotator are drivingly coupled in a relatively displaceable manner by a coupling member in which a plurality of couplers spaced apart in an axial direction are set. The bearing unit of the rotator is arranged such that a center of displacement of the rotator defined by the bearing unit is located between an arbitrary pair of couplers among the couplers.

Abstract: A variable wheel positioning vehicle has a wheel position changing mechanism and a wheel position control device to change a wheel position of a wheel with respect to a center of gravity of a vehicle body. The wheel position changing mechanism is arranged to move a suspension device along a movement path with respect to the vehicle body and to hold the suspension device at any position along the movement path. The wheel position control device issues a movement command to the wheel position changing mechanism that changes a wheel positioning distance between a center rotation axis of one of the wheels and the center of gravity of the vehicle body as measured in a direction parallel to an acceleration direction of the center of gravity of the vehicle body based on a traveling condition the vehicle.

Abstract: In an exemplary embodiment, a transmission outputs power from two high-speed, high-powered motor/generators into two coaxial output shafts for left and right wheels of a vehicle. Embodiments of the invention provide for a transmission that is coaxially mounted with the output shafts and the two motor/generators, which allows for a space-saving design. The transmission provides at least two degrees of freedom such that torque to each of the left any right wheels of driveshaft can be separately controlled by controlling the input/output of each of the motor/generators. The transmission may include two differential units to allow a significant gear reduction such that motor/generators that require high output speeds may be used.

Abstract: A variable wheel positioning vehicle has a wheel position changing mechanism and a wheel position control device to change a wheel position of a wheel with respect to a center of gravity of a vehicle body. The wheel position changing mechanism is arranged to move a suspension device along a movement path with respect to the vehicle body and to hold the suspension device at any position along the movement path. The wheel position control device issues a movement command to the wheel position changing mechanism that changes a wheel positioning distance between a center rotation axis of one of the wheels and the center of gravity of the vehicle body as measured in a direction parallel to an acceleration direction of the center of gravity of the vehicle body based on a traveling condition the vehicle.

Abstract: In an exemplary embodiment, a transmission outputs power from two high-speed, high-powered motor/generators into two coaxial output shafts for left and right wheels of a vehicle. Embodiments of the invention provide for a transmission that is coaxially mounted with the output shafts and the two motor/generators, which allows for a space-saving design. The transmission provides at least two degrees of freedom such that torque to each of the left any right wheels of driveshaft can be separately controlled by controlling the input/output of each of the motor/generators. The transmission may include two differential units to allow a significant gear reduction such that motor/generators that require high output speeds may be used.