A power transmission device for a hybrid vehicle may include: an engine part; a transfer part configured to transfer power of the engine part; a motor part configured to provide power to the transfer part, and driven when power is applied thereto; and a plurality of torsion damper parts disposed between the engine part and the motor part, and connected in series.

An apparatus includes a generator, a case, a first bearing configured to rotatably support a rotating shaft of the generator on a side of one end portion, and a second bearing configured to rotatably support the rotating shaft on a side of the other end portion. The case includes a first wall portion that forms an accommodation space, and a second wall portion that covers an end portion of the first wall portion. The first bearing is supported by the second wall portion. The rotating shaft includes an input portion on a side of the other end portion of the second bearing, and a transmission portion configured to transmit, to the second bearing, a thrust load of the rotating shaft acting from the other end portion toward the one end portion.

A transmission arrangement for a hybrid drive of a motor vehicle, in particular a utility vehicle. The transmission arrangement has a change-speed transmission (1), in particular a group transmission (1) with a drive output side (1b), a drive output flange (2) and a countershaft (VW). An add-on transmission (3) is arranged on the change-speed transmission (1) and has at least one electric machine (EM) and at least one gear ratio step (Ü1). The at least one electric machine (EM) is connected to the countershaft (VW) by way of the at least one gear ratio step (Ü1) and can be engaged as an additional electric drive.

A power transmission device for a hybrid vehicle may include: a cover part mounted on a vehicle body; two motor parts embedded in the cover part; two rotor parts mounted on the respective motor parts and rotated; a torsion damper part coupled to any one of the rotor parts, and connected to an engine part; a transfer part rotatably connected to the torsion damper part; a clutch part configured to selectively connect the other one of the rotor parts to the transfer part; and an output part connected to the clutch part, and configured to discharge power to a transmission.

A transmission assembly for a hybrid vehicle includes an internal combustion engine and an electric machine, wherein a first drive torque of the internal combustion engine and a second drive torque of the electric machine are transferable to a drive shaft of the hybrid vehicle via the transmission assembly, wherein the transmission assembly comprises: a first transmission input shaft, via which the first drive torque 1 of the internal combustion engine is introduced into the transmission assembly; a second transmission input shaft, via which the second drive torque of the electric machine is introduced into the transmission assembly; the drive shaft; and at least a first planetary transmission including a first ring gear, a first planetary carrier and a first sun gear;
wherein the first transmission input shaft is connected via the first planetary transmission to the second transmission input shaft and to the drive shaft.

A hybrid power train structure for off-road vehicles (ATVs, UTVs and SSVs) uses an internal combustion engine (ICE) rotating a crankshaft through a continuously variable transmission (CVT) as a primary source of locomotion torque, but also includes a driving/generator motor which, in certain established conditions, can either provide an additional or alternative source of locomotion torque or can harvest electricity from the torque created by the internal combustion engine. The driving/generator motor is an axial flux motor of small size for its relative torque output, which can either be directly coupled to the CVT output shaft or, when additionally used as a starter motor for the ICE in an automatic ICE starting and stopping routine.

A control device for a hybrid vehicle, wherein when starting an engine using a first battery, if the residual capacity of the first battery is not enough to start the engine because of the reduced-voltage of the first battery, the engine is started by driving an ACG starter supplied with electricity from a second battery having a voltage rated value different from that of the first battery.

A caster wheel assembly includes a vertical axis brake and barrier-traversing member. The caster shaft housing contains a stator surface adjacent the caster wheel assembly. The barrier-traversing member with barrier contact surface is biasedly fastened to the caster wheel assembly. A brake pad member is attached to the barrier-traversing member opposite the barrier contact surface and adjacent the stator surface. In operation, the moving caster wheel assembly first contacts an obstacle with the barrier contact surface of the barrier-traversing member. The encountered obstacle elevates the barrier-traversing member and attached brake pad member into contact with the stator surface of the caster shaft housing, thereby restraining rotation of the caster wheel assembly. Then, further forward movement of the rotation-restrained caster wheel assembly allows the barrier-traversing member to elevate the caster wheel, transfer load to the caster wheel, and thereby more easily traverse the obstacle.

A hydrostatic drive includes a hydraulic machine, a hydraulic adjusting device, a high-pressure accumulator, an accumulator-closing valve, and an electronic control unit. The hydraulic machine has a swept volume that is adjustable via the hydraulic adjusting device from a maximum positive swept volume to a maximum negative swept volume via a zero swept volume. The hydraulic machine is operated as a pump with positive swept volume and as a motor with negative swept volume. The high-pressure accumulator supplies the hydraulic machine with pressure medium for operation as a motor via a pressure line. The accumulator-closing valve has a first position and a second position and is arranged in the pressure line. A fluidic connection from the high-pressure accumulator to the hydraulic machine is open in the first position and closed in the second position. The accumulator-closing valve is actuated in accordance with signals from the electronic control unit.

A hybrid vehicle includes an engine compartment, and a drivetrain which includes a hybrid drive having a combustion engine and an electric motor arranged in side-by-side and axis-parallel relation in the engine compartment, when installed. A differential gear includes a gear shaft in driving connection with an motor shaft of the combustion engine, and a front-axle differential includes a differential pinion shaft. The electric motor is integrated in the drivetrain by drivingly connecting the electric motor via the differential pinion shaft, or by drivingly connecting the electric motor via a flywheel/clutch assembly.