A hybrid drive device including a rotary electric machine having a stator and a rotor, a transmission coupled to the rotary electric machine, a clutch that couples an engine and the rotary electric machine and that releases a connection of the two, and a case for housing the rotary electric machine and the clutch, the hybrid drive device including: a first transmitting shaft coupled to an output shaft of the engine; and a second transmitting shaft that transmits power from the rotor of the rotary electric machine to the transmission.

The motor cooling system circulates cooling oil for cooling a motor. A transmission is configured to change a rotation speed ratio of an output shaft with respect to an input shaft by changing a rotation speed of the motor. A transmission case has an output shaft case for housing the output shaft. The output shaft case is positioned forward of the motor and protrudes to a position below the motor. The motor cooling system has a cooling oil tank for storing the cooling oil and a cooling oil pipe which connects a cooling oil tank and the motor. The cooling oil tank is positioned behind the output shaft case and under the motor.

The motor cooling system circulates cooling oil for cooling a motor. A transmission is configured to change a rotation speed ratio of an output shaft with respect to an input shaft by changing a rotation speed of the motor. A transmission case has an output shaft case for housing the output shaft. The output shaft case is positioned forward of the motor and protrudes to a position below the motor. The motor cooling system has a cooling oil tank for storing the cooling oil and a cooling oil pipe which connects a cooling oil tank and the motor. The cooling oil tank is positioned behind the output shaft case and under the motor.

A vehicle drive device that includes a body case that accommodates at least the rotary electric machine; an inverter case joined to the body case; and an inverter case cover joined to the inverter case; wherein an inverter housing that accommodates the inverter device is formed in a space enclosed by at least the inverter case; wherein a connection terminal electrically connecting the rotary electric machine and the inverter device is disposed in the inverter housing; wherein the case outer wall is formed by a first outer wall, a second outer wall, and the inverter case cover, the first outer wall being an outer wall of the body case, the second outer wall being an outer wall of the inverter case; and wherein a supply port and a discharge port for liquid refrigerant for cooling the inverter device are formed on the second outer wall.

A vehicle drive device that includes a body case that accommodates at least the rotary electric machine; an inverter case joined to the body case; and an inverter case cover joined to the inverter case; wherein an inverter housing that accommodates the inverter device is formed in a space enclosed by at least the inverter case; wherein a connection terminal electrically connecting the rotary electric machine and the inverter device is disposed in the inverter housing; wherein the case outer wall is formed by a first outer wall, a second outer wall, and the inverter case cover, the first outer wall being an outer wall of the body case, the second outer wall being an outer wall of the inverter case; and wherein a supply port and a discharge port for liquid refrigerant for cooling the inverter device are formed on the second outer wall.

A power transmission device of a four-wheel drive electrically driven vehicle comprises a transverse engine that is supported on one right side surface of two side surfaces of the gear case, and a motor that is supported on the other left side surface of the two side surfaces of the gear case. The power transmission device includes a transfer case that is supported by a gear case and the distributes power from a power source between the left and right front wheels and the left and right rear wheels. The transfer case wraps around from the side surface to a rear surface of the gear case, as seen from above, and outputs power to the left and right rear wheels from the rear surface side of the gear case.

A power transmission device of a four-wheel drive electrically driven vehicle comprises a transverse engine that is supported on one right side surface of two side surfaces of the gear case, and a motor that is supported on the other left side surface of the two side surfaces of the gear case. The power transmission device includes a transfer case that is supported by a gear case and the distributes power from a power source between the left and right front wheels and the left and right rear wheels. The transfer case wraps around from the side surface to a rear surface of the gear case, as seen from above, and outputs power to the left and right rear wheels from the rear surface side of the gear case.

A vehicle drive device that includes a rotary electric machine that serves as a driving force source for wheels; a first rotation member coupled to a rotor of the rotary electric machine; and a fluid coupling that is disposed on an axial first side, which is one side in an axial direction with respect to the rotary electric machine, and that has a rotation housing.

A straddled vehicle, including a frame structure, a rear arm, a driving wheel rotatably supported by the rear arm, a power source unit, and a drive unit including a gear box, a drive motor and a control unit. The drive motor is arranged with an off-set toward a first direction from a center of the straddled vehicle, without overlapping the power source unit in a side view. The control unit is further in a second direction than the drive motor, and overlaps the drive motor, but does not overlap the power source unit, in the side view. The gear box is further in the second direction than the drive motor, and overlaps the drive motor in the side view. The gear box is also further in the first direction than the control unit, and overlaps with the control unit, but does not overlap the power source unit, in the side view.

A transmission with an integrated hybrid drive is provided that includes a transmission housing as well as a torque converter rotatably mounted within the transmission housing. The torque converter includes an outer shell configured to be drivingly connected to a crankshaft. An e-motor is integrated into the transmission and includes a stator connected to the transmission housing, a rotor connected to the outer shell, and a controller. An auxiliary drive unit is provided having a drive shaft that is driven by a connection to the torque converter outer shell. A rotor position sensor (RPS) is provided on the drive shaft that is configured to signal rotor position data to the controller. The drive shaft and RPS are offset relative to the axis of the rotor and torque converter, providing better space utilization.