A drive apparatus includes a motor; a reduction gear connected to the motor; a differential connected to the reduction gear, for rotating an axle about a differential axis; a housing including a gear housing portion housing the reduction gear and the differential; and an oil housed in the gear housing portion. The differential includes a gear for rotating about the differential axis. An end portion of the gear is lower than the reduction gear, and is configured to soak in the oil. The housing includes an oil drain hole and an oil feed hole for joining an interior of the housing and a space outside of the housing, a first stopper member removably in the oil drain hole, and a second stopper member removably in the oil feed hole. Each of the oil drain hole and the oil feed hole is in a portion of the gear housing portion.

A drive device includes a motor, a housing, an oil passage in the housing, an oil pump in which a portion of the oil passage is provided, and a strainer inside the housing and in which a portion of the oil passage is provided. The oil passage includes an oil sump in which oil is accumulated and a suction path connecting the oil sump and the oil pump. A central axis of the oil pump extends in a direction intersecting the vertical direction. The strainer is in the suction path. The strainer includes a suction port to suction oil from the oil sump, a discharge port to discharge oil toward the oil pump, and a filter. The suction port opens downward in the vertical direction. The discharge port opens in a direction intersecting the vertical direction toward the oil pump.

A transmission including an electric machine, a torque converter and a planetary gearset in a transmission housing that is connected to an engine. A turbine shaft is configured to transfer torque from the engine and the electric machine to the planetary gear set. A disconnect clutch selectively couples the input shaft from the engine to the torque converter housing of the torque converter. The disconnect clutch includes a disconnect clutch piston and a first balance dam. A torque converter clutch selectively connects the torque converter housing to the turbine and the turbine shaft. The torque converter clutch includes a torque converter clutch piston and a second balance dam. Ports in the housing permit automatic transmission fluid to flow between the turbine shaft and the torque converter clutch piston; the turbine shaft and the torque converter clutch piston; and the turbine shaft, the first balance dam, and the second balance dam.

A propulsion system for an electric vehicle including an internal combustion engine and an electric machine disposed in a transmission housing that is attached to the engine. An engine vibration damper is disposed between the engine and the electric machine. A torque converter connects the engine to the turbine shaft and is disposed in the housing radially inboard of the windings of the electric machine. A turbine shaft connected to the electric machine is configured to transfer torque from the engine and the electric machine through the turbine shaft to a planetary gear set connected to the turbine shaft. A disconnect clutch is operatively connected between the engine and the electric machine and is disposed in the housing radially inboard the windings of the electric machine and is connected to the turbine shaft.

A motor unit includes a motor including a rotor to rotate about a motor axis, and a stator radially outside of the rotor, a reduction gear connected to the motor, a differential connected to the motor through the reduction gear, a housing including a housing space to house the motor, the reduction gear, and the differential, and an oil passage to lead an oil to the motor. The oil passage includes an electric pump and a cooler. The electric pump and the cooler are fixed to the housing. The electric pump includes a portion located vertically below the cooler.

A vehicle drive device includes: a rotating electrical machine that functions as a driving force source for wheels; an input member drivingly connected to rotating electrical machine; a pair of output members each drivingly connected to wheel; a differential gear mechanism that distributes rotation transmitted from rotating electrical machine to pair of output members; a transmission gear mechanism that drivingly connects input member and differential gear mechanism; a hydraulic pump that includes a pump rotor and chamber housing the pump rotor and that supplies oil to at least the rotating electrical machine; and a case. The case includes a partition portion that separates in an axial direction a first housing chamber housing rotating electrical machine and a second housing chamber housing transmission gear mechanism and differential gear mechanism). Pump chamber is formed in partition wall so as to be located between first and second housing chambers in the axial direction.

A variator includes an epicyclic gear set that has at least three nodes. The variator includes a pumping unit connected to a first node of the epicyclic gear set. The variator includes a clutch connected to a second node of the epicyclic gear set. The clutch is selectively movable between three positions. When in the first position, the clutch allows the second node to freewheel. When in the second position, the clutch connects the second node to a fixed surface. When in the third position, the clutch connects the second node to an electric motor. The variator includes a receiver connected to the third node of the epicyclical gear set. The receiver is configured to receive a drive shaft.

An intermediate wall is provided with a return oil hole through which oil discharged from a friction engagement device returns toward an oil reservoir. A chain drive is disposed adjacent to the intermediate wall. The chain drive transmits a driving force from an input member and/or a rotary electric machine to an oil pump. There is provided an oil guide through which oil flowing through the return oil hole is guided to a region other than a chain placement region inside a case. The chain placement region is a region where a chain of the chain drive is placed.

A powertrain assembly includes one or several electric motors, a gearbox comprising a gearbox housing, an axle comprising: an axle housing, movable parts inside axle housing, comprising a shaft for a wheel, a lubricating system comprising an axle lubricating device comprising an axle oil sump and a gearbox lubricating device comprising a gearbox oil sump inside the gearbox housing which is a dry sump having an oil storage area which is separate from said gearbox oil sump, a scavenge pump and a first duct configured to retrieve oil from gear box oil sump and to convey the retrieved oil up to the oil storage area, and a main pump and a second duct configured to convey oil from the storage oil area to lubricate the gears of the gearbox.

A transmission assembly for an electric drive comprises a drive shaft, a reduction gearing rotatably drivable by the drive shaft, a power distribution unit drivingly connected to the reduction gearing and configured to transmit a rotational motion to two output parts, a parking lock unit having a parking ratchet wheel which is connected in a rotationally fixed manner to a torque-transmitting member in the power path between the drive shaft and the output parts, and having a controllable locking element which can be selectively engaged with the parking ratchet wheel; wherein the parking lock unit is arranged in a parking lock housing which is liquid-tightly sealed with respect to a transmission housing so that a first oil bath in the transmission housing is separated from a second oil bath in the parking lock housing.