An electrically-operated electric drive module for use in a vehicle framework that is configured for a powertrain that includes an internal combustion engine. The electrically-operated electric drive module permits the vehicle to be converted to an electrically propelled vehicle in a manner that is cost-effective and which is relatively low in weight.

A hydraulic circuit for a vehicle driving device includes an oil pump, a clutch oil passage, a cooling oil passage, a pressure regulating valve, and a shift valve. The cooling oil passage guides oil to a cooled portion of a vehicle. Supply of oil to the clutch oil passage and the cooling oil passage is switched by switching of the pressure regulating valve and the shift valve. The cooling oil passage includes: a shaft center cooling oil passage which supplies cooling oil to a shaft center of a rotation shaft of an electric motor mounted on the vehicle; and a cooling oil passage shift valve which switches presence/absence of supply of oil to the shaft center cooling oil passage.

A lubricant supported electric motor includes a stator extending along an axis, and a rotor rotatably disposed around the stator in radially surrounding and spaced relationship to define at least one support chamber. A lubricant is disposed in the support chamber for supporting the rotor around the stator. A wheel rim is fixedly attached to the rotor and is disposed in surrounding relationship with the rotor and the stator. Thus, in a first aspect, rotation of the rotor is directly transferred to the wheel rim such that the wheel rim rotates in accordance with the rotation of the rotor. In accordance with another aspect, the rotor is rotatably disposed within the stator, and a planetary gear reduction mechanism is operably interconnected to the rotor, the stator, and the wheel rim and configured to rotate the wheel rim in response to rotation of the rotor within the stator.

An electric drive apparatus includes a rotating electric machine and a transmission. The rotating electric machine includes a rotor, a stator and a first housing. The transmission includes a motive power transmitting unit, a second housing provided integrally with the first housing, and lubricating oil provided in the second housing to lubricate the motive power transmitting unit. The stator includes a stator coil that has first and second coil end parts respectively protruding from first and second axial end faces of a stator core. Each of phase windings of the stator coil has turn portions included in the first coil end part and joints included in the second coil end part. The second coil end part is located on the same axial side of the stator core as the transmission whereas the first coil end part is located on the opposite axial side of the stator core to the transmission.

A motor operating module includes a motor including a rotor and a stator, a gear unit provided on one side of the motor, and being configured to receive torque of the rotor and to transmit the torque to outside, and a housing configured to accommodate the motor and the gear unit in an inner space including a front space formed on a first side, a rear space formed on a second side opposite to the first side, and rear-facing connection flow paths extending from the front space toward the rear space to provide a path for a cooling fluid to flow, such that a motor may be cooled by using a churning effect of an oil caused by rotation of a gear without a separate operating device such as a pump.

A motor having a motor shaft rotatable about a motor axis; a power transmission having gears and connected to the motor shaft; a housing having a motor housing portion accommodating the motor and a gear accommodation portion accommodating the power transmission; a fluid contained in the housing; and a fluid channel through which the fluid flows, in which a reservoir storing the fluid above the motor axis is provided in the inside of the gear accommodation portion. The fluid channel includes an external supply channel for supplying the fluid from an outside of the motor to the motor, and an internal supply channel for supplying the fluid to a hollow portion of the motor shaft. The reservoir has a first supply port and a second supply port. The external supply channel is connected to a first supply port. The internal supply channel is connected to a second supply port.

A vehicle stalactite passive lubrication system includes a drive unit having an electric motor and a gear. A sump has a sump extension. A lubricant is collected in the sump for gravity flow into the sump extension. A stalactite member is fixed to the drive unit and is positioned above an element to be filled with a fluid, lubricated or cooled. The stalactite member is directed downwardly toward the sump with the lubricant splashed by gear rotation collected on neighboring walls and the stalactite member and directed downwardly by gravity into the sump or target element. The stalactite member includes: a drip edge oriented at an angle to a horizontal plane; and a tip defining an end of the drip edge. The angle is selected to direct the lubricant to discharge off the stalactite member at the tip as a lubricant stream into the sump or target element.

Methods and systems are provided for integrating a gearbox and an electric motor in a same housing. In one example, a system may include enclosing a gearbox containing an idler gear configured to drive an accessory gear coupled to a differential.

A vehicle drive device including a case, a rotary electric machine provided in the case and including power lines 1U, 1V, and 1W electrically connected to a power supply via a power converter (inverter IV), bus bars 7U, 7V, and 7W extending inside the case and joined to the power lines, a hydraulic pump (electric hydraulic pump 72), and an oil passage including ejection holes through which oil discharged from the hydraulic pump is ejected toward at least one of the power lines and the bus bars.

A power assembly and a vehicle. The power assembly includes a housing, and a first drive motor, a first speed reducer, a first oil path, a second drive motor, a second speed reducer, a second oil path, and a third oil path that are located inside the housing. The power assembly further includes a first oil pump and a second oil pump. The housing is provided with an oil pan. The first drive motor includes a first stator and a first rotor. The second drive motor includes a second stator and a second rotor. Both the first oil pump and the second oil pump are connected to the oil pan. The power assembly simplifies the oil paths in the housing and improve an integration level.