A drive device that rotates an axle of a vehicle includes a motor, a decelerator connected to the motor, a differential connected to the motor via the decelerator, a housing that accommodates the motor, the decelerator, and the differential, an oil pump to send, to the motor, oil accommodated in the housing, and a controller to control the motor. The controller drives the oil pump after the ignition switch of the vehicle is turned off.

An oil module may include a conveying device for conveying oil along a flow path, a heat exchanger for temperature-controlling the oil, and a main body having a front side and a back side. The front side may include (i) an inlet opening and (ii) an outlet opening. The back side may include (i) at least one pump opening fluidically connected with the inlet opening, (ii) a first cooler opening fluidically connected with the at least one pump opening, and (iii) a second cooler opening fluidically connected with the outlet opening. The conveying device may be arranged on the back side and fluidically connected with the at least one pump opening. The heat exchanger may be arranged on the back side and fluidically connected with the first cooler opening and the second cooler opening.

A motor assembly includes a motor including a rotor that rotates about a motor axis, a transmission that transmits motive power of the motor to an axle, a housing that accommodates the motor and the transmission, and an oil pump fixed to the housing. The housing includes a tubular motor housing extending along the motor axis, and the motor housing includes a rib on a side surface facing the oil pump. The rib protrudes to a radially outer side from the side surface, and has a plate shape extending along the motor axis.

An axle assembly having an electric motor module, a drive pinion, a planetary gear set, and at least one one-way freewheel clutch. The planetary gear set may operatively connect the electric motor module and the drive pinion. The one-way freewheel clutch may be configured to selectively couple at least two components of the planetary gear set.

A transmission includes a fan assembly having a fan wheel, a cover, and a grating. The fan wheel is connected in a torsionally fixed manner to the input shaft of the transmission, and the fan cover is fixed in place on a holding frame, which, for example, includes multiple parts and is fastened to the housing of the transmission. The grating is formed by two grating parts, whose first separating line is a straight segment or is formed by two mutually aligned straight segments, and the cover includes two cover parts, whose second separating line is a plane curve, made up of straight segment sections.

A drive device includes a motor, a decelerator connected to the motor, a differential connected to the motor via the decelerator, a housing that accommodates the motor, the decelerator, and the differential, an oil pump that includes a motor assembly and a pump assembly that is rotated by the motor assembly, and sends, to the motor, oil accommodated in the housing, a rotation sensor to detect rotation of the pump assembly, and a controller to control the motor. The controller limits an output of the motor based on a detection result of the rotation sensor.

This disclosure relates to a motor vehicle including a transaxle with a cooling arrangement for semiconductor devices such as IGBTs or MOSFETs, and a corresponding method. In particular, this disclosure relates to a motor vehicle, such as an electrified vehicle, including a transaxle, a plurality of semiconductor devices mounted adjacent the transaxle, and a source of cooling fluid. The semiconductor devices are exposed to fluid from the source that flows into the transaxle.

There is provided a control device for a vehicle oil supply device that includes a mechanical oil pump configured to be rotatable forward and in reverse, an electric oil pump configured to suction oil stored in an oil storage portion that is common to the mechanical oil pump and the electric oil pump, a first filtering member provided to a first strainer of the mechanical oil pump, and a second filtering member provided to second strainer of the electric oil pump. The control device includes a controller configured to control the rotational speed of the electric oil pump. The controller is configured to restrict the rotational speed of the electric oil pump when the mechanical oil pump is rotated in reverse compared to when the mechanical oil pump is rotated forward.

A control device for a motor unit provided in a vehicle is disclosed. The motor unit includes a motor including multiple coils provided side by side around a motor axis; a transmission mechanism transmitting power of the motor to an axle; a housing housing the motor and the transmission mechanism; an electric oil pump delivering oil stored in the housing; and a coil temperature sensor detecting a temperature of the coil. The control device includes a motor controller driving and controlling the motor; and a pump controller driving and controlling the electric oil pump. The pump controller estimates an oil temperature according to an ambient temperature and the temperature of the coil, and determines a start timing of the electric oil pump based on an estimated oil temperature.

A gear portion of a drive device is connected to a motor shaft. An oil passage through which oil to cool a motor flows includes a first oil passage, a second oil passage, a third oil passage, and a fourth oil passage. The first oil passage connects a gear accommodation portion and a pump accommodation portion. The second oil passage connects the pump accommodation portion and an oil cooler. The third oil passage connects the oil cooler and the fourth oil passage. The fourth oil passage connects the third oil passage and a motor accommodation portion. Each of the first oil passage, the second oil passage, and the third oil passage is in a first housing portion. The fourth oil passage is in a third housing portion.