Vehicle drive device
AssigneesAisin Aw Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsMikio Iwase, Daiki Suyama, Naoya Jinnai, Tatsuya Okishima, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
Life of this patent
Estimating the term…
Abstract
A vehicle drive device in which a friction engagement device, a rotary electric machine, and a speed change device are provided on a power transfer path that connects between an input member drivably coupled to an internal combustion engine and an output member drivably coupled to wheels, the elements provided in this order from the input member side. The disclosed combination achieves a variety of benefits, such as suppressing a steep rise in hydraulic pressure due to pressure discharged from a hydraulic control device, while maintaining a decreased size.
Claims6
A vehicle drive device in which a friction engagement device, a rotary electric machine, and a speed change device are provided on a power transfer path that connects between an input member drivably coupled to an internal combustion engine and an output member drivably coupled to wheels, the friction engagement device, the rotary electric machine, and the speed change device being arranged in this order from the input member side, comprising:
- a housing portion that has a circumferential wall that surrounds a radially outer side of the rotary electric machine and the friction engagement device, and a support wall that extends in a radial direction at a location between the rotary electric machine and the speed change device in an axial direction;
- a hydraulic control device fixed to the housing portion;
- a supply oil passage formed in the support wall to supply oil from the hydraulic control device to the friction engagement device;
- and
- a rotation sensor that has a sensor stator fixed to the support wall and that detects rotation of a rotor with respect to a stator of the rotary electric machine, wherein:
- the circumferential wall has a first through hole and a second through hole that penetrate the circumferential wall in the radial direction;
- a first wiring member that extends from the stator is connected to a first terminal of a terminal block provided in the first through hole;
- a second wiring member that extends into the housing portion from an outside through the second through hole is fixed to a non-formed region which is a region of the support wall in which the supply oil passage is not formed, and includes a first connection wiring portion and a second connection wiring portion branched from each other;
- and
- the first connection wiring portion is connected to a second terminal of the rotation sensor, and the second connection wiring portion is connected to a third terminal of the hydraulic control device.
Dependencies are inferred from the claim text.