Vehicle drive device
US9695742B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Feb 18, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.