发明申请
- 专利标题: VEHICLE DRIVE UNIT
- 专利标题(中): 车辆驱动单元
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申请号: US12273309申请日: 2008-11-18
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公开(公告)号: US20090143193A1公开(公告)日: 2009-06-04
- 发明人: Atsuya Ohshima , Shigeo Tsuzuki , Mitsugi Yamashita , Haruki Shirasaka
- 申请人: Atsuya Ohshima , Shigeo Tsuzuki , Mitsugi Yamashita , Haruki Shirasaka
- 申请人地址: JP Anjo-shi
- 专利权人: AISIN AW CO., LTD.
- 当前专利权人: AISIN AW CO., LTD.
- 当前专利权人地址: JP Anjo-shi
- 优先权: JP2007-310765 20071130
- 主分类号: B60W10/10
- IPC分类号: B60W10/10 ; F16H61/28
摘要:
A vehicle drive unit is provided which includes a hydraulic circuit capable of efficiently supplying a hydraulic pressure from an accumulator to a hydraulic servo while minimizing the capacity of the accumulator. In a hydraulic circuit included in a continuously variable transmission, an accumulator is connected through an electromagnetic switch valve to an oil passage connecting a clutch pressure control valve and a manual valve, a one-way valve for allowing oil to flow only in the direction from the clutch pressure control valve toward the accumulator and the forward clutch is provided in the oil passage. The electromagnetic switch valve switches an oil passage to a communicating state when the oil pump is driven and switches the oil passage to a shut-off state when the oil pump is stopped.
公开/授权文献
- US08016718B2 Vehicle drive unit 公开/授权日:2011-09-13