发明授权
- 专利标题: Hydraulic control apparatus for automatic transmission
- 专利标题(中): 液压控制装置自动变速器
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申请号: US12292927申请日: 2008-12-01
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公开(公告)号: US07951034B2公开(公告)日: 2011-05-31
- 发明人: Tetsuya Shimizu , Kenichi Tsuchida , Masamichi Yamaguchi , Satoshi Nishio , Akitomo Suzuki , Kazunori Ishikawa
- 申请人: Tetsuya Shimizu , Kenichi Tsuchida , Masamichi Yamaguchi , Satoshi Nishio , Akitomo Suzuki , Kazunori Ishikawa
- 申请人地址: JP Anjo
- 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
- 代理机构: Oliff & Berridge, PLC
- 优先权: JP2007-311253 20071130
- 主分类号: F16H31/00
- IPC分类号: F16H31/00
摘要:
In a condition of a vehicle which remains stationary or is about to stop and of a forward second speed having a clutch and a brake engaged, an N range is changed from a D range based on a shift lever operation and a forward range pressure is discharged from a manual shift valve. At this time, an orifice and a check ball are used to delay discharge of oil paths which communicate with a linear solenoid valve relative to discharge of an oil path a1 which communicates with a linear solenoid valve. Specifically, release of the brake is delayed relative to release of the clutch, so that a shift by way of a forward first speed through engagement of a one-way clutch can be prevented.
公开/授权文献
- US20090143181A1 Hydraulic control apparatus for automatic transmission 公开/授权日:2009-06-04
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