发明授权
US5349885A Hydraulic control system for controlling line pressure based on
backtorque and throttle rate in an automatic transmission
失效
液压控制系统，用于根据自动变速器中的回转力和油门速度来控制管路压力
- 专利标题： Hydraulic control system for controlling line pressure based on backtorque and throttle rate in an automatic transmission
- 专利标题（中）： 液压控制系统，用于根据自动变速器中的回转力和油门速度来控制管路压力
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申请号： US936203申请日： 1992-08-27
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公开(公告)号： US5349885A公开(公告)日： 1994-09-27
- 发明人: Hiroshi Yoshimura , Kazuo Sasaki , Kenji Kurisu , Takuji Fujiwara , Mitsutoshi Abe
- 申请人： Hiroshi Yoshimura , Kazuo Sasaki , Kenji Kurisu , Takuji Fujiwara , Mitsutoshi Abe
- 申请人地址： JPX Hiroshima
- 专利权人： Mazda Motor Corporation
- 当前专利权人： Mazda Motor Corporation
- 当前专利权人地址： JPX Hiroshima
- 优先权： JPX3-222580 19910903; JPX3-300732 19911115
- 主分类号： F16H59/18
- IPC分类号： F16H59/18 ; F16H59/28 ; F16H59/38 ; F16H59/70 ; F16H61/00 ; F16H61/04 ; F16H5/66
摘要：
An automatic transmission includes a multi-speed transmission gear mechanism having an input shaft, an output shaft and a plurality of friction coupling elements. A hydraulic control system selectively supplies a hydraulic pressure to the friction coupling elements, thereby selectively applying the friction coupling elements to cause the transmission gear mechanism to shift to a speed which is determined according to a predetermined shift pattern. The control system sets a target hydraulic pressure to be applied to the friction coupling elements according to the kind of the shift to be effected and the engine load, and, when it is detected that the transmission gear mechanism is to make a backout upshift due to reduction in the engine load, increases the target hydraulic pressure by an amount which is determined according to the throttle opening and the turbine speed.
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