发明授权
- 专利标题: Control system for servo hydraulic pressure in vehicular automatic transmission
- 专利标题(中): 车辆自动变速器伺服液压控制系统
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申请号: US980605申请日: 1992-11-24
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公开(公告)号: US5334114A公开(公告)日: 1994-08-02
- 发明人: Masahiko Ando , Koji Noda , Yoshihisa Yamamoto , Masahiro Hayabuchi , Kazumasa Tsukamoto , Yasuo Hojo , Seitoku Kubo , Yutaka Taga , Hidehiro Oba
- 申请人: Masahiko Ando , Koji Noda , Yoshihisa Yamamoto , Masahiro Hayabuchi , Kazumasa Tsukamoto , Yasuo Hojo , Seitoku Kubo , Yutaka Taga , Hidehiro Oba
- 申请人地址: JPX both of JPX both of
- 专利权人: Aisin AW Co., Ltd.,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人: Aisin AW Co., Ltd.,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址: JPX both of JPX both of
- 优先权: JPX3-344120 19911203
- 主分类号: F16H61/06
- IPC分类号: F16H61/06 ; F16H61/02 ; F16H61/04 ; F16H61/08 ; F16H61/18 ; F16H3/44
摘要:
A control system is provided for servo hydraulic pressure in a vehicular automatic transmission having planetary gear mechanisms. Shifting elements of the mechanisms can be connected to establish a different power flow in accordance with engagement or release of frictional engagement devices under the control of servo hydraulic pressure to achieve plural speed stages. The system comprises a servo pressure feed line for feeding, even in a non-running range, servo hydraulic pressure to at least one particular device out of plural frictional engagement devices which are caused to simultaneously engage in a reverse range of the transmission, a directional control valve disposed in the line to control feed or drain of the servo hydraulic pressure to or from said particular device through the line, and a solenoid valve for controlling the control valve to prevent the feed of the servo hydraulic pressure at vehicle speeds above a predetermined value.
公开/授权文献
- US6016921A Sizing panel for rotating cylindrical separator 公开/授权日:2000-01-25