发明授权
- 专利标题: Hydraulic system for controlling shift in automatic transmission
- 专利标题(中): 用于控制自动变速箱换档的液压系统
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申请号: US264715申请日: 1988-10-31
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公开(公告)号: US4949597A公开(公告)日: 1990-08-21
- 发明人: Akihiro Ueki , Kazuhiko Sugano
- 申请人: Akihiro Ueki , Kazuhiko Sugano
- 申请人地址: JPX Yokohama
- 专利权人: Nissan Motor Co., Ltd.
- 当前专利权人: Nissan Motor Co., Ltd.
- 当前专利权人地址: JPX Yokohama
- 优先权: JPX62-273220 19871030
- 主分类号: F16H61/06
- IPC分类号: F16H61/06 ; F16H61/08 ; F16H61/10
摘要:
A single sequence valve is connected to a 3-4 shift valve thereby defining a drain circuit. The sequence valve is responsive to hydraulic pressures which act on a fourth speed apply chamber of a band brake and a high clutch, respectively. The sequence valve normally defines the drain circuit, but delivers hydraulic fluid to the 3-4 shift valve, then to the fourth speed apply chamber of the band brake after a command for a 4-2 downshift has taken place until the hydraulic pressure in the high clutch drops to a predetermined value.
公开/授权文献
- US5411890A Method for measuring atmospheric corrosion 公开/授权日:1995-05-02
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