发明申请
- 专利标题: Control apparatus for automatic transmission
- 专利标题(中): 自动变速箱控制装置
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申请号: US10947298申请日: 2004-09-23
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公开(公告)号: US20050064988A1公开(公告)日: 2005-03-24
- 发明人: Yoshio Hasegawa , Tooru Matsubara , Tadayuki Nagai
- 申请人: Yoshio Hasegawa , Tooru Matsubara , Tadayuki Nagai
- 申请人地址: JP Toyota-shi
- 专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址: JP Toyota-shi
- 优先权: JP2003-331446 20030924
- 主分类号: F16H61/20
- IPC分类号: F16H61/20 ; F16H3/66 ; F16H61/06 ; F16H61/686 ; B60K41/02
摘要:
In a control apparatus for an automatic transmission, a return control is executed to engage a clutch that has had its engagement pressure lowered and to disengage a brake so as to resume the state of the automatic transmission from the neutral state under a neutral control to the one where the forward speed is established. As the time for the neutral control becomes longer, the decrease in the torque of an output shaft of the automatic transmission becomes gentler. Accordingly an initial value of a control command value for the clutch pressure is decreased with the increase in the neutral control time such that the engagement of the clutch becomes gentler.
公开/授权文献
- US07108633B2 Control apparatus for automatic transmission 公开/授权日:2006-09-19
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