发明名称 |
Apparatus for reducing pressure of frictional coupling device of vehicle automatic transmission upon shifting to non-drive position |
摘要 |
An apparatus for controlling an automatic transmission of a motor vehicle which is shifted to a non-drive position with a releasing action of a hydraulically operated frictional coupling clutch upon operation of a manually operated member from a drive position to a non-drive position, the apparatus including a non-drive shift detecting device for detecting a non-drive shifting operation of the manually operated member from the drive position to the non-drive position, a rapid pressure reduction device operated upon detection of the non-drive shifting operation for rapidly reducing a pressure of the hydraulically operated frictional coupling device to a predetermined pressure level, and a continuous pressure reduction device for continuously reducing the pressure of the frictional coupling device from the predetermined pressure level at a predetermined reduction rate.
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申请公布号 |
US5827153(A) |
申请公布日期 |
1998.10.27 |
申请号 |
US19970883899 |
申请日期 |
1997.06.27 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
YASUE, HIDEKI;KIMURA, HIROMICHI |
分类号 |
F16H61/06;F16H61/04;F16H61/10;(IPC1-7):F16H61/06;F16H61/08 |
主分类号 |
F16H61/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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