发明名称 |
Shift control system for automatic transmission |
摘要 |
A shift control system for an automatic transmission including frictional engagement elements to be applied by actuating a piston by an oil pressure. The shift control system comprises: a pressure regulating valve for regulating the oil pressure to be fed to the frictional engagement elements and for controlling the regulated pressure level; a shift detector for detecting a shift to be executed by feeding the oil pressure to the frictional engagement elements; a low-pressure standby unit for setting the regulated pressure level of the pressure regulator valve to such a value during a predetermined time period after the shift has been detected that the oil pressure to be fed to the frictional engagement elements moves only the piston; and a booster for controlling the regulated pressure level so that the oil pressure to be fed to the frictional engagement elements may gradually increase after lapse of the predetermined time period.
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申请公布号 |
US5527236(A) |
申请公布日期 |
1996.06.18 |
申请号 |
US19940253777 |
申请日期 |
1994.06.03 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;AISHIN AW CO., LTD. |
发明人 |
KIMURA, HIROMICHI;OBA, HIDEHIRO;FUKATSU, AKIRA;SUZUKI, AKITOMO |
分类号 |
F16H61/04;F16H59/68;F16H61/02;F16H61/06;F16H61/08;(IPC1-7):B60K41/06 |
主分类号 |
F16H61/04 |
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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