发明名称 |
Shift control apparatus of automatic transmissions |
摘要 |
A shift control apparatus is arranged to effect a shift in an automatic transmission by changeover of friction elements to be engaged with disengagement of a disengagement-side friction element and engagement of an engagement-side friction element. A shift controller is configured to detect an end of a loss stroke in the engagement-side friction element, and performs an operation to decrease the disengagement-side working oil pressure at a set gradient and to increase the engagement-side working oil pressure at a predetermined gradient upon detection of the end of the loss stroke in the engagement-side friction element. The predetermined gradient of the engagement-side working oil pressure for the engagement-side friction element is made lower for a low engine load than for a high engine load. |
申请公布号 |
US6638196(B2) |
申请公布日期 |
2003.10.28 |
申请号 |
US20010936811 |
申请日期 |
2001.09.18 |
申请人 |
JATCO LTD |
发明人 |
MURASUGI TAKASHI;SANO TAKASHI;OTAKE KAZUNARI |
分类号 |
F16H59/24;F16H61/06;F16H61/08;(IPC1-7):F16H61/26 |
主分类号 |
F16H59/24 |
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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