发明名称 |
Drucksteuersystem für das Arbeitsfluid in einem automatischen Getriebe |
摘要 |
A working fluid pressure control system for an automatic power transmission includes a pre-charge pressure regulating mechanism for temporarily elevating a working fluid pressure abruptly and subsequently drop the working fluid pressure for generating a pre-charging constant pressure for a start-up friction element, and a detecting portion for detecting an operational range before selection of neutral range. When selection is made from neutral range to a traveling range, and the traveling range is different from the operational range before selection of the neutral range, the pre-charge pressure regulating mechanism is actuated when judgement is made that the start-up friction element engaged in the operational range before selection of neutral range is released, thus selection being performed within a short period without accompanying with a shock. |
申请公布号 |
DE19634441(A1) |
申请公布日期 |
1997.04.24 |
申请号 |
DE1996134441 |
申请日期 |
1996.08.26 |
申请人 |
JATCO CORP., FUJI, SHIZUOKA, JP |
发明人 |
IIZUKA, NAONORI, FUJI, SHIZUOKA, JP |
分类号 |
F16H59/38;F16H59/68;F16H59/70;F16H61/04;F16H61/06;F16H61/08;(IPC1-7):F16H61/06 |
主分类号 |
F16H59/38 |
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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