发明名称 |
Hydraulic pressure control system for automatic transmission |
摘要 |
<p>A hydraulic control system includes switching means for receiving as a signal voltage a hydraulic pressure which is output from each shifting means when all units of the shifting means are caused to output a hydraulic pressure, and being responsive to the reception of the signal pressure to be switched to a predetermined state for blocking a hydraulic-pressure supply path to specific hydraulic servos, thereby achieving a specific speed out of a plurality of speeds; and supply switching means provided in a hydraulic-pressure supply path to a hydraulic servo which is not included in the specific hydraulic servos, for switching between supply and cut-off of the hydraulic pressure to the hydraulic servo so as to assure two speeds in the event of the signal failure in a hydraulic control system for individually controlling engaging elements in an automatic transmission by using electric signals. <IMAGE></p> |
申请公布号 |
EP1031770(A3) |
申请公布日期 |
2002.06.19 |
申请号 |
EP19990126177 |
申请日期 |
1999.12.29 |
申请人 |
AISIN AW CO., LTD. |
发明人 |
SUZUKI, AKITOMO;TSUKAMOTO, KAZUMASA;NISHIDA, MASAAKI;HISANO, TAKAYUKI |
分类号 |
F16H61/00;F16H61/12;F16H63/12;(IPC1-7):F16H61/12;F16H61/02 |
主分类号 |
F16H61/00 |
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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