发明名称 |
Coast clutch control for multiple speed automatic transmission. |
摘要 |
<p>A manual valve alternately connects a source of regulated line pressure to a forward drive passage and to a reverse drive passage. A shift valve alternately connects these passages to an input port of a coast clutch valve in accordance with the state of a solenoid-operated valve. A control port of the coast clutch shift valve is pressurized either from a manual valve, when the gear is selected manually by the vehicle operator, or from the source of variable pressure control by operation of a variable force solenoid. In accordance with the control pressure, the coast clutch shift valve either connects its input to a line connected to the coast clutch (72) or vents the input to a drain passage in the shift valve.</p> |
申请公布号 |
EP0345433(A2) |
申请公布日期 |
1989.12.13 |
申请号 |
EP19890106188 |
申请日期 |
1989.04.07 |
申请人 |
FORD-WERKE AKTIENGESELLSCHAFT;FORD MOTOR COMPANY LIMITED;FORD FRANCE SOCIETE ANONYME |
发明人 |
MCKENZIE, FRAN G. |
分类号 |
F16H3/46;F16H3/66;F16H59/08;F16H59/18;F16H61/00;F16H61/02;F16H61/04;F16H61/06;F16H61/08;F16H61/21 |
主分类号 |
F16H3/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|