发明名称 |
An automatic transmission. |
摘要 |
An electrohydraulic control system for an automatic transmission includes planetary gearsets, clutch and brakes that control the condition of the gear components, hydraulically actuated solenoid control valves, electronic sensors connected to a microprocessor, a gear selector mechanism and an overdrive cancel switch. The extent to which a gear ratio change is completed, as represented by the ratio of the current operating gear ratio and the gear ratio associated with gear ratio at the completion of the gear shift, is used as a variable in algorithms executed by the microprocessor to schedule change in state of solenoid operated valve. The state determines the engaged and disengaged condition of friction elements that produce the gear shift. <IMAGE> |
申请公布号 |
EP0633410(A1) |
申请公布日期 |
1995.01.11 |
申请号 |
EP19940304487 |
申请日期 |
1994.06.21 |
申请人 |
FORD MOTOR COMPANY LIMITED;FORD WERKE A.G.;FORD FRANCE S. A. |
发明人 |
KOVALSKY, MARK STEWART;OLDANI, PATRICK EDWARD;NEIGEBAUER, JAMES JOSEPH;GREENE, THOMAS LEE;LA VOIE, VINCENT PATRICK |
分类号 |
F16H59/08;F16H59/38;F16H59/44;F16H59/46;F16H59/54;F16H59/62;F16H59/68;F16H59/78;F16H61/00;F16H61/06;F16H61/08 |
主分类号 |
F16H59/08 |
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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