发明名称 |
STEUERSYSTEM FUER DIE VORWAERTS- UND RUECKWAERTSKUPPLUNGEN EINES STUFENLOSEN RIEMENGETRIEBES. |
摘要 |
<p>In a continually variable belt-driven transmission, a system for actuating and controlling the operation of the forward clutch (118) and reverse clutch (120) includes a source of hydraulic pressure (36) regulated at line pressure, an accumulator control valve (228), a line and belt load control solenoid (242) and solenoid-actuated valve (240), an accumulator (230), a decel disconnect solenoid-operated valve (370) and a manual valve (220). The line and belt-load control valve (240) regulates a pressure signal applied to the accumulator control valve (228) whose output pressure develops, on the piston (236) of the accumulator (230), a force that adds to a spring force tending to purge the accumulator (230) and add that flow to the flow through an orifice (234) directed through the manual valve (220) to the selected clutch (118;120). The decel disconnect solenoid (378) operates in accordance with a control signal that senses the occurrence of a hard wheel brake condition to vent the forward clutch (118), thereby permitting the pulleys (14,16) of the transmission to turn during the braking condition sufficient to allow a drive ratio change to the lowest drive ratio, and thereafter to regulate clutch pressure to permit immediate reacceleration of the vehicle.</p> |
申请公布号 |
DE3782731(D1) |
申请公布日期 |
1992.12.24 |
申请号 |
DE19873782731 |
申请日期 |
1987.12.10 |
申请人 |
FORD-WERKE AG, 5000 KOELN, DE |
发明人 |
MOAN, RICHARD DAVID, LIVONIA MICHIGAN 48154, US |
分类号 |
F16D48/02;B60W30/18;F16H37/06;F16H47/00;F16H47/06;F16H59/06;F16H61/02;F16H61/06;F16H61/08;F16H61/66;F16H61/662;F16H63/06;F16H63/44;(IPC1-7):F16H59/06 |
主分类号 |
F16D48/02 |
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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