Hydraulic apparatus for automatic transmission

专利名称：Hydraulic apparatus for automatic

transmission

发明人：Hanyu, Keiichi c/o Honda R&D Co., Ltd.,Igari,

Genso c/o Honda R&D Co., Ltd.,Aoki, Akihirac/o Honda R&D Co., Ltd.

申请号：EP10176006.4申请日：20100909公开号：EP2302265B1公开日：20120314

摘要：In a hydraulic apparatus for an automatic transmission having a torqueconverter (20) with a lockup clutch (20c) and a CVT, there are provided a first controlvalve (124) for controlling supply of the hydraulic pressure to the lockup clutch oilchamber (20c1), a first electromagnetic solenoid valve (142) for controlling operation ofthe valve (124), a second control valve (94) for controlling supply of the hydraulicpressure to the CVT pulleys (30, 32), a second electromagnetic solenoid valve (104) forcontrolling operation of the second valve (94), a switching valve (150) interposed

between the oil chamber (20c1) and the valve (124). In the apparatus, when detecting thatthe valve (124) or valve (142) is failed and the lockup clutch is locked in engagedcondition, current supply to the second valve (104) is stopped so that it operates theswitching valve (150) to disengage the lockup clutch, thereby enabling to forcibly releasethe engagement without manipulation by the operator.

申请人：HONDA MOTOR CO LTD

地址：JP

国籍：JP

代理机构：Rupp, Christian

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