发明名称 FLUID PRESSURE CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
摘要 A fluid pressure control device including a first pump actuated by power from a motor; a pressure regulator that regulates a discharge pressure from the first pump; a second pump actuated by electric power; a switcher opening a first path extending from the pressure regulator to a fluid pressure chamber of a friction engagement element, and blocking a second path extending from the second pump to the fluid pressure chamber of the friction engagement element, when the signal pressure is equal to or more than a set pressure, and the switcher blocking the first and opening the second paths when the signal pressure is less than the set pressure; and a control that controls the second pump and the fluid supply unit to supply the fluid regulated by the pressure regulator to a destination different from the fluid pressure chamber of the friction engagement element when the motor is stopped.
申请公布号 US2012234645(A1) 申请公布日期 2012.09.20
申请号 US201213418906 申请日期 2012.03.13
申请人 AISIN AW CO., LTD. 发明人 SHIMIZU TETSUYA;JINNO TOMOYA;YAMAGUCHI MASAMICHI;TSUCHIDA KENICHI;ISHIKAWA KAZUNORI
分类号 F16D25/12 主分类号 F16D25/12
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