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    • 26. 发明授权
    • Fluid pressure control device for automatic transmission
    • 用于自动变速器的流体压力控制装置
    • US08506454B2
    • 2013-08-13
    • US13418906
    • 2012-03-13
    • Tetsuya ShimizuTomoya JinnoMasamichi YamaguchiKenichi TsuchidaKazunori Ishikawa
    • Tetsuya ShimizuTomoya JinnoMasamichi YamaguchiKenichi TsuchidaKazunori Ishikawa
    • F16H61/26
    • F16H61/0031B60Y2300/18016F16H61/0206F16H2312/14Y10T477/6939
    • 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.
    • 一种流体压力控制装置,包括由马达的动力驱动的第一泵; 调节来自第一泵的排出压力的压力调节器; 由电力驱动的第二泵; 切换器,其将从压力调节器延伸到摩擦接合元件的流体压力室的第一路径打开,并且当信号压力等于或等于第二路径时,阻塞从第二泵延伸到摩擦接合元件的流体压力室的第二路径 或超过设定压力,并且当信号压力小于设定压力时,切换器阻挡第一和打开第二路径; 以及控制器,其控制所述第二泵和所述流体供给单元,以在所述电动机停止时将由所述压力调节器调节的流体供应到与所述摩擦接合元件的流体压力室不同的目的地。
    • 27. 发明申请
    • HYDRAULIC CONTROL APPARATUS OF AUTOMATIC TRANSMISSION
    • 液压控制装置自动变速器
    • US20110220823A1
    • 2011-09-15
    • US13023723
    • 2011-02-09
    • Tetsuya ShimizuKenichi TsuchidaYoshimitsu HyodoKazunori Ishikawa
    • Tetsuya ShimizuKenichi TsuchidaYoshimitsu HyodoKazunori Ishikawa
    • F16K31/02
    • F16H61/12F16H61/0206F16H61/686F16H2061/1232F16H2061/1292Y10T477/69363
    • A hydraulic control apparatus of an automatic transmission which can supply a hydraulic oil pressure to one or more hydraulic servos of frictional engagement elements at a failure time when a de-energized condition is attained. The apparatus includes a normally closed type first solenoid valve for generating the hydraulic oil pressure, and a normally open type second solenoid valve for outputting a first signal pressure for adjusting and controlling an oil pressure to a line pressure; a signal output device for outputting the line pressure or a modulator pressure. The line pressure is reduced to a certain pressure, as a second signal pressure at a normal time, and causes the second signal pressure not to be output at the failure time; and an oil pressure switching device switchable between a normal time position in which the hydraulic oil pressure from the first solenoid valve can be supplied to the hydraulic servo, and a failure time position in which the input line pressure is supplied to the hydraulic servo, is switched to the normal time position by the first signal pressure and second signal pressure, which are input opposed to each other, being input, and switched to the failure time position by the first signal pressure being input and the second signal pressure not being input.
    • 一种自动变速器的液压控制装置,其能够在达到断电状态的失效时间向一个或多个摩擦接合元件的液压伺服系统提供液压油压力。 该装置包括用于产生液压油压的常闭型第一电磁阀和用于输出用于调节和控制油压至管路压力的第一信号压力的常开型第二电磁阀; 用于输出管路压力或调制器压力的信号输出装置。 线路压力在正常时间作为第二信号压力降低到一定压力,并且在故障时间引起第二信号压力不被输出; 以及能够在其中可以向液压伺服器供给来自第一电磁阀的液压油的正常时间位置和向液压伺服机构输入管路压力的故障时间位置之间切换的油压切换装置, 通过输入相对输入的第一信号压力和第二信号压力切换到正常时间位置,并且被输入的第一信号压力并且不输入第二信号压力而被切换到故障时间位置。