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    • 8. 发明申请
    • ANOMALY DETECTION APPARATUS FOR AUTOMATIC TRANSMISSION
    • 用于自动变速箱的异常检测装置
    • US20100223986A1
    • 2010-09-09
    • US12715482
    • 2010-03-02
    • Taihei WakamatsuYoshitaka SuzukiHiroatsu Endo
    • Taihei WakamatsuYoshitaka SuzukiHiroatsu Endo
    • G01M15/09
    • G01M13/022
    • One embodiment of the present invention provides an anomaly detection apparatus for an automatic transmission, the automatic transmission including an electrically-operated oil pump that is rotationally driven by an electric motor, including: a solenoid that is capable of switching a line pressure of a hydraulic control circuit that controls the automatic transmission between a high pressure and a low pressure; and an oil pressure switch that is turned on or off in response to the line pressure, wherein, in response to an oil pressure command value, whether the oil pressure switch is turned on or off according to the oil pressure command value is determined, and the determination and a load state of the electrically-operated oil pump are compared so as to distinctively determine in which of the solenoid and the oil pressure switch, an anomaly has occurred.
    • 本发明的一个实施例提供了一种用于自动变速器的异常检测装置,该自动变速器包括由电动机旋转驱动的电动油泵,包括:螺线管,其能够切换液压的管路压力 控制电路,控制高压和低压之间的自动变速器; 以及响应于管路压力而接通或断开的油压开关,其中,响应于油压指令值,确定油压开关是否根据油压指令值被接通或断开,以及 比较电动油泵的确定和负载状态,以区别地确定螺线管和油压开关中的哪一个发生异常。