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e.电动液压泵控制当蓄能器中制动液压力低于15.4 MPa而使组合压力开关中压力控制开关13闭合时、电动液压泵继电器12的励磁线圈中将有电流通过而处于激励状态,其1端子与4端子之间的触点闭合、电动液压泵14因此而通电运转,使蓄能器中制动液压力开始升高;当蓄能器中制动液压力升至18.3 MPa以上时,组合压力开关中压力控制开关13断开,电动液压泵继电器12的励磁线圈断电而处于非激励状态,其1端子与4端子之间的触点断开,电动液压泵14停止运转。 f.ABS制动与自动变速器换挡控制在主电磁阀通电的同时,有电压信号供
e. Electric Hydraulic Pump Control When the brake fluid pressure in the accumulator is lower than 15.4 MPa and the pressure control switch 13 in the combination pressure switch is closed, a current will flow through the excitation coil of the electro-hydraulic pump relay 12 to be in an excited state, The contact between its 1 terminal and the 4 terminal is closed and the electrohydraulic pump 14 is thus energized to start increasing the brake fluid pressure in the accumulator. When the brake fluid pressure in the accumulator rises above 18.3 MPa , The pressure control switch 13 in the combination pressure switch is turned off, the excitation coil of the electro-hydraulic pump relay 12 is de-energized and deactivated, the contact between the terminals 1 and 4 is disconnected, and the electrohydraulic pump 14 is stopped. f.ABS brake and automatic transmission shift control In the main solenoid valve is energized at the same time, there is a voltage signal for