An electro-hydraulic power device of a hydraulic brake system according to the present invention comprises: a main flow passage; a pump to pressurize and transport oil to the main flow passage; a control flow passage branching off from the main flow passage; a first proportional control flow valve to supply the oil in the main flow passage to the control flow passage; a second proportional control flow valve to drain the oil in the control flow passage; a safety braking pressure setting valve; a safety control valve to switch an output mode of the proportional control flow valve and the safety braking pressure setting valve on and off; and an out select valve to increase an oil pressure in the control flow passage by injecting air or drain the oil in the control flow passage. Accordingly, a control pressure can be formed by flow control of the first and the second proportional control flow valve. A braking method can be controlled in various forms including initial braking, emergency/common braking, safety braking, wheel sliding protection, brake releasing, etc.

    본 발명의 유압 제동 시스템용 전기 유압 동력 장치는, 메인유로; 상기 메인유로로 오일을 압송하는 펌프; 상기 메인유로에서 분기된 제어유로; 상기 메인유로의 오일을 제어유로로 공급하는 제1비례제어유량밸브; 상기 제어유로의 오일을 배유하는 제2비례제어유량밸브; 보안제동압력설정밸브; 상기 제1비례제어유량밸브와 보안제동 압력설정밸브의 출력모드를 ON/OFF 제어하는 보안제동밸브; 및 상기 제어유로의 오일 압력을 충기 또는 배유하는 아웃셀렉트밸브;를 포함하는 것을 특징으로 한다. 이에 따라, 제1,2비례제어유량밸브의 유량 제어에 의해 제어 압력을 형성하는 효과가 있다. 즉, 초기 제동, 비상·상용 제동, 보안 제동, 차륜활주보호, 제동 완해 등과 같은 다양한 형태로 제동 방법을 제어하게 된다.


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    Title :

    ELECTRO HYDRAULIC POWER UNIT OF HYDRAULIC BRAKE SYSTEM


    Additional title:

    유압 제동 시스템용 전기 유압 동력 장치


    Contributors:

    Publication date :

    2015-12-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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