The present invention provides a hydraulic control apparatus of a four wheel driving system and a method thereof. According to the present invention, the hydraulic control apparatus of a four wheel driving system comprises: a voltage measurement unit measuring voltage of a DC motor; a hydraulic pressure sensor measuring hydraulic pressure; and a control unit estimating a temperature of a hydraulic actuator in accordance with consumption voltage by receiving voltage of the DC motor, measured in the voltage measurement unit to calculate the consumption voltage when pre-pressure is maintained, and determining a temperature state by comparing output pressure and target pressure inputted from the hydraulic pressure sensor in accordance with the estimated temperature.

    본 발명은 4륜구동 시스템의 유압 제어장치 및 그 방법이 개시된다. 본 발명의 4륜구동 시스템의 유압 제어장치는, DC모터의 전압을 측정하는 전압측정부; 유압을 측정하는 유압센서; 및 전압측정부에서 측정한 DC모터의 전압을 입력받아 예압유지시 소모전압을 연산하여 소모전압에 따른 유압 액추에이터의 온도를 추정하고, 추정온도에 따라 유압센서로부터 입력된 출력압력과 목표압력을 비교하여 온도상태를 판단하는 제어부;를 포함하는 것을 특징으로 한다.


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    Title :

    4 HYDRAULIC CONTROL APPARATUS OF FOUR WHEEL DRIVING SYSTEM AND METHOD THEREOF


    Additional title:

    4륜구동 시스템의 유압 제어장치 및 그 방법


    Contributors:

    Publication date :

    2019-01-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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