The present invention relates to a noise reduction system of a differential gear and a noise reduction method thereof. A noise reduction controller of the differential gear of a vehicle of the present invention comprises: a differential assembly including a ring gear engaged with a motor reducer, a differential case connected to the ring gear, and a differential gear provided at the interior of the differential case; and a disconnector device connected to at least one of the differential gears. A vehicle controller according to a preferred embodiment of the present invention comprises: an RPM measurement unit measuring a speed of one side vehicle wheel when driving two wheels of the vehicle; a speed calculation unit configured to calculate a speed of the ring gear in consideration of the speed of the one side vehicle wheel; and a driving unit driving the ring gear by controlling the motor reducer based on the speed of the ring gear. An objective of the present invention is to provide the vehicle controller reducing a differential noise generated due to rotation and backlash of the differential gear when driving the two wheels of the vehicle, and the noise reduction method of the differential gear.

    본 발명의 바람직한 실시예에 따른 차량 제어기는, 모터 감속기에 치합하는 링 기어, 상기 링 기어에 연결되는 디퍼렌셜 케이스와, 상기 디퍼렌셜 케이스의 내부에 구비되는 차동 기어를 포함하는 디퍼렌셜 조립체, 및 상기 차동 기어 중에서 적어도 하나의 기어에 연결되는 디스커넥터 장치를 포함하는 차량의 차동 기어의 소음 저감 제어기에 있어서, 차량의 2륜 구동시, 일측 차량 바퀴의 속도를 측정하는 RPM 측정부, 상기 일측 차량 바퀴의 속도를 고려하여 상기 링 기어의 속도를 계산하는 속도 계산부, 및 상기 링 기어의 속도를 기초로 상기 모터 감속기를 제어하여 상기 링 기어를 구동하는 구동부를 포함한다.


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    Title :

    VEHICLE CONTROLLER AND NOISE REDUCING METHOD OF DIFFERENTIAL GEAR


    Additional title:

    차동 기어의 소음 저감 시스템 및 그것의 소음 저감 방법


    Contributors:
    AHN JONG BAE (author) / KIM YOUNG KYU (author) / KIM YEON HO (author)

    Publication date :

    2023-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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