The present invention relates to an integrated control system for a vehicle, which can perform a stable ABS operation and braking force generation of the vehicle even in a braking situation where left and right side friction coefficients (μ) of a road surface are different from each other, thereby securing a stable braking performance and controlling the behavior of the vehicle. To achieve the purpose, the integrated control system for a vehicle comprises: a friction coefficient calculation unit which calculates friction coefficients of left side and right side road surfaces, respectively, based on vehicle wheel state information collected from a vehicle during an anti-lock brake system (ABS) operation in driving and pre-stored setting information; a feedforward braking pressure calculation unit which calculates a feedforward braking pressure of each vehicle wheel by using the friction coefficients of the left side and right side road surfaces, which are calculated by the friction coefficient calculation unit; an ABS braking pressure calculation unit which calculates an ABS braking pressure of each vehicle wheel based on the feedforward braking pressure calculated by the friction coefficient calculation unit and slip rate information of the vehicle wheel; a rear wheel steering control amount calculation unit which calculates a rear wheel steering control amount for yaw compensation by using the ABS braking pressure of each vehicle wheel, which is calculated by the ABS braking pressure calculation unit; and a rear wheel steering control unit which executes a rear wheel steering control of the vehicle according to the rear wheel steering control amount calculated by the rear wheel steering control amount calculation unit.

    본 발명은 차량의 통합 제어 장치에 관한 것으로서, 좌, 우측 노면의 마찰계수(μ)가 상이한 제동 상황에서도 차량의 안정적인 ABS 작동 및 제동력 생성이 가능하고, 그에 따른 차량의 안정적인 제동 성능 확보와 차량 거동 제어가 가능해지는 차량의 통합 제어 장치를 제공하는데 주된 목적이 있는 것이다. 상기한 목적을 달성하기 위해, 주행 중 ABS(Anti-Lock Brake System) 작동 시 차량에서 수집되는 차량 휠 상태 정보와 기 저장된 설정 정보에 기초하여 좌측 노면의 마찰계수와 우측 노면의 마찰계수를 각각 산출하는 마찰계수 산출부; 마찰계수 산출부에서 산출된 좌측 노면 및 우측 노면의 마찰계수를 이용하여 각 차량 휠의 피드포워드 제동압을 산출하는 피드포워드 제동압 산출부; 피드포워드 제동압 산출부에서 산출된 피드포워드 제동압과 차량 휠의 슬립율 정보에 기초하여 각 차량 휠의 ABS 제동압을 산출하는 ABS 제동압 산출부; ABS 제동압 산출부에서 산출된 각 차량 휠의 ABS 제동압을 이용하여 요 보상을 위한 후륜 조향 제어량을 산출하는 후륜 조향 제어량 산출부; 및 후륜 조향 제어량 산출부에서 산출된 후륜 조향 제어량에 따라 차량의 후륜 조향 제어를 수행하는 후륜 조향 제어부를 포함하는 차량의 통합 제어 장치가 개시된다.


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    Title :

    Integrated control system for vehicle


    Additional title:

    차량의 통합 제어 장치


    Contributors:
    CHO WAN KI (author)

    Publication date :

    2020-05-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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