본 발명은 컨트롤러가 엔진 토크와 차량 횡가속도를 고려하여 차량이 현재 주행 중인 노면의 신규마찰계수를 산출하는 마찰계수산출단계와; 상기 컨트롤러가 휠슬립을 고려하여 차량의 안정 상태와 불안정 상태를 구분하는 상태구분단계와; 상기 상태구분단계의 결과를 고려하여 갱신마찰계수를 업데이트하는 갱신단계를 포함하여 구성되고, 상기 상태구분단계에서 차량이 안정 상태인 경우, 상기 갱신단계에서 상기 컨트롤러는 상기 신규마찰계수와 이전마찰계수 중 최대값을 갱신마찰계수로 업데이트 한다.

    The present invention includes: a friction coefficient calculation step in which a controller calculates a new friction coefficient of a road on which a vehicle currently drives in consideration of engine torque and lateral acceleration of the vehicle; a state classification step in which the controller classifies a stable state and an unstable state of the vehicle in consideration of a wheel slip; and an update step of updating an update friction coefficient in consideration of the results of the state classification step. When the vehicle is stable in the state classification step, the controller in the update step updates the maximum value of the new friction coefficient and a previous friction coefficient as an update friction coefficient.


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    Title :

    ESTIMATING METHOD OF FRICTION COEFFICIENT OF ROAD SURFACE FOR VEHICLE


    Additional title:

    차량의 노면 마찰계수 추정방법


    Publication date :

    2023-07-13


    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 / 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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