The present invention relates to a vehicle wheel speed estimation apparatus. The objective of the present invention is to provide the vehicle wheel speed estimation apparatus capable of solving issues of a common wheel speed sensor such as a lack of rotation direction information, a resolution deterioration in a low-speed section and the like and obtaining more accurate wheel speed information in an update cycle shorter than when only the wheel speed sensor is used, and a method thereof. To achieve the objective, the vehicle wheel speed estimation apparatus includes: a wheel speed sensor detecting a wheel speed; a motor speed sensor detecting the speed of a driving motor; and a controller estimating a wheel speed, to which the directivity of wheel rotation has been applied, by receiving a signal of the wheel speed sensor, a signal of the motor speed sensor, and gear step information indicating the current gear step condition of a transmission.

    본 발명은 차량의 휠 속도 추정 방법에 관한 것으로서, 통상의 휠속 센서가 가지는 저속 구간에서의 해상도 저하 문제와 회전방향 정보 부재 등의 문제를 해결할 수 있고, 휠속 센서만을 이용할 때에 비해 짧은 업데이트 주기로 더욱 정확한 휠 속도 정보가 얻어질 수 있는 차량의 휠 속도 추정 장치 및 방법을 제공하는데 주된 목적이 있는 것이다. 상기한 목적을 달성하기 위해, 휠 속력을 검출하는 휠속 센서; 상기 구동모터의 속도를 검출하는 모터 속도 센서; 상기 휠속 센서의 신호, 상기 모터 속도 센서의 신호, 및 변속기의 현재 기어단 상태를 나타내는 기어단 정보를 입력받아 휠 회전의 방향성이 부여된 휠 속도를 추정하는 제어기를 포함하는 차량의 휠 속도 추정 장치, 및 그 방법이 개시된다.


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    Title :

    System and method for estimating wheel speed of vehicle


    Additional title:

    차량의 휠 속도 추정 장치 및 방법


    Contributors:
    OH JI WON (author) / EO JEONG SOO (author)

    Publication date :

    2020-05-07


    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 / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / 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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