A wiper drive device is provided with: a line (37, 47) connected to a wiper motor (100); a driving element (39, 49) configured to apply a voltage to the wiper motor via the line by being turned on to rotate the wiper motor; a braking element (57) configured to brake the wiper motor by being turned on when the driving element is turned off so as to flow an electric current corresponding to rotational energy of the wiper motor; and a determination unit (60) configured to determine that the brake element is abnormal when a time period from when the wiper motor is braked to when a potential (VLo, VHi) of the line becomes equal to or less than a predetermined threshold potential (VLoth, VHith) is longer than a predetermined value, the predetermined value being a time period when the brake element is normal.

    一种刮水器驱动装置,包括:线路(37,47),该线路与刮水器电机(100)连接;驱动元件(39,49),该驱动元件被配置为通过被接通而经由线路向刮水器电机施加电压,以使刮水器电机旋转;制动元件(57),该制动元件被配置为在驱动元件断开时通过被接通而对刮水器电机进行制动,以使对应于刮水器电机的转动能对应的电流流动;以及确定单元(60),该确定单元被配置为在从刮水器电机被制动时到线路的电位(V_Lo,V_Hi)变得等于或小于预定阈值电位(V_Lo_th,V_Hi_th)时的时间段长于预定值时,确定制动元件异常,该预定值为制动元件正常时的时间段。


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    Title :

    Wiper drive device


    Additional title:

    刮水器驱动装置


    Contributors:

    Publication date :

    2023-08-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / 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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