To suppress disturbance of control due to fluctuation in a blade load and stabilize wiping movement of a wiper blade near an inversion position in a vehicle wiper device. An electric motor is subjected to PWM duty control based on a target speed (tgt spd) set according to a position of a wiper blade. After a deceleration start position of wiping operation, the electric motor is driven at a PWM duty value (sld sta duty × Ksd) obtained by multiplying a PWM duty value (sld sta duty) at the deceleration start position by a predetermined deceleration coefficient (Ksd) set according to the blade position. The deceleration coefficient (Ksd) is set according to the position of the wiper blade based on a ratio (tgt spd/pek tgt spd) between the target speed (pek tgt spd) of the wiper blade at the start of deceleration and the target speed (tgt spd) of the wiper blade.


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    Title :

    WIPER CONTROL METHOD AND WIPER CONTROL DEVICE


    Additional title:

    WISCHERSTEUERUNGSVERFAHREN UND WISCHERSTEUERUNGSVORRICHTUNG
    PROCÉDÉ DE COMMANDE D'ESSUIE-GLACE ET DISPOSITIF DE COMMANDE D'ESSUIE-GLACE


    Contributors:

    Publication date :

    2020-05-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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



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