Disclosed is a motor control method for an electric-powered vehicle (1), which is designed to switch an output characteristic of an electric motor (5) for rotatably driving a driving wheel (16) of the vehicle (1), between a low-speed mode adaptable to a relatively low rotation speed operation region and a high-speed mode adaptable to a relatively high rotation speed operation region, on the basis of a given switching rotation speed (Nt) as a threshold. The motor control method comprises a vehicle-turning information acquisition step (S1, S2) of acquiring information about a turning movement of the vehicle (1), a vehicle-turning determination step (S5, S9, S14, S18) of determining whether the vehicle (1) is in a non-straight-ahead traveling state, based on the information acquired in the vchicle-turning information acquisition step, and a shift step (S6, S10, S15, S19) of, if the determination in the vehicle-turning determination step is made that the vehicle is in the non-straight-ahead traveling state, shifting the switching rotation speed (Nt) to a value different from that in a straight-ahead traveling state of the vehicle. The motor control method of the present invention can prevent a behavior of the vehicle (1) from becoming unstable when the output characteristic of the electric motor (5) for rotatably driving the driving wheel (16) is switched between the low-speed mode and the high-speed mode.


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    Title :

    Motor control method for electric-powered vehicle and driving apparatus for electric-powered vehicle


    Additional title:

    Motorsteuerung für ein elektrisch angetriebenes Fahrzeug und Antriebsvorrichtung für ein elektrisch angetriebenes Fahrzeug
    Procédé de commande de moteur pour véhicule électrique et appareil de commande pour véhicule électrique


    Contributors:

    Publication date :

    2017-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F16H Getriebe , GEARING



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