A motor control system for an electric vehicle has a brushless DC motor. An electronic system for controlling the motor includes a main electrical supply device for supplying power half-bridges for supplying phases of the motor and provided with upper arms, which are equipped with first electronic switches, and lower arms, which are equipped with second electronic switches. A programmable computer controls the first and second electronic switches to implement a first drive mode of the motor, and a second freewheeling mode. A safety circuit produces an emergency braking mode and has third electronic switches for short-circuiting the lower arms of the half-bridges in parallel with the second electronic switches. The third electronic switches are controlled by an additional switching circuit suitable for closing the third switches in order to perform the emergency braking. The additional switching circuit is supplied by a secondary electrical supply device.


    Access

    Download


    Export, share and cite



    Title :

    MOTOR CONTROL SYSTEM WITH ELECTRIC SAFETY BRAKING


    Contributors:

    Publication date :

    2025-05-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Electric control braking system and electric control braking method

    LI HANG / LI JIANQIU / HU JIAYI et al. | European Patent Office | 2020

    Free access

    Motor braking system of pure electric bus, control method and device of motor braking system and medium

    LIN BISHENG / LU JUN / WANG BAIWEI et al. | European Patent Office | 2024

    Free access

    Motor control device and method for electric booster braking system

    CHO BUM RAE | European Patent Office | 2018

    Free access


    ELECTRIC MOTOR CONTROL DEVICE AND ELECTRIC BRAKING DEVICE FOR VEHICLE

    SOMEYA MOEKO | European Patent Office | 2024

    Free access