A motor drive circuit comprises a motor having a plurality of phases, a switching circuit comprising a plurality of electrical switches, a motor current controller that generates voltage demand signals to be passed to a drive circuit for the switches that in turn generate pulse width modulated switching signals for the switching circuit that cause the switches to selectively connect the phases to a power supply so as to cause current to flow through the phases of the motor, and a motor torque controller that produces a demand signal that is fed to an input of the current controller, the motor current controller responding to an error signal that is at least partially dependent on the value of the demand signal. The torque controller in use updates the demand signal at a first sample rate. The motor drive circuit further comprises a downsampling circuit that in use modifies the demand signal under certain operating conditions so that the demand signal is only updated at a second sample rate that is lower than the first rate.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    MOTOR CONTROL FOR ELECTRIC POWER ASSISTED STEERING SYSTEMS


    Weitere Titelangaben:

    MOTORSTEUERUNG FÜR EINE ELEKTRISCHE SERVOLENKUNGSSTEUERUNG
    COMMANDE DE MOTEUR POUR UNITE DE COMMANDE ELECTRIQUE DE DISPOSITIF DE DIRECTION


    Beteiligte:
    PRAHLAD NIKHIL (Autor:in)

    Erscheinungsdatum :

    05.06.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge



    Motor control for electric power assisted steering systems

    PRAHLAD NIKHIL | Europäisches Patentamt | 2016

    Freier Zugriff

    MOTOR CONTROL FOR ELECTRIC POWER ASSISTED STEERING SYSTEMS

    DIXON CHRISTOPHER DAVID | Europäisches Patentamt | 2021

    Freier Zugriff

    Motor control for electric power assisted steering systems

    DIXON CHRISTOPHER DAVID | Europäisches Patentamt | 2015

    Freier Zugriff

    Double-motor electric power-assisted steering system and power-assisted steering method thereof

    LI YAOHUA / ZHAO WENLIANG / JIAO SEN | Europäisches Patentamt | 2015

    Freier Zugriff

    Double-motor electric power-assisted steering system and power-assisted steering method thereof

    LI YAOHUA / ZHAO WENLIANG / JIAO SEN | Europäisches Patentamt | 2015

    Freier Zugriff