A rotary system includes a rotor, a vector-based position sensor, and a controller executing a method to eliminate fundamental harmonic position measurement error. The sensor measures angular position of the rotor and outputs raw sine and cosine signals representative of the angular position. The raw signals have a fundamental harmonic position measurement error at the frequency of the sensor signals. The controller receives the raw signals, adaptively adds or subtracts sensor signal offsets to or from the raw signals to generate offset sine and cosine signals, calculates a corrected position of the rotor using the offset sine and cosine signals eliminating the fundamental error, and controls an action or state of the rotary system using the corrected position. The rotor may be part of an electric machine, such as in a vehicle.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Elimination of fundamental harmonic position measurement errors in a vector-based position sensing system


    Beteiligte:
    SECREST CALEB W (Autor:in) / OCHS DAVID S (Autor:in)

    Erscheinungsdatum :

    2020-06-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



    ELIMINATION OF FUNDAMENTAL HARMONIC POSITION MEASUREMENT ERRORS IN A VECTOR-BASED POSITION SENSING SYSTEM

    SECREST CALEB W / OCHS DAVID S | Europäisches Patentamt | 2019

    Freier Zugriff

    DETECTING POSITION MEASUREMENT ERRORS IN AN ELECTRIC MOTOR SYSTEM

    CAMPBELL MENGWEI / DANG JIE | Europäisches Patentamt | 2017

    Freier Zugriff

    DETECTING POSITION MEASUREMENT ERRORS IN AN ELECTRIC MOTOR SYSTEM

    CAMPBELL MENGWEI / DANG JIE | Europäisches Patentamt | 2017

    Freier Zugriff


    POSITION MEASUREMENT DEVICE, POSITION MEASUREMENT METHOD, PROGRAM, AND POSITION MEASUREMENT SYSTEM

    TO SOKA / OBANA SADAO / YAMASHITA RYO | Europäisches Patentamt | 2016

    Freier Zugriff