A method for controlling an electric drive unit (EDU) having a motor-driven torque converter includes receiving a request signal indicative of a requested output torque of the EDU, and operating the motor at a target motor speed using the requested output torque. The target motor speed minimizes system losses while achieving the requested output torque. When the requested output torque remains below a calibrated threshold and a turbine speed is less than a corner speed of the motor, a torque converter clutch (TCC) transitions to or remains in a locked state. The controller commands the TCC to transition to an unlocked state to reach the target motor speed, thereby selectively enabling torque multiplication. A powertrain system includes a driven load and the EDU. A computer readable storage medium may include executable instructions for performing the method.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    MOTOR AND TORQUE CONVERTER CLUTCH CONTROL STRATEGY FOR ELECTRIC DRIVE UNIT HAVING MOTOR-DRIVEN TORQUE CONVERTER


    Beteiligte:
    BUCKNOR NORMAN K (Autor:in) / LEE CHUNHAO J (Autor:in) / LI DONGXU (Autor:in) / HAO LEI (Autor:in) / DUAN CHENGWU (Autor:in)

    Erscheinungsdatum :

    2023-06-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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 / F16H Getriebe , GEARING



    Motor and torque converter clutch control strategy for electric drive unit having motor-driven torque converter

    BUCKNOR NORMAN K / LI JUNHAO / LI DONGXU et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Motor and torque converter clutch control strategy for electric drive unit having motor-driven torque converter

    BUCKNOR NORMAN K / LEE CHUNHAO J / LI DONGXU et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Centrifugal torque converter clutch

    Silberschlag,R. / Borg-Warner,US | Kraftfahrwesen | 1984


    Centrifugal Torque Converter Clutch

    Silberschlag, Russell | SAE Technical Papers | 1984


    Torque converter and drive unit

    MATSUOKA YOSHIHIRO | Europäisches Patentamt | 2023

    Freier Zugriff