An active shift control method for a power-off downshift of the hybrid vehicle is provided. The method includes increasing the torque of an engagement clutch in a transmission while disengaging a disengagement clutch by reducing the torque of the disengagement clutch in the transmission, when the shift of a power-off downshift is requested. A motor speed is adjust for a transmission input shaft rotary speed to reach a predetermined target stage synchronization speed of a target stage after shifting, and the torque of the engagement clutch is maintained in a state where the disengagement clutch has been disengaged. The engagement of the engagement clutch is completed by increasing the torque of the engagement clutch when the transmission input shaft rotary speed has reached the target stage synchronization speed.


    Access

    Download


    Export, share and cite



    Title :

    Active shift control method for power-off downshift of hybrid vehicle


    Contributors:
    LEE CHAN HO (author) / EO JEONG SOO (author)

    Publication date :

    2021-08-10


    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 / F16H Getriebe , GEARING



    ACTIVE SHIFT CONTROL METHOD FOR POWER-OFF DOWNSHIFT OF HYBRID VEHICLE

    LEE CHAN HO / EO JEONG SOO | European Patent Office | 2020

    Free access

    - Active shift control method for power-off downshift of hybrid electric vehicle

    LEE CHAN HO / EO JEONG SOO | European Patent Office | 2020

    Free access



    Downshift control method for hybrid DCT vehicle

    CHO SUNG HYUN | European Patent Office | 2019

    Free access