For a hybrid electric vehicle (HEV) equipped with CVT (Continuously variable transmission), it's an important question in developing vehicle energy management that how to make engine, motor and CVT coordinate well to maximize the overall efficiency of the hybrid system. According to this problem, an energy optimization strategy for a CVT mild HEV is proposed which takes the maximum system efficiency as optimization objective and vehicle speed, accelerator pedal degree and battery SOC as state variables while the motor torque and CVT ratio as control variables. Based on a comprehensive consideration of the driver's actual operation, driving demand and efficiencies of key components, the strategy proposed in this paper realizes the overall efficiency's maximization and gets the optimal output torque of motor and the CVT target ratio under different driving conditions. The energy management strategy based on this optimization is tested by a self-established forward simulation model, showing that compared with the proto vehicle the equivalent 100 km fuel consumption is reduced by 26.4 % under NEDC driving cycle.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Energy Optimization for the Mild Hybrid Electric Vehicle with CVT Under Driving Conditions


    Beteiligte:
    Zheng, Yongxia (Autor:in) / Zhao, Feng (Autor:in) / Luo, Yugong (Autor:in) / Li, Keqiang (Autor:in)


    Erscheinungsdatum :

    2012


    Format / Umfang :

    12 Seiten





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Energy Optimization for the Mild Hybrid Electric Vehicle with CVT Under Driving Conditions

    Zheng, Yongxia / Zhao, Feng / Luo, Yugong et al. | Springer Verlag | 2012


    Energy Optimization for the Mild Hybrid Electric Vehicle with CVT Under Driving Conditions F2012-B02-036

    Zheng, Y. / Zhao, F. / Luo, Y. et al. | British Library Conference Proceedings | 2013


    Energy Optimization for the Mild Hybrid Electric Vehicle with CVT Under Driving Conditions F2012-B02-036

    Zheng, Y. / Zhao, F. / Luo, Y. et al. | British Library Conference Proceedings | 2013


    CONTROL METHOD DRIVING MILD HYBRID ELECTRIC VEHICLE AND APPARATUS THE SAME

    LEE JONG CHAN | Europäisches Patentamt | 2019

    Freier Zugriff