This paper describes a methodology to estimate longitudinal velocity of a 4-wheel-drive electric vehicle, in which wheel driven torque can be independently controlled by electric motor. Without non-driven wheels it would be difficult to estimate the vehicle longitudinal velocity precisely, especially when all of four wheels have large slip ratio. Therefore, an estimation methodology based on fuzzy logic is put forward, which uses four wheel speed and longitudinal acceleration as input signals. However, this method works not very well when two or more wheels have large slip ratio. In order to improve estimation effect, a state variable filter is designed to calculate wheel acceleration signals, which are used as additional signals to the fuzzy logic observer. Furthermore, the possibility of using four wheel driving torque signals to improve the estimation precision is also discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Longitudinal Velocity Estimation of Electric Vehicle with 4 In-wheel Motors


    Additional title:

    Sae Technical Papers


    Contributors:
    Xu, Tifan (author) / Gao, Xiaojie (author) / Yu, Zhuoping (author)

    Conference:

    SAE World Congress & Exhibition ; 2008



    Publication date :

    2008-04-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Longitudinal velocity estimation of electric vehicle with four in-wheel motors

    Gao,X. / Yu,Z. / Xu,T. et al. | Automotive engineering | 2008


    Longitudinal Velocity Estimation of Electric Vehicle with 4 In-wheel Motors

    Gao, X. / Yu, Z. / Xu, T. et al. | British Library Conference Proceedings | 2008


    2008-01-0605 Longitudinal Velocity Estimation of Electric Vehicle with 4 In-wheel Motors

    Gao, X. / Yu, Z. / Xu, T. et al. | British Library Conference Proceedings | 2008


    Reduction of Longitudinal Vehicle Vibration Using In-Wheel Motors

    Fukudome, Hideki | SAE Technical Papers | 2016


    Reduction of Longitudinal Vehicle Vibration Using In-Wheel Motors

    Fukudome, Hideki | British Library Conference Proceedings | 2016