This paper presents a practical approach using disturbance observer (DOB)-based longitudinal vehicle speed control in hybrid electric vehicles (HEVs). Speed control law is derived from a linearized nominal plant model obtained assuming that the vehicle is a lumped mass. The plant uncertainty and external disturbance are lumped into a disturbance term and compensated for by the DOB. In addition, a feedforward term is designed to improve tracking performance when a target trajectory varies during acceleration and deceleration. The proposed control algorithm is validated by simulations. Vehicle experiments are performed on C-segment HEVs and D-segment plug-in HEVs. The validation results from both simulations and vehicle experiments, comparing a proportional-integral (PI) controller, show that the proposed controller is more robust to model uncertainty and external disturbance.


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    Titel :

    Robust Vehicle Speed Control Using Disturbance Observer in Hybrid Electric Vehicles


    Weitere Titelangaben:

    Int.J Automot. Technol.


    Beteiligte:
    Kim, Sangjoon (Autor:in) / Bang, Jae Sung (Autor:in) / Kim, Sungdeok (Autor:in) / Lee, Hyeongcheol (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2020-08-01


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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