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    A Combined High-Efficiency Region Controller to Improve Fuel Consumption of Power-Split HEVs

    241571_IEEE 2016.pdf (1.334Mb)
    Access Status
    Open access
    Authors
    Overington, S.
    Rajakaruna, Sumedha
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Overington, S. and Rajakaruna, S. 2016. A Combined High-Efficiency Region Controller to Improve Fuel Consumption of Power-Split HEVs. IEEE Transactions on Vehicular Technology. 65 (6): pp. 4597-4607.
    Source Title
    IEEE Transactions on Vehicular Technology
    DOI
    10.1109/TVT.2016.2543505
    ISSN
    0018-9545
    School
    Department of Electrical and Computer Engineering
    Remarks

    Copyright © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    URI
    http://hdl.handle.net/20.500.11937/39619
    Collection
    • Curtin Research Publications
    Abstract

    An improved controller for the energy management system of a power-split hybrid electric vehicle (HEV) is developed with the objectives of minimizing fuel consumption and improving drivability. Considering the specific application of vehicles plying on scheduled trips such as public transport, this paper assumes that the controller is privileged with a priori knowledge of the estimated total tractive energy requirement and the duration of the journey. In comparison to a recently introduced constant high-efficiency region (CHER)-based controller, this paper demonstrates that further reductions in fuel consumption can be achieved under certain driving cycles by limiting the internal-combustion-engine (ICE) operation to a dynamically varying high-efficiency region and adopting state-of-charge (SOC) swing control for battery energy storage. The frequency of engine on/off is therefore directly decided by the size of the energy storage, allowable swing of the SOC, and the tractive energy required. Performances of the CHER and dynamic high-efficiency region (DHER) controllers are compared through simulations against the existing controller of a commercial vehicle. The results reveal that the DHER controller outperforms the other two controllers in terms of fuel consumption in highway-style-driving scenarios. Therefore, to minimize fuel consumption while improving drivability under all driving scenarios, this paper proposes to combine the CHER controller with the DHER controller such that the best features of both controllers can be utilized.

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