In this work, a short preview of traffic provided by on-board sensors is used to minimize fuel consumption in a parallel hybrid vehicle capable of controlling both the vehicle velocity and the torque-split ratio. A two-stage version of Pontryagin’s minimum principle was used, but some of the standard simplifying assumptions in reduced-order modelling of hybrid vehicles were avoided to ensure that the fuel economy is not unduly compromised. The proposed controller is implemented in a receding-horizon fashion to incorporate updated telemetry information at each sampling instant. The effectiveness of the proposed method is demonstrated by simulations on two hybrid vehicle models containing higher-order dynamics and non-linearities. It is shown that the controller maintains the engine operation within the high-engine-efficiency region, and successive improvements in the fuel economy are achieved as the traffic preview length is increased.


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    Title :

    Optimal control of a parallel hybrid vehicle with a traffic preview


    Contributors:


    Publication date :

    2014-06-01


    Size :

    15 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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