The latest addition to Lotus Engineenng's low carbon vehicle demonstrators is the Lotus Evora 414E. This senes hybrid sports car is capable accelerating from 0-60mph in less than 4.5 seconds, yet produces less than 50g of CO2 per kilometre on the ECE-R101 emissions test. The vehicle showcases new developments in plug-in, rangeextended electric propulsion, new electronic technologies to enhance driver involvement and torque vectoring. The vehicle is equipped with a 35kW normally aspirated Lotus range extender engine and a 300kW, 14kWh battery pack to power the twin-motor driveline. To manage the system energy flow between battery, range-extender system and vehicle loads, an adaptive energy management technique has been developed. The energy management framework is capable of multi-objective optimisation over a variable time horizon Arbitration of power flow is derived by evaluating the instantaneous cost functions for the battery and range extender respectively. The energy manager calculates the average vehicle power demand over a series of trailing time windows and evaluates instantaneous cost functions before determining the feed forward range extender operating point. Details of the energy management module developed for the Lotus 414E are presented in this paper. Implementation methods are discussed to demonstrate operation of the control system.


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    Title :

    Adaptive semi-global energy management for a series hybrid performance vehicle - the Lotus 414E


    Contributors:

    Published in:

    Publication date :

    2012


    Size :

    8 Seiten, 9 Bilder, 1 Tabelle, 8 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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