The requirements of passenger cars regarding driving fun and comfort are continuously growing. In spite of this fact the emissions, especially CO2, have to be further reduced. The currently ongoing discussion an the European Union's plan to force the industry towards 130 g/km by 2012 make this clear. Hybridization is one of most effective measures to reach challenging emission and consumption targets. In order to show Siemens VDO's portfolio for hybrid components 'at work' and integration capabilities the hybrid development team at Siemens VDO decided to build a state of the art full hybrid vehicle. The idea: combine driving fun with high fuel economy. The result: an uncompromised sport coupe with excellent driving features. This powertrain configuration supports a high potential for fuel consumption reduction as well spontaneous and crisp driving behavior. One of the challenges is to design an electric drive system that performs in extreme situations like steep grades with multiple stop start sequences. For the Sport Coupe Prototype we found a solution that promises to work well. The potential in fuel savings of 35 % (simulated under best conditions) is great and benefits from omitting the T/Q and the high efficiency of the electric drive including the battery. Emission treatments in the drive strategy sacrifice up to 5 % in savings but keep the emission limits. The system can thus be transferred to other vehicle platforms like transversal engine, small mid or large sedans. Even SUVs are possible, the weight to torque ratio has to finely balance and the serial hybrid mode needs to be adapted to cooling and battery capacity. By coupling the Traction Energy Management TREM to the navigation system and other advanced vehicle functions the fuel economy and driving performance of the hybrid can further be improved in future.


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    Title :

    Electric drive C omponents for a fuel-efficient fun-to-drive full hybrid


    Contributors:


    Publication date :

    2007


    Size :

    14 Seiten, 14 Bilder



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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