This paper present an overview of the design and development of an engine specially for the use as a range extender. A previous study investigating the requirements for a range extender engine suitable for a C-segment E-REV found that approximately 30 kW is required for such an application. A detailed design investigation has culminated in the design of a 0,9 litre, 2-cylinder, 4-stroke gasoline engine, where attention has been paid to minimising the engine package volume, weight and projected production cost. To enable maximum installation flexibility the engine can be installed either vertically or horizontally mounted. The engine features some novel design aspects, such as the offset camshaft and an inlet system tucked completely under an overhanging cylinder head. The fully integrated generator which is directly mounted onto the crankshaft also helps to minimise the package volume of the combined unit. Although efficiency has not been identified as a key requirement, attention has also been paid to the minimisation of parasitic losses, with a view to maximise the resulting efficiency of the engine. Initial test results from the engine have been obtained and the engine meets the power targets set. The likely CO2 emissions performance of an E-REV using this engine has been assessed based an real world usage patterns. It has been found that if the vehicle is charged nightly the CO2 savings can be up to 100 % and that even if the E-REV is never recharged, the savings can still be as high as 50 %, given the right usage patterns.


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    Titel :

    Design and development of the MAHLE range extender engine


    Beteiligte:
    Warth, Marco (Autor:in) / Bassett, Michael (Autor:in) / Hall, Jonathan (Autor:in) / Korte, Volker (Autor:in) / Mahr, Bernd (Autor:in)


    Erscheinungsdatum :

    2011


    Format / Umfang :

    25 Seiten, 17 Bilder, 3 Tabellen, 15 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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