A study was carried out to identify and analyse the possible fuel economy improvements in the European passenger cars. A compliance with the today (1975) European exhaust emissions regulation and undiminished performance in comparison with the 1974 vehicles were the main constraints within the study was conducted. Hardware which can be in production by 1980-85 was considered. A statistical analysis on 68 European sedan cars was carried out to characterize the 1974 vehicles. Some possible improvements were identified. A reference vehicle was selected and a fuel consumption prediction technique suitable for computer calculation was developed to evaluate fuel consumption and performance with and without incorporation of the possible improvements. Combinations of the individual improvements were chosen and applied to the reference vehicle; the corresponding fuel consumption gains were estimated. Within the constraints of the study 14 to 18 % fuel consumption improvements were predicted for improved vehicles powered by improved gasoline engines or by high specif power gasoline engines. Only if poorer performance was accepted a 23 to 27 % fuel consumption gain could be achieved by improved vehicles powered by a direct injection Stratified Charge Engine. (Beerstecher)


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    Title :

    Possible advances in european passenger cars fuel economy


    Additional title:

    Moegliche Fortschritte bei der Kraftstoffausnutzung europaeischer Personenkraftwagen


    Contributors:


    Publication date :

    1977


    Size :

    10 Seiten, 11 Bilder, 4 Tabellen, 4 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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