Till 1980 Four-Wheel-Drive (4WD) was almost exclusively used for off road vehicles. Today nearly every European or Japanese vehicle manufacturer has in his product program a passenger car with 4WD. The systems used reach from a manual engagement of the second axle to a computer controlled power train. The purpose of this paper is, to elaborate on the most important differences of the available 4WD systems especially regarding the torque split. Emphasis is laid on the application of the viscous unit for torque transfer and torque control. New calculation methods confirm test results, proving that a vehicle using a viscous coupling for torque transfer has, indeed, permanent 4WD.


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    Titel :

    Permanent and part-time four wheel drive and typical tractive force distribution


    Weitere Titelangaben:

    Permanenter und zeitweiser Vierradantrieb und typische Zugkraftverteilung


    Beteiligte:
    Lanzer, H. (Autor:in)

    Erschienen in:

    SAE-Papers ; Sep ; 1-11


    Erscheinungsdatum :

    1986


    Format / Umfang :

    11 Seiten, 14 Bilder, 2 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Permanent and Part-Time Four Wheel Drive and Typical Tractive Force Distribution

    Lanzer,H. / Steyr-Daimler-Puch,AT | Kraftfahrwesen | 1986


    Tractive performance analysis of part-time four-wheel-drive vehicle

    Nishikura, S. / Usui, H. / Takematsu, K. | Tema Archiv | 1981


    Tractive Performance Analysis of Part-Time Four-Wheel-Drive Vehicle

    Nishikura,S. / Usui,H. / Takematsu,K. et al. | Kraftfahrwesen | 1981


    Optimizing Tractive Performance of Four-Wheel-Drive Tractors - Theory and Practice

    Wong, J. Y. / McLaughlin, N. B. / Zhao, Z. et al. | British Library Conference Proceedings | 1999