This article describes the wide range of potential applications of the viscous coupling, not only as a lock in two and four-wheel drive differentials, but also as an assembly that facilitates low-cost implementation of permanent four-wheel drive vehicles with one directly driven axle. In such systems, the viscous coupling combines the functions of a locked transfer box and/or axle differential in a single component. Operating according to the principle of fluid friction, the coupling represents a differential slip control: the linear to degressive dependence between locking torque and speed difference provides optimized torque distribution. The article also describes a method of calculating the coupling's characteristic in advance. A max.-traction-characteristic is used to determine the coupling's dimensions at the early vehicle design stage. For handling and ABS-compatibility reasons a fine adjustment will be done later on by vehicle testing.


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    Title :

    Application of viscous couplings for traction control in passenger cars


    Additional title:

    Anwendung viskoser Kupplungen zur Antriebskontrolle in Personenwagen


    Contributors:
    Herrmann, G. (author) / Taureg, H. (author)


    Publication date :

    1989


    Size :

    19 Seiten, 22 Bilder


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Application of viscous couplings for traction control in passenger cars

    Taureg,H. / Herrmann,G. / Viscodrive,Lohmar,DE | Automotive engineering | 1988


    Application of viscous couplings for traction control in passenger cars

    Herrmann,G. / Taureg,H. / Viscodrive,DE | Automotive engineering | 1989


    Applications of Viscous Couplings for Traction Control in Passenger Cars

    Herrmann, G. / Taureg, H. | SAE Technical Papers | 1989


    Applications of viscous couplings for traction control in passenger cars

    Taureg,H. / Herrmann,G. / Viscodrive,DE | Automotive engineering | 1989


    FLUID COUPLINGS for PASSENGER CARS

    ELLIOTT KIMBERLY, A. | SAE Technical Papers | 1947