The system properties of mechanical and electrical all-wheel drivelines differ distinctly, so for the design of an electrified four-wheel drive it is not reasonable to design the system to have exactly the same behaviour as a mechanical system. This would lead to an all-wheel drive that is oversized for most customer needs. The better way is to start with the requirements and to design the electrical all-wheel drive according to them. The analysis of the system shows, that the properties regarding traction and vehicle dynamics can be split up in a longitudinal torque distribution for traction and a lateral torque vectoring for vehicle dynamics. This step sets free enormous potential to reduce the power requirements for an electrical all-wheel drive. Despite that, the customer needs on the four-wheel drive can by satisfied. The electrification of the lateral torque split by an electromechanical torque vectoring system offers further potential to achieve a more efficient system. Such a system could be the next evolutionary step in torque vectoring technology, because of even higher precision and response time.


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    Titel :

    quattro with electrical torque distribution


    Beteiligte:
    Wein, Michael (Autor:in) / Schwarz, Ralf (Autor:in) / Meissner, Tim (Autor:in)


    Erscheinungsdatum :

    2011


    Format / Umfang :

    9 Seiten, 5 Bilder, 2 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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