Converting today's 12V automotive electrical system to tomorrow's 42 PowerNet has benefits for the power train and high power loads and also enables new vehicle functions to be implemented. The most cost-effective 42V architecture is represented by a pure 42V PowerNet. This topology does not require a central, high-power DC/DC converter with 12V buffer battery for operating the vehicle electronics and today's loads. A further advantage is the absence of any major short-circuiting problem between 12V and 42V. The joint activities within this project have led to a number of proposals for realizing future '42V ONLY' cars. The qualification of a demonstrator will ultimately verify the developed design criteria of the electronic modules. This enables 42V modules for the next vehicle generations to be developed and opens the door for the benefits of the 42V PowerNet in vehicles: (1) Due to the power zoning concept, a central high-power DC/DC converter with 12V buffer battery can be omitted. By using an appropriate module architecture and power supply structure, the electronic complexity is reduced and an attractive cost scenario can be provided. (2) Intelligent load drive techniques allow a pure 42V PowerNet to be used by providing solutions for all types of loads. This dramatically reduces development cost and risk. (3) The close cooperation between the project partners not only ensures that the vehicle requirements comply with the electronic specification but that well suited and cost-effective semiconductor components are available. (4) In combination with an intelligent power management strategy, the existing 12V connector system can be re-used in the 42V PowerNet,


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    Titel :

    42V only: the pure 42V PowerNet car


    Weitere Titelangaben:

    Ausschließlich 42V: Das reine 42V PowerNet-Fahrzeug


    Beteiligte:
    Joos, U. (Autor:in) / Käufl, G. (Autor:in) / Graf, A. (Autor:in) / Lauer, V. (Autor:in)


    Erscheinungsdatum :

    2003


    Format / Umfang :

    12 Seiten, 12 Bilder, 1 Tabelle, 2 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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