The traditional twelve-volt automotive system is already being strained by luxury add-ins and with the coming inclusion of the next generation powertrain systems, it is now apparent that the electrical system has to provide more power than a twelve-volt system could ever economically supply. The advances in HCCI and SI engine technology will lead to direct injection, Variable Valve Actuation & Control, variable compression technology and CVT transmissions that require much more electrical energy than the current alternator can supply.The hybrid vehicle and the drive towards fuel cell vehicles will enable a series of other exciting options to the automotive digital design engineer. The enablement of new hybrid powertrain solutions, x-by wire, Digital Electro-Mechanical Brake (EMB) and electric power assisted steering systems that a 42 volt electrical system becomes a clear next generation choice for many automotive OEM's. The electrical systems that are enabled by hybrid powertrain vehicles brings new system partitioning options along with new challenges.


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    Title :

    Shifting to 42 Volt Hybrid Systems


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2004 Powertrain & Fluid Systems Conference & Exhibition ; 2004



    Publication date :

    2004-10-25




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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