Advances in electric motors, power electronics and control methods are mainly responsible for the fast growth of electric power steering systems as replacements for hydraulic based systems. The introduction of high energy neodymium magnets in the early 1980's gave m,otor designers opportunities to design smaller size, smaller weight and higher performance motors with enhanced the commercial viability of electric power steering systems. With a 12 V power system and limited available power, these high efficiency motors also increased the steering load capabilities. However, with large steering loads, roughly above 10,000 N rack force, the limitations of the 12 V system become apparent. At such large loads, the resistive voltage drops across the different circuit components have a greater influence on the motor design, than the power dissipation capability of the motor. Under these circumstances, a 42 V power system becomes very attractive in the design of the steering motor, both from the cost and size perspective. This paper will address the design considerations of electric motors for electric power steering application, with a 42 V power system in the automobile. Motor requirements, sizing, packaging and thermal issues and other critical design issues of such motors will also be discussed. The paper will also compare various parameters of a 12 V motor design to that of a 42 V motor design for light and heavy steering loads.


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    Titel :

    Implications of 42V battery power on the design of motors for electric power steering system


    Weitere Titelangaben:

    Auswirkungen einer 42 V - Batterie auf die Auslegung von Motoren für elektrische Steuerungssysteme


    Beteiligte:
    Murthy, S. (Autor:in) / Sebastian, T. (Autor:in) / Liu, B. (Autor:in)


    Erscheinungsdatum :

    2000


    Format / Umfang :

    5 Seiten, 5 Bilder, 3 Tabellen, 9 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Implications of 42V Battery Power on the Design of Motors for Electric Power Steering System

    Liu, Buyun / Murthy, Sunil / Sebastian, Tomy | SAE Technical Papers | 2000


    Implications of 42 V battery power on the design of motors for electric power steering system

    Murthy,S. / Sebastian,T. / Liu,B. et al. | Kraftfahrwesen | 2000


    2000-00-3068 Implications of 42V Battery Power on the Design of Motors for Electric Power Steering System

    Murthy, S. / Sebastian, T. / Liu, B. et al. | British Library Conference Proceedings | 2000


    Design Considerations of Drive Motors for Electric Power Steering

    Badawy, A. / Liu, B. / Murthy, S. et al. | British Library Conference Proceedings | 1999


    Design considerations of drive motors for electric power steering

    Badawy,A. / Liu,B. / Murthy,S. et al. | Kraftfahrwesen | 1999