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International journal of automotive technology v.11 no.4, 2010년, pp.593 - 600   SCIE
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DEVELOPMENT OF AN ELECTRIC MOTOR-DRIVEN PUMP UNIT FOR ELECTRO-HYDRAULIC POWER STEERING WITH 42V POWER-NET

Hur, J.    (School of Electrical Engineering, University of Ulsan  );
  • 초록

    Motorization in vehicles is expanding rapidly for fuel efficiency, customer comfort, convenience, and safety features. These new electric loads represent an increase in the required electric power. This has generated interest in new, higher power systems such as the 42V Power Net. The electro-hydraulic power steering (EHPS) system is one of these systems. This paper presents the development of the electric motor-driven pump unit for the EHPS system using a 42V power-Net. The interior type permanent magnet synchronous motor (IPMSM) can be applied to this system with more power density per volume for compactness of the EHPS. In order to improve the system, the IPMSM and its control method was optimized for improved torque characteristics and electric power consumption. The performances of both the pump unit and the IPMSM have been verified by experimental results. Finally, all in one type the electric motor-driven pump unit are developed from the experiment verification.


  • 주제어

    Electric load for automotive .   Motorization .   42V power net .   Electro-hydraulic power steering (EHPS) .   Interior type permanent magnet synchronous motor (IPMSM) .   Optimization .   Cogging torque.  

  • 참고문헌 (8)

    1. Bianchi, N., Dai Pre, M. and Bolognani, S. (2006). Design of a fault-tolerant IPM motor for electric power steering. IEEE Trans. Vehicular Technology 55, 4, 1102?1111. 
    2. Eki, H., Teratani, T. and Iwasaki, T. (2007). Power consumption and conversion of eps systems. Power Conversion Conf. 2007 (PCC07), 1333?1339. 
    3. Fernandez-Bernal, F., Garcia-Cerrada, A. and Faure, R. (2000). Model-based loss minimization for DC and AC vector-controlled motors including core saturation. IEEE Trans. Industry Applications 36, 3, 755?763. 
    4. Hur, J. (2008). Characteristic analysis of interior permanentmagnet synchronous motor in electrohydraulic power steering systems. IEEE Trans. Industrial Electronics 55, 6, 2316?2323. 
    5. Kim, S. I., Bhan, J. H., Hong, J. P. and Lim, K. C. (2006). Optimization technique for improving torque performance of concentrated winding interior PM synchronous motor with wide speed range. Proc. IEEE IAS Annual Meeting, 4, 1933?1940. 
    6. Lee, J. Y., Lee, S. H., Lee, G. H., Hong, J. P. and Hur, J. (2006). Determination of parameters considering magnetic nonlinearity in an interior permanent magnet synchronous motor. IEEE Trans. Magn. 42, 4, 1303?1306. 
    7. Nakamura, K., Saito, K. and Ichinokura, O. (2003). Dynamic analysis of interior permanent magnet motor based on a magnetic circuit model. IEEE Trans. Magn. 39, 5, 3250? 3252. 
    8. Sebastian, T., Islam, M. S. and Mir, S. (2005). Application of permanent magnet synchronous machines in automotive steering systems. KIEE Trans. Electrical Machinery and Energy Conversion Systems 5-B, 2, 111?117. 

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