Study on Engine Idle Speed Control Considering Vehicle Power Balance

  • Feng Gao
  • Qiang Zhang
  • Daquan Zhang
  • Wen He
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 200)


By analyzing the characteristics of a battery discharge, a new power balance automatic control strategy at idle condition was designed. The feedback signal of electric power load is cancelled and the battery state is estimated only by voltage. Furthermore, application problems, such as integration with the normal engine control logic, etc. were studied. By integrating into ECU, the idle power balance automatic control function can be realized without adding any hardware cost. Vehicle test results show that the control logic can modify idle speed automatically and stably according to electrical load power.


Power balance Engine control Idle speed control Electrical load estimation State of charge 


  1. 1.
    Daniel JM, Nad ASD (2006) An method by increasing engine idle speed to allow battery charging. China, CN101008356AGoogle Scholar
  2. 2.
    Mehrdad E, Yimin Gao, Ali E (2010) Modern electric hybrid electric and fuel cell vehicles-fundamentals theory and design. CRC Press, LondonGoogle Scholar
  3. 3.
    BOSCH (2004) Automotive electric and electronic of BOSCH. Beijing Institute of Technology Publishing House, BeijingGoogle Scholar
  4. 4.
    Ribbens WB (1998) Understanding automotive electronics. Butterworth-Heinemann, WoburnGoogle Scholar
  5. 5.
    Zhang Q, Gao F, Hou J (2009) Simulation study of charging balance for vehicle electric power system. Society of Automotive Engineering, Beijing, 2009, pp 463–467Google Scholar
  6. 6.
    Zhang X (2004) Vehicle engine control technology. Industrial Publishing House, BeijingGoogle Scholar
  7. 7.
    Guzzella Lino, Onder CH (2007) Introduction to modeling and control of IC engine system. Springer Press, New YorkGoogle Scholar
  8. 8.
    Li G-Y (2007) Intelligent control and application of matlab in engine control. Electrical Publishing House, BeijingGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Feng Gao
    • 1
  • Qiang Zhang
    • 1
  • Daquan Zhang
    • 1
  • Wen He
    • 1
  1. 1.Automobile Engineering Institute of Changan Automobile LtdChongqingP.R. China

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