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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2007  >  7(6): 36-40
ZHANG Wei-gang, ZHANG Wei-feng, REN Wei-jun, BIAN Yao-zhang. Pulse control measure methods of internal resistance for battery in electric vehicle[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 36-40.
Citation: ZHANG Wei-gang, ZHANG Wei-feng, REN Wei-jun, BIAN Yao-zhang. Pulse control measure methods of internal resistance for battery in electric vehicle[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 36-40.
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Pulse control measure methods of internal resistance for battery in electric vehicle

  • 1.

    School of Information Engineering, Chang'an University, Xi'an 710064, Shaanxi, China

  • 2.

    School of Automobile, Chang'an University, Xi'an 710064, Shaanxi, China

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  • Author Bio:

    Zhang Wei-gang(1960-), male, EngD, professor, +86-29-82334547, wgzhang@chd.edu.cn

  • Received Date: 2007-06-19
  • Publish Date: 2007-12-25
    Abstract
  • In order to estimate the health state of battery and calculate the running distance of electric vehicle (EV), two pulse control measure methods were put forward to for the online test of internal resistance for battery.Measure circuit and battery were insulated by using optical coupling set and transformer, a series of pluses were put out by microcomputer unit (MCU), constant current signal was generated by battery controlled by optical coupling set, voltage signal caused by current signal in the internal resistance was sent to MCU through transformer, and MCU could calculate the internal resistance according to the phase difference between voltage and current (method 1) or voltage difference (method 2).Computation result shows that the errors of internal resistance for a 12V lead-acid battery are about 13% and 11% respectively calculated by using method 1 and method 2, the errors are less, so two pulse control methods are feasible.

     

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