Online Measurement of Battery Impedance Using Motor Controller Excitation

  title={Online Measurement of Battery Impedance Using Motor Controller Excitation},
  author={David A. Howey and Paul D. Mitcheson and Vladimir Yufit and Gregory J. Offer and Nigel P. Brandon},
  journal={IEEE Transactions on Vehicular Technology},
This paper presents a fast cost-effective technique for the measurement of battery impedance online in an application such as an electric or hybrid vehicle. Impedance measurements on lithium-ion batteries between 1 Hz and 2 kHz give information about the electrochemical reactions within a cell, which relates to the state of charge (SOC), internal… CONTINUE READING

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