×

Method, system and computer-readable media for measuring impedance of an energy storage device

  • US 9,244,130 B2
  • Filed: 04/03/2012
  • Issued: 01/26/2016
  • Est. Priority Date: 12/21/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method of measuring impedance of an energy storage device, comprising:

  • generating an excitation time record comprising a summation of one or more sinusoidal signals with a frequency step factor of octave harmonics therebetween;

    stimulating an energy storage device with the excitation time record;

    during the stimulating, capturing a response time record at a sampling frequency, the response time record indicative of a response of the energy storage device to the excitation time record; and

    rectifying the response time record relative to a sine and a cosine for at least one of the one or more sinusoidal signals to determine at least one of an in-phase component and a quadrature component of an impedance of the energy storage device.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×