Title :
Charge measurement circuit for electric vehicle batteries
Author :
Wang, X. ; Stuart, T.
Author_Institution :
H Power Corp., Monroe, NC, USA
fDate :
10/1/2002 12:00:00 AM
Abstract :
Calculating the state of charge (SOC) of an electric vehicle (EV) battery is an inherently error prone process that depends on several variables. However, the accuracy of the required charge flow measurements can be greatly improved by using a voltage to frequency (V/F) converter in conjunction with a digital counter to integrate the measured battery current.
Keywords :
battery charge measurement; battery powered vehicles; calibration; electric current measurement; voltage-frequency convertors; automated calibration process; charge flow measurements; charge measurement circuit; digital counter; electric vehicle batteries; state of charge calculation; voltage to frequency converter; Battery charge measurement; Charge measurement; Current measurement; Digital-to-frequency converters; Electric vehicles; Fluid flow measurement; Frequency conversion; Frequency measurement; Integrated circuit measurements; Voltage;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2002.1145743
