04390841 is referenced by 137 patents and cites 4 patents.

A monitoring apparatus and method are disclosed for monitoring and/or indicating energy that a battery power source has then remaining and/or can deliver for utilization purposes as, for example, to an electric vehicle. A battery mathematical model forms the basis for monitoring with a capacity prediction determined from measurement of the discharge current rate and stored battery parameters. The predicted capacity is used to provide a state-of-charge indication. Self-calibration over the life of the battery power supply is enacted through use of a feedback voltage based upon the difference between predicted and measured voltages to correct the battery mathematical model. Through use of a microprocessor with central information storage of temperature, current and voltage, system behavior is monitored, and system flexibility is enhanced.

Title
Monitoring apparatus and method for battery power supply
Application Number
6/196398
Publication Number
4390841
Application Date
October 14, 1980
Publication Date
June 28, 1983
Inventor
Raymond E Goodson
West Lafayette
IN, US
Harry L Martin
Knoxville
TN, US
Agent
Robert E Harris
John R Nesbitt
Assignee
Purdue Research Foundation
IN, US
IPC
G01N 27/46
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