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Title: Monitoring apparatus and method for battery power supply

Abstract

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.

Inventors:
 [1];  [2]
  1. (Knoxville, TN)
  2. (West Lafayette, IN)
Issue Date:
Research Org.:
Purdue Univ., West Lafayette, IN (United States)
OSTI Identifier:
864600
Patent Number(s):
4390841
Assignee:
Purdue Research Foundation (West Lafayette, IN) OSTI
DOE Contract Number:  
AC02-79ER10044
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
monitoring; apparatus; method; battery; power; supply; disclosed; indicating; energy; source; remaining; deliver; utilization; purposes; example; electric; vehicle; mathematical; model; forms; basis; capacity; prediction; determined; measurement; discharge; current; rate; stored; parameters; predicted; provide; state-of-charge; indication; self-calibration; life; enacted; feedback; voltage; based; difference; measured; voltages; correct; microprocessor; central; information; storage; temperature; behavior; monitored; flexibility; enhanced; feedback voltage; monitoring apparatus; battery power; discharge current; electric vehicle; power source; power supply; information storage; mathematical model; measured voltage; charge current; /324/429/

Citation Formats

Martin, Harry L., and Goodson, Raymond E. Monitoring apparatus and method for battery power supply. United States: N. p., 1983. Web.
Martin, Harry L., & Goodson, Raymond E. Monitoring apparatus and method for battery power supply. United States.
Martin, Harry L., and Goodson, Raymond E. Sat . "Monitoring apparatus and method for battery power supply". United States. https://www.osti.gov/servlets/purl/864600.
@article{osti_864600,
title = {Monitoring apparatus and method for battery power supply},
author = {Martin, Harry L. and Goodson, Raymond E.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

Patent:

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