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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:
;
Publication Date:
Research Org.:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
864600
Patent Number(s):
4,390,841
Application Number:
06/196398
Assignee:
Purdue Research Foundation (West Lafayette, IN)
DOE Contract Number:  
AC02-79ER10044
Resource Type:
Patent
Resource Relation:
Patent File Date: 1980 Oct 14
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. 1983. "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 = {},
url = {https://www.osti.gov/biblio/864600}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1983},
month = {Sat Jan 01 00:00:00 EST 1983}
}