Battery condition monitor and monitoring method

Details Battery condition monitor and monitoring method Battery condition monitor and monitoring method

1985-12-09

1987-07-07

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324430, 320 48, 340636, G01N 2746

Patent

active

046789987

ABSTRACT:
A battery condition monitor and monitoring method uses known relationships between battery impedance, remaining capacity and remaining service life at different frequencies to detect remaining capacity and remaining service life. The monitor includes a computer for computing internal impedances of the storage battery from different frequency components of voltage and amperage signals from the battery, a memory for storing predetermined relationships between the internal impedance, remaining capacity and remaining service life of the storage battery for each of the frequencies and a device for determining the remaining capacity and remaining service life values for the storage battery in agreement at both or all frequency values derives from the computed internal impedances. The exact remaining capacity and service life of the storage battery are continuously monitored.

REFERENCES:
patent: 4204162 (1980-05-01), Froidevaux
patent: 4231027 (1980-10-01), Mann
patent: 4259639 (1981-03-01), Renirie
Willihnganz: "Battery Impedance"-Electrical Engineering Sep. 1959-pp. 922-925.

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