Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1989-02-21
1990-11-06
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
324427, 324433, G01N 2746
Patent
active
049689428
ABSTRACT:
An aircraft storage battery is monitored to determine battery capacity, state of charge and certain fault conditions. The ambient temperature, battery voltage on-board charger output voltage and current to and from the battery are continuously measured. Current voltage (I-V) data is analyzed to determine the internal resistance and polarization of the battery. A determination is made regarding state of charge and fault conditions produced by corroded terminals and low electrolyte level. The low temperature starting limit is determined by comparing the battery's power output capability with starting power requirements of the aircraft. Data produced by the comparison are indicated on the dashboard of the vehicle.
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patent: 4433294 (1984-02-01), Windebank
patent: 4665370 (1987-05-01), Holland
patent: 4678998 (1987-07-01), Muramatsu
patent: 4678999 (1987-07-01), Schneider
patent: 4719427 (1988-01-01), Morishita et al.
patent: 4745349 (1988-05-01), Palanisamy et al.
Allied-Signal Inc.
Buff Ernest D.
Eisenzopf Reinhard J.
Fuchs Gerhard H,.
Mueller Robert W.
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