Battery status monitoring apparatus and method
First Claim
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1. A battery condition monitor for monitoring a condition of a battery, comprising:
- a first deterioration detector for detecting a first deterioration degree cause by increase of an internal resistance of the battery; and
a second deterioration detector for detecting a second deterioration degree caused by decrease of active material of the battery to cause decrease of a charge capacity of the battery, wherein the condition of the battery is monitored based on the first deterioration degree and the second deterioration degree.
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Abstract
A microcomputer 23 monitors the battery condition by detecting a first deterioration degree caused by increase of an internal resistance of a battery 13 and a second deterioration degree caused by inactivation of an activation material in the battery 13 based on outputs of a current sensor 15 and a voltage sensor 17.
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Citations
5 Claims
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1. A battery condition monitor for monitoring a condition of a battery, comprising:
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a first deterioration detector for detecting a first deterioration degree cause by increase of an internal resistance of the battery; and
a second deterioration detector for detecting a second deterioration degree caused by decrease of active material of the battery to cause decrease of a charge capacity of the battery, wherein the condition of the battery is monitored based on the first deterioration degree and the second deterioration degree. - View Dependent Claims (2, 3, 5)
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4. A method of monitoring a battery condition comprising a step of monitoring the battery condition based on a first deterioration degree caused by increase of an internal resistance of the battery and a second deterioration degree indicating a decreasing value of active material of the battery to cause decrease of a charge capacity of the battery.
Specification