Deterioration degree calculating apparatus and deterioration degree calculating method for a battery
First Claim
1. A deterioration degree calculating apparatus for a battery, comprising:
- a detector that detects plural state quantities of the battery;
a first calculator that calculates plural deterioration degrees based on the detected plural state quantities;
a storing device that stores contribution degrees each of which corresponds to each of the plural deterioration degrees;
a second calculator that calculates a total deterioration degree of the battery based on the deterioration degrees and the contribution degrees; and
a third calculator that calculates the contribution degrees based on the calculated total deterioration degree.
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Abstract
A battery ECU includes a central processing unit (CPU). The CPU calculates plural deterioration degrees based on data input from a thermistor, an ammeter, and a voltmeter which detect state quantities of a nickel-hydrogen battery, and reads, from a memory, contribution degrees each of which corresponds to each of the calculated plural deterioration degrees. Then the CPU calculates a total deterioration degree of the nickel-hydrogen battery based on the deterioration degrees and the contribution degrees, calculates the contribution degrees based on the calculated total deterioration degree, and stores the contribution degrees in the memory.
29 Citations
19 Claims
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1. A deterioration degree calculating apparatus for a battery, comprising:
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a detector that detects plural state quantities of the battery;
a first calculator that calculates plural deterioration degrees based on the detected plural state quantities;
a storing device that stores contribution degrees each of which corresponds to each of the plural deterioration degrees;
a second calculator that calculates a total deterioration degree of the battery based on the deterioration degrees and the contribution degrees; and
a third calculator that calculates the contribution degrees based on the calculated total deterioration degree. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A deterioration degree calculating method for a battery, comprising:
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a first detecting step of detecting plural state quantities of the battery;
a first calculating step of calculating plural deterioration degrees based on the detected plural state quantities;
a storing step of storing the contribution degrees each of which corresponds to each of the plural deterioration degrees;
a second detecting step of calculating a total deterioration degree of the battery based on the deterioration degrees and the contribution degrees; and
a third calculating step of calculating the contribution degrees based on the calculated total deterioration degree. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A deterioration degree calculating apparatus for a battery, comprising:
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detecting means for detecting plural state quantities of the battery;
first calculating means for calculating plural deterioration degrees based on the detected plural state quantities;
storing means for storing contribution degrees each of which corresponds to each of the plural deterioration degrees;
second calculating means for calculating a total deterioration degree of the battery based on the deterioration degrees and the contribution degrees; and
third calculating means for calculating the contribution degrees based on the calculated total deterioration degree.
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Specification