BATTERY MANAGEMENT SYSTEM AND BATTERY REPLACEMENT METHOD
First Claim
1. A battery management system comprising:
- a measuring unit configured to measure a surface pressure of a vehicle-mounted secondary battery for driving the vehicle with a lapse of time;
a calculation unit configured to calculate a high-rate driving frequency coefficient at intervals of a predetermined period on the basis of the surface pressure measured by the measuring unit, the high-rate driving frequency coefficient being an index of a frequency of high-rate driving;
a deriving unit configured to derive a high-rate driving frequency on the basis of the number of times that the high-rate driving frequency coefficient calculated by the calculation unit has exceeded a predetermined threshold; and
a selecting unit configured to select a replacement battery from among batteries including a high-power battery on the basis of the high-rate driving frequency derived by the deriving unit.
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Accused Products
Abstract
A battery management system includes: measuring a surface pressure of a vehicle-mounted secondary battery (battery cell) for driving the vehicle with a lapse of time; calculating a high-rate driving frequency coefficient on the basis of the measured surface pressure at intervals of a predetermined period (24 hours); deriving a high-rate driving frequency on the basis of the number of times that the calculated high-rate driving frequency coefficient has exceeded a predetermined threshold; and selecting a replacement battery from among batteries including a high-power battery on the basis of the derived high-rate driving frequency.
13 Citations
12 Claims
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1. A battery management system comprising:
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a measuring unit configured to measure a surface pressure of a vehicle-mounted secondary battery for driving the vehicle with a lapse of time; a calculation unit configured to calculate a high-rate driving frequency coefficient at intervals of a predetermined period on the basis of the surface pressure measured by the measuring unit, the high-rate driving frequency coefficient being an index of a frequency of high-rate driving; a deriving unit configured to derive a high-rate driving frequency on the basis of the number of times that the high-rate driving frequency coefficient calculated by the calculation unit has exceeded a predetermined threshold; and a selecting unit configured to select a replacement battery from among batteries including a high-power battery on the basis of the high-rate driving frequency derived by the deriving unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A battery replacement method comprising:
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measuring a surface pressure of a vehicle-mounted secondary battery for driving the vehicle with a lapse of time; calculating a high-rate driving frequency coefficient at intervals of a predetermined period on the basis of the measured surface pressure, the high-rate driving frequency coefficient being an index of a frequency of high-rate driving; deriving a high-rate driving frequency on the basis of the number of times that the calculated high-rate driving frequency coefficient has exceeded a predetermined threshold; and selecting a replacement battery from among batteries including a high-power battery on the basis of the derived high-rate driving frequency. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification