Battery control apparatus
First Claim
1. A battery control apparatus comprising:
- a battery temperature detecting device that detects a temperature of a battery by the direct actual temperature of the battery;
a state-of-charge determining device that determines a state of charge of the battery; and
a battery charge-discharge control device that controls charge-discharge of the battery;
wherein said battery charge-discharge control device functions when the temperature of the battery detected by said battery temperature detecting device is equal to or less than a predetermined temperature and the state of charge of the battery determined by said state-of-charge determining device is equal to or greater than a threshold set in advance, for repeating charge and discharge of the battery such that the state of charge varies in a range of 50–
60%, andwhen the state of charge of the battery is less than the threshold, for repeating charge and discharge of the battery such that the state of charge varies in a range of 30–
40%.
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Accused Products
Abstract
There is provided a battery control apparatus that, when the battery temperature is low, repeats the charge and discharge of a battery on a short cycle such that the state of charge (SOC) of the battery lies in the range of 30 to 40% if the present SOC is less than 50%, and repeats the charge and discharge of the battery on a short cycle such that the SOC lies in the range of 50 to 60% if the present SOC is equal to or greater than 50%, thus increasing the temperature of the battery. Therefore, it is possible to increase the battery temperature in an efficient manner, and to prevent the available input-output power of the battery from being reduced due to a decrease in the battery temperature.
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Citations
6 Claims
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1. A battery control apparatus comprising:
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a battery temperature detecting device that detects a temperature of a battery by the direct actual temperature of the battery; a state-of-charge determining device that determines a state of charge of the battery; and a battery charge-discharge control device that controls charge-discharge of the battery; wherein said battery charge-discharge control device functions when the temperature of the battery detected by said battery temperature detecting device is equal to or less than a predetermined temperature and the state of charge of the battery determined by said state-of-charge determining device is equal to or greater than a threshold set in advance, for repeating charge and discharge of the battery such that the state of charge varies in a range of 50–
60%, andwhen the state of charge of the battery is less than the threshold, for repeating charge and discharge of the battery such that the state of charge varies in a range of 30–
40%. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification