APPARATUS QUANTIFYING STATE-OF-CHARGE OF VEHICLE-MOUNTED RECHARGEABLE BATTERY
First Claim
1. A rechargeable battery state-of-charge quantifying apparatus for use in a vehicle equipped with an electric rotating machine working as a drive source and a rechargeable battery serving to supply electric power to the electric rotating machine comprising:
- quantifying means for quantifying a state-of-charge of the rechargeable battery, said quantifying means defining a minimum value of a state-of-charge of the rechargeable battery at which the rechargeable battery is permitted to produce a degree of electric power required to run the vehicle as a lower limit; and
increasing means for increasing the lower limit as the rechargeable battery ages.
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Accused Products
Abstract
A rechargeable battery state-of-charge quantifying apparatus for use in a vehicle equipped with an electric motor and a rechargeable battery which supplies electric power to the motor to produce a driving torque. The apparatus quantifies a state-of-charge of the rechargeable battery and defines a minimum value of a state-of-charge of the rechargeable battery at which the rechargeable battery is permitted to produce a degree of electric power required to run the vehicle as a lower limit. The lower limit is increased as the rechargeable battery ages, thereby ensuring the stability in supplying the amount of electric power to the motor which is required to run the vehicle regardless of aging of the battery.
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Citations
47 Claims
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1. A rechargeable battery state-of-charge quantifying apparatus for use in a vehicle equipped with an electric rotating machine working as a drive source and a rechargeable battery serving to supply electric power to the electric rotating machine comprising:
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quantifying means for quantifying a state-of-charge of the rechargeable battery, said quantifying means defining a minimum value of a state-of-charge of the rechargeable battery at which the rechargeable battery is permitted to produce a degree of electric power required to run the vehicle as a lower limit; and increasing means for increasing the lower limit as the rechargeable battery ages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A rechargeable battery state-of-charge quantifying apparatus for use in a vehicle equipped with an electric rotating machine working as a drive source and a rechargeable battery serving to supply electric power to the electric rotating machine comprising:
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quantifying means for quantifying a state-of-charge of the rechargeable battery, said quantifying means defining a minimum value of the state-of-charge of the rechargeable battery above which the rechargeable battery is permitted to produce a degree of electric power required to run the vehicle as a lower limit; and changing means for changing the lower limit as a function of a temperature of the rechargeable battery. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. A rechargeable battery state-of-charge quantifying apparatus for use in a vehicle equipped with an electric rotating machine working as a drive source and a rechargeable battery serving to supply electric power to the electric rotating machine comprising:
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quantifying means for quantifying a state-of-charge of the rechargeable battery; and a calculator which simulates a state of the rechargeable battery when the rechargeable battery is charged or discharged from a value of the state-of-charge which is temporarily set to be different from a current value of the state-of-charge based on a state of aging of the rechargeable battery to calculate a threshold value of the state-of-charge required to run the vehicle. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification