Adjustment of control strategy based on temperature
First Claim
1. In a vehicle having a battery that selectively supplies electric power for starting an engine of the vehicle and that selectively supplies electric power to a plurality of electric loads of the vehicle, a method of protecting the battery comprising:
- (a) measuring a temperature of the battery, a temperature of the vehicle'"'"'s engine and an ambient temperature;
(b) determining a state of charge (SOC) of the battery;
(c) determining a first threshold based on the measured temperature of the battery, the vehicle'"'"'s engine, and the ambient temperature;
(d) determining a second threshold based on the measured temperature of the battery, the vehicle'"'"'s engine, and the ambient temperature, said second threshold being different than the first threshold;
(e) taking a first remedial action if the SOC is below the first determined threshold; and
(f) taking a second remedial action if the SOC is below the second determined threshold, said second remedial action being different from the first remedial action.
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Accused Products
Abstract
A method of protecting a battery is provided in a vehicle having a battery that selectively supplies electric power for starting an engine of the vehicle and that selectively supplies electric power to a plurality of electric loads of the vehicle. The method includes: obtaining a temperature; determining a state of charge (SOC) of the battery; determining a first threshold based on the obtained temperature; determining a second threshold based on the obtained temperature, the second threshold being different than the first threshold; taking a first remedial action if the SOC is below the first determined threshold; and taking a second remedial action if the SOC is below the second determined threshold, the second remedial action being different from the first remedial action.
77 Citations
16 Claims
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1. In a vehicle having a battery that selectively supplies electric power for starting an engine of the vehicle and that selectively supplies electric power to a plurality of electric loads of the vehicle, a method of protecting the battery comprising:
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(a) measuring a temperature of the battery, a temperature of the vehicle'"'"'s engine and an ambient temperature; (b) determining a state of charge (SOC) of the battery; (c) determining a first threshold based on the measured temperature of the battery, the vehicle'"'"'s engine, and the ambient temperature; (d) determining a second threshold based on the measured temperature of the battery, the vehicle'"'"'s engine, and the ambient temperature, said second threshold being different than the first threshold; (e) taking a first remedial action if the SOC is below the first determined threshold; and (f) taking a second remedial action if the SOC is below the second determined threshold, said second remedial action being different from the first remedial action. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In a vehicle having a battery that selectively supplies electric power for starting an engine of the vehicle and that selectively supplies electric power to a plurality of electric loads of the vehicle, a battery protection system comprising:
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temperature sensing means for measuring a temperature of the battery, a temperature of the vehicle'"'"'s engine and an ambient temperature; battery sensing means for determining a state of charge (SOC) of the battery; threshold determining means for determining a first threshold and a second threshold based on the temperature of the battery, the vehicle'"'"'s engine, and the ambient temperature measured by the temperature sensing means, said second threshold being different than the first threshold; and remedial action means for taking a first remedial action if the SOC is below the first determined threshold and a second remedial action if the SOC is below the second determined threshold, said second remedial action being different from the first remedial action. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification