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US 12,691,786 B2Granted
Method for derating battery charging power and battery pack to which the method is applied
AssigneeSamsung SDI Co., Ltd.
InventorsJiwon Lee, Joon-Woo Song
Life of this patent
Estimating the term…
Abstract
A method for derating a charge power of a battery, includes: obtaining altitude data of a vehicle; obtaining descent speed data of the vehicle; calculating, based on the altitude data and the descent speed data, a prediction value of an increase in a charging current of the battery equipped in the vehicle due to regenerative braking; and derating the charging power of the battery based on the calculated prediction value.
Claims20
A method for derating a charge power of a battery, the method comprising:
- obtaining altitude data of a vehicle for a time segment;
- obtaining descent speed data of the vehicle for the time segment;
- calculating, based on the altitude data and the descent speed data, a prediction value of an increase in a charging current of the battery equipped in the vehicle due to regenerative braking by multiplying a regenerative braking current value by a descent driving distance for the time segment, the descent driving distance being calculated based on the descent speed data for the time segment and a driving time duration;
- and
- derating the charging power of the battery based on the calculated prediction value.
2 more elements
A battery pack comprising:
- a battery assembly comprising a plurality of battery cells;
- a battery protection device connected to the battery assembly;
- and
- a battery management system comprising:
- a measurement unit configured to measure altitude data of a vehicle for a time segment and descent speed data of the vehicle for the time segment;
- a charge prediction unit configured to calculate a prediction value of an increase in a charging current of the battery assembly due to regenerative braking based on the altitude data and the descent speed data by multiplying a regenerative braking current value by a descent driving distance for the time segment, the descent driving distance being calculated based on the descent speed data and a driving time duration;
- and
- a derating unit configured to derate a charging power of the battery assembly based on the calculated prediction value of the increase in the charging current.
5 more elements
Dependencies are inferred from the claim text.