Patent ID: 11912158
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  G  H  Y | IPC B  G  H

Claim 0:
1. A battery management apparatus, comprising:
a memory configured to store a charging sequence table that records a correspondence relationship between first to mth temperature ranges, first to mth state of charge (SOC) lists, and first to mth current lists, where m is a natural number of 2 or greater;
a sensing unit configured to detect a voltage, a current, and a temperature of a battery; and
a controller operably coupled to the memory and the sensing unit,
wherein each of the SOC lists defines first to nth SOC ranges, where n is a natural number of 2 or greater,
wherein each of the current lists defines first to nth allowable constant currents corresponding to the first to nth SOC ranges in a one-to-one relationship, and
wherein the controller is configured to:
determine a current SOC of the battery based on the detected voltage and the detected current,
determine a temperature range of interest, a SOC list of interest, and a current list of interest from the charging sequence table based on the detected temperature, the temperature range of interest being a temperature range to which the detected temperature belongs among the first to mth temperature ranges, the SOC list of interest being a SOC list corresponding to the temperature range of interest among the first to mth SOC lists, the current list of interest being a current list corresponding to the temperature range of interest among the first to mth current lists,
determine first to nth set capacities corresponding to the first to nth SOC ranges defined by the SOC list of interest in a one-to-one relationship,
determine first to nth target capacities for charging the battery in each of the first to nth SOC ranges defined by the SOC list of interest, based on the current SOC and the first to nth set capacities, and
determine a remaining charging time required to charge the battery to a target SOC based on the detected current, the first to nth target capacities, and the first to nth allowable constant currents defined by the current list of interest.