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公开(公告)号：US12123917B2
公开(公告)日：2024-10-22
申请号：US18058008
申请日：2022-11-22
发明人： Haijiang Wang , Shuting Sun , Xu Liang
IPC分类号： G01R31/3842 , H02J7/00
CPC分类号： G01R31/3842 , H02J7/0047
摘要： A method for determining a remaining charging time of a battery. The method includes obtaining a first charging current and a second charging current. The first charging current is a present charging current of the battery, and the second charging current is a charging current of the battery when the battery is fully charged. The method further includes determining an average charging current value based on the first charging current and the second charging current, and determining the remaining charging time based on the average charging current value.
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公开(公告)号：US11835587B2
公开(公告)日：2023-12-05
申请号：US17868636
申请日：2022-07-19
发明人： Mingshu Du , Shuai Gao , Shuting Sun
IPC分类号： G01R31/388 , G01R31/392 , G01R31/36
CPC分类号： G01R31/388 , G01R31/3648 , G01R31/392
摘要： A method for determining a full-charge capacity of a battery pack includes: obtaining first state of charge values of cells at a first state of charge correction moment; calculating a net cumulative charge capacity from the first state of charge correction moment to a full-charge moment; obtaining a voltage-capacity curve of a fully charged cell from start of a charge termination phase to the full-charge moment; obtaining a second voltage of a not fully charged cell at the full-charge moment; obtaining a capacity difference between the not fully charged cell at the full-charge moment and the not fully charged cell at the first full-charge voltage; calculating a state of charge difference; calculating a second state of charge value of the not fully charged cell at the full-charge moment; obtaining state of charge variations; calculating full-charge capacities; and obtaining a full-charge capacity based on the calculated full-charge capacities.
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公开(公告)号：US20230029223A1
公开(公告)日：2023-01-26
申请号：US17868636
申请日：2022-07-19
发明人： Mingshu DU , Shuai Gao , Shuting Sun
IPC分类号： G01R31/388 , G01R31/36 , G01R31/392
摘要： A method for determining a full-charge capacity of a battery pack includes: obtaining first state of charge values of cells at a first state of charge correction moment; calculating a net cumulative charge capacity from the first state of charge correction moment to a full-charge moment; obtaining a voltage-capacity curve of a fully charged cell from start of a charge termination phase to the full-charge moment; obtaining a second voltage of a not fully charged cell at the full-charge moment; obtaining a capacity difference between the not fully charged cell at the full-charge moment and the not fully charged cell at the first full-charge voltage; calculating a state of charge difference; calculating a second state of charge value of the not fully charged cell at the full-charge moment; obtaining state of charge variations; calculating full-charge capacities; and obtaining a full-charge capacity based on the calculated full-charge capacities.
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4.发明授权公开(公告)号：US11502531B2
公开(公告)日：2022-11-15
申请号：US17364971
申请日：2021-07-01
发明人： Shuting Sun , Haijiang Wang , Wei Zhao
摘要： This application provides a method and a device for estimating a remaining charging time of a battery, and a battery management system. The method includes: determining a minimum charging time of each type of battery cell at a Kth charging phase based on a charge request current value of each type of battery cell at the Kth charging phase; and determining the remaining charging time of the battery when the Kth charging phase of any type of battery cell in the battery is a target state-of-charge phase, where the remaining charging time of the battery is a smallest one of accumulation values, each accumulation value being an accumulation of minimum charging times of a type of battery cell in the battery at all charging phases.
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