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Patent Agency Ranking
1.发明申请公开(公告)号：US20200254902A1
公开(公告)日：2020-08-13
申请号：US16642718
申请日：2018-08-31
Applicant: BYD COMPANY LIMITED
Inventor： Hongbin LUO , Chao WANG , Xiaofeng SHEN , Qiuyong ZENG
Abstract: The present application discloses a battery equalization system, a vehicle, a battery equalization method, and a storage medium. The battery equalization system includes: a collection circuit; an equalization circuit; a controller, connected to the collection circuit and the equalization circuit; and a power supply branch circuit, controlled by the controller to get connected to a power supply unit and the battery equalization system when a vehicle is in an OFF gear and a cell needs enabling of equalization, so that the power supply unit supplies power to the battery equalization system.
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2.发明公开公开(公告)号：US20240246449A1
公开(公告)日：2024-07-25
申请号：US18623023
申请日：2024-03-31
Applicant: BYD COMPANY LIMITED
Inventor： Qiuyong ZENG , Xiaofeng SHEN , Linwang DENG , Yuanhong LIU , Honggang YOU , Xunwen CAO
CPC classification number: B60L58/12 , B60L3/00 , B60L53/62 , B60L2260/52
Abstract: A charging control method for a vehicle having an electric function includes: vehicle usage habit data of a user in preset time is read. The usage habit data includes a charging time point of each charging and driving mileage of each driving of the vehicle in the preset time. A current remaining state of charge of the vehicle at a current moment is detected. An estimated need state of charge of the vehicle is determined based on the usage habit data. Whether the vehicle needs charging is determined based on the estimated need state of charge and the current remaining state of charge. The present disclosure further provides a charging control apparatus, a vehicle, and a computer-readable storage medium.
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公开(公告)号：US20230356626A1
公开(公告)日：2023-11-09
申请号：US18338936
申请日：2023-06-21
Applicant: BYD COMPANY LIMITED
Inventor： Hongbin LUO , Chao WANG , Xiaofeng SHEN , Qiuyong ZENG
CPC classification number: B60L58/22 , H02J7/0019 , H02J7/0047 , H02J7/0014
Abstract: The present application discloses a battery equalization system, a vehicle, a battery equalization method, and a storage medium. The battery equalization system includes: a collection circuit; an equalization circuit; a controller, connected to the collection circuit and the equalization circuit; and a power supply branch circuit, controlled by the controller to get connected to a power supply unit and the battery equalization system when a vehicle is in an OFF gear and a cell needs enabling of equalization, so that the power supply unit supplies power to the battery equalization system.
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4.发明申请公开(公告)号：US20200346558A1
公开(公告)日：2020-11-05
申请号：US16642811
申请日：2018-08-31
Applicant: BYD COMPANY LIMITED
Inventor： Hongbin LUO , Chao WANG , Xiaofeng SHEN , Qiuyong ZENG , Yuanhong LIU , Xiang ZHANG
Abstract: A battery equalization method includes: obtaining a voltage value of a to-be-equalized cell in a battery pack; obtaining a reference voltage value required for equalization; determining a target equalization duration of the to-be-equalized cell according to a voltage value of the to-be-equalized cell, the reference voltage value, and a preset equalization duty cycle, where the equalization duty cycle is a ratio of an equalization period in a unit cycle to the unit cycle, and the unit cycle includes the equalization period and a sampling period; and controlling equalization of the to-be-equalized cell in the equalization period in the unit cycle according to the target equalization duration. According to this method, sampling is separated from equalization in a unit cycle, thereby ensuring accuracy of collected battery information, making the calculated equalization duration relatively accurate, and improving equalization effects of the battery pack.
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公开(公告)号：US20200346552A1
公开(公告)日：2020-11-05
申请号：US16642816
申请日：2018-08-31
Applicant: BYD COMPANY LIMITED
Inventor： Hongbin LUO , Chao WANG , Xiaofeng SHEN , Chengzhi WANG , Qiuyong ZENG
Abstract: The present application discloses a battery equalization system, a vehicle, a battery equalization method, and a storage medium. The battery equalization system includes: a collection circuit; an equalization circuit; a controller; a charging branch circuit, connected to a charging device and a battery pack; and a first power supply branch circuit, connected to the charging device and the battery equalization system, and configured to supply power to the battery equalization system. When a state-of-charge of the battery pack is full and a cell in the battery pack needs enabling of equalization, the controller controls the charging branch circuit to disconnect, and controls the first power supply branch circuit to keep connected, so that an equalization module performs equalization processing on the cell that needs enabling of equalization.
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