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公开(公告)号：EP4424543A1
公开(公告)日：2024-09-04
申请号：EP21969318.1
申请日：2021-12-28
发明人： LI, Xiangtao , LI, Bao , WU, Kai
摘要： The application provides a battery charging circuit, applicable to an electric vehicle. The battery charging circuit includes a bidirectional vehicle-mounted charging module; a first loop switch module, configured to, once turned on, electrically connect a direct current charging interface of a charging pile to a first end of the bidirectional vehicle-mounted charging module, and a second end of the bidirectional vehicle-mounted charging module to a battery pack of the electric vehicle, when the charging pile is charging the electric vehicle; a second loop switch module, configured to, once turned on, electrically connect the direct current charging interface of the charging pile to the battery pack of the electric vehicle, when the charging pile is charging the electric vehicle; the bidirectional vehicle-mounted charging module, configured to boost a direct current voltage output by the charging pile to be higher than a preset voltage; and a control module, configured to control the first loop switch module to be turned on or the second loop switch module to be turned on, according to the direct current voltage of the charging pile.
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2.发明公开
公开(公告)号：EP4425639A1
公开(公告)日：2024-09-04
申请号：EP21969339.7
申请日：2021-12-28
发明人： ZUO, Xiyang , WANG, Xiao , LI, Xiangtao , LI, Bao
摘要： The present application provides a method and a device for charging and discharging a battery system, the battery system and an electric vehicle. The battery system includes a low-voltage battery and a high-voltage battery, the high-voltage battery and the low-voltage battery are both configured to be connected with a load. The method for charging and discharging the battery system includes steps of obtaining a first power of the load when the load is in operation; obtaining a first SOC value of the low-voltage battery and a second SOC value of the high-voltage battery; and controlling charge-and-discharge processes of the high-voltage battery and the low-voltage battery according to the first power, the first SOC value and the second SOC value. Through the above method, the risk of over-discharging of the high-voltage battery and the low-voltage battery can be reduced, and the service life of the high-voltage battery and the low-voltage battery can be prolonged.
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公开(公告)号：EP4304045A1
公开(公告)日：2024-01-10
申请号：EP22926335.5
申请日：2022-07-29
发明人： CHEN, Xinwei , LI, Xiangtao , YAN, Yu , DAN, Zhimin , LOU, Qidong
摘要： This application relates to an energy storage apparatus. The energy storage apparatus includes a control circuit, multiple battery clusters connected in parallel, and switch circuits corresponding to the battery clusters. The switch circuit includes a first switch and a protection circuit connected in parallel; the control circuit is connected to each first switch and each protection circuit; each battery cluster is connected to the corresponding first switch and protection circuit; and the control circuit is configured to control, according to a high voltage on signal, the protection circuit to be closed and the first switch to be opened. The energy storage apparatus in embodiments of this application can prevent batteries from being damaged by excessively high voltage or current when high voltage is applied to battery clusters.
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公开(公告)号：EP4422020A1
公开(公告)日：2024-08-28
申请号：EP22922688.1
申请日：2022-01-26
发明人： ZHANG, Chuanhui , LI, Xiangtao , LI, Bao , WU, Kai
IPC分类号： H02J7/00
CPC分类号： H02J7/00
摘要： A battery management method, a battery management apparatus, and a battery system. The battery management method is applied to a battery management apparatus (20), so as to manage a battery apparatus (10). The battery management apparatus (20) comprises a connection state conversion apparatus (200), wherein a contact of the connection state conversion apparatus (200) is connected to two battery packs of the battery apparatus (10). The method comprises: acquiring a working environment voltage of a battery apparatus (10); and controlling, according to the working environment voltage, a connection state conversion apparatus (200) to switch from a first connection state to a second connection state. The technical problem of a battery apparatus (10) being incompatible with different voltage platforms is expected to be solved.
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5.发明公开
公开(公告)号：EP4369556A1
公开(公告)日：2024-05-15
申请号：EP22941424.8
申请日：2022-09-13
发明人： CHEN, Xinwei , LI, Xiangtao , PAN, Xianxi , HUANG, Tianyi , YAN, Yu , DAN, Zhimin
CPC分类号： Y02E60/10
摘要： This application relates to a control method, an apparatus, a device, a storage medium, and a program product for an energy storage system. The method includes: obtaining a first cluster voltage of a target battery cluster in the energy storage system; determining a second cluster voltage based on the first cluster voltage and a preset redundancy voltage, and determining an output voltage of a first regulator corresponding to the target battery cluster in the energy storage system based on a bus voltage and the second cluster voltage, where the redundancy voltage is within a regulation range of the first regulator; and controlling the output voltage of the first regulator for voltage regulation on the target battery cluster.
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公开(公告)号：EP4243237A1
公开(公告)日：2023-09-13
申请号：EP21921634.8
申请日：2021-12-30
发明人： LI, Xiangtao , LI, Bao , WU, Kai
摘要： Embodiments of this application provide a battery control circuit, a battery control method, and an electric apparatus. The battery control circuit includes a charging interface, a switch module, a first battery pack; a second battery pack, where a positive electrode of the second battery pack is connected to a negative electrode of the first battery pack; and a control module, configured to: when detecting that the charging interface receives a charging signal from a low-voltage platform, control the switch module to switch to a first connection state, where in the first connection state, a target battery pack is connected in series to the charging interface to form a first loop, so as to charge the target battery pack, where the target battery pack is the first battery pack or the second battery pack.
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