公开(公告)号：US20240322591A1

公开(公告)日：2024-09-26

申请号：US18677896

申请日：2024-05-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiangtao Li ,  Bao Li ,  Kai Wu

IPC: H02J7/04 ,  B60L53/62 ,  H02J7/00

CPC classification number: H02J7/04 ,  B60L53/62 ,  H02J7/0047 ,  B60L2210/14 ,  B60L2210/30

Abstract: The application provides a battery charging circuit. The battery charging circuit includes a bidirectional vehicle-mounted charging module; a first loop switch module, configured to, once turned on, connect a direct current charging interface of a charging pile to the bidirectional vehicle-mounted charging module's first end, and the bidirectional vehicle-mounted charging module's second end to a battery pack, when the charging pile is charging an electric vehicle; a second loop switch module, configured to, once turned on, connect the direct current charging interface to the battery pack, 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 or the second loop switch module to be turned on, according to the direct current voltage.

公开(公告)号：US20240329144A1

公开(公告)日：2024-10-03

申请号：US18743142

申请日：2024-06-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chuanhui Zhang ,  Xiangtao Li ,  Bao Li ,  Kai Wu

IPC: G01R31/3835 ,  H01M10/42 ,  H02J7/00

CPC classification number: G01R31/3835 ,  H01M10/4207 ,  H01M10/425 ,  H02J7/00036 ,  H01M2010/4271 ,  H01M2010/4278

Abstract: A battery management method, a battery management device, and a battery system are provided in the embodiments of the present disclosure. The battery management method is applied to the battery management device to realize management of the battery device. The battery management device comprises a connection state transition device, contacts of the connection state transition device are connected to two battery packs of the battery device, respectively. The method includes: obtaining an operating environment voltage of the battery device; and controlling the connection state transition device to transition from a first connection state to a second connection state according to the operating environment voltage. It is desirable to solve the technical problem of incompatibility of the battery device with different voltage platforms in the embodiments of the present disclosure.