Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Co., Ltd.

Jihai Xie

Chao Wang

Shuting Sun

Yongchao Li

Hui Jia

Xueyu Zhan

Bo Zeng

Chunshu Lan

Yajie Yuan

Tingda Lin

Jinfu Wang

Wei Ye

A discharging control method and a charging control method for a battery pack control system are provides. The battery pack control system includes a master battery management unit and multiple slave battery management units. The master battery management unit controls the slave battery management units. The slave battery management units controls battery packs to connect to an operating circuit or disconnect from the operating circuit. In the discharging control method and the charging control method, a loop current generated from connecting a battery pack to an operating circuit is predicted each time before a slave battery management unit controls the battery pack to connect to the operating circuit, and the battery pack is controlled to connect to the operating circuit with the generated loop current within a safe value range.

Discharge control method and charge control method of battery pack control system

This application provides a battery swap method, a battery swap station, and an electrical apparatus. The battery swap method includes: obtaining identity information of an electrical apparatus which requests a swap of a battery; authenticating the identity information; establishing communication with the electrical apparatus in response to a determination that the identity information passes the authentication; determining whether the battery in the electrical apparatus and a shared battery in the battery swap station satisfy a battery swap condition; and swapping the battery in the electrical apparatus with the shared battery in the battery swap station in response to a determination that at least one of the battery in the electrical apparatus and the shared battery in the battery swap station satisfies the battery swap condition. The batteries are authenticated in addition to authentication of the electrical apparatus, thereby improving reliability and security of authentication during a battery swap.

Battery swap authentication method and apparatus, electronic device, battery swap station, and electrical apparatus

The present application relates to a method for manufacturing a battery management system and a method for starting up a battery management system. The battery management system includes a plurality of battery management units, the plurality of battery management units include a first battery management unit and a second battery management unit, the first battery management unit includes a main core micro control unit, a first data transmission micro control unit and a hardware security module, and the second battery management unit includes a second data transmission micro control unit. According to the embodiments of the present application, a comprehensive verification for the battery management system including a plurality of battery management units can be achieved with one hardware security module.

Method for manufacturing and starting up battery management system

Embodiments of this application provide a battery management system (BMS) wake-up method, a BMS wake-up apparatus, and a storage medium, and pertains to the field of battery safety technologies. In this application, before a BMS hibernates, a wake-up threshold corresponding to first sampling information is determined based on an obtained extremum of the first sampling information of a battery cell. After the BMS hibernates, a sampling chip collects second sampling information of the battery cell when the BMS is hibernating, and transmits a wake-up signal to the BMS when it is determined that the second sampling information of the battery cell reaches the wake-up threshold. In this way, the BMS can be woken up in a timely manner by the wake-up signal, and therefore the BMS can find battery safety problems in a timely manner.

Battery management system wake-up method, battery management system wake-up apparatus, and storage medium

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Ningde, China

Jihai Xie