Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology (Hong Kong) Limited

Contemporary Amperex Technology Limited

Hang Ma

Zhenhui Huang

Xingchang Wang

Yongchao Li

Fangyou Lu

Wei Tian

Zhiwei Yan

Xu Zhang

The present application discloses an insulation sampling circuit. The insulation sampling circuit includes: a first sampling circuit composed of a first sampling module, a first resistor, and a first switch module; a second sampling circuit composed of a second sampling module, a second resistor, and a second switch module; and a voltage withstand module. The first resistor is connected in parallel to the first sampling module; the first switch module is configured to control the first sampling module and/or the first resistor to be connected between a positive bus and a ground wire; the second resistor is connected in parallel to the second sampling module; the second switch module is configured to control the second sampling module and/or the second resistor to be connected between a negative bus and the ground wire; and the voltage withstand module is disposed on the ground wire to disconnect the ground wire.

Insulation sampling circuit and control method therefor, voltage withstand test method, and power consuming device

The present application provides a method for managing charging in a battery swapping station. The method includes: receiving, by the first management unit, a wireless communication connection instruction transmitted by a management device of the battery swapping station, wherein the connection instruction includes a network location address of a second management unit of a battery pack; initiating, by the first management unit, a wireless communication connection to the second management unit based on the network location address; uploading, by the first management unit, battery status information of the battery pack acquired from the second management unit to the management device; and under a condition that the first management unit receives a charging instruction transmitted by the management device based on the battery status information, controlling, by the first management unit via an interaction with the second management unit and the charging unit, the charging unit to charge the battery pack.

Method for managing charging in a battery swapping station, battery swapping cabinet and system

The embodiments of the application provide a battery swapping method, a server and a battery installing-and-removing device. The battery swapping method comprising: receiving battery swapping status information of an electric vehicle; sending a battery removing instruction to a battery installing-and-removing device based on the battery swapping status information; sending a battery installation instruction to the battery installing-and-removing device when detecting that the first battery is transported to the first position; receiving the battery installation information sent by the battery installing-and-removing device; sending a battery swapping completion instruction to the electric vehicle based on the battery installation information.

Battery swapping method, server and battery installing-and-removing device

Embodiments of the present application provides a vehicle battery swapping method. The method includes: under a condition that a target vehicle arrives at an entrance of the battery swapping station, collecting a vehicle identification of the target vehicle; obtaining a target network location address based on the vehicle identification and a stored first binding relationship, wherein the target network location address includes a network location address of a second management unit corresponding to the vehicle identification in the first binding relationship; based on the target network location address, initiating, by the first management unit, a wireless communication request to the second management unit corresponding to the target network location address; and under a condition that the first management unit successfully establishes a wireless communication connection with the second management unit corresponding to the target network location address, interacting with the second management unit to initiate a battery swapping process.

Vehicle battery swapping method, battery swapping station, vehicle and system

A load access detection method, a switch circuit, and a battery management system, relating to the field of circuit technology. The load access detection method includes: detecting a voltage at a first detection point; detecting a voltage at a second detection point; if a voltage difference between the voltage at the first detection point and the voltage at the second detection point is less than or equal to a preset voltage threshold, controlling a switch circuit to enter a pre-charging mode, and pre-charging a load capacitor in the load circuit through the battery pack, where a charging current of the switch circuit in the pre-charging mode is less than a charging current of the switch circuit in a charging mode.

Load access detection method, switch circuit, and battery management system

Provided are a circuit control method, a battery controller, a battery management system, a battery, an electrical apparatus, and a vehicle. The circuit control method includes: acquiring an apparatus wake-up signal; determining whether a power source terminal voltage of a charging circuit of a battery on the apparatus is greater than a first threshold and whether a change rate in a first time length is less than a second threshold, wherein the charging circuit is a circuit connecting the battery on the apparatus and a generator, and the power source terminal voltage is an output voltage of the generator; and issuing a first instruction when the power source terminal voltage of the charging circuit of the battery on the apparatus is greater than the first threshold and the change rate in the first time length is less than the second threshold, so that the charging circuit is turned on.

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Ningde, China

Hang Ma