Charging accuracy diagnosis method and device and chip

A diagnosis method and technology of a diagnosis device are applied in battery/fuel cell control devices, charging stations, electric vehicle charging technology, etc., and can solve the problems of inability to accurately judge the accuracy of charging piles and uneven quality.
CN108583305AActive Publication Date: 2018-09-28CONTEMPORARY AMPEREX TECH CO
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CONTEMPORARY AMPEREX TECH CO
Publication Date
2018-09-28

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Abstract

The invention discloses a charging accuracy diagnosis method and device and a chip. The charging accuracy diagnosis method comprises the steps of obtaining a request current value when a battery management system requests a current from a charging pile in a designated charging stage of the battery charging process; obtaining a feedback current value output by the charging pile in response to the battery management system; and on the basis of the request current value and the feedback current value, calculating an output current accuracy value of the charging pile in the designated charging stage. According to the charging accuracy diagnosis method and device and the chip disclosed by the embodiment of the invention, the output current accuracy of the charging pile can be accurately judgedin the battery charging process.
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Description

technical field

[0001] The invention relates to the field of power batteries, in particular to a charging accuracy diagnosis method, device and chip. Background technique

[0002] Based on the energy saving and environmental protection of electric vehicles, it has become the development trend of the automobile industry to replace fuel vehicles with electric vehicles. The on-board battery pack is responsible for storing and providing electric energy. As the core component of electric vehicles, it is the power guarantee for the normal driving of electric vehicles.

[0003] In the process of using the charging pile to charge the electric vehicle, the charging pile can communicate with the battery management system (Battery Management System, BMS), exchange messages with the BMS, dynamically adjust the charging parameters according to the data provided by the BMS, and complete the charging process. The charging process of rechargeable batteries used in electric vehicles. [000...

Claims

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