Spontaneous combustion early warning system for monitoring electric vehicle in charging by charging pile

Abstract

The invention discloses a spontaneous combustion early warning system for monitoring an electric vehicle in charging by a charging pile, and relates to the technical field of batteries. The system includes a processor, the processor communicates with a BMS system of the electric vehicle through a CAN bus, and is also connected with a data analysis module, an active protection module and a spontaneous combustion early warning report generation module. A spontaneous combustion analysis module is used for comprehensively judging the temperature and the internal resistance state of a battery packaccording to detection data of the charging pile and the BMS system, so that stepped early warning against the spontaneous combustion state is realized; the spontaneous combustion analysis module comprises a temperature module and an internal resistance module; the active protection module is used for carrying out charging interruption operation according to the judgment result of the spontaneouscombustion analysis module; and the spontaneous combustion early warning report generation module is used for generating a spontaneous combustion early warning condition report of the battery pack according to the judgment result of the spontaneous combustion analysis module. The whole system is simple in structure, convenient to operate, low in cost and convenient to apply and popularize.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a self-ignition early warning system for charging piles to monitor and charge electric vehicles. Background technique [0002] With the development of new energy electric vehicles, the number of electric vehicles has increased year by year, and more and more people have shifted from paying attention to driving mileage to paying more attention to driving safety. In recent years, frequent spontaneous combustion accidents of electric vehicles have also made charging safety issues More and more are on the agenda. At present, most of the existing charging equipment on the market is concerned with the charging rate. The charging power of the charging pile is getting higher and higher. Excessive charging power will cause the electric vehicle battery to heat up rapidly and increase the risk of spontaneous combustion of the battery on the other hand. The existing charging piles basical...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a self-ignition early warning system for charging piles to monitor and charge electric vehicles, which solves the problems of the existing battery charging process of electric vehicles, mainly relying on the BMS system for protection, single protection form, and low safety.

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