Multi-information fusion vehicle battery box fire early warning and prevention and control method and system

Abstract

The invention provides a multi-information fusion vehicle battery box fire early warning and prevention and control method and system. The control method comprises the following steps that (1) a controller obtains a VOC initial value and an initial environment detection value at a set moment after starting; (2) judging whether the environment of the battery box at the set moment is normal or not; (3) recording the VOC initial value obtained in the step (1), taking the VOC initial value as a compensation value, performing compensation correction on all VOC early warning thresholds in the early warning trigger conditions, and updating the early warning trigger conditions; according to the multi-information fusion vehicle battery box fire early warning and prevention and control method and system, when the system is started, namely the system is powered on for self-inspection, the OVC early warning threshold value is adjusted, VOC sensor data processing is integrated with the environment intelligent learning technology, the early warning threshold value is dynamically adjusted according to the environment, and the system is more intelligent. False alarm caused by environmental influence is avoided, and influence caused by parameter difference of different batches of sensors is eliminated.

Description

technical field [0001] The invention relates to vehicle fire early warning and prevention and control technology, in particular to a multi-information fusion vehicle battery box fire early warning and prevention and control method and system. Background technique [0002] With lithium-ion batteries or supercapacitors as the power source of new energy vehicles, it brings the problem of fire caused by thermal runaway of the battery box. The battery box (battery container) fire warning and fire extinguishing control system in the prior art includes a controller and a sensor. The sensor is used to detect the internal environment of the battery box and send environmental detection data to the controller. The sensor types include temperature sensors, gas Sensors (such as co sensors), particle sensors (that is, smoke sensors), VOC sensors (that is, volatile organic compound sensors, used to measure the concentration of organic volatiles in the environment, organic volatiles such as...

AI Technical Summary

Problems solved by technology

The above-mentioned control system for vehicle battery box fire warning and fire extinguishing for multi-information fusion generally has the following problems: because the internal environment of the battery box will change with the time of use of the vehicle and battery, the existing control system lacks the basis for changes in the environment of the battery box However, the means of dynamic adjustment can easily lead to false alarms or wrong fire extinguishing actions.

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