The invention discloses a thermal runaway early warning system and method for a power battery, a vehicle and a storage medium, and the system comprises a smoke detector which is arranged in a battery pack of the power battery and is used for collecting the current smoke concentration of the battery pack; the smoke fault detector is used for detecting whether the smoke detector breaks down or not; the wake-up module is used for generating a wake-up signal when the current smoke concentration is greater than the preset concentration; and the battery management system is used for exiting the sleep mode according to the wake-up signal and executing a corresponding thermal runaway early warning action on the vehicle when the battery management system is in the sleep mode and the current smoke concentration is greater than the preset concentration, or executing the corresponding thermal runaway early warning action on the vehicle when the smoke fault detector detects a fault. Therefore, the technical problems that in the prior art, when the battery management system is in the dormant state, the battery management system completely depends on smoke or pressure wake-up signals of the external equipment, and once the external equipment is delayed or breaks down, early warning cannot be conducted in time, and the safety of the battery cannot be guaranteed are solved.
本申请公开了一种动力电池的热失控预警系统、方法、车辆及存储介质,该系统包括:设置于动力电池的电池包内的烟雾检测器,用于采集电池包的当前烟雾浓度;烟雾故障检测器,用于检测烟雾检测器是否发生故障;唤醒模块,用于在当前烟雾浓度大于预设浓度时,生成唤醒信号;以及电池管理系统,用于在处于休眠模式,且当前烟雾浓度大于预设浓度时,根据唤醒信号退出休眠模式,对车辆执行对应的热失控预警动作,或者烟雾故障检测器检测到故障时,对车辆执行对应的热失控预警动作。由此,解决了相关技术在电池管理系统休眠状态下,完全依赖外接设备烟雾或压力唤醒信号,一旦外接设备出现延时或者故障时,无法及时预警,无法保证电池的安全性等技术问题。
Thermal runaway early warning system and method for power battery, vehicle and storage medium
动力电池的热失控预警系统、方法、车辆及存储介质
2022-04-08
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / A62C FIRE-FIGHTING , Feuerbekämpfung / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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