The invention discloses a vehicle explosion-proof battery scheme and system. The scheme comprises the following steps: S10, judging whether a battery management system is in a wake-up state, if yes, carrying out S20, and if not, carrying out S30; S20, judging whether the information, such as the single battery pack voltage, the temperature and the battery pack air pressure sent by a slave board reaches a safety threshold value point or not through the battery management system mainboard, if so, carrying out S21, and if not, returning to the S10; S30, detecting whether the air pressure in the battery pack reaches a safety threshold point or not through an air pressure sensor, if so, executing S40, and if not, returning to the S10; and S40, opening a fire hydrant, and performing rapid fire extinguishing and cooling work on the on-fire battery pack. Key parameters such as air pressure, insulation resistance, temperature and current are monitored in real time through the battery management system in the control strategy level, fault processing is carried out when a power battery system is abnormal, and a fire hydrant can be actively opened to prevent thermal runaway spreading of a battery pack when thermal runaway happens to the battery system.
本发明公开了一种车用防爆电池方案及系统,包括以下步骤,步骤S10:判断电池管理系统是否处于唤醒的状态,若是则进行步骤S20,若否则进行步骤S30;步骤S20:通过电池管理系统主板判断从板发送的电池包单体电压、温度、电池包内气压等信息达到安全阈值点,若是则进行步骤S21,若否则回到步骤S10;步骤S30:通过气压传感器检测电池包内气压是否达到安全阈值点,若是则进行步骤S40,若否则回到步骤S10;步骤S40:打开消防栓,对着火后的电池包进行快速灭火降温工作。通过电池管理系统控制策略层面实时监测气压、绝缘阻值、温度、电流等关键参数,在动力电池系统异常时进行故障处理,且当电池系统发生热失控时能主动打开消防栓阻止电池包的热失控蔓延。
Vehicle explosion-proof battery scheme and system
一种车用防爆电池方案及系统
2021-09-14
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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