The patent applied by Guangzhou Xpeng Motors Technology Co., Ltd. will provide an electric vehicle and its thermal runaway protection method, which mainly includes power battery assembly, active fire protection module and fire extinguishing device. The active fire control module comprises a sensor integrated device and a control module arranged in the power battery assembly; The sensor integration device is used for detecting and acquiring the thermal runaway detection signal of the power battery assembly. The control module judges whether thermal control occurs in the power battery assembly according to the thermal control detection signal, and outputs the judgment result, and when the judgment result is that thermal control occurs, controls the fire extinguishing device to start extinguishing the power battery assembly.
The main operation flow of the patented thermal runaway protection system is to obtain the thermal runaway detection signal of the power battery assembly of the electric vehicle, judge whether the power battery assembly is thermally runaway according to the thermal runaway detection signal and output the judgment result. When the judgment result is thermal runaway, control the fire extinguishing device to start extinguishing the power battery assembly, control the dashboard of the electric vehicle to display the thermal runaway information or reminder information, remind the driver to leave the cab of the electric vehicle, communicate with the external cloud center and upload the judgment result to the cloud center.
Editor's comment:
In recent years, new energy vehicles (including pure electric vehicles, hybrid electric vehicles, fuel cell vehicles, extended-range electric vehicles, etc.). ) has developed rapidly. Among them, the thermal runaway protection technology of new energy vehicle power battery assembly has become one of the key research topics in the industry. Xpeng Motors has applied for a patent for electric vehicle and its thermal runaway protection method for its brand-new model, which will effectively prevent the spontaneous combustion of power battery assembly.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.