What should I do if the thermal control of electric vehicles is out of control? Tucki put forward a coup to solve the hidden danger of spontaneous combustion.

[car home? In recent years, electric vehicles have developed rapidly, but problems such as spontaneous combustion and fire have also become the focus of public attention. Therefore, the thermal runaway protection technology of power battery components has become one of the key research topics in the industry. A few days ago, Xpeng Motors applied to China National Intellectual Property Administration for a patent for a thermal runaway protection method for electric vehicles, which can extinguish the fire of the power battery assembly when the vehicle is out of control.

The patent applied by Xpeng Motors is mainly to automatically sense the fire extinguishing device carried in the car when the thermal control of the car is out of control, and directly extinguish the power battery, thus reducing the risk of car explosion. According to the patent information, Xpeng Motors thermal runaway protection system is mainly composed of sensor integrated device, liquid storage tank, pressure relief valve, power device, internal fire extinguishing material storage device and activation control unit.

According to the principle, when the sensor senses the thermal runaway detection signal of the power battery, whether the power battery is on fire is judged according to the thermal runaway detection signal, and if it is judged that there is no fire, the vehicle controller will upload the signal to the cloud center; If it is judged that there is a fire, the fire extinguishing device will be started to extinguish the power battery.

At present, Xpeng Motors has not disclosed when this patent will enter the mass production stage. But once it enters the practical application stage, this technology will play an important role in promoting battery safety. Battery safety is related to the core interests of users. Judging from the patent information that Xpeng Motors applied for this time, enterprises have always attached great importance to improving the performance of power batteries. (Text/car home? Li Zhengguang)