According to incomplete statistics, 42% of traffic accidents in expressway are caused by high-speed puncture, and the death rate of high-speed puncture above 160 km/h is close to 100%. High-speed puncture has become the "number one killer" of traffic accidents in expressway, in which the driver's untimely response after the puncture is the fundamental reason why the puncture has evolved into a traffic accident tragedy.
As we all know, the tire pressure changes with the change of temperature, and it will be abundant in winter. If the tire pressure is insufficient, it is likely to lead to a flat tire. In general, the probability of puncture is high. If the tire continues to run under the condition of air leakage, the sidewall of the tire will be deformed. After driving for a long time, a lot of heat will accumulate inside the tire, which will eventually lead to the change of air pressure inside the tire, which will lead to a puncture.
In recent years, a new technology is becoming popular, which is called TESD. Its basic principle is: TESD is installed in the wheel groove, which effectively fills the difference in the inner diameter of the rim and avoids the possibility that the tire will be caught in the groove bottom or separated from the rim after losing pressure; The rubber pad is effectively supported by the deflated tire to prevent the metal hub from sliding in direct contact. The convex mechanism on the device makes the wheel rim form a reliable gear structure, which is closely engaged with the deflated tire. The wheel in "crawler transmission mode" can also transmit the driving force, steering force and braking force to the ground normally after the tire burst. When the vehicle has a flat tire or serious pressure loss, TESD emergency safety device allows the driver to control the direction and braking of the vehicle safely, thus avoiding accidents.