Interpretation of the reasons for low tire pressure and tire burst

【The owner's family car knowledge】When the tire pressure is too high, the elasticity of the tire carcass will be significantly reduced, and the tire is prone to blowout after being impacted. Many people know this situation; however, when the tire pressure is too low, the risk of tire blowout is similar to that of the tire. When the pressure is too high, how many people know about this? What’s even more frightening is that there are even car owners who believe that “lower tire pressure in summer can blast tires”! It seems that this is another problem related to driving safety. It’s time for the truth man to be dispatched again. What are the causes of tire blowouts after the tire is running low? What are the real reasons for low tire pressure and tire blowout?

● What will be tested this time?

In order to see clearly how big the difference in tire temperature is after running for a certain distance between a flat tire and a fully-filled tire, Truthman finds a car, simulates the tire flat state, and actually measures the change in tire temperature.

● This test method and instrument

testing object:I found a test car. The original matching tire is Magis MA-651, the specification is 215/55 R16, and the standard tire pressure recommended by the manufacturer is 2.2BAR.

【The owner's family car knowledge】When the tire pressure is too high, the elasticity of the tire carcass will be significantly reduced, and the tire is prone to blowout after being impacted. Many people know this situation; however, when the tire pressure is too low, the risk of tire blowout is similar to that of the tire. When the pressure is too high, how many people know about this? What’s even more frightening is that there are even car owners who believe that “lower tire pressure in summer can blast tires”! It seems that this is another problem related to driving safety. It’s time for the truth man to be dispatched again. What are the causes of tire blowouts after the tire is running low? What are the real reasons for low tire pressure and tire blowout?

● What will be tested this time?

In order to see clearly how big the difference in tire temperature is after running for a certain distance between a flat tire and a fully-filled tire, Truthman finds a car, simulates the tire flat state, and actually measures the change in tire temperature.

● This test method and instrument

testing object:I found a test car. The original matching tire is Magis MA-651, the specification is 215/55 R16, and the standard tire pressure recommended by the manufacturer is 2.2BAR.

test instrument:Infrared thermometer.

test method:First let the assistant reduce the tire pressure of two tires of the vehicle by different values. At this time, the tires can be slightly flattened with the naked eye.

After lowering the tire pressure, we will record the initial tire temperature of the four tires and check the condition of the car to prepare for the test.

Next, the assistant will drive about 50 kilometers in accordance with the speed limit on urban roads and urban expressways, and then measure the tire temperature of the four tires again.

● Test process: let the losing tires run 50 kilometers with the car

After receiving the task, the assistant of the truth man first reduced the tire pressure of the two tires according to the plan, and then drove more than 50 kilometers on urban roads and urban expressways.

In the driving process, the assistant not only concentrates on controlling the vehicle, but also pays attention to the driving experience when the tires of the vehicle are inflated. When the angry left rear wheel passes on an undulating road, you will feel a noticeable bounce in the car. The "abnormal tire pressure" warning light is on all the way.