What do you think of the tire barometer?

Last week, my office worker chose tires for his car, so after consulting me, I finally chose Goodyear 90%. After all, my colleague's car is a family grocery car, so it is very suitable to choose this kind of tire with long mileage and quiet reinforcement. Moreover, at the beginning of development, Jiucheng also chose corresponding structural reinforcement methods according to domestic road conditions, which improved the overall strength.

What do you think of the tire barometer?

Last week, my office worker chose tires for his car, so after consulting me, I finally chose Goodyear 90%. After all, my colleague's car is a family grocery car, so it is very suitable to choose this kind of tire with long mileage and quiet reinforcement. Moreover, at the beginning of development, Jiucheng also chose corresponding structural reinforcement methods according to domestic road conditions, which improved the overall strength.

Originally, I chose tires, but this colleague usually likes to study some knowledge about cars. When he got a new tire, he started his research again (my mother …). No, he asked me two questions in succession. First of all, after the tire rolls, the pressure will rise, for example, from 2.5 kg (the unit of "kg" is used here, after all, we want to be close to the world) to 2.8 kg, and then the tire pressure will be monitored and alerted. Is it too much pressure? Second, tire pressure monitoring and tire pressure gauge readings are different. What data are correct?

The higher the rolling pressure of the tire,

So how to accurately read the tire pressure?

First of all, the answer to the first question is: At any time, tire pressure refers to "cold pressure". That is, the static tire pressure when the vehicle is stationary for more than 4 hours. This is the real "tire pressure". So it is usually the most convenient and accurate thing for us to check the tire pressure before going to work in the morning.

When the car is driving, the wheels will keep rolling, the tire rubber will keep rubbing the ground, and the rubber on the side of the tire will keep rubbing, so the tire will slowly heat up. When the temperature rises, the air inside the tire will naturally be heated and the pressure will naturally increase.

Usually, from a complete standstill for one night to continuous rolling for one hour, the tire pressure will increase by about 0.3 kg. For example, the cold compress pressure is 2.5 kg, and the pressure has risen to 2.8 kg after one hour of washing, which is completely normal. Many car owners are afraid because the tire pressure monitoring system shows that the tire pressure is getting higher and higher, which is completely unnecessary.

Does the tire pressure alarm sound during driving?

Is it really dangerous or unusable?

In the past, some old drivers might check the tire pressure before driving, and then go on the road with peace of mind. Tire pressure monitoring is becoming more and more popular now. Car owners can see the current pressure on their tires all the time, but they are beginning to get scared. In fact, it is largely because they will not use the "upward pressure alarm" function of tire pressure monitoring.

For example, my colleague's tire pressure monitoring actually called the police when the tire pressure reached 2.8kg, obviously because the pressure alarm point was set too low. For example, Volkswagen LaVida, Sagitar and other common models, let's observe the tire pressure value recommended by Volkswagen's original factory. Five people are fully loaded, and the standard tire pressure is already 2.8 kg.

Therefore, the factory preset alarm point of tire pressure monitoring is usually 3.2kg. When the tire pressure reaches 3.2kg after continuous rolling, it will continuously alarm the owner. Therefore, if the owner finds that the alarm setting of tire pressure monitoring is unreasonable, he can adjust it according to the instructions.

Same tire, different pressure gauges,

Incredibly different readings?

Then the second question is about the error of the tire pressure gauge. Indeed, some careful drivers will find that our own car has a tire repair. We asked the tire shop to hit the tire pressure to 2.5 kg. It is clear that the tire pressure gauge in the store has reached 2.5, and then the tire pressure monitoring system of our car shows that the tire pressure is 2.2 kg. So who is not allowed?

It's simple! -It's a tire pressure gauge in the store. In fact, if you look closely, you will find that there are two kinds of tire pressure tables. One is a pointer, and the other is a digital display electron. The error of the former is often difficult to control. Using the same two pointer meters, the data obtained by testing the same tire may be completely different. And digital instruments are much more accurate and reliable!

The pointer error is large, so it is recommended to use a digital table.

Meanwhile, tire pressure monitoring is very accurate.

After all, mechanical pointer instrument works by the elastic principle of metal reed, and the instrument is not allowed after metal aging. Therefore, the error problem of mechanical pointer table has not been solved. On the contrary, the digital instrument working according to the principle of electronic pressure sensor is much more stable and accurate. In particular, instruments with mainstream circuit schemes such as Infineon generally do not have much error.

The working principle of our vehicle tire pressure monitoring system is actually similar to that of a digital pressure gauge (except that indirect tire pressure monitoring monitors wheel speed! ) is nothing more than a "wireless" digital pressure gauge. The pressure signal is read by wireless signal and then displayed. Therefore, the reading of the vehicle-mounted "direct" tire pressure monitoring system is very accurate! Well, today's knowledge popularization is over. In hot summer, riders should pay attention to tire pressure management and improve the safety factor!

What does tire pressure alarm mean?

Tire pressure alarm is to detect tire pressure and remind the car to stop and check. Tire pressure monitoring function and alarm elimination method are as follows:

Tire pressure monitoring function:

Tire pressure monitoring system can not only give an alarm when the tire is under high pressure, low pressure and high temperature, but also remind the owner to pay attention to driving safety, and help the owner to save fuel and money, and become a low-carbon and environmentally-friendly car family. Through the tire pressure monitoring system, we can know the tire condition at any time, prevent tire puncture, save fuel and protect the environment.

Methods of eliminating tire pressure alarm;

Check whether the tire pressure is normal. If there is any problem, please adjust the standard tire pressure and run a few kilometers on the road. Generally, the computer will automatically correct and reset at this time. Yes, after confirming that the tire pressure is normal, go to the automobile service shop to check the tire pressure sensor and eliminate the fault code. Manual reset needs to find the setting key in the center console.

How to treat tire barometer @20 19