What is TPMS tyre pressure monitor sensor

2020/03/03

What is TPMS tyre pressure monitor sensor

TPMS,means tyre pressure monitor sensor,also called tire pressure monitoring system.

ezitown tpms
ezitown tpms

This technology can automatically monitor various conditions of the tire in real time by recording tire speed or electronic sensors installed in the tire, which can provide effective safety guarantee for driving.

This technology can automatically monitor various conditions of the tire in real time by recording tire speed or electronic sensors installed in the tire, which can provide effective safety guarantee for driving.

What is TPMS tyre pressure monitor sensor

System category editing
There are two types of tire pressure monitoring systems: one is an indirect tire pressure monitoring system that determines whether the tire is abnormal based on the tire speed difference; the other is a direct tire pressure monitoring system that uses four additional tires inside the tire. A tire pressure monitoring sensor automatically monitors tire pressure and temperature in real time while the car is stationary or driving, and timely alerts the tires to high pressure, low pressure, and high temperature to avoid traffic accidents caused by tire failures to ensure driving safety.
Indirect tire pressure monitoring system
Indirect tire pressure monitoring system is also called WSBTPMS. WSBTPMS needs to pass the car
Tire pressure monitoring
Tire pressure monitoring
The wheel speed sensor of the ABS anti-lock braking system compares the speed difference between tires to achieve the purpose of monitoring tire pressure. ABS uses wheel speed sensors to determine whether the wheels are locked, and thus decides whether to activate the anti-lock system. When the tire pressure decreases, the weight of the vehicle will make the tire diameter smaller and the speed of the vehicle will change. The speed change will trigger the WSB alarm system to remind the owner to pay attention to the insufficient tire pressure. Therefore, indirect TPMS belongs to passive TPMS.
Direct tire pressure monitoring system
The direct tire pressure monitoring system is also called PSBTPMS. PSBTPMS is a system that uses a pressure sensor installed on the tire to measure the pressure and temperature of the tire, and uses a wireless transmitter to send pressure information from the inside of the tire to a central receiver module. Display tire pressure data. When the tire is under high pressure, low pressure and high temperature, the system will alarm the car owner. In addition, the owner can set the tire pressure alarm value range and temperature alarm value based on the vehicle type, car habits and geographical location. Therefore, direct TPMS belongs to active TPMS.
System comparison
The direct system can provide more advanced functions. The actual instantaneous pressure inside each tire can be measured at any time, and it is easy to determine the faulty tire. The cost of the indirect system is relatively low. Cars already equipped with 4-wheel ABS (1 wheel speed sensor per tire) only need to upgrade the software. However, the indirect system is not as accurate as the direct system, it cannot determine the faulty tire at all, and the system calibration is extremely complicated. In some cases, the system will not work properly, for example, when the two tire pressures of the same axle are low.
There is also a composite TPMS, which combines the advantages of the above two systems. It is equipped with direct sensors in two tires that are diagonal to each other, and is equipped with a 4-wheel indirect system. Compared with all direct systems, this hybrid system can reduce costs and overcome the disadvantage that the indirect system cannot detect multiple tires with too low air pressure at the same time. However, it still does not provide real-time data on actual pressure in all 4 tires like the direct system.
Reference Standard Editor
In Europe and the United States, the original car is gradually equipped with the original tire pressure monitoring system, which is directly integrated in the vehicle.
Tire pressure monitoring system
Tire pressure monitoring system
In the computer, it is displayed in the middle of the dashboard of the center console. In the North American tire pressure monitoring system regulations, it is explicitly required that the tire pressure monitoring system must respond within 2 minutes of an abnormal tire, and an alarm prompts the owner. And the regulations also specifically state that the tire pressure monitoring system display must alert the vehicle owner when the tire pressure monitoring sensor device signal in the tire is not received, or when the reception is unstable.
Many car owners may have no idea about the tire pressure. What kind of air pressure is safe? Viewing tire safety from the knowledge of tire pressure monitoring systems: The US High Speed ​​Commission stipulates that when tire tire pressure is less than 75% of the standard value, the tire pressure monitoring system must alert the owner of the tire, and the tire manufacturer data shows that the tire pressure is lower At 30%, the tire pressure monitoring system needs to alert the car owner. It can be seen that when the tire pressure drops between 25% and 30% of the standard value of the air pressure on the type plate of the vehicle, driving is safe.
System role editing
The tire pressure monitoring system can not only alert the owner to drive when the tire is under high pressure, low pressure, or high temperature.
Sonata tire pressure monitoring
Sonata tire pressure monitoring
It is safe, and it can also help car owners save fuel and money, and become a low-carbon and environmentally friendly car.
The TPMS-related statistics of the tire pressure monitoring system show that a car running out of air will consume 3.3% more fuel. Many car owners may not know that the tires are leaking slowly and naturally, and the lack of tire pressure is unknown.
Through the tire pressure monitoring system to keep track of tire conditions, prevent tire bursts, save fuel and protect the environment.
Specific application example of tire pressure monitoring system: This technology is used in middle and senior cars.
Way edit
1. Direct tire pressure monitoring: The direct tire pressure monitoring device uses a pressure sensor installed in each tire to directly measure the tire air pressure, and uses a wireless transmitter to send pressure information from the inside of the tire to a central receiver module. Then display the tire pressure data. When the tire pressure is too low or leaks, the system will automatically alarm.
2. Indirect tire pressure monitoring: The working principle of indirect tire pressure monitoring is that when the air pressure of a tire decreases, the weight of the vehicle will make the rolling radius of the wheel smaller, causing its speed to be faster than other wheels. By comparing the speed difference between tires, the purpose of monitoring tire pressure is achieved. Indirect tire alarm systems actually rely on calculating tire rolling radius to monitor air pressure.
3. Introduction of Tire Intelligent Monitoring System (TPMS): It combines the advantages of the above two systems. It is equipped with direct sensors in two tires that are diagonally opposite each other and a 4-wheel indirect system. Compared with all direct systems, this hybrid system can reduce costs and overcome the disadvantage that the indirect system cannot detect multiple tires with too low air pressure at the same time. However, it still does not provide real-time data on actual pressure in all 4 tires like the direct system.
Development Prospect Edit
The tire pressure monitoring system (TPMS) has become a hot spot for research and development in China’s automotive electronics industry.
Sonata tire pressure monitoring
Sonata tire pressure monitoring
Globally, 710 million tires are expected to require tire pressure monitoring sensors. US law requires that all passenger cars and light trucks sold in the United States from August 2007 must be equipped with a tire pressure monitoring system, and European regulations have also been issued. China is a big car consumer. I believe that the government will formulate similar regulations in the near future. The demand for TPMS is causing an emerging industry to emerge.
And like Corvette, BMW, Infiniti, volvo, chevrolet, Nissan nissan, Audi AUDI, Cadillac, Volkswagen VOLKAWAGEN, Kia KIA, Subaru SUBARU, Isuzu ISUZU, Mazda MAZDA, Ford FORD, Porsche PORSCHE, Hyundai Hyundai, Saab SAAB, Buick BUICK, Toyota TOYOTA, Land Rover LANDROVER, Lexus LEXUS and other companies use tire pressure monitoring system TPMS, which is equipped with tire pressure sensors on four wheels, directly sensing tire pressure, and can also monitor tire temperature. This approach is much more advanced and sensitive.
There are still many things that need to be improved in the tire pressure monitoring system. For indirect systems, the lack of air on the coaxial or more than two tires cannot be displayed; monitoring fails at speeds above 100 km / h. For direct systems, the stability and reliability of wireless signal transmission, the service life of sensors, the accuracy of alarm prompts (with or without false positives and false positives), and the pressure resistance of sensors are all in urgent need of improvement.

What is TPMS tyre pressure monitor sensor

 

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