Tire pressure plays an important role in improving the car's handling, saves fuel, extends the life of tires and ultimately significantly improves driving safety. It is almost impossible to check it without a special device. But the difference of only 0.3 bar can be critical and worsen the reaction of the car to braking or changing direction. And it can be dangerous, as well as low pressure and high. Deviation from the established norm can lead to disastrous results. For example, an excess can quite provoke a tire explosion right in the process of driving. There is only one conclusion: constant monitoring of tire pressure is required.
For control, pressure gauges are traditionally used, which are not always distinguished by high accuracy of readings. Almost every driver has such a device in the glove compartment, but few of them regularly use it. The measurement procedure itself is not a pleasure, and most drivers ignore this event. Currently, special systems are used to control tire pressure. They are included in the package only of expensive cars. However, you can purchase the system yourself and install it on a car. The benefits of using these devices are pretty obvious. In many cases, they can become a guarantor of traffic safety and save someone's life.
The structure of the automatic control system includes autonomous sensors of indications and an information block. Data is transmitted to the control module using a radio signal. A tire pressure sensor is installed on each wheel, and a control unit with a screen is mounted in the passenger compartment. The screen displays information about the status of the parameters separately for all wheels. If the current reading deviates from one of the tires outside the set interval, an alarm is triggered. At the request of the driver, it can be sound, light or complex. If the tire pressure sensor gives the current value within the specified interval, the system operates in a passive mode. The driver sets the permissible parameter values independently, depending on the specific car model and tires.
Depending on the brand of instruments, the time interval for measuring readings is set within 5-7 seconds. Information on the screen is updated either with a specified time interval or when the current pressure changes by 0.05-0.07 Bar from the previous one.
The weight of modern sensors for external use does not exceed 10 grams and not more than 35 grams - for internal. Each tire pressure sensor has its own autonomous battery, designed for continuous operation up to five to seven years, depending on the manufacturer.
Control systems are constantly being improved. Currently, devices are available that allow you to control not only the air pressure inside the wheel, but also its temperature. The principle of operation of the new systems is similar. The tire pressure sensor is made in a hybrid version and allows the measurement of pressure and temperature. The installation procedure of the system on the car is greatly simplified. Sensors are mounted quickly and do not require special skills, internal ones are mounted on a disk during tire mounting, and external ones are screwed onto a nipple instead of a cap.
It should be remembered that the tire pressure monitoring system installed on the car is an auxiliary tool and in no way can replace a person. In any case, for safety reasons, the driver should regularly check everything himself, and if there is a system on the car, in addition, monitor its performance.