What is the principle of automotive tire pressure monitoring?
2 Answers
The principle of automotive tire pressure monitoring depends on the type of tire pressure monitoring device: 1. Direct tire pressure monitoring device: Uses pressure sensors installed inside the tires to measure tire pressure, and wireless transmitters to send pressure information from inside the tire to a central receiver module. 2. Indirect tire pressure monitoring: When tire pressure decreases, the vehicle's weight causes the rolling radius of that tire to become smaller, and by comparing the rotational speed differences between tires, the system monitors tire pressure. The functions of tire pressure monitoring are: 1. Preventing accidents; 2. Extending tire lifespan; 3. Reducing wear on the suspension system.
The principle of tire pressure monitoring in cars mainly relies on sensors inside the vehicle to detect tire pressure in real time. Simply put, there are two methods: one is direct monitoring, where sensors are installed inside the tire or on the wheel hub, transmitting pressure data to the dashboard via wireless signals. If the pressure is below or above the standard value, a warning light will illuminate to remind you to check. The other is indirect monitoring, which uses the ABS system to monitor differences in wheel rotation speed to detect abnormal tire pressure, as a tire with low pressure will rotate differently. From my driving experience, I know this system is extremely practical. For example, excessively low pressure can cause a blowout or increased fuel consumption, and timely action can prevent accidents. I usually make it a habit to check once a month to ensure safe driving, especially before long trips—it's absolutely not something to overlook.
