What is the working principle of Volkswagen's tire pressure monitoring system?
2 Answers
Volkswagen's tire pressure monitoring principle utilizes data transmitted by the ABS system sensors to monitor the rotational speed of each wheel and changes in their rolling circumference. If the rolling circumference of a particular wheel changes, the warning light will illuminate. Tire pressure monitoring involves real-time automatic monitoring of tire pressure during vehicle operation, with alerts for tire leaks and low pressure to ensure driving safety. When tire pressure is too high, it reduces the contact area between the tire and the ground, increasing the pressure the tire bears and affecting its grip. Additionally, when the vehicle passes over bumps or uneven roads, insufficient space inside the tire to absorb vibrations can compromise driving stability and ride comfort, increase impact on the suspension system, and raise the risk of tire blowouts, especially in high temperatures.
As an automotive technology enthusiast who frequently delves into car systems, I must say Volkswagen's tire pressure monitoring is quite fascinating. Instead of placing sensors directly inside the tires, it cleverly utilizes the existing ABS wheel speed sensors already installed on the vehicle. The principle works by calculating rotational speed differences between wheels: when a tire is underinflated, its actual diameter decreases, causing that wheel to rotate slightly faster during driving. The system detects this speed discrepancy and triggers a low-pressure warning light on the dashboard. This approach proves quite cost-effective as it requires no additional hardware, though it does have a minor limitation – activation only occurs above a certain speed threshold, typically around 30 km/h. Remember to periodically calibrate the system while driving, as maintaining proper tire pressure improves fuel efficiency and enhances safety. Personally, I find this system, while not perfect, exceptionally practical as an early warning tool, especially during long highway trips where it helps prevent blowout risks.
