Technology

How Self-inflating Tires Work

How Self-inflating Tires Work

They are used by the military, James Bond, Hummers, and the majority of truck drivers, and have been for years. Vehicles with self-inflating tires can adapt to the road’s current conditions for the best performance and safety.

Many consumer cars today come with pressure-monitoring devices, but without an outside air source, the driver has little control over the situation. There are many self-inflating tire systems available, however, the majority of them are primarily used in commercial and military settings. Of course, the CTIS system on the Hummer is the exception.

We’ll learn about some tire inflation devices in this post and examine the possibility of their availability for regular individuals driving typical cars.

How Self-inflating Tires Work

About 80% of vehicles on the road, according to AAA, are operating with one or more underinflated tires. Tires lose air as a result of normal driving, permeation, and temperature fluctuations throughout the year (particularly after striking potholes or curbs). In the winter, they may lose one to two psi (pounds per square inch), and even more in the summer. And a quick glance won’t reveal whether they are correctly inflated. A tire-pressure gauge is required. Underinflation is dangerous for your tires, your car’s handling, and your gas mileage, in addition to being bad for your tires.

The tread on tires wears down more quickly when they are underinflated. For every 20% that they are underinflated, you may drive 15 percent fewer miles on them, according to Goodyear. In addition to overheating more quickly than properly inflated tires, underinflated tires also suffer more tire damage. The fading regions below show where the tread has worn excessively.

Tires flatten at the bottom when they roll because they are flexible. After losing contact with the earth, this contact patch returns to its former shape. This rebound causes some friction and a wave of motion. The wave is stronger and the friction produced is greater when there is less air in the tire; friction produces heat. The rubber that keeps the cords of the tire together starts to melt if enough heat is produced, which leads to tire failure. For further information, see How Tires Work.

Your car’s engine has to work harder because an underinflated tire rolls with more resistance. According to AAA statistics, tires that are underinflated by as low as 2 psi result in a 10% reduction in fuel efficiency. This can result in additional petrol expenditures of several hundred dollars over the course of a year of driving.