Tire pressure management systems (TPMS) are fascinating. Ten years ago, people would have never even imagined of a device that could provide real-time data about their vehicle’s tires. We live in amazing era.
There are two different types of TPMS in the market.
Indirect TPMS typically fits over a wheel’s air intake valve. It has built in wheel speed sensors, the same sensors that the anti-lock brake system uses. These specialized sensors measure the rate of revolutions each wheel is making. This data is used by on-board computer systems to compare with each other and to other data such as vehicle speed.
Taking into account the rate of revolution of each wheel, the computer can calculate the relative size of the tires on your vehicle. When a wheel starts spinning faster than expected, the computer calculates that the tire is under-inflated and alert the driver accordingly.
An indirect tire pressure monitor is not like the Direct TPMS. It measures the speed at which the vehicle’s tires are rotating and sends signals to a computer. The computer, in turn, will notify the driver, via an indicator light, on an LCD display, or smartphone.
A Direct TPMS is much more complicated. It uses pressure monitoring sensors, installed inside each tire, that monitor pressure levels. The sensors in the Smart Signal direct TPMS can even provide tire temperature readings. The Smart Signal direct TMPS sends tire pressure and temperature data to a control module where it’s analyzed, interpreted, and, if tire pressure is lower or higher than it should be, transmitted directly to your LCD display, smartphone or other display. Smart Signal TPMS sends all of this data wirelessly. Each sensor has a unique serial number; this is how the system identifies each tire.
Properly inflated and well maintained tires are important safety measures that should not be neglected, regardless of the conditions.