Federal regulations have required some sort of computerized tire-pressure monitoring system in new cars since the 2007 model year. Most of these are active types that employ a sensor mounted to each wheel, which in turn can relay pressures or warnings via the dashboard.
As both a maker of tires and electronic systems,
Continental is taking a more integrated approach. It plans to mount the sensors to the inside of tires instead of the current practice of mounting them to the wheels.
By coupling the sensor to the tire and adding a bit of memory, the tire-pressure sensor (TPS) will be able to inform the car of specific info about the type of tire in use. For example, it would allow the car’s computer to adjust the top-speed governor to match the speed rating of the tires. This would eliminate the warning stickers placed on the speedometers of cars in Europe when snow tires with lesser speed ratings are fitted to fast cars. The system could also keep track of the location of each tire and when it was fitted, thereby fixing rotation intervals and tracking tire mileage and expected life.
here’s an accelerometer in every current TPS to detect wheel motion and allow the sensor