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How Truck Tire Sensors Can Prevent Tire Blowouts

Posted on 22 March 2012

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Whether you are driving a car or a truck, underinflated tires can cost considerable money both in higher fuel costs and shorter tread life. If you are driving a truck for work than under-inflated tires can lead to lower productivity by increasing vehicle downtime and repair.  There is another serious consequence of under-inflated tires. Under-inflated tires can result in tire blowout due to the extra friction and heat that is produced when a tire is under-inflated. This can result in serious accidents and the larger the vehicle the more potential for damage.

Truck tire pressure sensors provide the driver with the opportunity to fix an incorrectly inflated tire before a dangerous blowout occurs. A device that is used to measure tire pressures is called a tire pressure monitor system and these systems have become increasingly common in passenger vehicles as well as trucks.

With direct tire pressure monitoring systems (dTPMS) the sensors are located externally and inside the truck tire. The sensors can detect the pressure in each of the tires and send a warning to the driver should a tires pressure go beyond the recommended limit. They can also send data to an onboard monitor so that tire pressure can be monitored from within the vehicle. The advantage of direct tire pressure monitoring systems is that they can provide accurate pressure values for each individual tire. The disadvantage is that the sensors require batteries and replacing a battery involves removing the truck tire.

Indirect tire pressure monitoring systems (iTPMS) use a different method for monitoring tire pressure. Instead of physical sensors within each tire they measure wheel rotation speeds and other signals available from outside of the tire. By measuring changes in tire rotation speeds they can provide a warning to the driver should the truck tires pressure fall too low. While this method is more user-friendly and does not involve battery replacement they do not provide such accurate tire pressure readings as the direct tire pressure monitoring systems.

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