ATIS (Automatic Tire inflation system) - Predictive Monitoring Plus Automatic Inflation

Brand-wide adoption of tire pressure monitoring systems (TPMS) has been happening gradually since 2007. The TPMS's main function is to alert drivers when one or more tires are underinflated. In addition to causing handling problems, underinflation raises the frequency of tire replacements and causes uneven and increased tire wear. Direct TPMS system uses the pressure monitoring sensors within each tire. It solely keeps track of the designated pressure levels; tire revolution data is not monitored.

WSS (wheels speed sensors) of the ABS system are the foundation of an indirect TPMS. These sensors track the speed at which each wheel rotates, and the data is compared with that of the other tires and other vehicle parameters. An underinflated wheel signals to the system with a quicker spinning wheel.

When a tire's pressure falls below a certain point, an Automatic Tire Inflation System (ATIS) uses pressurized air from the trailer's air brake system to inflate any tire. Each tire is isolated from the others by check valves in the pressure lines, preventing the pressure in one tire from being affected by an air leak in another. When the system is operating, the ATIS indicator will illuminate. Both tire pressure monitors and telematics (BT/RF/CAN/GPS and LTE connectivity) are intended to function with an ATIS system.

It takes a lot of time to inspect and adjust the inflation pressure on lengthy trailers and multi-axle vehicles; if you need to check and inflate twenty or more tires on a trailer, you should plan on an hour of downtime. During this time, a truck or trailer can travel 80 to 100 miles.

In order to provide drivers with the best possible performance, ATIS systems are made to provide them with tire information. All trailers built after July 2024, must comply with European requirements and have either TPMS or AITS. Usually, the Automatic Tire Inflation System (ATIS) is installed directly onto a truck's tires. Each tire has sensors, valves, and control units put on it; these are often integrated into the hub or wheel assembly. When the car is moving, these systems are meant to automatically alter the tire pressure to maintain the ideal levels of inflation based on real-time monitoring. ATIS contributes to increased fuel economy, longer tire life, improved vehicle stability, and a lower chance of tire-related accidents by guaranteeing correct tire inflation.

The air compressor fills the truck's air tanks with air when the air brake system is engaged. The ATIS control unit is one of the truck's many components to which the compressed air is routed after that. Based on information from pressure sensors or other monitoring equipment, the control unit adjusts the amount of air going to each tire. To guarantee a steady source of pressure, ATIS occasionally possesses its own compressor or air reservoir. This is particularly useful in scenarios where the truck's air brake system isn't actively applied, like when it is parked for a long time. On the other hand, the majority of vehicles' air brake system serves as the main supply of compressed air for ATIS.

All things considered, the hub-mounted inflator device makes it possible for direct and effective compressed air distribution to the tire, maintaining ideal tire pressure and improving overall vehicle performance and safety!