As a key load-bearing part of heavyduty vehicle

the tire pressure should be supervised in real time and be adjusted through central tire inflation system to ensure safety driving. The common control algorithm based on pressure difference with calculation time will cause the actual value of tire pressure deviates greatly from the set value without considering the influence of dynamic pressure during tire inflation and deflation process. Based on the analysis of tire pressure characteristics

a fuzzy  compensation control algorithm which integrates checking and scheduling of inflation & deflation function was proposed to implement accurate adjusting tire pressure through fuzzy fast inflation and error compensation. Taking a 6×4 heavyduty vehicle as the application object

an AMESim-MATLAB co-simulation platform was set up to simulate and verify the control algorithm. The acquired tire pressure through CAN bus was taken as the input parameter for the central tire inflation system. Through simulation of fault injection test and loading verification

the test results have shown that the controller prototype based on the control algorithm can realize automatic control of the tire pressure of heavyduty vehicle

and the fault response time is less than the national recommended standard requirements.