| TIRE WEAR ESTIMATION BASED ON NONLINEAR LATERAL DYNAMIC OF MULTI-AXLE STEERING VEHICLE |
| Xiang Chen, Nan Xu, Konghui Guo |
| Jilin University |
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| ABSTRACT |
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This paper presents a novel nonlinear dynamic model of a multi-axle steering vehicle to estimate the lateral wear amount of tires. Firstly, a 3DOF nonlinear vehicle dynamic model is developed, including dynamic models of the hydropneumatic suspension, tire, steering system and toe angle. The tire lateral wear model is then built and integrated into the developed vehicle model. Based on the comparison of experimental and simulation results, the nonlinear model is proved to be better than a linear model for the tire wear calculation. In addition, the effects of different initial toe angles on tire wear are analyzed. As simulation results shown, the impact of the dynamic toe angle on the tire wear is significant. The tire wear amount will be much larger than that caused by normal wear if the initial toe angle increases to 1 |
| Key Words:
Tire wear, Multi-axle steering vehicle, Nonlinear model, Lateral dynamic, Toe angle |
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