| SLIDING-MODE-BASED PARAMETER IDENTIFICATION WITH APPLICATION TO TIRE PRESSURE AND TIRE–ROAD FRICTION |
| D.-J. LEE, Y.-S. PARK |
| KAIST |
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| ABSTRACT |
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This paper presents a method of simultaneous estimation of tire pressure and tire?road friction. A sliding-mode scheme is designed to identify the system state and the parameter variation of a torsional tire system, which greatly depend on the change in tire pressure. Then, the recursive least-squares method with a forgetting facto is used to estimate the parameter variations of the tire system and the tire?road friction force without a friction model using the information retrieved from the equivalent input for sliding motion. A simulation study is performed to illustrate the effectiveness of the proposed method. |
| Key Words:
Sliding-mode observer, Recursive least-squares method, Tire torsion model, TPMS |
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