Real time tyre model parameter identification

Tyre models are an essential requirement for the design and development of automotive suspensions. In the analysis of vehicle traction, braking and handling, empirical tyre models, parameterised from tyre rig tests, have proved to be the most successful. With the introduction of traction and stability systems instrumentation is now available on most vehicles which opens the possibility of parameterising the tyre models in real time. A fully parameterised real time tyre model would improve traction and stability algorithms, provide a means to monitor tyre condition and information on tyre performance deterioration with age and wear. This paper reviews the status of tyre modelling, and techniques which could be used to parameterise the models in real time.