An approach of state space modelling for indirect tire pressure monitoring

Abstract

In this paper, dynamical vehicle models and Time dependent State Space model have successfully been used to detect tire pressure losses(non observabilty). When the pressure is decreased in a tire, the corresponding wheel radius is reduced and the angular velocity increases. The basic idea behind this paper, is to indirectly estimate the wheel radius via secondary existing sensors. Two dynamical vehicle models, in which the relative wheel radius is included as model parameters, are formed. With these models any combination of pressure loss in the tires can be detected