TIRE WEAR COMPENSATED LOAD ESTIMATION SYSTEM AND METHOD

摘要

A system and method of estimating a load bearing on a vehicle tire includes an inflation pressure measuring sensor for measuring an inflation pressure level within a tire cavity; a contact patch length sensor measuring the rolling contact patch length of the tire; a tire rolling speed sensor measuring a rolling speed of the tire; and a tire wear state estimation calculator estimating a tire wear state of a tread of the tire. An artificial neural network estimates a tire load from the contact patch length, the inflation pressure level, and the tire rolling speed by utilizing as a compensation factor input the estimated tire wear state.

主权项

1. A system of estimating a load bearing on a vehicle tire, comprising:
a vehicle tire having a tire cavity and supporting a load; an inflation pressure measuring sensor attached to the tire for measuring an inflation pressure level within the tire cavity; a contact patch length sensor attached to the tire for measuring the contact patch length of the tire rolling against a ground surface carrying a tire load; a tire rolling speed sensor mounted to the vehicle for measuring a rolling speed of the tire; a tire wear state estimation calculator for estimating a tire wear state of a tread of the tire; and a tire load calculator for estimating a tire load from the contact patch length, the inflation pressure level, and the tire rolling speed; the tire load calculator in the estimation of the tire load operably utilizing as a compensation factor input the estimated tire wear state.