Method and system for determining a tyre load during the running of a motor vehicle

摘要

A method for determining a load exerted on a tire, fitted on a vehicle, during running of the vehicle on a rolling surface, is disclosed. The method includes acquiring a first signal comprising a first signal portion representative of a radial deformation; measuring an amplitude of the radial deformation in the first signal portion; estimating a rotation speed of the tire corresponding to the radial deformation; estimating an inflation pressure of the tire corresponding to the radial deformation; and deriving the load exerted on the tire from the amplitude, the rotation speed, and the inflation pressure. The first signal portion is representative of the radial deformation to which a first tread area portion of the tire is subjected during passage of the first tread area portion through a contact region between the tire and the rolling surface. A system for determining the load exerted on the tire is also disclosed.

主权项

1. A system for determining a load exerted on a tyre, fitted on a vehicle, during running of the vehicle on a rolling surface, the system comprising:
a measuring device; a pressure sensor; a device for estimating a rotation speed of the tyre; and at least one processing unit; wherein the measuring device is adapted to acquire a signal representative of a deformation to which a first tread area portion of the tyre is subjected during passage of the first tread area portion through a contact region between the tyre and the rolling surface, wherein the pressure sensor is adapted to sense an inflation pressure of the tyre, wherein the at least one processing unit is adapted to determine an amplitude of a radial deformation in a first portion of the signal, and wherein the at least one processing unit also is adapted to derive the load exerted on the tyre from the rotation speed, the inflation pressure, and the amplitude.