Direct determination of the maximum grip coefficient on the basis of measurement of the circumferential extension in a sidewall of a tire
First Claim
Patent Images
1. A method of determining the grip coefficient μ
- in the contact area of a tire on a road, comprising the steps of;
selecting a plurality of points in space that are fixed in a reference frame associated with the vehicle), which plurality of points lie at mutually different azimuths along a circumference in at least one sidewall of the tire, obtaining a corresponding number of measurements of circumferential distance variation at the plurality of points when the tire is rolling on the road, and determining from the measurement signals a grip coefficient μ
for the tire contact area on the road.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of determining the grip coefficient μ in the contact area of a tire on a road includes the steps of selecting a plurality of fixed points in space (that is to say ones that are fixed in the reference frame associated with the vehicle) which points lie at different azimuths along the circumference in at least one sidewall of the tire, obtaining a corresponding number of measurements of circumferential distance variation (extension or contraction) at these fixed points when the tire is rolling on the road, and the measurement signals are processed so as to extract the grip coefficient μ.
-
Citations
11 Claims
-
1. A method of determining the grip coefficient μ
- in the contact area of a tire on a road, comprising the steps of;
selecting a plurality of points in space that are fixed in a reference frame associated with the vehicle), which plurality of points lie at mutually different azimuths along a circumference in at least one sidewall of the tire, obtaining a corresponding number of measurements of circumferential distance variation at the plurality of points when the tire is rolling on the road, and determining from the measurement signals a grip coefficient μ
for the tire contact area on the road. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- in the contact area of a tire on a road, comprising the steps of;
Specification