Patent ID: 9168906
Filing Date: 2015-10-27
Classification: B60T,G01M

Abstract:
1. A method for determining efficiency of a tire-vehicle-ABS system comprising the steps of: (A) providing a vehicle with a wheel; (B) providing the vehicle with a first ABS controller that is operable to control braking of the wheel; (C) providing a first tire made according to a first specification; (D) defining a first tire-vehicle-ABS system as the combination of the vehicle, the first ABS controller and the first tire; (E) inflating the first tire to a first inflation pressure; (F) collecting mu-slip data for the first tire at the first inflation pressure; (G) providing the first tire at the first inflation pressure on the wheel; (H) performing a first stopping distance test on the first tire-vehicle-ABS system under the conditions of step (G) to create stopping distance data; (I) inflating the first tire to a second inflation pressure; (J) collecting mu-slip data for the first tire at the second inflation pressure; (K) providing the first tire at the second inflation pressure on the wheel; (L) performing a second stopping distance test on the first tire-vehicle-ABS system under the conditions of step (K) to create stopping distance data; (M) using the collected mu-slip data from the first tire at the first and second inflation pressures to: (1) determine peak mu and slip ratio at peak mu; and, (2) create a data curve of normalized mu versus time; and, (N) using the data curve of normalized mu versus time to calculate efficiency of the first tire-vehicle-ABS system.