Patent ID: 6285280
Filing Date: 2001-09-04
Classification: B60C

Abstract:
A method for detecting loss of pressure in a tire of a motor vehicle having first and second wheels on a driven axle and a tire on each of the first and second wheels, the method comprising:measuring the wheel speeds of the first wheel and the second wheel a plurality of times n;calculating a difference in wheel speed, NORMDIFF, between the first wheel and the second wheel for each of the plurality of times n;reading a wheel force value, F, for the first and second wheels for each of the plurality of times n;pairing each NORMDIFF value with the corresponding F value;performing a linear regression on the n pairings of the NORMDIFF values and the F values to determine the slope of a best-fit line; andanalyzing the slope of the best-fit line to determine whether a tire on one of the first and the second wheels is deflated.