Patent ID: 8180523
Filing Date: 2012-05-15
Classification: B60C

Abstract:
1. A method for detecting a pressure loss in at least one of a plurality of motor vehicle tires, the method comprising the steps of: detecting a pressure loss in at least one of a plurality of motor vehicle tires due to a change of a rolling circumference of the at least one of a plurality of motor vehicle tires; calculating at least two different parameters from the rolling circumference of the at least one of a plurality of motor vehicle tires, wherein the at least two different parameters are calculated depending at least on at least a wheel torque; and evaluating the at least two different parameters to detect pressure loss on the at least one of a plurality of motor vehicle tires, wherein the at least two different parameters are at least of two of diagonal wise (DIAG), sidewise (SIDE), or axlewise (AXLE), wherein a gradient of the parameter axlewise (AXLE) is evaluated as a function of the wheel torque at a constant vehicle speed to determine whether a change of the gradient exceeds a threshold, and the pressure loss is detected if the gradient exceeds the threshold.