A method of associating tire pressure monitoring devices with the various positions of a number of wheels of a vehicle

摘要

The invention relates to a method for assigning tire pressure control devices of a tire pressure control system of a vehicle to the various positions, at each of which a wheel of the vehicle is mounted. First sensors, which are permanently assigned to the wheel positions, repeatedly deliver a measured value M1, which is a measure of the speed of the wheel to which the respective first sensor is assigned. In each tire pressure control device, the course of a measured variable, from which the speed of the associated wheel can be derived, is recorded point by point using a second sensor over a predetermined angle of rotation φ of the wheel, depending on the time, subjected to low-pass filtering in a subsequent first time interval Δt1 the filtered course of the measured variable determines a second measured value M2, which is a measure of the speed or the angular speed of the associated wheel. At the end of a second time interval .DELTA.t2, the duration of which is not less than the first time interval .DELTA.t1, each tire pressure control device transmits the second measured value M2 together with an identifier of the tire pressure control device to a central unit; As a result of this transmission, the second measured values M2 transmitted by the tire pressure control devices are compared in the central unit with the measured values M1 recorded by the first sensors of all wheels in a timely manner, and the identifier of the tire pressure control device is stored under the wheel position in which the measured value M1 supplied by the first sensor is best corresponds to the measured value M2.