Method for allocating identifiers of wheel electronics of a tire pressure monitoring system of a vehicle to the positions of ABS sensors on the vehicle

摘要

Allocates identifiers of units of a tire pressure monitoring system to the positions of ABS-sensors which are each assigned to the wheels of the vehicle. The identifiers are contained in signals that are emitted by the units. Each unit, which is called a wheel electronic, has a pressure sensor, which is sensitive to the tire pressure of the wheel, a motion sensor, which provides information on the rotation speed of the wheel, a memory with the individual identifier of the wheel stored therein, and a transmitter, which transmits signals only containing information on the rotation speed of the respective wheel, to a receiver. An evaluation device receives the transmitted identifier and compares the information on the rotation speed of the wheel transmitted along with the identifier, with rotation speed information, which were acquired by the ABS sensors for the same time span and transferred to the evaluation device.

主权项

1. A method for allocating identifiers of units of a tire pressure monitoring system of a vehicle to positions of ABS-sensors that are each assigned to one of the wheels of the vehicle, which units are hereinafter called wheel electronics and are attached to the wheels of the vehicle, the wheel electronics of each wheel comprising:
a pressure sensor, which is sensitive to the tire pressure of the wheel, a motion sensor for providing information on the rotation speed of the wheel, a memory with an individual identifier of the wheel electronics stored therein, and a transmitter for transmitting signals, which contain the individual identifier and the sensed information on the rotation speed of the respective wheel, the method comprising the following steps for each of the wheels: (a) obtaining the information on the rotation speed of the respective wheel for a time span; (b) for the same time span obtaining an information on the rotation speed of every wheel from the ABS sensor of every wheel; (c) transmitting signals containing the rotation speed information provided by the motion sensor in the wheel electronics of the respective wheel along with the identifier stored in the memory in the wheel electronics of the respective wheel, and also containing the rotation speed information provided by the ABS sensors, to a receiver, which is provided with or connected to an evaluation device and an antenna provided on the vehicle; (d) receiving in the evaluation device the signals transmitted from the wheel electronics of the specific wheel and from the ABS sensors; (e) comparing in the evaluation device the rotation speed information transmitted together with the identifier of the specific wheel with the rotation speed information provided by the various ABS sensors for the same time span for which the rotation speed information has been obtained by the motion sensor in the wheel electronics of said specific wheel; (f) allocating the identifier of the specific wheel to that ABS sensor the rotation speed information of which shows the best matching with the rotation speed information that was transmitted together with the identifier of the specific wheel; (g) repeating the steps (a) to (f) for the specific wheel until a series of identical allocations has been obtained, that are allocations of the identifier of the specific wheel to the position of the same ABS sensor; (h) storing in the memory that allocation of the identifier of the specific wheel to the position of said same ABS sensor which has been obtained more often than allocations of the identifier of the specific wheel to the position of another ABS sensors.