A process for the tire air pressure measurement and - evaluation with an assignment of positions of the wheels and the tire air pressure measuring system

摘要

In the case of a process for the tire air pressure measurement and - evaluation with an assignment of positions of the wheels (i, ii, iii, iv) of a vehicle (1) for the evaluation in a tire air pressure measuring system, each wheel (2) of the vehicle (1) an air pressure control device (10), a lf - receiver (11), in particular a magnetic field strength of the receiver, an evaluation unit (13), an rf - transmitting device (12) and associated with an individual radke regulation. The lf - receiver (11) receives electrical lf - signals from a lf - transmitting device (4) of a in the vehicle (1) arranged central processing unit (3), the evaluation unit (13) evaluates the received signal strengths determined and from this a wheel speed and the rf - transmitting device (12) of the wheel (2) transmits rf - signals with information on the wheel rpm and the individual radke regulation to the central unit (3) of the vehicle (1). The central processing unit (3) determines the position of the wheel (i, ii, iii or iv) of the wheel (2) with the aid of a measuring device (7) and assigns the air pressure control device (10) and their individual radke regulation of the known wheel position (i, ii, iii or iv) on the vehicle (1) to. A tire air pressure measuring system has a in a vehicle (1), which are arranged in a central processing unit (3) with a lf - transmitting device (4), an rf - receiving device (5) and a central evaluation device (6) on. In addition, a in each case on a wheel (2) of the vehicle (1) arranged air pressure control device (10), lf - receiving device (11), rf - transmitting device (12) and evaluation unit (13) for determining a rotational speed with reference to a periodically changing thickness of the received lf - signal, as well as a measuring device (7) for measuring the wheel rotational speed at each wheel (2) and / or for determining the provided curve.