Huf Baolong Electronics Bretten Gmbh

Other

Huf Hülsbeck & Fürst Gmbh Co.kg

Markus Alexander

Norbert Heller

Markus Wagner

Ralf Kessler

Peter Brand

Yevgen Dementyev

Andreas Kraft

Jürgen Schönbeck

Thomas Kienzle

Thomas Eggers

A tire pressure monitoring unit is mounted on a vehicle wheel having a pressure and acceleration sensor. A method for assigning wheel positions includes pressure and acceleration data determined from the sensors. The pressure data and at least one piece of information derived from the acceleration data are transmitted wirelessly in a data telegram together with a characteristic identifier. Information concerning the reliability of the information derived from the acceleration data is acquired in the tire pressure monitoring unit on the basis of the measurements and is transmitted with the data telegram. A central evaluation unit considers a plurality of data telegrams and, taking account of data from the ABS sensors, assigns the individual tire pressure monitoring units to wheel positions. Data telegrams in which the reliability is higher receive a greater weighting, and data telegrams in which the reliability is smaller receive a smaller weighting.

Method for operating a tire pressure monitoring unit and tire pressure monitoring system

A method for assigning identifiers of wheel electronics to the positions of the wheels on the vehicle is disclosed. The wheel electronics send their individual identifier with information relating to the rotational direction of the wheel and to the occurrence of an impact on the wheel to a receiver. An evaluation unit: collects the identifiers and rotational direction information and the driving speed, and on this basis, differentiates between identifiers of wheel electronics on the left and right vehicle side; differentiates impacts reported from wheel electronics on the left vehicle side, from impacts reported from wheel electronics on the right vehicle side; measures the time between impact signals reported from wheel electronics on the left or on the right vehicle side; multiplies the measured time by the driving speed measuring during this time; and checks whether the length formed by the multiplication coincides with an axle distance.

Method for assigning identifiers of wheel electronics of a tire pressure monitoring system of a vehicle to the positions of the wheels on the vehicle

Tire pressure control devices include first sensors to deliver repeatedly a measured value Mfor the rotation speed of the wheel. A measurand, from which the rotation speed of the associated wheel can be derived, is detected in a pointwise manner by means of a second sensor over a predetermined rotation angle &#x3c6; of the wheel as a function of time, is subjected to a low pass filtering in a subsequent first time interval &#x394;tand from the filtered development of the measurand a second measured value Mis determined, which is a measurement for the rotation speed or respectively for the angular speed of the associated wheel. Each tire pressure control device transmits at the end of a second time interval &#x394;tthe second measured value Mtogether with an identification of the tire pressure control device to a central unit. Comparing Mand Mdetermines wheel position.

Method of associating tire pressure control apparatuses to wheel positions

Method for allocating identification codes which are contained in signals transmitted by components of a tire pressure monitoring system, said components being attached to wheels of the vehicle, to the wheel positions. A plurality of sensors to the tire pressure, to the rolling direction of the wheel, to the shocks, as well as a memory for the identification code, and a transmitter which supplies signals with the identification code, the rolling direction and the occurrence of a shock on a wheel to a receiver which, based on the supplied rolling direction information, distinguishes identification codes pertaining to wheels on the left-hand or right-hand side of the vehicle from shocks which occur on the left-hand or right-hand side of the vehicle, measures the time interval elapsing between shock signals on one side of the vehicle, multiplies this time interval by the velocity of the vehicle measured within the same time interval.

Method for allocating idenification codes of wheel electronic devices of a tire pressure monitoring system of a vehicle to the positions of the wheels on the vehicle

Growing community of inventors

Rheinstetten, Germany

Markus Alexander