Continental Teves, Ag and Company Ohg

Joachim Kohn

Andreas Köbe

Frank Edling

Vladimir Koukes

Holger Behrends

Marc Nettelmann

Lennert Gootjes

Ines Runge

Maik Hofmann

Martin Grieβer

Alfred Duchow

Jörg Cunz

Stefan Kluge

Constantin Backe

Disclosed is a method of indirect tire pressure monitoring. The method includes: learning test variables (DIAG, SIDE, AXLE), which describe the rotational movements of the wheels; determining rolling circumference differences (&#x394;DIAG, &#x394;SIDE, &#x394;AXLE) from actually determined test variables and the learnt test variables; learning at least one torsion natural frequency ffor at least one tire from the oscillation behavior of the individual tires; determining at least one shift of the torsion natural frequency &#x394;ffrom at least one actually determined torsion natural frequency and from the at least one learnt torsion natural frequency; and combining the rolling circumference differences (&#x394;DIAG, &#x394;SIDE, &#x394;AXLE) with the at least one shift of the torsion natural frequency fin a joint warning strategy for detecting and warning of tire inflation pressure loss.

Method for indirect tire pressure monitoring

Disclosed are different processes for the determination of the internal pressure, particularly of the minimum pressure of the tire of a motor vehicle during driving operation, through an analysis of the characteristic vibration behavior of the wheel, whereby the standardized amplitude is determined from the vibration spectrum determined and the resonance frequency is observed.

Method for determining internal pressure of a vehicle tire

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Hannover, Germany

Joachim Kohn