Tire pressure loss recognition during trailer operation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Dec 9, 2004
app pub date -
Jul 2, 2004
filing date -
Jun 19, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention describes a method and a device for monitoring an operating state of at least one tire of vehicle as a function of the coupling of a trailer to the vehicle. In this context, the operating state of the tire, i.e. the tire state, is particularly monitored for changes. Operation of the vehicle with a trailer causes the distribution of the axle load between the front and rear axles to change in the towing vehicle. This manifests itself in changed slip conditions for the wheels on both the front axle and the rear axle and results in the wheel speeds in trailer operation differing from those in trailerless operation, when the conditions are otherwise the same. Now, the essence of the present invention is to modify the wheel-speed-based monitoring of the tire state on the basis of detecting that the vehicle is being operated with a trailer. This modification allows, e.g. a loss in pressure of a tire to be determined with a better detection accuracy.
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