Extraction of the tire characteristics by means of a combination of direct tire pressure monitoring system and the tire resonance analysis

摘要

Embodiments relate to the tire characterization systems and methods for combining of direct tire pressure monitoring systems (tpms) and the tire resonance analysis in indirect tire pressure monitoring systems (tpms) for the extraction of the tire characteristics, in order to characterize further the tire parameters. In embodiments, itpms and method, the of an anti-lock system (abs) sensed signals, which with an electronic control unit (ecu), which is a circuit and / or control units, are coupled, used in order, the sensed signals using a resonance frequency analysis - (xrfa) method to process, with direct tire pressure sensor measurements of direct tpms - systems are combined. Since direct tpms - systems a precise value of a mature charakteristikums (for example, the tire pressure), one of the unknown parameters, which influences the resonance effects, are removed. For this reason, the detected resonance be used for this purpose, in order to characterize a further the tire parameters, the without knowledge of the precise value of the mature charakteristikums, of the of the direct tpms - system is supplied, would not accessible.