DEVELOPMENT OF TYRE CHECKING EQUIPMENT
1993
This paper presents methods and technical means to check the tyre pressures and the good condition of tyre structures. These include: (1) Tyre pressures using a stationary equipment located outside the vehicle. This device consists of a propelled mass and a force transducer hitting the tyre tread. Parameters calculated from form and duration of the delivered signal are related to inflation pressure. The next step now consists in implementing the equipment where vehicles are likely to stop for a short period of time (for example toll gates); and (2) the good condition of tyre structures (mainly the internal condition of the casing). A microphone set close to a running tyre on a drum delivers time and frequency signatures based on specific signal processing methods. A statistical analysis is necessary to correlate signature parameters and danger criteria for good and damaged tyres. For the covering abstract of the conference see IRRD 864606.
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