SYSTEM AND METHOD FOR MONITORING VEHICLE CONDITIONS AFFECTING TIRES

A system and method for monitoring tread wear, shock absorber performanc e, balance condition of a vehicle tire, and/or rotation speed of a vehicle whee l, use a sensor to provide acceleration signals. To monitor tread wear, acceleration signals from the sensor determine at least one resonance frequ...

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Bibliographische Detailangaben
Hauptverfasser:	DUNBRIDGE, BARRY, MAGIAWALA, KIRAN R, EBERHARD, CAROL A, ZIMMERMAN, THOMAS A, MCIVER, GEORGE W
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CALCULATING COMPUTING COUNTING DEVICES OR ARRANGEMENTS RELATED TO TYRES ELECTRIC DIGITAL DATA PROCESSING INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PERFORMING OPERATIONS PHYSICS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL SIGNALLING TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION VEHICLE SUSPENSION ARRANGEMENTS VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A system and method for monitoring tread wear, shock absorber performanc e, balance condition of a vehicle tire, and/or rotation speed of a vehicle whee l, use a sensor to provide acceleration signals. To monitor tread wear, acceleration signals from the sensor determine at least one resonance frequency of at least one of the radial and lateral acceleration of the tire and compares it to at least one stored resonance frequency To monitor shock absorber performance, the amplitude of the Fourier component o f the radial acceleration is compared to a stored amplitude value. To monitor a balance condition of a vehicle tire, the sensor provides acceleration signals measur ed over a specified time duration to determine an amplitude of the Fourier component o f the radial acceleration that is compared to a stored amplitude specification balance condition of the tire.