TIRE WEAR STATE ESTIMATION SYSTEM UTILIZING CORNERING STIFFNESS AND METHOD
First Claim
Patent Images
1. A tire wear state estimation system comprising:
- at least one tire supporting a vehicle;
tire pressure measuring means affixed to the one tire for measuring tire inflation pressure;
tire load measuring means for measuring tire load;
tire cornering stiffness measuring means for measuring tire cornering stiffness;
tire identification means for identifying the tire; and
tire wear estimation means for calculating an estimation of a tire wear state based upon inputs comprising the tire inflation pressure, the tire load, the tire cornering stiffness, and the tire identification.
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Abstract
A tire wear state estimation system includes as inputs an axle force estimation, a measured tire inflation pressure; a tire load estimation; a tire cornering stiffness estimation; and a tire identification by which a specific tire-based correlation model correlates tire inflation pressure, the tire load estimation, the tire cornering stiffness estimation, and the vehicle-based sensor axle force estimation.
18 Citations
18 Claims
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1. A tire wear state estimation system comprising:
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at least one tire supporting a vehicle; tire pressure measuring means affixed to the one tire for measuring tire inflation pressure; tire load measuring means for measuring tire load; tire cornering stiffness measuring means for measuring tire cornering stiffness; tire identification means for identifying the tire; and tire wear estimation means for calculating an estimation of a tire wear state based upon inputs comprising the tire inflation pressure, the tire load, the tire cornering stiffness, and the tire identification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A tire wear state estimation system comprising:
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at least one tire for supporting a vehicle; a tire-mounted pressure measuring device affixed to the one tire operative to measure a tire pressure within a tire cavity; a tire identification device mounted to the tire for providing tire-identification data; a tire-mounted sensor-based load measuring estimator for measuring tire load; tire cornering stiffness measuring means for measuring tire cornering stiffness; and tire wear estimation means for calculating an estimation of a tire wear state based upon inputs comprising the tire inflation, the tire load, the tire cornering stiffness, and the tire identification. - View Dependent Claims (13, 14, 15)
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16. A method of tire wear state estimation comprising:
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affixing a tire pressure measuring device to a vehicle-supporting tire, the pressure measuring device having at least one pressure sensor measuring a tire inflation pressure within a tire cavity; measuring tire load; measuring tire cornering stiffness; determining a tire identification; and estimating a tire wear state based upon inputs comprising the tire inflation pressure, the tire load, the tire cornering stiffness, and the tire identification. - View Dependent Claims (17, 18)
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Specification