Tire lift-off propensity predictive system and method
First Claim
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1. A lift-off propensity predictive system comprising:
- a vehicle supported by at least one vehicle tire mounted to a hub, the vehicle tire including a tire cavity and a ground-engaging tread, and the tire including a plurality of tire-specific measureable parameters;
a plurality of tire-affixed sensors mounted to the tire operably measuring the tire-specific parameters and generating tire-specific parameter information;
a tire-affixed tire-identification device for providing a tire-specific identification;
at least one vehicle-affixed sensor mounted to the vehicle operably measuring vehicle speed;
a lift-off propensity estimator operable to generate a lift-off propensity for the one vehicle tire, the lift-off propensity being correlated to a predicted tire contact patch area, wherein the predicted tire contact patch area is calculated from the tire-specific parameter information, the tire-specific identification and the vehicle speed; and
means to generate a lift off propensity warning for the vehicle.
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Abstract
A system for predicting tire lift-off propensity of a vehicle tire includes a vehicle tire-affixed tire-identification device for providing a tire-specific identification, multiple tire-affixed sensors mounted to the tire measuring tire-specific parameters and generating tire-specific parameter information, one or more vehicle-affixed sensor(s) mounted to the vehicle to measure vehicle speed and a lift-off propensity estimator generating a lift-off propensity for the vehicle tire from a database containing experimentally-derived, tire-ID specific, lift-off propensities correlated with measured tire-specific parameter information and vehicle speeds.
34 Citations
18 Claims
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1. A lift-off propensity predictive system comprising:
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a vehicle supported by at least one vehicle tire mounted to a hub, the vehicle tire including a tire cavity and a ground-engaging tread, and the tire including a plurality of tire-specific measureable parameters; a plurality of tire-affixed sensors mounted to the tire operably measuring the tire-specific parameters and generating tire-specific parameter information; a tire-affixed tire-identification device for providing a tire-specific identification; at least one vehicle-affixed sensor mounted to the vehicle operably measuring vehicle speed; a lift-off propensity estimator operable to generate a lift-off propensity for the one vehicle tire, the lift-off propensity being correlated to a predicted tire contact patch area, wherein the predicted tire contact patch area is calculated from the tire-specific parameter information, the tire-specific identification and the vehicle speed; and means to generate a lift off propensity warning for the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A lift-off propensity predictive system comprising:
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a vehicle supported by at least one vehicle tire mounted to a hub, the vehicle tire including a tire cavity and a ground-engaging tread, and the tire including a plurality of tire-specific measureable parameters; a plurality of tire-affixed sensors mounted to the tire operably measuring the tire-specific parameters and generating tire-specific parameter information; a tire-affixed tire-identification device for providing a tire-specific identification; at least one vehicle-affixed sensor mounted to the vehicle operably measuring vehicle speed; a lift-off propensity estimator operable to generate a lift-off propensity for the one vehicle tire, the lift-off propensity being correlated to a predicted tire contact patch area, wherein the predicted tire contact patch area is calculated from the tire-specific parameter information, the tire-specific identification and the vehicle speed; and means to generate a lift off propensity warning to multiple vehicles.
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12. A method of making a lift-off propensity estimation comprising:
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mounting at least one vehicle tire to a vehicle, the vehicle tire having a tire cavity and a ground-engaging tread, and the tire having a plurality of tire-specific measureable parameters; affixing to the one vehicle tire a tire identification device providing a tire-specific identification; affixing at least one vehicle-affixed sensor to the vehicle operably measuring vehicle speed; mounting a plurality of tire-affixed sensors to the tire operably measuring the tire-specific parameters to generate tire-specific parameter information; inputting the tire-specific parameter information and the tire-specific identification and the vehicle speed into a lift-off propensity estimator; calculating a predicted tire contact patch area from the tire-specific parameter information, the tire-specific identification and the vehicle speed with the lift-off propensity estimator; correlating the predicted tire contact patch area to a lift-off propensity for the one vehicle tire; and generating a lift off propensity warning for the vehicle. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification