Method for processing pressure and temperature measurements in a tire monitoring system
First Claim
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1. Process for monitoring a plurality of rolling tires mounted on a vehicle, each tire containing a gaseous fluid which has a mass, said plurality of tires supporting the vehicle on a surface, the process comprising:
- providing for each of said plurality of tires measurement means to measure the temperature for said tires;
providing an estimator of said mass of gaseous fluid contained in said tire;
providing a series of temperatures by recording at repetitive recording times the temperatures provided by said measurement means for each of the plurality of tires;
identifying in said series of temperatures a minimum recorded temperature and a maximum recorded temperature;
calculating the difference between said minimum recorded temperature and said maximum recorded temperature;
if said difference is lower than a predetermined threshold, calculating said estimator and determining if said estimator of said mass of air of each tire is less than a minimum acceptable estimator value; and
providing an indication in response to a determination that an estimator of the mass of air of a tire is less than a minimum acceptable estimator value.
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Abstract
Under-inflation of a tire caused by natural deflation is subject to speci monitoring when all of the tires are in an established temperature range.
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Citations
8 Claims
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1. Process for monitoring a plurality of rolling tires mounted on a vehicle, each tire containing a gaseous fluid which has a mass, said plurality of tires supporting the vehicle on a surface, the process comprising:
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providing for each of said plurality of tires measurement means to measure the temperature for said tires; providing an estimator of said mass of gaseous fluid contained in said tire; providing a series of temperatures by recording at repetitive recording times the temperatures provided by said measurement means for each of the plurality of tires; identifying in said series of temperatures a minimum recorded temperature and a maximum recorded temperature; calculating the difference between said minimum recorded temperature and said maximum recorded temperature; if said difference is lower than a predetermined threshold, calculating said estimator and determining if said estimator of said mass of air of each tire is less than a minimum acceptable estimator value; and providing an indication in response to a determination that an estimator of the mass of air of a tire is less than a minimum acceptable estimator value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification