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US 12,589,618 B2Granted
Method and system for monitoring tire inflation pressure
AssigneeThe Goodyear Tire & Rubber Company
InventorRainer Kremer
Life of this patent
Estimating the term…
Abstract
The invention provides a tire inflation pressure method and system. A tire inflation pressure adjustment signal is generated in order to maintain the centerline length of the tire's footprint within a range that allows the good performance of the tire. In embodiments of the invention, a linear relationship between tire inflation pressure, footprint centerline length and vehicle load are exploited to allow for an efficient implementation.
Claims18
A computer implemented method for monitoring an inflation pressure of a tire supporting a vehicle, comprising:
- providing data in a memory element, wherein the data associates at least one centerline length of a footprint of a tire with a corresponding predetermined tire inflation pressure;
- obtaining a centerline length signal that is indicative of a centerline length of the footprint of the tire;
- and
- generating a tire inflation pressure adjustment signal indicating a required adjustment of the tire inflation pressure, based on the centerline length signal and on said data, wherein generating the tire inflation pressure adjustment signal includes generating a difference between the centerline length indicated by the centerline length signal and a target centerline length stored in said data, and providing the tire inflation pressure adjustment signal if the difference exceeds a predetermined threshold value.
1 more element
A tire inflation pressure monitoring system comprising:
- a vehicle;
- a tire supporting the vehicle;
- a first sensor unit being mounted on the tire, the first sensor unit including a footprint centerline length measurement sensor to measure a centerline length of a footprint of the tire;
- a memory element for storing data that associates at least one centerline length of the footprint of the tire with a corresponding predetermined tire inflation pressure;
- and
- a processor in electronic communication with the first sensor unit and with the memory element, the processor being configured to:
- obtain a centerline length signal from the sensor unit, the signal being indicative of a centerline length of the footprint of the tire;
- and
- generate a tire inflation pressure adjustment signal indicating a required adjustment of the tire inflation pressure, based on the centerline length signal and on said data, wherein generating the tire inflation pressure adjustment signal comprises generating a difference between the centerline length indicated by the centerline length signal and a target centerline length stored in said data, and wherein the processor is further configured to provide the tire inflation pressure adjustment signal if the difference exceeds a predetermined threshold value.
6 more elements
Dependencies are inferred from the claim text.