Tire instrumentation method for measuring the internal temperature during rolling
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsMichel Blondelet, Nicolas Besnard, Sylvie Richez
Life of this patent
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Abstract
A method of instrumentation for a construction plant tire (20) for measures the temperature inside a rubber compound of the tire. The method comprises a step of identifying areas for installing sensors (10) each having a microprocessor, radio transmission means, a temperature measuring probe, and power supply means. The sensors (10) are then inserted in cavities (205, 206, 207) in the rubber compounds, and the sensors are held in a fixed position while the tire (20) is running to communicate the measurement results to a remote receiver located in a vehicle.
Claims12
An instrumentation method for a construction plant tire for measuring a temperature inside a rubber compound of the tire, comprising the following steps:
- (a) identifying, on an outer surface of the tire, at least one area on a basis of predefined selection criteria, a temperature measuring sensor being intended for insertion into the at least one area;
- (b) drilling a cavity in the at least one area identified in the preceding step, with a depth Hc in a drilling direction that is defined by a straight line making an angle Alpha with a radial direction of the tire at a drilling point;
- (c) activating the temperature measuring sensor, which is equipped with a microprocessor, radio transmission means, a temperature measuring probe, and power supply means;
- (d) inserting the temperature measuring sensor in the cavity drilled in the tire by interacting with a device for evacuating air that is present in the cavity;
- (e) fixing the temperature measuring sensor to a bottom and/or on walls of the cavity;
- and
- (f) hermetically closing the cavity.
A method for recovering a sensor after running of a tire, comprising the following steps:
- (i) identifying a sensor insertion cavity on an outer surface of the tire;
- (ii) withdrawing filling means;
- (iii) eliminating a fixation of the sensor to a bottom and/or walls of the cavity;
- (iv) withdrawing the sensor using a compressed-air injection device;
- and
- (v) filling the cavity.
Dependencies are inferred from the claim text.