Michelin Recherche Et Technique S.a.

Trw Automotive U.S. LLC

Compagnie Generale Des Etablissements Michelin

Societe Detechnologie Michelin

Philippe Corniot

Franck Liberge

Thierry Penot

Xavier Huchard

A device and a method for aiding inflation for a vehicle involves obtaining access to vehicle tire pressure and temperature data, and utilizing an under-inflation detection module and an inflation condition testing module, thus making it possible to carry out a test for detecting a possible optimal inflation condition if the following criteria are met:&#x2014;there is a non-critical under-inflation state for at least one of the vehicle tires;&#x2014;the tires are not in an overheated state;&#x2014;and the tire state is unchanged by sunlight. When the test module determines the optimal inflation condition, a signal is outputted. Such a method causes tire inflation to be carried out under favorable conditions actually corresponding to the reference value provided by the manufacturers.

Device and method for assisting inflation

A method of identifying a position of a wheel of a vehicle includes: providing, in at least one wheel of the vehicle, a device with at least one magnetic sensor with a maximum sensitivity axis; starting up the vehicle; measuring at terminals of each magnetic sensor a signal representative of magnetic flux time variations during rotation of the wheel; determining a characteristic quantity of the signal; comparing the characteristic quantity to a given threshold; and determining, according to a comparison result, a front or rear location of the wheel.

Method and device for identifying the position of a wheel of a vehicle

Measuring unit with at least a pressure sensor and signal transmission means, intended to be fitted on a tire/wheel assembly, characterized in that it comprises a logic indicator with two states, active and inactive, and in that the logic indicator becomes active each time the pressure measured by the pressure sensor is below a given threshold, close to zero.

Unit for measuring and system for monitoring tire pressure in tires of the extended mobility or other type

The method consists in adjusting the pressure of a tire () according to a corrected set value Pcalculated using formula (I), wherein: Pis a set value recommended by a car manufacturer and a tire producer; Tis the temperature of the tire (), supplied by a temperature sensor installed in the tire, and Tis a variable reference temperature which is selected as being the lowest temperature from the instantaneous ambient temperature measured (at) at the site of the inflating machine () and a calculated mean value for ambient temperature, the pressures Pand Pbeing in absolute value and temperatures Tand Tbeing given in degrees K.

Tire-inflation method, and device and machine for implementing the method

Method for determining the load condition of a vehicle () moving at non-zero speed, the vehicle being equipped with a plurality of tire-wheel assemblies (--) mounted on at least two axles and with devices that enable determination of the vehicle's speed and the rotation frequencies or speeds and actual inflation pressures of at least two tire-wheel assemblies mounted on two different axles of the vehicle, the method comprising the following stages: (A) determination of the inflation pressures and rotation frequencies of two tire-wheel assemblies mounted on two different axles; (B) calculation of the load difference between the two tire-wheel assemblies from the vehicle's speed and the rotation frequencies of the two tire-wheel assemblies, taking into account the actual inflation pressures; (C) determination of the load condition by comparing the calculated load difference with at least one predetermined threshold.

Method for determining the load condition of a vehicle

A method is presented for maintaining a set of at least two components from a group including a wheel rim, a tire and a safety support element, the method including the following steps: providing a set of components, wherein at least one of the components is provided with an information carrier that can be automatically read and is configured to supply at least one data element for use in carrying out the desired maintenance on the set; said set is brought to a maintenance machine that is configured to carry out the desired maintenance on the set under the control of a programmable data management unit; the information carrier of at least one of the components of the set brought to the machine is automatically read and the data is automatically transmitted to the programmable unit; the machine is regulated on the basis of the data transmitted; and the desired maintenance for the set is initiated and carried out by means of the machine.

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Enval, France

Philippe Corniot