METHOD OF POSITIONING SENSORS FOR TWINNED WHEELS OF A VEHICLE

• US 20100134262A1
• Filed: 05/09/2008
• Published: 06/03/2010
• Est. Priority Date: 05/09/2007
• Status: Active Grant

• Current Assignee: LDL Technology SAS
• Original Assignee: LDL Technology SAS
• Inventors: Lefaure, Philippe
• Granted Patent: US 8,258,931 B2
• Time in Patent Office: Days
• US Class Current: 340/425.500
• CPC Class Codes: B60C 23/007 having multiple wheels arranged side by side
• CPC Class Codes: B60C 23/008 having wheels on more than two axles
• CPC Class Codes: B60C 23/0416 allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right

Abstract

The invention relates to a method of positioning sensors on wheels (200 and 300) installed coaxial to the same end of one and the same axle of a vehicle (C) comprising a receiving module (100) associated with the body of the vehicle, noteworthy in that it consists in positioning the sensors (210 and 310) at an angular interval greater than or equal to ninety (90) degrees of a wheel (200) relative to the other (300) so that, when operating in displacement mode, the distance between the receiving module and the sensor varies according to the wheel rotation, and in using a link of low frequency (LF) type so that the creation of a distance between the points of emission makes it possible to vary the power of the signals received, thus rendering them distinct. The invention also relates to a device making it possible to implement the method described hereinabove. Applications: measurement and transmission of data associated with the wheels of a vehicle.

Claims

1. Method for positioning sensors on wheels installed coaxial to the same end of the same axle of a vehicle comprising a receiving module associated to the chassis of the vehicle, characterized in that it comprises positioning the sensors according to an angular interval greater than or equal to ninety (90) degrees of one wheel in relation to the other in such a way that during the operation during displacement, the distance between the receiving module and the sensor varies according to the wheel revolution and using a link of the low frequency type in such a way that the creation of a distance between the emission points makes it possible to vary the power level of the signals received, and as such making them distinct.

2. Method according to claim 1, characterized by the face that it comprises positioning the sensors according to an angular interval substantially equal to one hundred and eighty degrees.

3. Method according to claim 1, characterized in that it comprises carrying out an outside visual reference mark on the rim of the outside twinned wheel on the chosen position of the sensor.

4. Method according to claim 1 of the type of that wherein the sensors are not associated to the valve of the wheel in the tire wherein they are installed, characterized in that it comprises positioning the sensors on valves of the wheels and positioning the wheels in such a way that their respective valve and therefore their associated sensor are positioned according to the angular interval desired.

5. Method according to claim 1 of the type of that wherein the sensors are associated to the valve of the wheel in the tire wherein they are installed, characterized in that it comprises positioning the wheels in such a way that their respective valve and therefore their associated sensor are positioned according to the angular interval desired.

6. Device making it possible to implement the method according to claim 1, characterized by the face that it comprises a receiving module associated to the chassis of the vehicle receiving the data coming from the receiving antennas associated to said chassis for each pair of twinned wheels.