METHOD FOR LOCATING THE LONGITUDINAL POSITION OF THE WHEELS OF A VEHICLE
First Claim
1. A method for locating the longitudinal position, either on the front chassis or on the rear chassis of a vehicle (1), of wheels (2-5) equipped with an electronic module (6-9) designed to emit, to a central processing unit (10) mounted on the vehicle (1), signals representative of operating parameters of each wheel and which also comprise an identification code for identifying said wheel, said locating method being characterized in that it consists in equipping each wheel (2-5) with a sensor (16) for measuring values representative of the norm of the Earth'"'"'s magnetic field projected into the plane (P3, P5) of said wheel, in comparing series of values measured simultaneously by the various sensors (16), representative of the variations from the norm of the Earth'"'"'s magnetic field measured by each of said sensors, so as to reveal a phase shift between said series, and in locating the guiding wheels (2, 3) as being the wheels equipped with the sensors (16) originating the series of values in phase advance.
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Accused Products
Abstract
A method for locating the longitudinal position, either on the front chassis or on the rear chassis of a vehicle, of wheels (2) equipped with an electronic module (6) (or called wheel unit) designed to emit, to a central processing unit mounted on the vehicle, signals representative of operating parameters of each wheel. Each wheel (2) is equipped with a sensor (16) for measuring values representative of the norm of the Earth'"'"'s magnetic field projected into the plane of the wheel, series of values measured simultaneously by the various sensors (16), representative of the variations of the norm of the Earth'"'"'s magnetic field measured by each of the sensors, are compared so as to reveal a phase shift between the series, and the guiding wheels (2) are identified as being the wheels equipped with the sensors (16) originating the series of values in phase advance.
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Citations
14 Claims
- 1. A method for locating the longitudinal position, either on the front chassis or on the rear chassis of a vehicle (1), of wheels (2-5) equipped with an electronic module (6-9) designed to emit, to a central processing unit (10) mounted on the vehicle (1), signals representative of operating parameters of each wheel and which also comprise an identification code for identifying said wheel, said locating method being characterized in that it consists in equipping each wheel (2-5) with a sensor (16) for measuring values representative of the norm of the Earth'"'"'s magnetic field projected into the plane (P3, P5) of said wheel, in comparing series of values measured simultaneously by the various sensors (16), representative of the variations from the norm of the Earth'"'"'s magnetic field measured by each of said sensors, so as to reveal a phase shift between said series, and in locating the guiding wheels (2, 3) as being the wheels equipped with the sensors (16) originating the series of values in phase advance.
Specification