METHOD AND DEVICE 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 set, or on the rear set, of wheels (2, 3, 5, 6) of a vehicle (1) furnished with an engine (M) for driving a driveshaft (4), said wheels being fitted with an electronic module (8-11) suitable for transmitting, to a central unit (18) mounted on the vehicle (1), signals representative of operating parameters of each wheel (2, 3, 5, 6) also comprising a code for identifying the latter, said location method comprising:
- incorporating, into each electronic module (8-11), a sensor (16), called a tangential measurement sensor, having an axis of maximum tangential sensitivity, suitable for delivering measurement signals comprising a carrier of amplitudes and frequencies that are a function of the vibratory impacts sustained by the tangential measurement sensor (16),measuring the amplitudes of the carrier of the signals delivered by the tangential measurement sensors (16) in a frequency band corresponding to the frequencies of the explosions of the engine (M),comparing said signals so as to identify the signals of which the carriers have, for identical frequencies, maximum amplitudes,and locating the wheels (2, 3), fitted with the tangential measurement sensors (16), that are the source of the signals of which the carriers have maximum amplitudes, as corresponding to the wheels (2, 3) mounted on the driveshaft (4).
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Accused Products
Abstract
A method for locating the longitudinal position of wheels (2, 3, 5, 6) of a vehicle (1) in which each wheel is fitted with a tangential measurement sensor (16) suitable for delivering measurement signals including a carrier of amplitudes and frequencies that are a function of the vibratory impacts sustained by the tangential measurement sensor. According to the invention, also, the amplitudes of the carrier of the signals in a frequency band corresponding to the frequencies of the explosions of the engine (M) are measured, the signals are compared so as to identify the signals of which the carriers have, for identical frequencies, maximum amplitudes, and the wheels (2, 3) that are the source of the signals of which the carriers have maximum amplitudes are located as corresponding to the wheels (2, 3) mounted on the driveshaft (4).
17 Citations
12 Claims
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1. A method for locating the longitudinal position, either on the front set, or on the rear set, of wheels (2, 3, 5, 6) of a vehicle (1) furnished with an engine (M) for driving a driveshaft (4), said wheels being fitted with an electronic module (8-11) suitable for transmitting, to a central unit (18) mounted on the vehicle (1), signals representative of operating parameters of each wheel (2, 3, 5, 6) also comprising a code for identifying the latter, said location method comprising:
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incorporating, into each electronic module (8-11), a sensor (16), called a tangential measurement sensor, having an axis of maximum tangential sensitivity, suitable for delivering measurement signals comprising a carrier of amplitudes and frequencies that are a function of the vibratory impacts sustained by the tangential measurement sensor (16), measuring the amplitudes of the carrier of the signals delivered by the tangential measurement sensors (16) in a frequency band corresponding to the frequencies of the explosions of the engine (M), comparing said signals so as to identify the signals of which the carriers have, for identical frequencies, maximum amplitudes, and locating the wheels (2, 3), fitted with the tangential measurement sensors (16), that are the source of the signals of which the carriers have maximum amplitudes, as corresponding to the wheels (2, 3) mounted on the driveshaft (4). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification