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Application US20200086698
Published 2020-03-19
Method For Pairing A Measurement Module Mounted In A Motor Vehicle Wheel (as Amended)
A method for pairing a measurement module with a wheel of a motor vehicle. The method is implemented by a computer and includes, for each received measured signal, determining the power of the measured signal, determining the angular orientation of each wheel and identifying, in a plurality of tables, a row and column pair including the determined power and the angular orientation of each wheel. The pairing being performed when, for a number of determined columns of each table higher than a first minimum threshold, the number of row and column pairs identified in one table is lower than a predetermined maximum threshold and the number of row and column pairs identified in the other tables is higher than a second minimum threshold.
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- 1. A method for pairing a measurement module with a wheel of a motor vehicle comprising a plurality of wheels, said method being implemented by an on-board computer in said vehicle, said measurement module being installed in one of the wheels of the vehicle and being able to emit, to the computer, at least one measured signal taking the form of at least one pulse received by the computer in the form of a frame of varying power, over at least one interval of a power range divided into K consecutive intervals of the same width, as a function of the position of the measurement module with respect to the computer, the vehicle comprising a plurality of wheel anti-lock modules, each wheel anti-lock module, installed facing a wheel, being able to deliver, to the computer, an orientation signal representative of an angular orientation of said wheel, varying over the angular orientation range divided into M consecutive intervals of the same width, said pairing method comprising:
for each frame of a measured signal received by the computer:
determining at least one value of the power of said received measured signal,
determining, at the time of reception of the measured signal, the angular orientation of each wheel on the basis of the orientation signal received from each wheel anti-lock module,
for each determined power value, identifying, in a plurality of predetermined tables, each divided into K rows and M columns respectively associating the power of the measured signal with the angular orientation of each of the wheels, at least one row and column pair per table, each row and column pair respectively comprising said determined power value and the value of the angular orientation determined for each of the wheels,
a final step of pairing the measurement module with one of the wheels of the vehicle when, after the number of columns determined for each table has reached a first minimum threshold, the number of row and column pairs identified in one of the tables for one of the wheels is lower than a maximum threshold and the number of row and column pairs identified in each of the other tables for the other wheels is higher than a second minimum threshold.
- 9. A computer for a motor vehicle, said vehicle comprising a plurality of wheels, each wheel comprising a measurement module, each measurement module being able to emit, to said computer, at least one measured signal taking the form of at least one pulse received by the computer in the form of a frame of varying power, over at least one interval of a power range divided into K consecutive intervals of the same width, as a function of the position of the measurement module with respect to the computer, the vehicle comprising a plurality of wheel anti-lock modules, each wheel anti-lock module, installed facing a wheel, being able to deliver, to the computer, an orientation signal representative of the angular orientation of said wheel, varying over an angular orientation range divided into M consecutive intervals of the same width, said computer being configured, for each measurement module, so as to:
for each frame of a received measured signal:
determine at least one value of the power of said received measured signal,
determine, at the time of reception of the measured signal, the angular orientation of each wheel on the basis of the orientation signal received from each wheel anti-lock module,
for each determined power value, identify, in a plurality of predetermined tables, each divided into K rows and M columns respectively associating the power of the measured signal as a function of the angular orientation of each of the wheels, one row and column pair per table, each row and column pair respectively comprising said determined power value and the value of the angular orientation determined for each of the wheels,
detect that the number of columns determined for each table has reached a first minimum threshold, detect that the number of row and column pairs identified in one of the tables is lower than a maximum threshold and that the number of row and column pairs identified in the other tables is higher than a second minimum threshold, pair the measurement module with one of the wheels when, after the number of columns determined for each table has reached the first minimum threshold, the number of row and column pairs identified in one of the tables for one of the wheels is lower than the maximum threshold and the number of row and column pairs identified in each of the other tables for the other wheels is higher than the second minimum threshold.
