Patent ID: 7966108

Claim:
A method of checking the operating characteristics of an electronic unit ( 1 ) designed for a wheel ( 2 ) of a vehicle ( 3 ) and adapted to transmit, to a central processing unit ( 7 ) fitted on said vehicle, data frames (a) representative of operating parameters of said wheel according to a procedure for transmitting streams (A) of frames (a), consisting in ordering n successive transmissions of each data frame (a), said checking method comprising: analyzing, on the transmission of each stream (A) of frames, the number m of data frames (a) actually acquired by the central processing unit ( 7 ) so as to deduce from the successive analyses a reception ratio Tr representative of the ratio Σm/Σn:sum of frames acquired/sum of frames for which transmission has been ordered; and ordering the transmission, by the central processing unit ( 7 ), of a preventive indication when the reception ratio Tr becomes less than a predetermined reception threshold, said unit incorporating at least one measurement sensor, and being adapted to detect any physical faults on each measurement sensor and to transmit data frames (a) comprising, for each sensor, a data item representative of the physical state of said sensor, said checking method further comprising, for each measurement sensor: for each data frame (a) transmitted, in analyzing the data item representative of the physical state of said measurement sensor, so as to deduce from the successive analyses an error ratio Te representative of the percentage of data frames (a) incorporating a physical state data item representative of a physical fault, and in ordering the transmission, by the central processing unit ( 7 ), of a preventive indication when the error ratio (Te) becomes greater than a predetermined error threshold.