G - Physics – 01 – P
Patent
G - Physics
01
P
G01P 13/04 (2006.01) G01D 5/14 (2006.01) G01D 5/245 (2006.01)
Patent
CA 2287182
The invention relates to a method for detecting the direction of rotation of a wheel (8) by means of Hall probes (14 to 16) arranged in the peripheral direction of the wheel (8). A first, second and third hall probe (14 to 16) are positioned in succession so that the second Hall probe (15) lies between the first and third Hall probes (14, 16). The output signals (51, 52, 53) of the three Hall probes (14 to 16) are used to obtain two evaluation signals. Said evaluation signals are then compared to determine the direction of rotation of the wheel (8). The first evaluation signal is obtained by substracting the third output signal from the first output signal. The second output signal is obtained by adding the first and third output signals and substracting twice the value of the second output signal.
L'invention concerne un procédé pour détecter le sens de rotation d'une roue (8) au moyen de sondes de Hall (14 à 16) qui sont disposées dans le sens circonférentiel de la roue (8). Une première, une deuxième et une troisième sonde de Hall (14 à 16) sont disposées en série, de sorte que la deuxième sonde de Hall (15) se situe entre la première et la troisième sonde de Hall (14, 16). Deux signaux d'évaluation sont extraits des signaux de sortie (51, 52, 53) des trois sondes de Hall (15 à 16), la comparaison de ces signaux d'évaluation permettant de déterminer le sens de rotation de la roue (8).
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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