| 摘要 |
<p>This method determines an angular position (?) of a rotary element (8) rotating with respect to a stationary element (6) in a system where a magnetic ring (4) fast in rotation with the rotary element is arranged with respect to several sensors (CA1 -CA3, CB1 -CB3) each suitable for issuing a unitary electric signal (SA1 -SA3, SB1-SB3) representative of a magnetic field generated by the magnetic ring. The sensors are arranged in at least two groups (A, B), each group of sensors being adapted to generate, on the basis of the unitary signals of its sensors, at least on e combined electric signal (SA, SB) representative of the angular position of the magnetic ring. This method comprises at least the following steps consisting in: a) verifying, for each group of sensors (A, B), the consistency of its combined electric signal with at least one given rule; b) assessing whether or not each group of sensors (A, B) is correctly working on the basis of the verification of step a); and c) if, in step b), a first group of sensors (A) is considered not to be correctly working (FA=O), disregarding its combined electric signal (SA) and relying on the combined electric signal (SB) of at least a second group of sensors (B) for determining an angular position value (?c) for the rotary element.</p> |
