Patent attributes
The invention relates to a method for identifying a fault (96) in an angle sensor (24) which is designed to determine the angular position (18) of a shaft (14) based on an angular position difference (56) between a first output gear (32), which is driven by the shaft (14), and a second output gear (34), which is driven by the shaft (14), the output gears differing in respect of their diameter (34, 36), said method comprising:determining a reference value (18, 52) for the angular position (18) of the shaft (14) based on the angular position (42) of the first output gear (32),determining a comparison value (18′, 52′) for the angular position (18) of the shaft (14) based on the angular position (46) of the second output gear (34) and a transmission ratio (90) between the first output gear (32) and the second output gear (34), andidentifying the fault (96) when a comparison (93, 94) of the reference value (18, 52) and the comparison value (18′, 52′) satisfies a predetermined condition (95).
