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STEERING WHEEL ANGLE SENSOR AND METHOD FOR FAULT DETECTING OF A STEERING WHEEL ANGLE SENSOR
STEERING WHEEL ANGLE SENSOR AND METHOD FOR FAULT DETECTING OF A STEERING WHEEL ANGLE SENSOR
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机译:转向轮角度传感器及转向轮角度传感器的故障检测方法
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摘要
A steering wheel angle sensor is described comprising a first part and a second part, wherein the first part and the second part are moveable relative to each other in rotational direction and the first part comprises at least one first signal generating means (1, 2) generating a sine signal (x2, x5) in response to an angular position of the second part and at least one second signal generating means (3, 4) generating a cosine signal (y2, y5) in response to the angular position of the second part. Such a steering wheel angle sensor should allow a simple fault detection. To this end fault detecting means (9) are provided, wherein the fault detecting means (9) form a sum of the square of the sine signal (x2, x5) and the square of the cosine signal (y2, y5) and generates a fault signal, if the sum is not within a predetermined range.
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