| 20100235054 | STEERING ANGLE SENSOR - A steering angle sensor for determining absolute angular position of a steering wheel of a motor vehicle is disclosed. The steering angle sensor includes a steering angle sensor for determining absolute angular position of a steering wheel shaft of a motor vehicle, the steering angle sensor comprising a first rotational member coupled to the steering wheel shaft; the steering wheel shaft and the first rotational member being rotatable about a first rotational axis through a rotational range including a plurality of revolutions of the steering wheel shaft; a second rotational member rotatable about a second rotational axis, the second rotational member is operably coupled to the first rotational member; a first sensing device including a first sensing element, the first sensing device positioned adjacent to the second rotational member to generate a first signal used to determine rotational position of the second rotational member over a single turn of the second rotational member; a third rotational member rotatable about a third rotational axis, a reduction gear operably couples the second and third rotational members; at least four second sensors positions adjacent to the third rotational member; and the third rotational member includes a plurality of indexing elements disposed on the third rotational member and at least partially circumscribing the third rotational axis, the indexing members and the second sensors cooperatively positioned to generate a second signal used to determine the number of rotations of the steering wheel shaft. | 09-16-2010 |
