A steering-shaft-rotation-angle detection device that detects a rotation angle of a steering shaft that is rotated by operation of a steering wheel, includes an electric motor that assists steering of the steering wheel by a driver, a speed reduction mechanism that reduces speed of rotation of the electric motor and transmits the rotation to the steering shaft, a rotating body that is attached to a rotation shaft of the electric motor, a signal output unit that outputs a signal in accordance with rotation of the rotating body, and a controller that calculates a rotation angle of the rotating body on the basis of the output signal from the signal output unit and calculates, on the basis of this rotation angle and a speed reduction ratio of the speed reduction mechanism, a rotation angle of the steering shaft.
DEVICE FOR DETECTING STEERING SHAFT ROTATION ANGLE
VORRICHTUNG ZUR ERKENNUNG DES DREHWINKELS EINER LENKWELLE
DISPOSITIF DE DÉTECTION DE L'ANGLE DE ROTATION D'UN ARBRE DE DIRECTION
2016-08-10
Patent
Electronic Resource
English
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