A steering apparatus of a vehicle can achieve detection of an absolute angle
of
a steering shaft with a simple structure while preventing an increase in power
consumption. A resolver sensor outputs an output signal corresponding to an angular
position of a steering shaft of the vehicle. A lock mechanism restricts rotation
of the steering shaft at locking positions provided around the steering shaft at
equal intervals. An axial multiplication angle k of the output signal of
the resolver sensor and a number N of the locking positions provided around the
steering shaft satisfy a relationship represented by kN.
