A vehicle steering apparatus with improved safety securely detects whether
or not a backup system is operable and comprises a steering shaft
connected to the steering wheel; a reaction actuator connected to the
steering shaft for adding a reaction force; a rack for steering a steered
wheel; a steering actuator provided on the rack; a backup mechanism for
connecting the steering shaft and the rack via a clutch, a first
detection means or mechanism for detecting the condition of the steering
shaft, a second detection means or mechanism for detecting the condition
of the rack, and a backup operation monitoring means or mechanism for
driving the steering actuator when the power source is energized, the
backup operation monitoring means or mechanism selectively monitoring the
operation of the backup mechanism based on the value detected by the
first detection means or mechanism or the second detection means or
mechanism or both.