The present invention relates to a steering control apparatus for
maintaining operating characteristics which do not change from when
conditions are normal and when an impairment occurs. The apparatus
includes a plurality of motors for driving a steered wheel and a
plurality of ECUs, each associated with one of the motors. When the
steering control apparatus is operating normally, a torque command
representing torque required to turn the steered wheel is generated. The
torque command is divided in accordance with the number of motors. Each
of the ECUs control the associated motors in accordance with a
corresponding one of the distributed torques.