Patent ID: 8853981

Claim:
A driving apparatus for a multiplex-winding motor, the driving apparatus driving the multiplex-winding motor having a plurality of winding groups each including windings corresponding to a plurality of phases, the driving apparatus comprising: a current detection apparatus having sensor sections for detecting motor currents flowing in the windings for the phases of the plurality of winding groups; a control apparatus for calculating voltage instructions with respect to each winding group, based on the motor current detected by each sensor section of the current detection apparatus; a voltage application apparatus for applying voltage to each winding group, based on the voltage instructions; and a failure detection apparatus individually detecting whether or not each sensor section of the current detection apparatus has failed, wherein the control apparatus, when the failure detection apparatus has detected failure of some of the sensor sections, in accordance with the detection, calculates a voltage instruction with respect to the winding group corresponding to the failure of the sensor section, based on motor current with respect to another winding group detected by the sensor section that can normally detect current.