Motoranormalitäts-Detektionsgerät und elektrisches Servolenksteuersystem

摘要

A motor abnormality detection apparatus is capable of performing the abnormality detection of a motor ( 5 ) without supplying a special electric current thereto for abnormality detection in an ordinary control state. A motor control device ( 100 ) controls the motor ( 5 ) through vector control which is described by a two-phase rotating magnetic flux coordinate system having the direction of a field current as a d-axis direction and a direction orthogonal to the d-axis direction as a q-axis direction. A motor abnormality detection part ( 100 h) ( 100 h) performs an abnormality determination of the motor based on target impression voltages (Vd*, Vq*) impressed on the motor ( 5 ).