Patent ID: 9294027
Filing Date: 2016-03-22
CPC Classification: H02P

Claim Text:
1. A rotating electric machine for vehicles comprising: a rotor; a stator disposed facing to the rotor, the stator having stator windings; an electric power converter that: (i) converts an alternating current voltage induced by the stator windings into a direct current voltage, or (ii) converts the direct current voltage applied from an outside into the alternating current voltage, and applies the converted alternating current voltage to the stator windings; a rotation angle sensor that detects a rotation angle of the rotor; and a rotation angle sensor abnormality determining section that determines: (i) whether abnormalities of the rotation angle sensor exist based on a phase voltage induced by the stator windings during power generation, and (ii) that the rotation angle sensor has abnormalities when a first rotational speed detected based on the phase voltage induced by the stator windings and a second rotational speed detected based on an output of the rotation angle sensor do not match.