A drive controller according to an aspect controls drive of a three-phase motor, and includes an electric value calculation unit that calculates an electric value in each of coordinate axes of rotating coordinates of the three-phase motor based on an electric value that is at least one of a current value and a voltage value generated in the three-phase motor, and a fault determination unit that determines a fault phase having a fault in phases of the three-phase motor by combining positive-negative information on at least one of a difference between a calculation electric value calculated by the electric value calculation unit and a target electric value indicating a control target of an electric value in each of the coordinate axes, and a variation of the difference, with each of the coordinate axes.
DRIVE CONTROLLER, DRIVE UNIT, AND POWER STEERING
23.09.2021
Patent
Elektronische Ressource
Englisch
Drive unit and electric power steering device including drive unit
Europäisches Patentamt | 2016
|Drive unit and electric power steering device including drive unit
Europäisches Patentamt | 2016
|DRIVE UNIT AND ELECTRIC POWER STEERING INCLUDING THE DRIVE UNIT
Europäisches Patentamt | 2016
|