CONTROLLER AND CONTROL METHOD FOR MOTOR

摘要

To provide a controller and a control method for a motor equipped with a plurality of energization systems each including a coil set of coils corresponding to a plurality of phases and an inverter for outputting a current to each of the phases in the coil set. The controller stops the inverter of a first energization system if the total phase current in the first energization system is an outlier. During a predetermined period after stopping the inverter of the first energization system, even if the total phase current in any other energization system is an outlier, the controller continues to operate the inverter of the other energization system. This makes it possible to continue to operate the inverter of a normal energization system as required as possible while stopping the inverter of an energization system having an abnormality such as a short-circuit or short-to-ground.

主权项

1. A controller for a motor equipped with a plurality of energization systems each including a coil set of coils corresponding to a plurality of phases and an inverter for outputting a current to each of the phases in the coil set, the controller comprising:
a first control unit that detects an abnormality in each of the energization systems and stops the inverter of the energization system having an abnormality detected; and a second control unit that determines whether a predetermined period has elapsed after the first control unit stops the inverter of one of the energization systems, and continues to operate the inverter of the other energization system having an abnormality detected within the predetermined period.