Motor controlling apparatus

摘要

A motor controlling apparatus includes: a controller configured to (i) compute a target duty cycle value which is a target value for a duty cycle used for a pulse width modulation control for controlling a motor, and (ii) specify 100% as a duty cycle specified value when the target duty cycle value is greater than an upper limit value which is below 100%, or specify 0% as the duty cycle specified value when the target duty cycle value is less than a lower limit value which exceeds 0%; and a control signal generator that generates a control signal for controlling the motor at the duty cycle specified value specified by the controller.

主权项

1. A motor controlling apparatus comprising:
a controller configured to (i) compute a target duty cycle value which is a target value for a duty cycle used for a pulse width modulation control for controlling a motor, (ii) when the target duty cycle value is below 100% and above an upper limit value which is below 100%, specify 100% as a duty cycle specified value for some of a plurality of consecutive pulse width modulation cycles and specify a value less than 100% as the duty cycle specified value for a remainder of the plurality of consecutive pulse width modulation cycles so that an average value of the duty cycles of the plurality of consecutive pulse width modulation cycles is equal to the target duty cycle value, and (iii) when the target duty cycle value is above 0% and less than a lower limit value which exceeds 0%, specify 0% as the duty cycle specified value for some of the plurality of consecutive pulse width modulation cycles and specify a value greater than 0% as the duty cycle specified value for the remainder of the plurality of consecutive pulse width modulation cycles so that the average value of the duty cycles of the plurality of consecutive pulse width modulation cycles is equal to the target duty cycle value; and a control signal generator that generates a control signal for controlling the motor at the duty cycle specified value specified by the controller.