Patent ID: 9379647
Filing Date: 2016-06-28
CPC Classification: H02P

Claim Text:
1. A motor driving control device comprising: a rotation detecting unit configured to detect a rotating state of a motor, the rotating state including current rotation speed of the motor; a drive detecting unit configured to detect a driving state of the motor, the driving state including whether the motor is instructed to stop or to rotate; a command acquiring unit configured to acquire first command information that indicates target rotation speed of the motor; a state determining unit configured to determine whether the motor can perform a slow start operation based on a detection result of the rotation detecting unit and a detection result of the drive detecting unit, when the command acquiring unit acquires the first command information indicating the target rotation speed to start rotation of the motor; a control unit configured to generate second command information corresponding to a speed at which the motor is to be rotated, based on a determination result of the state determining unit and the first command information acquired by the command acquiring unit; and a motor driving unit configured to output a driving signal corresponding to the second command information generated by the control unit to the motor so as to drive the motor, wherein when it is determined that the motor can perform the slow start operation by the state determining unit, the control unit is configured to generate the second command information such that the motor performs the slow start operation, wherein the drive detecting unit is configured to detect whether the motor is instructed to stop based on the second command information generated by the control unit, wherein the rotation detecting unit is configured to detect whether a rotating speed of the motor is smaller than a predetermined value, and wherein in a state where the drive detecting unit detects that the motor is instructed to stop, the state determining unit is configured to determine that the motor can perform the slow start operation when the rotation detecting unit detects that the rotating speed of the motor is smaller than the predetermined value.