US 2026/0295449 A1 · CONTROL DEVICE AND CONTROL METHOD

Abstract

A control device and control method control a motor so that, when an angle instruction signal instructs maintaining a constant rotation angle of an output shaft, the motor resists a load without degrading responsiveness. A driving controller performs a first determination process, based on the angle instruction signal, to determine whether maintaining the constant rotation angle is instructed, and a second determination process, based on load correlation information, to determine whether a load is applied. When maintaining is instructed and a load is detected, the motor is controlled to a lock state; when maintaining is instructed and no load is detected, the motor is controlled to a free state. The load correlation information may be an angle detection signal from an angle detection part that detects the output-shaft rotation angle. In an H-bridge driving circuit, the lock state may be implemented by setting one switch pair to a conductive state.

Claims7

Dependent claims

A control device that controls a motor, comprising:

a driving controller configured to perform a first determination process that determines, based on an angle instruction signal that is a signal instructing a rotation angle of an output shaft of the motor, whether or not it is instructed to maintain a constant rotation angle by the angle instruction signal, and a second determination process that determines, based on load correlation information that is information correlated with a load applied to the motor, whether or not the load is applied to the motor,
wherein when it is determined by the first determination process that it is instructed to maintain a constant rotation angle by the angle instruction signal and it is determined by the second determination process that the load is applied to the motor, the motor is controlled to a lock state, and
when it is determined by the first determination process that it is instructed to maintain a constant rotation angle by the angle instruction signal and it is determined by the second determination process that no load is applied to the motor, the motor is controlled to a free state.

Dependencies are inferred from the claim text.

Control device and control method

Life of this patent

Control device and control method

Life of this patent

Abstract

Claims7