Diagnosis system and diagnosis method for opening/closing device
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsKazuumi Kondo, Mitsuaki Hoshi, Fujio Shinoki, Kosaku Murase
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Abstract
A diagnosis system diagnoses the integrity of an opening/closing device capable of opening and closing by driving a motor. A driving current acquisition unit acquires a driving current of the motor. A diagnosis unit defines a current waveform from a temporal change of the driving current acquired by the driving current acquisition unit and diagnoses the integrity of the opening/closing device based on the current waveform.
Claims12
A diagnosis system for an opening/closing device capable of opening and closing by driving a motor, the diagnosis system comprising:
- a driving current acquisition unit configured to acquire a driving current of the motor;
- and
- a diagnosis unit configured to diagnose integrity of the opening/closing device, based on a disturbance in a region next to a peak formed corresponding to an opening/closing control of the opening/closing device in a current waveform defined by a temporal change of the driving current acquired by the driving current acquisition unit during an open control period or a close control period, wherein
- the disturbance is a subpeak which is smaller than the peak.
A diagnosis method for an opening/closing device capable of opening and closing by driving a motor, the diagnosis method comprising:
- a step of acquiring a driving current of the motor;
- and
- a step of diagnosing integrity of the opening/closing device, based on a disturbance in a region next to a peak formed corresponding to an opening/closing control of the opening/closing device in a current waveform defined by a temporal change of the driving current during an open control period or a close control period, wherein
- the disturbance is a subpeak which is smaller than the peak.
Dependencies are inferred from the claim text.