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A platform for research: civil engineering, architecture and urbanism
Control method for motor driving shield door and provided with position sensor
The invention provides a control method for a motor driving a shield door and provided with a position sensor. The control method comprises the steps that a, when the motor drives the shield door, a digital signal processor carries out speed closed-loop PID control over the motor; b, if the digital processor can not obtain a position change signal detected by the position sensor, the digital signal processor compares currents of the motor with a preset threshold value, and when the currents are larger than the set threshold value, the motor is controlled to stop rotating or reversely rotate to an initial state; when the currents are not larger than the set threshold value, then whether the digital signal processor has already recorded a time and duty ratio curve of the whole door opening and closing process is judged, if no, the motor is controlled to rotate at a constant speed, and if yes, according to the recorded time and duty ratio curve, the motor is controlled according to a door opening and closing speed curve. According to the control method, when the position sensor in the motor fails, the motor can still be controlled safely to drive the shield door to be opened or closed normally.
Control method for motor driving shield door and provided with position sensor
The invention provides a control method for a motor driving a shield door and provided with a position sensor. The control method comprises the steps that a, when the motor drives the shield door, a digital signal processor carries out speed closed-loop PID control over the motor; b, if the digital processor can not obtain a position change signal detected by the position sensor, the digital signal processor compares currents of the motor with a preset threshold value, and when the currents are larger than the set threshold value, the motor is controlled to stop rotating or reversely rotate to an initial state; when the currents are not larger than the set threshold value, then whether the digital signal processor has already recorded a time and duty ratio curve of the whole door opening and closing process is judged, if no, the motor is controlled to rotate at a constant speed, and if yes, according to the recorded time and duty ratio curve, the motor is controlled according to a door opening and closing speed curve. According to the control method, when the position sensor in the motor fails, the motor can still be controlled safely to drive the shield door to be opened or closed normally.
Control method for motor driving shield door and provided with position sensor
NI DACHENG (author) / WANG FEI (author) / BAO YANSHENG (author) / WANG XIAO (author) / CHEN YU (author) / ZHOU FENG (author) / ZHOU TIANLONG (author) / HUANG PENG (author)
2015-06-17
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
Shield door driving system directly driven by linear motor
| European Patent Office | 2024