Paper Info
Title
Robust pressure control of electric injection molding machine using automatic parameter switching reaction force observer
Abstract
The force control system of a typical injection molding machine obtains force information from the machine's environment via a force sensor. However, because of Force sensors often have disadvantages such as signal noise, high cost, and a narrow bandwidth, a reaction force observer was developed for electric injection molding machines. This method has a steady-state error owing to the influence of nonlinear friction. We realized sensorless force feedback control based on a friction compensation element, dither signal inserting method, and high order reaction force observer (HORFO). The HORFO does not influence either the inserted dither signal or the nonlinear friction phenomenon. However, as the desired parameters of the HORFO cannot be fixed at each driving point, the sensorless force feedback control method cannot always be used for fine pressure control. To overcome this problem, we propose new sensorless force control system based on HORFO in this paper. Experimental results confirmed the robustness of the proposed sensorless force control system.
Year
DOI
Venue
2013
10.1109/IECON.2013.6700216
Vienna
Keywords
Field
DocType
compensation,feedback,force control,moulding equipment,nonlinear control systems,observers,pressure control,robust control,sensorless machine control,horfo,automatic parameter switching reaction force observer,dither signal inserting method,electric injection molding machine,force control system,force sensor,friction compensation element,high order reaction force observer,nonlinear friction phenomenon,robust pressure control,sensorless force feedback control,steady-state error,motion control,sensorless pressure control
Control theory,Reaction,Injection molding machine,Pressure control,Control engineering,Robustness (computer science),Control system,Dither,Engineering,Observer (quantum physics),Robust control
Conference
ISSN
Citations 
PageRank 
1553-572X
0
0.34
References 
Authors
12
6
Name
Order
Citations
PageRank
kenji iwazaki100.34
Kiyoshi Ohishi241571.48
Yuki Yokokura37518.43
Koichi Kageyama4222.83
masaru takatsu510.76
Shiro Urushihara6132.23