Title :
Control of resistance spot welding
Author :
Shriver, Justin ; Peng, Huei ; Hu, S. Jack
Author_Institution :
Michigan Univ., IL, USA
Abstract :
This paper discusses recent progress in the development of a feedback controller for the resistance spot welding process. Two key elements of our control architecture are: operating condition detection and nugget growth estimation. In this paper the operating condition problem is addressed with respect to three well-defined operating conditions. We employ a principal component-based design for the operating condition detector. The nugget growth estimation problem is addressed by employing an affine input-output model and neural networks for local feedback
Keywords :
control system synthesis; feedback; neurocontrollers; principal component analysis; process control; resistance welding; control architecture; feedback; input-output model; neural networks; nugget growth estimation; operating condition detection; principal component analysis; resistance spot welding; Adaptive control; Detectors; Equations; Instruments; Spot welding; Temperature; Testing; Thermal conductivity; Thermal resistance; Voltage;
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4990-3
DOI :
10.1109/ACC.1999.782766