Abstract
In view of the high energy consumption and low response speed of the traditional hydraulic system for an injection molding machine, a servo motor driven constant pump hydraulic system is designed for a precision injection molding process, which uses a servo motor, a constant pump, and a pressure sensor, instead of a common motor, a constant pump, a pressure proportion valve, and a flow proportion valve. A model predictive control strategy based on neurodynamic optimization is proposed to control this new hydraulic system in the injection molding process. Simulation results showed that this control method has good control precision and quick response.
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Project supported by the National Natural Science Foundation of China (No. 61203299), the Fundamental Research Funds for the Central Universities (No. 2013QNA4021), the Natural Science Foundation of Zhejiang Province (Nos. Y1110135 and LY12F03018), and the Qianjiang Talents Program of Zhejiang Province, China (No. 2013R10047)
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Peng, Yg., Wang, J. & Wei, W. Model predictive control of servo motor driven constant pump hydraulic system in injection molding process based on neurodynamic optimization. J. Zhejiang Univ. - Sci. C 15, 139–146 (2014). https://doi.org/10.1631/jzus.C1300182
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DOI: https://doi.org/10.1631/jzus.C1300182