Journal of Shanghai Jiaotong University››2016,Vol. 50››Issue (05): 696-701.

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Unidirectional Proportional PumpControlled Asymmetric Cylinder Control Method Based on Predictive Control

WANG Xuan,TAO Jianfeng,ZHANG Fengrong,WU Yajin,LIU Chengliang

  1. (School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2015-06-29Online:2016-05-28Published:2016-05-28

Abstract:Abstract: To resolve the problem of nonovershooting position control of the unidirectional proportional pumpcontrolled asymmetric cylinder system, this paper proposed a threeorder state space model with constraints to describe the system of unidirectional proportional pumpcontrolled asymmetric cylinder. It also proposed a design of model predictive controller applicable to this model to guarantee its nonovershooting output. The simulation results indicate that the proposed method has successfully resolved the overshooting problem without introducing nonlinear characteristics, thus realizing the aim of highprecision position control under multiple constraints.

Key words:Key words: pumpcontrolled asymmetric hydraulic cylinder,nonovershooting,model predictive control,precision position control,multiple constraints

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