Gray box modeling of an excavator's variable displacement hydraulic pump for fast simulation of excavation cycles

被引：43

作者：

Casoli, Paolo ^{[1
]}

Anthony, Alvin ^{[1
]}

机构：

[1] Univ Parma Italy, Dept Ind Engn, I-43124 Parma, PR, Italy

来源：

CONTROL ENGINEERING PRACTICE | 2013年 / 21卷 / 04期

关键词：

Hydraulic excavator; Gray box modeling; Variable displacement pump; Load sensing; Excavator kinematics;

D O I：

10.1016/j.conengprac.2012.11.011

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper describes the results of a study focused on the application of gray box modeling methodology on an excavator's hydraulic pump. This modeling approach has been adapted to accelerate the control system development time for a complete excavator, while providing accurate system dynamics. This mathematical model has been developed using the bond graph methodology. The excavator is described by two models: a hydraulic model and a kinematic model; dynamic parameters are continuously calculated during an excavation cycle, providing a platform to study the pump's behavior. The gray box model of the variable displacement pump has been validated on the basis of a set of experimental data collected on a test rig and on the field using an excavator. Herewith the results of this study are presented. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：483 / 494

页数：12

共 18 条

[1]

Blakburn J. F., 1966, FLUID POWER CONTROL

[2] Numerical Analysis of the Dynamic Behaviour of Axial Piston Pumps and Motors Slipper Bearings [J].