COMPUTATIONAL FLOW RATE FEEDBACK AND CONTROL METHOD IN HYDRAULIC ELEVATORS

被引：5

作者：

Xu Bing Ma Jien Lin Jianjie State Key Laboratory of Fluid Power Transmission and Control

机构：

来源：

Chinese Journal of Mechanical Engineering | 2005年 / 04期

基金：

中国国家自然科学基金;

关键词：

Hydraulic elevator Computational flow rate Proportional valve;

D O I：

暂无

中图分类号：

TH211.6 [];

学科分类号：

0802 ;

摘要：

The computational flow rate feedback and control method,which can be used in proportional valve controlled hydraulic elevators,is discussed and analyzed.In a hydraulic elevator with this method,microprocessor receives pressure information from the pressure transducers and computes the flow rate through the proportional valve based on pressure-flow conversion real time algorithm.This hydraulic elevator is of lower cost and energy consumption than the conventional closed loop control hydraulic elevator whose flow rate is measured by a flow meter.Experiments are carried out on a test rig which could simulate the load of hydraulic elevator.According to the experiment results,the means to modify the pressure-flow conversion algorithm are pointed out.

引用

页码：490 / 493

页数：4

共 3 条

[1] Research on calculated flow feedback control method and its characteristic. Gu L Y,Wang Q F. Chinese Journal of Mechanical Engineering .
[2] An unsteady flow rate measurement method utilizing hydraulic pipeline dynamics along a pipeline-a method using pressures at two distant points. Yokota S,Kim D T,Nakano K. JSME International Journal . 1992
[3] Research on proportional valve controlled hydraulic elevator using computed flow feedback and control:[Master Dissertation]. Juan C. . 2003

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