一种使用半桥理论理解泵控系统控制原理的方法

A Method of Using Half Bridge Theory to Understand The Control Principle of Pump Control System

本文以力士乐泵控系统中较典型的负载敏感(流量控制)泵液压控制原理作为研究对象,通过较为详细的分析液压控制过程,指出按常规分析方法产生的误解,找出产生误解的原因并加以说明。同时应用阻尼和液压半桥理论,通过等效图法方法重新理解负载敏感泵的工作过程。

This paper takes the typical hydraulic control principle of load sensitive(flow control)pump in Rexroth pump control system as the research object.Through a more detailed analysis of the hydraulic control process,this paper points out the misunderstandings caused by conventional analysis methods,finds out the causes of misunderstandings and explains them.At the same time,using damping and hydraulic half bridge theory,the working process of load sensitive pump is re understood by equivalent diagram method.