工程车辆闭式液压行走控制系统的设计  

Design of Closed Loop Hydraulic Driving Control System for Construction Vehicle

作　　者：周勇汉 赵杰 刘宁宁 许建良 张磊 

机构地区：[1]中车山东机车车辆有限公司,山东济南250022

出　　处：《凿岩机械气动工具》2017年第2期17-20,共4页Rock Drilling Machinery & Pneumatic Tools

摘　　要：在闭式液压驱动的工程车辆中,行走速度调节范围与精度控制之间一直存在相互制约的问题。多挡位控制方法的出现较好地解决了这一难题。本文着重探讨了一种多挡位行走驱动控制系统的设计。通过增加液压比例放大器的数量和速度多挡位切换的方式,在提高了工程车辆液压驱动速度调节范围的同时实现了速度的精确控制。本控制系统本着低成本、易实现、节能环保的设计理念,取得了良好的应用效果。There has been a problem of mutual restraint between the speed adjustment range and the precision control in a closed hydraulic drive of the construction vehicle. The emergence of multi-gear control method solved the problem well. This paperfocuses on the design of a multi-gear drive control system .By increasing the number and speed of hydraulic proportional amplifiers＆ the speed of precision control is achieved while increasing the hydraulic drive speed adjustment range of the construction vehicle. This control system following in a low-cost＆ easy to achieve＆ energy saving and environmental protection＆ design concept achieved a good application results.

关 键 词：闭式液压 行走控制 比例放大器 多挡位 工程车辆 

分 类 号：U469.6[机械工程—车辆工程]