Research on the Developing of Electro-hydraulic Control System for Independent Steering in Girder Transport Vehicle

摘要

In order to meet the accuracy and coordination of girder transport vehicle steering, the independent steering electro-hydraulic control system based on the load-sensing technique is developed. To prove the poor steering coordination while the engines are at low speed, the electro-hydraulic control system of independent steering is improved, and the method which is to reduce the control current of steering electro-hydraulic proportional valve by the same rate is applied to avoid the saturation of the hydraulic pump. The testing in the field indicates that the improvement of electro-hydraulic control system for independent steering in girder transport vehicle is effective.