工程机械中大惯性及多执行器系统的电液控制研究

Based on the principle of meter-in, meter-out independent regulated unit and a calculated flow feedback control method on pressure decrease sensing, a new electro-hydraulic control principle and method for the high inertia loads of construction machine and multiple actuators system is advanced. The purpose is to avoid large pressure clash and shake in the acceleration, deceleration and brake process of high inertia loads of construction machine. And the rapidness of its acceleration, deceleration and brake process can be enhanced. It is an efficient way to realize free flow rate dividing and eliminate the interference between actuators when simultaneously operating multiple actuators. The structure of hydraulic control system is simplified and reliability is enhanced.

提出以进、出口节流独立调节原理和压差传感计算流量反馈的流量控制方法为基本结构的新型电液控制系统及控制方法，能完全避免大惯性负载加减速及制动过程；在多执行器复合操纵时，能高效率实现各执行器流量的任意分配，并有效避免各执行器间的相互干涉，同时大幅度简化传统的复杂液压系统结构。