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随着液压控制技术的不断发展,液压系统的高效率、优性能设计方案已经变为现实。目前国外发展的功率适应控制技术,其主要由负载传感控制与流量适应控制两部分组成。由于输出流量与压力均与负载相适应,主回路效率高达80%以上,比原有一般液压系统效率提高了一倍左右,具有明显的节能效果,很好的经济效益。流量适应控制泵的半桥组合回路在液压系统中,组成功率的两个主要物理量是压力和流量,而在一般常见系统中,压力与流量都是可变的,即负载压力与流量均为变量,为了实现最优效率设计方案,人们用了各种不同的逼近控制方案,例如恒功
With the continuous development of hydraulic control technology, hydraulic system design of high efficiency, excellent performance has become a reality. At present, the developed power adaptive control technology in foreign countries mainly consists of load sensing control and flow adaptive control. As the output flow and pressure are compatible with the load, the main circuit efficiency up to 80% or more, than the original general hydraulic system efficiency doubled, with significant energy savings, good economic benefits. In the hydraulic system, the two main physical quantities that make up the power are pressure and flow, whereas in common systems the pressure and flow are variable, ie the load pressure and flow are variables , In order to achieve the optimal efficiency of the design, people have used a variety of approximation control programs, such as constant power