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工程机械的现场测试受天气、环境、仪器、设备等众多因素的影响,要想通过现场测试方法弄清工程机械系统性能是比较困难的。因此,研究一种既反映工程机械的实际工况,又简便易行、准确可靠的测试方法甚有必要。本文以泵控马达驱动的行走机械测试装置为例,介绍用模拟计算机实时仿真液压系统主机的负载,反馈给液压控制系统,进行半实物仿真测试或称闭环测试。该装置和测试方法适用于一般工程机械。闭环测试装置图1是泵控马达行走机械的闭环试验原理框图。它是模拟控制器和部分实物联合起来进行的闭环试验,实质上是一种半实物动
Field testing of construction machinery by the weather, environment, equipment, equipment and many other factors, in order to get through on-site test methods to understand the performance of construction machinery system is more difficult. Therefore, it is necessary to study a test method that not only reflects the actual working conditions of construction machinery, but also is simple, accurate and reliable. In this paper, a pump controlled motor driven walking mechanical testing device is taken as an example to introduce the real-time simulation of the hydraulic system host computer load with a simulation computer, feedback to the hydraulic control system, semi-physical simulation test or closed-loop test. The device and test method is suitable for general construction machinery. Closed-loop test device Figure 1 is a pump control motor traveling mechanical closed-loop test block diagram. It is a closed-loop test conducted by an analog controller and part of the physical, in essence, a semi-physical move