基于虚拟仪器的电液舵机测试系统

Performance Test System of a Electro-hydraulic SteeringEngine Based on Virtual Instrument

摘要:

为减少电液舵机的测试时间,减小测试对舵机的损伤,提高舵机的测试效率和精度,提出了以虚拟仪器为基础,设计了一套集机械、液压、电气以及计算机为一体的工业测控系统,硬件由工控机、PCI采集板卡、通讯总线、泵站和PLC控制柜、电气控制柜等组成,软件在LabWindows/CVI环境下编写,采用RTX实时系统、多线程处理和TDMS等核心处理方法,实现了对于某型电液舵机性能指标的自动化测试,试验表明系统运行稳定,测试结果准确可靠。

Abstract:

In order to reduce the test time of the electro-hydraulic steering engine, reduce the damage to the steering engine and improve the test efficiency and precision, it was designed a test system that contain mechanical, hydraulic, electrical and computer based on virtual Instrument. The hardware was composed by industrial computer, PCI board, communication bus, pump station, PLC and electrical control cabinet. The software is designed in LabWindows/CVI platform. RTX real-time system, multi-thread processing and TDMS and other core processing methods was used in test system. With this system, performance of the electro-hydraulic steering engine’s was tested automated. The application showed that the system run steadily with high system precision.