为了满足技术人员对车辆自动变速系统的数据采集及分析的要求,设计了基于虚拟仪器平台LabVIEW的电控机械式自动变速器(automatic manual transmission,AMT)数据采集系统。阐述了AMT数据采集系统的基本原理,构建了系统的基本架构,继而从硬件平台的搭建以及上位机程序的编写这两个方面分别对系统进行了分析与研究,着重分析了利用LabVIEW实现的数据采集功能。实验表明,采用LabVIEW构建的AMT数据采集系统实现了AMT系统数据的采集、显示与存储的功能。同时使上位机界面更加直观且易于操作,便于工程技术人员及时地了解车辆运行的实时动态。
In order to meet the requirement of date acquisition of an automatic transmission system,an AMT data acquisition system based on LabVIEW was designed.The basic principle of the AMT data acquisition system was introduced,the basic system structure was built,the hardware and the software design written based on LabVIEW were studied,and the function of the data acquisition that based on LabVIEW was analyzed.The results showed that the function of the data acquisition,display and storage were realized.With this design,the user interface could be made more intuitive and easier to operate,so that the engineers could promptly get the system run-time information.