基于虚拟仪器技术的远程发动机测试诊断系统设计

The Design on Long-distance Test Diagnosis System of Car Engine Based on Virtal Instrument

提出了一种基于虚拟仪器测试汽车发动机性能的新方法,建立了基于虚拟仪器的汽车发动机性能远程测试诊断系统。该系统采用PC-DAQ方案,通过多传感器采集和数据融合,配以车载式PC机、数据采集卡和GPRS无线上网卡为主要硬件平台,以LabVIEW为软件开发平台,构成了汽车发动机性能的数据采集控制仪器。本文从硬件构成和软件功能上对整个系统的建立进行了详细介绍。实践表明,该检测系统具有较高的精度。

This article proposed an approach based on the hypothesized instrument to test motor car engine performance, and established long-distance test diagnosis system of car engine performance. This system used PC DAQ plan, resorting to hardware, which contained multi-sensor gathering and the data fusion, truck-mounted type PC machine, GPRS wireless, and software which constituted by LabVIEW, the motor car engine performance data acquisition control instrument was constituted. This article carried on the detailed introduction on the hardware＇s constitution and the software＇s function. The practice had indicated that this detecting system had the high precision.