基于虚拟仪器汽车动力性和经济性测试系统的研究与开发

Study on automobile dynamic performance and fuel economy measurement system

本文针对当前汽车动力性和经济性的测试方法结果单一且可分析性差的问题,依据虚拟仪器技术建立了汽车动力性和经济性测试系统。系统以LabVIEW为软件开发平台,配以笔记本电脑、传感器、信号调理卡和数据采集卡,可实现对汽车动力性和经济性的测试,包括实时车速、路程零到百公里加速时间以及百公里油耗的显示,并将汽车的实时车速和百公里油耗联系起来绘制不同工况下的等速百公里油耗曲线。通过对该系统进行实际实验和结果误差分析来验证系统的可行性与实用性。结果表明该系统性能稳定、复现性能良好,能较精确地反映测试实验数据。

Based on virtual instrument technology,the automobile dynamic performance and fuel economy measurement system is set up to improve the current testing methods whose results are not humanization.The system which is developed with LabVIEW and consists of notebook,sensor,sample-and-hold accessory and data acquisition card,can valuate the automobile dynamic performance and fuel economy,including the display of velocity,acceleration,distance and fuel consumption per 100 km curve of equal velocity.The feasibility...