虚拟仪器技术在汽车性能测试中的应用

提出了一种基于虚拟仪器测试汽车性能的新方法,建立了基于虚拟仪器的汽车性能测试系统,该测试系统采用PC DAQ方案,通过多传感器采集和数据融合,配以PC机平台和虚拟仪器软件,构成了汽车各种性能的数据采集控制仪器和系统,从而将多种数字化的汽车性能测试仪器虚拟化为以PC机为核心和硬件支持的数字化、柔性化、智能化的汽车性能虚拟集成测试系统。该测试系统可以对汽车的排放性能、噪声、前大灯、制动性能、悬架特性、底盘测功、转向操纵以及侧滑等性能进行测试。实车测试证明:所开发的汽车性能测试系统的测试准确、可靠。

Application of virtual instrument technology in automobile performance test

In this paper, a new method of automobile performance test based on virtual instruments is presented against the disadvantages of traditional instruments in the field of automobile performance test.The automobile test system based on virtual instruments has been built.Authors use the PC-DAQ scheme and adopt multi-sensor and data fusion equipped with PC machine and the virtual instrument software. Thus,and the data gathering controlling instruments and system of automobile test based on the virtual instruments come into being. The test system can examine the performance of the automobile exhaust emission, the noise, the headlight, the braking system, the suspension system, the chassis power, the steer system and the sideslip.The method has been proved to be reliable and exact by test cars in practice.