利用虚拟仪器技术和神经网络成功构建了一种汽车故障诊断仪器。它具有数字万用表和汽车示波器的双重功能 ,能连续检测、记录、显示和存储电喷汽车或化油器式汽车的电子零部件或电气系统的电子波形 ;配有神经网络专家系统 ,在显示波形的同时 ,直接给出诊断结果即指示故障部件并说明原因 ,因而是一种理想的汽车在线故障诊断工具。经实车测试 ,该检测仪测量结果正确 ,可靠性高 ,完全可以替代进口的汽车测试设备。 Using virtual instrument technology and neural network successfully constructed a vehicle fault diagnosis instrument. It has dual functions of digital multimeter and automotive oscilloscope and can continuously detect, record, display and store the electronic waveform of electronic parts or electrical system of EFI or carburetor. Equipped with neural network expert system, At the same time, the diagnostic result is given directly to indicate the fault parts and explain the reason, and therefore is an ideal vehicle online fault diagnosis tool. The real car test, the detector measurement results are correct, high reliability, can replace the imported car test equipment.