The thesis introduces the process of the equipment developing and analyses the direction of the theory research on Automobile Fault Diagnosis(AFD),based on a large of the abroad and domestic information.

• 本文在广泛收集国内外汽车诊断技术发展及现状等有关资料的基础上，全面论述和系统分析了汽车诊断设备的开发和诊断理论的研究成果及方向。