Research and Development of Real-time Automotive Fault Warning System
Fu Tao · Journal of Shenzhen Polytechnic · 2009
Communication protocols and diagnostic modes using the second generation of On-Board-Diagnosis(OBD-II) system is researched and a project scheme of real-time automotive fault warning system based on OBD-II system is put forward.Total Control Unit(TCU) of the warning system,signal conversion module between TCU and OBD-II system,preliminary expert system for automotive fault diagnosis,LCD display system and phonic broadcast system have been developed.Test results on sample machines prove that the warning system can successfully acquires data stream trouble codes from automotive electronic control unit,and the expert system can comprehensively analyze possible fault causes and then give the driver solutions.The fault information and solutions can be displayed on LCD and converted into voice by text to speech module.The wide application of the warning system would effectively reduce the costs of vehicle operation and maintenance and greatly improve vehicle road safety.