Research on vehicle fault diagnosis technology based on fault code generation mechanism
Using fault code analysis to judge vehicle fault is one of the most common,direct and effective means in automobile maintenance industry.However,in some cases,the description of the fault code is not exactly corresponding to the actual fault,which leads to the maintenance technicians to have a wrong understanding of the fault code and make a wrong judgment on the fault,which had become a technical bottleneck affecting the healthy development of the automobile service industry.The concept,types of faults and the relationship between faults and fault codes was described.Taking Magton B8 starter control system as an example,five typical tests were used to study the mechanism of fault code generation.By analyzing the test results,the logical relationship of fault code generation was clarified and summarized in the form of a table.The guiding function and application value of fault code generation mechanism in practice were verified by a case study.Through the research of vehicle fault diagnosis technology based on the fault code generation mechanism,the effect of"grasping the essence of fault code through the fault code surface"was achieved,which provides some reference for breaking the technical bottleneck in the process of fault code application and improving vehicle fault diagnosis technology.
electronic control systemfault codeformation mechanismverification analysiscontrol systemfault diagnosis
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