Automobile analogue communication protocol analyzer and analyzing method thereof

Abstract

The invention discloses an automobile analogue communication protocol analyzer. The automobile analogue communication protocol analyzer comprises an analyzing end, a diagnosing end and a diagnosis protocol interface; the diagnosing end is used for performing comparative judgment on the frame sequence frame of a request diagnosis protocol sent by the analyzing end and the format of the protocol data source read by the diagnosis protocol interface; the diagnosing end returns diagnosis testing data to the analyzing end for protocol analysis and visual display; and the analyzing end packs the data generated after the analysis and sends the protocol frame sequence data to the diagnosing end. An analyzing method of the automobile analogue communication protocol analyzer is disclosed. The analyzing method comprises the steps that the analyzing end sends a diagnosis protocol to the diagnosing end and judges whether the analyzing end needs a protocol analysis request; the diagnosing end adds a protocol identifiers to different function modules of the analyzing end, and the diagnosing end reads special function identifiers of different function modules and modifies the identifiers based on prompt messages of different function modules. The automobile analyzer can collect the automobile fault information and generate a reply command rapidly, and the pseudotime is shortened greatly.

Description

technical field [0001] The invention relates to the field of automobile electronic detection technology, in particular to an automobile analog communication protocol parser and a parsing method thereof. Background technique [0002] Automobile diagnosis is an essential part of the automobile industry, and the XML resource and program development method is currently the mainstream development method based on PC or Android system diagnostic instrument settings. Diagnostic instruments have also been developed rapidly, "On-Board Diagnostic System: On-Board Diagnostic, abbreviated as: OBD". The on-board diagnostic instrument (OBD) can monitor the running status of the engine at any time, and once it finds a situation that may cause a failure, it will immediately issue a warning, so it has become an essential tool for light vehicles. Generally, the car is equipped with an OBD interface for recording the running status of the car engine and the data of each processing system in ea...

AI Technical Summary

Problems solved by technology

In addition, engineers often need to connect the car fault diagnosis instrument with the car ECU simulator, computer and external power supply when developing the car fault test, such as figure 1 As shown, the most important workload in the development process of automotive diagnostic software is to fill in XML resources. XML resources are an important part of automotive diagnostic software. A small amount of interrupt and processing program codes plus different similar XML resources can form a coverage. Diagnosis software for tens of thousands of brand models. However, filling in XML resources is a time-consuming and cumbersome task. The efficiency of manual filling is too low, and R&D personnel are prone to fatigue and error. With continuous production, more and more fault information of automotive ECU simulators will be included in the diagnostic instrument, and there will be incompatibility between new manufacturers and new models of vehicles. Therefore, fault diagnosis information will occupy more storage space. Large, waste more diagnostic instrument storage space, for this reason, developed an auxiliary development tool that can automatically generate XML resources and automatically generate resources for simulating automotive ECU software—protocol parser, to achieve the purpose of continuously expanding the diagnostic development objects, In order to greatly shorten the time for filling in XML resources and automotive ECU simulation resources during the development of automotive diagnostics, it improves efficiency and accuracy

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