Automobile fault diagnosis system based on Android platform

Abstract

The invention provides an automobile fault diagnosis system based on an Android platform. The automobile fault diagnosis system comprises an ECU and a CAN bus, and further comprises a data conversion module, an automobile fault decoding module and an automobile fault expert analysis module, wherein one end of the data conversion module is connected with the CAN bus, the other end of the data conversion module is connected with a Bluetooth module in a wireless mode, the Bluetooth module is connected with the automobile fault decoding module, and the automobile fault decoding module is connected with the automobile fault expert analysis module. The automobile fault diagnosis system lowers automobile fault diagnosis cost, enables a diagnosis process to be more convenient, and improves automobile maintenance efficiency.

Description

technical field [0001] The invention relates to the field of automotive electronics, in particular to an Android platform-based automotive fault diagnosis system. Background technique [0002] The existing automobile fault diagnosis system can read out, display, store and process the fault codes in the automobile ECU, and can easily and accurately detect automobile faults, which is beneficial to the detection of automobile operating conditions and automobile fault maintenance. At present, there are mainly two kinds of automobile fault diagnosis instrument schemes designed at home and abroad: the fault diagnosis instrument based on PC and the handheld fault diagnosis instrument based on single-chip microcomputer / FPGA (Field Programmable Gate Array, that is, Field Programmable Gate Array). The hardware cost of these two solutions is relatively high, and the diagnostic instrument based on the PC is not convenient to carry. In addition, even if the maintenance personnel have dia...

AI Technical Summary

Problems solved by technology

[0006] 1. The diagnosis process must rely on the network, and it is only suitable for use in places with network coverage. If there is no network coverage in the workplace, it will cause the vehicle fault diagnosis instrument to be unusable, and the portability of the automobile fault diagnosis instrument will be limited;

[0007] 2. A stable running server is needed to support the normal operation of all handheld terminals. It is only suitable for use in repair shops. If there is a network failure or server failure, it will cause the car fault diagnosis instrument to be unusable, and it will also increase the system cost. ;

[0008] 3. It is necessary to design a dedicated handheld terminal for use with the server to read fault codes, communicate with the server, and display fault information, etc., which increases hardware costs and development difficulties, resulting in high cost of diagnostic instruments

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