Portable new energy carriage fault diagnosis system and device

Abstract

The invention discloses a portable new energy carriage fault diagnosis system and device and belongs to the technical field of new energy carriage fault diagnosis. The system comprises a CAN communication module which is connected with a vehicle CAN bus and is used for reading a fault code of a vehicle, an embedded chip which is electrically connected with the CAN communication module and is usedfor analyzing the fault code, a power source module electrically connected with the embedded chip, and a display module which is electrically connected with the embedded chip and is used for displaying the information of the fault code, wherein the embedded chip is connected with a storage module, the embedded chip has an analyzing program which is used for analyzing the fault code and is based onSAE-J1939 international standards, and the storage module is internally stored with a fault message database used for comparing with the fault code analyzed by the analyzing program. The system is advantaged in that the system is convenient to use, no extra conversion device is needed, the system is convenient to carry, the fault can be directly determined through comparison by the fault messagedatabase, a maintainer is facilitated to solve an actual problem, and an operator is guided to effectively position and solve the problem.

Description

Technical field [0001] The invention relates to the technical field of fault diagnosis for new energy buses, and more specifically to a portable fault diagnosis system and device for new energy buses. Background technique [0002] As countries all over the world pay more attention to environmental issues, research on new energy buses has been vigorously developed. It is of great significance to ensure that new energy buses have a high utilization rate, which is of great help to environmental protection, and it is of great significance to quickly solve various problems in the use of buses. The maintenance process of new energy buses has the following problems: [0003] The electronic integration of new energy buses is very high, the information communication of each electronic controller is complicated, and each system is kept in good working condition to ensure that the whole vehicle is in good condition; the judgment of the whole vehicle condition needs to consider various parame...

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Problems solved by technology

[0003] The electronic integration of new energy buses is very high, and the information communication of each electronic controller is complicated. Only when all systems are kept in good working condition can the whole vehicle be in good condition; the judgment of the whole vehicle condition needs to consider many parameters, including energy storage System, electric control and motor drive system and other information require maintenance personnel to be able to comprehensively analyze various information to make fault judgments, and to find key points for troubleshooting. There are few experienced after-sales engineers, which brings a lot of trouble to customers when using new energy buses. so much inconvenience

Fault diagnosis in the bus industry is more about being able to accurately locate the faults of each subsystem, which requires maintenance personnel to have a comprehensive understanding of the functions of the subsystems provided by each supplier, but there is a lot of information, and it is difficult to apply useful information in an orderly manner Solve the problem

The characteristics of passenger cars are many varieties and small batches, which also makes the problems encountered by maintenance personnel not uniform, and the information of fault diagnosis work has the characteristics of complicated and redundant

[0004] Domestic fault diagnosis systems are mixed, and most of them use computers to connect to the communication conversion device and then connect to the car's diagnostic port. This method requires a heavy computer and communication conversion device, and requires very professional engineering and technical personnel to complete. Both restrict the repair and maintenance of new energy buses by traditional maintenance workers

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