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Fault recording device and method

A fault record and fault information technology, applied in the direction of instruments, electrical testing/monitoring, control/regulation systems, etc., can solve the problems of high investment cost, difficulty in saving fault data in real time, and inability to accurately locate the problem, so as to improve efficiency Effect

Inactive Publication Date: 2015-09-16
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the fault code is only a simple statement of the fault, it will not reflect the vehicle situation and the bus situation at that time, and it cannot accurately locate the problem
Its main disadvantages are: it is difficult to save occasional fault data in real time, the data redundancy is high, and the investment cost is high.

Method used

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  • Fault recording device and method
  • Fault recording device and method
  • Fault recording device and method

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Embodiment Construction

[0032] In order to enable those skilled in the art to further understand the features and technical contents of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings and implementation methods.

[0033] In view of the current problems of simple fault codes, difficulty in real-time data storage, high data redundancy, and high investment costs, the embodiment of the present invention provides a fault recording device and method, which can simply and conveniently record faults, fault occurrence time, and vehicle information when faults occur , which has a very good role in promoting the efficient analysis of frequent faults and sporadic faults.

[0034] Vehicle CAN bus, the full name of Controller Area Network (Controller Area Network), it is a serial data communication protocol, designed as a microcontroller communication in the automotive environment, between the electronic control units (r...

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Abstract

The invention relates to the field of automotive fault diagnosis, and particularly relates to a fault recording device and method. The fault recording device comprises a gateway processor, a random access memory RAM which is connected with the gateway processor through a CAN bus, and an electric erasable programmable read only memory EEPROM. RAM stores a CAN bus message received by the gateway processor. After the gateway processor receives the CAN bus message with fault information, the CAN bus message which is stored in RAM and contains the fault information is written into EEPROM, and at the same time time information is acquired. The time information is used mark the CAN bus message written in EEPROM. According to the invention, if the whole vehicle has an electrical fault, and especially a sporadic fault, the real-time fault information can be easily and effectively recorded; and the efficiency of troubleshooting is improved.

Description

technical field [0001] The invention relates to the field of vehicle fault diagnosis, in particular to a fault recording device and method. Background technique [0002] Automobile fault diagnosis refers to the process of using special tools, instruments, equipment and software to detect, troubleshoot, analyze and judge automobile faults in accordance with relevant technical standards, so as to find out the cause of the fault and confirm the fault location. The diagnosis methods of automobile faults are basically artificial visual experience diagnosis method and instrument equipment diagnosis method. With the development of automobile technology, especially the application of electronic technology and computer technology in automobiles, automobile fault diagnosis is changing from traditional experience diagnosis methods such as eye observation, ear hearing, nose smell, hand touch, isolation, test and comparison to The development of a modern automotive fault diagnosis techn...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0216G05B23/0264
Inventor 杨法松
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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