Ethernet based vehicle-mounted diagnosis system and method thereof

An on-board diagnostic system and Ethernet technology, which is applied in the field of automotive electronics, can solve the problems of inconvenient maintenance and high cost of automobile diagnosis and maintenance, and achieve the effects of convenience, high-speed reading and modification, and simplification of complexity.

Pending Publication Date: 2018-03-06
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, propose a vehicle-mounted diagnostic s...

Method used

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  • Ethernet based vehicle-mounted diagnosis system and method thereof
  • Ethernet based vehicle-mounted diagnosis system and method thereof
  • Ethernet based vehicle-mounted diagnosis system and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as image 3 As shown, the present embodiment provides a vehicle diagnostic system of a single vehicle and a single external test device, the external test device (notebook) 4 is connected with the Ethernet switch and the wireless LAN access point 1 through the Ethernet cable 2, and the vehicle to be diagnosed 6 It is connected to an Ethernet switch and a wireless LAN access point 1 through an Ethernet cable 2 . An external test device (PDA) 5 is connected to an access and Ethernet switch and a wireless local area network access point 1 through a wireless network.

[0045] The application environment of this embodiment is: after using a certain model for a period of time, it is found that the version of the car navigation system on the car is relatively low, and the map information is quite different from the actual road conditions, which cannot meet the needs of the car. The processing method in the prior art is: sending the vehicle to a 4S point or a repair shop ...

Embodiment 2

[0047] Such as Figure 4 As shown, the present embodiment provides a vehicle diagnostic system with multiple vehicles and a single external test device,

[0048] The external test equipment (PC) 4 is connected to the franchised dealership or repair workshop network 1 through the Ethernet cable 2, and the vehicle to be diagnosed 6 and the vehicle to be diagnosed 7 are connected to the franchised dealership or the repair workshop network 1 through the Ethernet cable 2, The logical connection between the external test equipment (PC) 4 and the vehicle to be diagnosed 6 is a logical channel 9, the vehicle to be diagnosed 8 is connected to the franchised dealership or the maintenance workshop network 1 through WLAN3, the external test equipment (PC) 4 and the vehicle to be diagnosed The logical connection between the vehicles 8 is a logical channel 10 . The web server 5 is connected to the dealership or repair shop network 1 via an Ethernet cable 2 .

[0049] The application envir...

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Abstract

The invention relates to an Ethernet-based on-board diagnostic system and its method, and its technical characteristics are: the on-board diagnostic system includes: the on-board Ethernet network is used for the vehicle's own communication and the transmission of diagnostic data; the external Ethernet network is connected to the on-board Ethernet and implemented Access function; the vehicle gateway is connected to the vehicle Ethernet network and the external Ethernet network; the vehicle diagnostic experience database is connected to the interactive information of the refresh diagnostic equipment, and the external refresh diagnostic equipment is based on the diagnosis refresh script returned by the diagnostic experience database through the vehicle gateway to the vehicle Ethernet Operate the vehicle inside. The present invention utilizes vehicle-mounted Ethernet technology for vehicle diagnosis, so that vehicle owners, engineers, maintenance personnel, etc. can realize high-speed reading and modification of vehicle diagnostic information in an Ethernet environment or a wireless network environment, greatly simplifying the complexity of the operation. While improving the diagnosis efficiency, it also reduces the cost and time required for vehicle diagnosis, and realizes the convenience of vehicle diagnosis.

Description

technical field [0001] The invention belongs to the technical field of automobile electronics, in particular to an Ethernet-based vehicle diagnosis system and a method thereof. Background technique [0002] With the sharp increase in the number of cars, car maintenance is becoming more and more important. Traditional car diagnosis and maintenance are limited to time and space requirements, and the operation complexity is high, the efficiency is low, and the cost of car diagnosis is high. At present, the diagnosis of most automobiles on the market is based on the communication method realized by the CAN bus, but the number of automobiles is constantly increasing, and the disadvantages of relatively complex and inefficient diagnosis using the CAN bus are becoming increasingly apparent. With the development of automotive electronics technology, how to improve the efficiency of automotive diagnostics and maintenance and reduce maintenance costs is an urgent problem to be solved...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 张小俊李宝田刘署光仇焕龙
Owner HEBEI UNIV OF TECH
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