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Wifi-type EOL tool and diagnosis method utilizing same

A tool, self-diagnostic system technology, applied in general control systems, instruments, electrical testing/monitoring, etc., can solve problems such as poor contact, and achieve cost savings, production cost savings, and convenient processing.

Active Publication Date: 2016-09-28
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wifi version of the EOL tool and a diagnostic method using the tool, which is used to solve the problem that the existing diagnostic tool is a wired harness version, which is prone to poor contact during bumpy driving

Method used

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  • Wifi-type EOL tool and diagnosis method utilizing same
  • Wifi-type EOL tool and diagnosis method utilizing same
  • Wifi-type EOL tool and diagnosis method utilizing same

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Experimental program
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Embodiment Construction

[0031] like figure 1 As shown, the wifi version of the EOL tool is used for vehicle information diagnosis and program flashing, and is connected to the self-diagnosis system of the vehicle, including a master control module, a communication module, a WIFI module and a power conversion module; the communication module includes CAN communication module and K communication module, communication module is connected with the OBD diagnosis interface of self-diagnosis system and master control module respectively; The power terminal is connected, and the WIFI module is connected to the master control module through the USART, such as figure 2As shown, the master control module is connected to the upper computer through the SWD interface, which is used for the master control module to debug the program and download the underlying program from the upper computer.

[0032] image 3 For OBD interface circuit, using Plug-8X2 chip.

[0033] like Figure 4 As shown, the master control ...

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PUM

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Abstract

The invention provides a wifi-type EOL tool and a diagnosis method utilizing the same. The wifi-type EOL tool is used for diagnosis of vehicle information and flash of programs, and is connected with a self-diagnosis system of a vehicle. The tool comprises a general control module, a communication module, a WIFI module and a power conversion module. The communication module comprises a CAN communication module and a K communication module; the communication module is connected with an OBD diagnosis interface of the self-diagnosis system and the general control module; the input end of the power conversion module is connected with a vehicle-mounted power source; the output end of the power conversion module is connected with the power end of the general control module; a WIFI module is connected with the general control module through a USART; and the general control module is connected with an upper computer through an SWD interface. The invention also provides the diagnosis method utilizing the wifi-type EOL tool. The problems of poor contact or that connection cannot be established and the like due to onboard interface mechanical failure can be prevented, and reliability of the diagnosis tool is guaranteed.

Description

technical field [0001] The invention relates to the technical field of automobile diagnosis, in particular to a wifi version EOL tool and a diagnosis method using the tool. Background technique [0002] In recent years, commercial vehicle electronic control technology has developed rapidly, and the number of electronic control units on commercial vehicles is increasing, such as engine electronic control unit (ECU), transmission electronic control unit (TCU), instrument controller (CBCU), ABS system Automatic controller, AMT controller, etc. These electronic control units communicate through CAN bus or K line. [0003] At present, most of the diagnostic tools are wired harness versions, which are connected to the diagnostic tool after being connected to the diagnostic tool through the OBD II port, and then the diagnostic tool is connected to the host computer through the serial port to USB harness. Excessive wiring harness connections increase the cost of equipment. In addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0208
Inventor 高崧林高发廷王柯
Owner SINO TRUK JINAN POWER
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