Online fault diagnosis system and method for excavator

A fault diagnosis system and fault diagnosis technology, applied in the direction of earth mover/shovel, construction, etc., can solve the problems of inconvenient charging, affecting debugging work, short use time, etc., achieving mature technology, high hardware configuration, and easy portability. Effect

Active Publication Date: 2012-05-02
XCMG EXCAVATOR MACHINERY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] 1. The laptop is bulky and inconvenient to carry
[0005] 2. The power is limited and the use time is short
When there is no external power supply, the notebook computer can only last for about 2 hours. It is inconvenient to charge in the wild or in places with limited condition

Method used

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  • Online fault diagnosis system and method for excavator
  • Online fault diagnosis system and method for excavator
  • Online fault diagnosis system and method for excavator

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with accompanying drawing.

[0035] Such as figure 1 As shown, an online fault diagnosis system for an excavator includes an online fault diagnosis instrument, a main controller, an ECM controller for an electric jet engine, a multi-function display and a GPS controller. The CANH and CANL ports of the multi-function display, the CANH and CANL ports of the GPS controller are connected with the CANH0 and CANL0 ports of the main controller to form a CAN0 bus local area network; the CANH and CANL ports of the ECM controller of the EFI engine CANH1, The CANL1 ports are connected to form a CAN1 bus local area network; the data and information on the two CAN buses are processed by the internal program of the main control, and can communicate with each other. The actuators (main pump, main valve, etc.) controlled by various detection input signals and output signals on the machine connected to the input port ...

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Abstract

The invention discloses an online fault diagnosis system and method for an excavator, which belong to the technical field of fault diagnosis in the excavator. The system comprises an online fault diagnosis instrument, a main controller, an electronic injection engine ECM (Engine Control Module) controller, a multifunctional display, and a GPS (Global Position System) controller; and the fault diagnosis method is realized by using the system. The online fault diagnosis system and method disclosed by the invention have the beneficial effects that: a general MID (Mobile Internet Device) on the market is selected and used as an fault diagnosis instrument, and the general MID has high hardware configuration, mature technique and good software development base platform and is convenient to carry and easy to develop a novel application software; the system mainly performs the communication among various data and information through a local area network formed by CAN (Control Area Network) buses; and the fault diagnosis instrument can monitor more working states, analyze the working states and modify parameters of the whole excavator on line and the like, so that much working state data of the whole excavator can be provided for repair engineers and technical staffs.

Description

technical field [0001] The invention relates to an online fault diagnosis system and method for construction machinery, in particular to an excavator online fault diagnosis system and method, belonging to the technical field of excavator fault diagnosis. Background technique [0002] The hydraulic excavator is a complex mechanical, electrical and hydraulic engineering machinery equipment, and its maintenance is very professional. In recent years, my country's excavator industry has developed rapidly, but problems such as backward technical force and lack of technical personnel have gradually been exposed. The hydraulic excavator has changed from the previous mechanical and hydraulic dominance to a typical mechatronic-hydraulic integrated product. Simple and intuitive judgment can no longer meet the maintenance requirements of the machine, and it also puts forward higher requirements for service and maintenance personnel. With the extensive use of electronic control and moni...

Claims

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Application Information

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IPC IPC(8): E02F9/24E02F9/26
Inventor 杨梅张宏高见厂刘立祥孟凡建王渠陶仕甫郑磊
Owner XCMG EXCAVATOR MACHINERY
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