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Equipment and method for setting faults of national III common-rail diesel engine

A diesel engine and fault technology, which is applied in the field of national III common rail diesel engine fault setting equipment, can solve the problems of high damage degree of the original vehicle, low fault setting efficiency and high efficiency, and achieve the effects of high setting efficiency, low cost and fast speed.

Pending Publication Date: 2020-05-29
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Purpose of the present invention: In order to solve the problems of low fault setting efficiency, high cost, and high degree of damage to the original vehicle in the actual operation process, the present invention proposes a national III common rail diesel engine fault setting equipment based on WiFi control. The working principle of the electronic control system of the rail diesel engine, and on the premise of collecting various common fault phenomena, carry out the design and development of the external fault setting equipment, and only need to operate the software control platform system to complete the circuit fault design of the common rail diesel engine. Fast and efficient

Method used

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  • Equipment and method for setting faults of national III common-rail diesel engine
  • Equipment and method for setting faults of national III common-rail diesel engine
  • Equipment and method for setting faults of national III common-rail diesel engine

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Embodiment 1

[0049] Such as Figure 5 As shown, a diesel engine fault setting device of this embodiment includes a relay combination module, an integrated control circuit, a WiFi remote operation software platform for sending fault setting instructions to the integrated control circuit, and a common rail diesel engine for fault setting. The first wire harness connector for electrical connection with the ECU end wire harness connector and the second wire harness connector for electrical connection with the ECU end wire harness connector; the relay combination module and the integrated control circuit are designed on one circuit board, and The relay combination module is connected with the integrated control circuit, and the integrated control circuit controls the on-off of the coil circuit of the relay in the relay combination module, and the remote operation software platform is connected with the integrated control circuit through the wireless network. Specifically, seefigure 1 , the rela...

Embodiment 2

[0054] On the basis of Embodiment 1, this embodiment proposes a method for setting a fault of a national III common rail diesel engine based on WiFi control, including the following steps:

[0055] Step 1: Connect the first harness connector to the common rail diesel engine end ECU harness connector to be set for failure, and connect the second harness connector to the ECU end harness connector;

[0056] Step 2: The operator sends corresponding instructions through the wireless network on the remote operation software platform, and the integrated control circuit receives the corresponding instructions through the GPRS module, and controls the on and off of the relay in the relay module; the on and off of the relay correspond to the original machine The corresponding faults that have been set;

[0057] Step 3: After the fault setting is successful, start the China III common rail diesel engine to generate a fault.

[0058] At this time, the trainees can use the special diagnos...

Embodiment 3

[0060] see image 3 , Take the fault of the boost pressure sensor as an example, the fault phenomenon is that the fault light is on, the boost pressure sensor will not work, the engine will shake, the acceleration will be weak, and the vehicle will be difficult to start after the engine is turned off, accompanied by the engine stalling.

[0061] The absolute pressure and intake air temperature sensors in the intake manifold of the WP4.1 National III common rail diesel engine on Dongfeng 1004 tractor are integrated. The absolute pressure in the intake manifold causes the silicon chip in the sensor to mechanically deform together with the piezoresistor, and the push rod connected to the silicon chip changes the value of the piezoresistor, thus causing the Wheatstone bridge to lose balance, and the silicon chip After processing by the circuit, a voltage signal linear with the pressure is formed. The boost pressure sensor has 4 output terminals, which are the ground wire of termi...

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Abstract

The invention discloses equipment for setting faults of a national III common-rail diesel engine. The equipment comprises a relay module for being electrically connected with an ECU of a common-rail diesel engine to be subjected to fault setting, an integrated control circuit for controlling the relay module, a remote operation terminal for sending a fault setting instruction to the integrated control circuit, a first wiring harness connector for being electrically connected with a common-rail diesel engine end ECU wiring harness connector to be subjected to fault setting, and a second wiringharness connector for being electrically connected with the ECU end wiring harness connector. The invention further discloses a fault setting method, which comprises the following steps: step 1, connecting a first wiring harness connector to a common-rail diesel engine end ECU wiring harness connector to be subjected to fault setting, and connecting a second wiring harness connector to an ECU endwiring harness connector; step 2, sending a fault setting instruction to an integrated control circuit through a remote operation terminal by an operator; step 3, controlling a relay in a relay moduleto carry out power-on and power-off control by the integrated control circuit according to the received fault setting instruction to complete fault setting; and step 4, starting an original machine to generate a fault.

Description

technical field [0001] The invention belongs to the technical field of diesel engines, and in particular relates to a national III common rail diesel engine fault setting equipment and method. Background technique [0002] The common rail diesel engine is a high-tech integrated product of machine, electricity and hydraulic. The technology is updated quickly, and the comprehensive ability of its maintenance personnel is high. The maintenance personnel must have the mechanical aspects of electronically controlled diesel engines and the aspects of electronic, electrical and automatic control. Composite professionals. [0003] The equipment for professional technical training mainly has the following methods: [0004] (1) National III Common Rail Diesel Engine Fault Diagnosis Simulation Software [0005] This kind of software is generally designed and developed by the software company according to the professional teaching needs of the customer group, according to the characte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/00
CPCG09B9/00
Inventor 尹华成子怡陈焱王想李南
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY