CN111179681A

CN111179681A - Audi engine fault diagnosis teaching platform based on ODIS

Info

Publication number: CN111179681A
Application number: CN202010047320.8A
Authority: CN
Inventors: 郭彬; 丁成业
Original assignee: Nanjing Communications Institute of Technology
Current assignee: Nanjing Communications Institute of Technology
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-05-19

Abstract

The invention discloses an ODIS-based Audi engine fault diagnosis teaching platform which comprises a teaching display module, an ODIS module, an engine and rack module, a signal pickup module and a fault setting module, wherein the teaching display module sends a signal to the fault setting module, the fault setting module sends the signal to the engine and rack module, the engine and rack module are in bidirectional connection with the ODIS module, and the ODIS module is in bidirectional connection and respectively sends the signal to the signal pickup module and the teaching display module. This audi engine fault diagnosis teaching platform based on ODIS has solved the teaching resource very limited, can not satisfy the problem of teaching demand far away, and secondly through expanding and optimizing past teaching platform function, cultivates the student and draws the ability of scientific problem, acquireing knowledge, application knowledge and mastering new knowledge from the reality.

Description

Audi engine fault diagnosis teaching platform based on ODIS

Technical Field

The invention relates to the technical field of diagnosis and teaching, in particular to an Audi engine fault diagnosis teaching platform based on ODIS.

Background

At present, the training teaching resources with high efficiency for high-time use are very limited, and the teaching requirements can not be met. Therefore, it is very urgent and necessary to develop the present device and resources for the second time. The engine is used as the heart of the automobile, and the using performance of the automobile is directly influenced if the state of the engine is normal. Therefore, in order to effectively impart knowledge and skills in the aspect of engine fault diagnosis, an odi engine fault diagnosis teaching platform integrating fault setting, signal detection, diagnosis analysis and convenient display is to be developed based on the ODIS.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an ODIS-based Audi engine fault diagnosis teaching platform, and solves the problems that the training teaching resources of high-efficiency training are very limited and the teaching requirements can not be met.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the Audi engine fault diagnosis teaching platform based on the ODIS comprises a teaching display module, an ODIS module, an engine and rack module, a signal pickup module and a fault setting module, wherein the teaching display module sends a signal to the fault setting module, the fault setting module sends the signal to the engine and rack module, the engine and rack module is in bidirectional connection with the ODIS module, the ODIS module is in bidirectional connection and sends the signal to the signal pickup module and the teaching display module respectively, and the signal pickup module is in bidirectional connection with the fault setting module.

Preferably, the fault setting module comprises a LABVIEW-based fault setting module, a single-chip microcomputer control relay circuit module and an engine module, the LABVIEW-based fault setting module sends a signal to the single-chip microcomputer control relay circuit module, the single-chip microcomputer control relay circuit module sends a signal to the engine module, programming software drives the single-chip microcomputer, the single-chip microcomputer controls the relay, and common faults of short circuit, open circuit, virtual connection and the like of an engine electrical system circuit are further realized.

Preferably, the signal pickup module further comprises a signal pickup box, the signal pickup box comprising a sensor actuator harness plug, a break-make switch and an ECU socket, the break-make switch being mounted between the sensor actuator harness plug and the ECU socket.

Preferably, the teaching display module comprises a projector, a material object exhibition stand, a large-size display, a desktop computer, a notebook computer and a multimedia central controller, the multimedia central controller receives external data and then sends the external data to the projector, the material object exhibition stand, the large-size display, the desktop computer and the notebook computer, the requirement of teaching display in different links is met, and a plurality of display means are adopted to improve the teaching effect.

Preferably, the on-off switch is provided with a plurality of switches, and the signal pickup box is further provided with a measuring hole corresponding to the on-off switch, so as to facilitate measurement of signals in the fault diagnosis process.

(III) advantageous effects

The invention provides an Audi engine fault diagnosis teaching platform based on ODIS. The method has the following beneficial effects:

the Audi engine fault diagnosis teaching platform based on the ODIS solves the problems that teaching resources are very limited and the teaching requirements cannot be met, firstly, the existing experimental practical training equipment is enriched, and the practical teaching requirements are met; secondly, by expanding and optimizing the functions of the original teaching platform, the teaching effect of teachers is improved, and the independent analysis and diagnosis capability of students is better trained; and finally, the students participate in design and manufacture, and the abilities of extracting scientific problems, acquiring knowledge, applying knowledge and mastering new knowledge from the practice of the students are cultured.

Drawings

FIG. 1 is a schematic diagram of an ODIS-based Audi engine fault diagnosis teaching platform architecture of the present invention;

FIG. 2 is a schematic diagram of the fault setting principle of the present invention;

FIG. 3 is a schematic diagram of the signal pickup box of the present invention;

FIG. 4 is a schematic structural diagram of the teaching demonstration module of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an Oddi engine fault diagnosis teaching platform based on ODIS comprises a teaching display module, an ODIS module, an engine and rack module, a signal pickup module and a fault setting module, wherein the teaching display module sends a signal to the fault setting module, the fault setting module sends the signal to the engine and rack module, the engine and rack module is in bidirectional connection with the ODIS module, the ODIS module is in bidirectional connection and sends the signal to the signal pickup module and the teaching display module respectively, the signal pickup module is in bidirectional connection with the fault setting module, the ODIS module provides flexible fault diagnosis query, clear measurement data display and more convenient diagnosis entry, fault diagnosis, measurement and function matching of each electrical control system, the ODIS is matched with the developed engine fault diagnosis teaching platform, and the engine and rack module can also realize selection of bracket materials, The method comprises the steps of finite element stress analysis of the bracket, structural optimization of the bracket, noise reduction treatment and simulation of a machining process.

The fault setting module comprises a fault setting module based on LABVIEW, a single chip microcomputer control relay circuit module and an engine module, the fault setting module based on LABVIEW sends a signal to the single chip microcomputer control relay circuit module, the single chip microcomputer control relay circuit module sends a signal to the engine module, programming software drives a single chip microcomputer, and the single chip microcomputer controls a relay, so that common faults of short circuit, open circuit, virtual connection and the like of an engine electrical system circuit are realized.

The signal pickup module also comprises a signal pickup box, the signal pickup box comprises a sensor actuator wire harness plug, a break-make switch and an ECU socket, and the break-make switch is arranged between the sensor actuator wire harness plug and the ECU socket.

The teaching display module comprises a projector, a material object exhibition stand, a large-size display, a desktop computer, a notebook computer and a multimedia central controller, the multimedia central controller receives external data and then sends the external data to the projector, the material object exhibition stand, the large-size display, the desktop computer and the notebook computer, the requirement of displaying in different teaching links is met, and a plurality of display means are needed to improve the teaching effect.

The on-off switches are provided with a plurality of measuring holes corresponding to the on-off switches.

The research and test method of the invention also comprises the following steps:

literature methods of study: the research refers to documents, collects relevant data of the automobile engine fault diagnosis rack, comprises the current work and successful experience, summarizes the existing problems of the automobile engine fault diagnosis rack, and determines the technology adopted by each part in the scheme;

the investigation method comprises the following steps: visiting automobile teaching equipment development enterprises, investigating and researching the technical scheme adopted by the current automobile engine teaching rack, collecting related data, and completing investigation reports;

the test method comprises the following steps: in the design and manufacturing process of the engine rack, the fault diagnosis module is utilized to perform the test of the engine fault, simulate the fault phenomenon and complete the teaching task test of fault diagnosis. Meanwhile, joint debugging of the equipment is required to be carried out so as to verify the effectiveness and practicability of the proposed scheme.

The technical route of the teaching platform comprises the following steps:

(1) existing equipment of an Audi project and a common engine fault diagnosis rack in the market are investigated, and Audi school enterprise cooperative engine courses are analyzed;

(2) the method provides an ODIS-based Audi engine fault diagnosis teaching platform construction scheme, and the teaching platform construction scheme comprises the following steps:

A. designing and manufacturing an engine rack;

B. designing and manufacturing a relay circuit controlled by a single chip microcomputer;

C. setting software design based on LABVIEW fault;

D. designing and manufacturing a signal pickup box;

E. constructing a teaching display module scheme;

(3) testing and joint debugging software and hardware of the engine fault diagnosis teaching platform;

(4) and implementing teaching by using an engine fault diagnosis teaching platform.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an audi engine fault diagnosis teaching platform based on ODIS, includes teaching display module, ODIS module, engine and rack module, signal pickup module and fault setting module, its characterized in that: the teaching display module sends a signal to the fault setting module, the fault setting module sends the signal to the engine and the rack module, the engine and the rack module are in bidirectional connection with the ODIS module, the ODIS module sends the signal to the signal pickup module and the teaching display module through bidirectional connection, and the signal pickup module is in bidirectional connection with the fault setting module.

2. The ODIS-based audi engine fault diagnosis teaching platform of claim 1, wherein: the fault setting module comprises a LABVIEW-based fault setting module, a single-chip microcomputer control relay circuit module and an engine module, the LABVIEW-based fault setting module sends a signal to the single-chip microcomputer control relay circuit module, and the single-chip microcomputer control relay circuit module sends a signal to the engine module.

3. The ODIS-based audi engine fault diagnosis teaching platform of claim 1, wherein: the signal pickup module further comprises a signal pickup box, the signal pickup box comprises a sensor actuator harness plug, a break-make switch and an ECU socket, and the break-make switch is arranged between the sensor actuator harness plug and the ECU socket.

4. The ODIS-based audi engine fault diagnosis teaching platform of claim 1, wherein: the teaching display module comprises a projector, a real object exhibition stand, a large-size display, a desktop computer, a notebook computer and a multimedia central controller, wherein the multimedia central controller receives external data and then sends the external data to the projector, the real object exhibition stand, the large-size display, the desktop computer and the notebook computer.

5. The ODIS-based audi engine fault diagnosis teaching platform of claim 3, wherein: the on-off switch is provided with a plurality of switches, and the signal pickup box is also provided with a measuring hole corresponding to the on-off switch.