A. Product requirements

Based on the in-cylinder direct-injection electronically controlled gasoline engine, the equipment can perform practical operations on the engine in starting, accelerating, decelerating and other working conditions, and truly demonstrate the composition and working process of the electronically controlled gasoline engine.

B. Functional requirements
Volkswagen EA2111.4TSI direct injection gasoline engine
1. A real and operational direct-injection electronically controlled gasoline engine fully demonstrates the composition and working process of the in-cylinder direct injection electronically controlled gasoline engine.

2. The measurement panel of the training platform is painted with a color inkjet circuit diagram, which is made of a 5mm thick high-strength transparent acrylic sheet mirrored on the back. It is resistant to large temperature differences, wear-resistant, moisture-proof, corrosion-resistant, not easy to deform, and has a long life. Bright colors, not easy to fade and other characteristics. The trainees can visually compare the circuit diagram and the physical object of the in-cylinder direct-injection electronically controlled gasoline engine to understand and analyze the working principle of the control system.

3. The panel of the training platform is equipped with automobile instruments, fuel pressure gauges, and vacuum pressure gauges, which can display real-time changes in parameters such as engine speed, fuel injection pressure, and intake manifold pressure.

4. The panel of the training platform is equipped with detection terminals, which can directly detect the electrical signals of various sensors, actuators, and engine control unit pins, such as resistance, voltage, current, and frequency signals.

5. The training platform is equipped with a diagnostic socket, which can be connected to a dedicated or general-purpose car decoder to perform ECU code query, read fault codes, clear fault codes, read data streams, perform component tests, and parameter settings for the engine electronic control system Self-diagnosis functions such as setting and waveform analysis.

6. The training platform is equipped with a throttle control device, which can facilitate the acceleration and deceleration of the engine.

7. The training platform is equipped with main power switch, water tank protective cover, flywheel protective cover and other installation protection devices.

8. The training platform is built with international standard aluminum alloy profiles. It has the characteristics of light weight, high strength, corrosion resistance, and long life. It does not need to go through the spraying process, is more environmentally friendly, and looks more beautiful and high-end. The bench has self-locking casters. The device is mobile, safe, reliable, sturdy and durable.

*9. Multimedia intelligent fault setting and assessment system
1) The system consists of three parts: a tablet computer equipped with an Android system (Android), a Bluetooth main control board, and a fault setter control board. Teachers can remotely start and stop teaching equipment through the Bluetooth wireless setting faults that come with the tablet computer. One tablet computer can control multiple teaching equipment to facilitate teaching and lectures.

2) The title bar of the assessment fault setting interface displays the name of the teaching equipment in large fonts, and the name of the fault point is displayed on the fault button in Chinese, which is intuitive and clear. The user can edit and modify the device name and the name of the fault point arbitrarily according to different devices. The operation interface is humanized and the man-machine dialogue is friendly.

3) The Bluetooth of each device is equipped with a different number, which can effectively distinguish multiple devices, and is equipped with Bluetooth connection and Bluetooth disconnection options, which can connect and disconnect the Bluetooth of different devices in one interface, so that teachers can easily control The ignition start and fault settings of all teaching equipment in the classroom are simple and flexible to operate, which effectively improves teaching efficiency.

4) Three types of faults: open circuit, virtual connection, and short circuit can be set. Single fault or multiple faults can be set. Up to 126 faults can be set; there are all settings and all faults clearing functions, which can be used for practical training of students connecting lines operating.

5) There is a teaching mode function. Teachers can save supporting teaching courseware, teaching videos, original vehicle materials, equipment manuals, training manuals and other materials in the teaching mode folder, and can wirelessly connect to the projector, LCD TV, and teaching integrated machine And so on multimedia teaching.

6) There is a login interface to distinguish the authority of teachers and students;

7) The software is equipped with an assessment function, which can be assessed by a single machine or by multiple people connected to the network Wifi. The teacher and student interface are separated. The teacher can enter by entering the "user name" and "login password". The login password can be changed at will; after the teacher sets the test questions and test time in the "assessment fault setting" interface, send the test questions and enter the assessment mode. Teachers can ask questions at will. After setting the fault, the button on the screen will turn from green to red, and the relay board will act at the same time, and the device will malfunction.

8) The student's grade, class, name, exam number and exam results are recorded in the "student information management" database. Teachers can view student information and exam results at any time, and can be converted into Excel files and exported to software and SD In the card, it is convenient for teachers to manage student information and grades.

9) After starting the server in the "Server Management" interface, you can form a local area network with the student client via Wifi. After the teacher sets the test questions to be sent, the student client interface will display the name of the test device, the names of all fault points of the device, the category of test questions, and the number of test questions. And the remaining time to answer the question. After the student detects the fault on the device, selects the corresponding fault button and submits the test paper (or the test time is over), and the test result will be seen, and the software will automatically generate the score report.

10) The software is equipped with a function to limit the number of failures that students can choose, and no more than the number of failures is set to prevent students from random selection.

11) The number of failures of the standard relay control board is 20 open circuits/virtual connections + 6 short circuits. The capacity of each faulty channel is DC10A.

12) A short-circuit fault is a short-circuit of the signal to the ground, and self-recovery insurance is connected in series between the lines to prevent the computer from being damaged by the wrong line connection.

13) RS485 field industrial bus communication is adopted between the Bluetooth main control board and the relay control board, with long communication distance, stable signal and anti-interference.

14) It can be used in conjunction with the touch screen intelligent fault setter, wireless and wired operation modes, flexible and convenient. C

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