Engine failure diagnosis and exclusion assessment training device

The device is composed of two parts: electronically controlled gasoline engine assembly and fixed table frames and running detection control panel frames.

The engine can perform the practice of normal operating conditions such as starting, acceleration, and deceleration, and truly display the structure and work process of electronic control gasoline engines.

Applicable to the teaching needs of automotive engines and m--ntenance tr--ning for middle and higher vocational and technical colleges, ordinary education colleges and tr--ning institutions.

 

two. Features

1. The real -operated electronic control gasoline engine fully shows the structure and working process of the electronic control gasoline engine. The engine can perform practical operations such as starting, accelerating, and deceleration.

2. The tr--ning table consists of two parts: the engine assembly and the fixed table frame and the operation of the operation detection control panel.

3. The tr--ning table panel is p--nted with color UV tablet inkjet circuit diagrams. Students can intuitively control the circuit diagram and the actual engine of the engine, and understand and analyze the working principle of the control system; The high -grade aluminum -plastic plate is sprayed with primer p--nt on the surface; the panel prints a color system circuit diagram that will never fade.

4. The tr--ning terminal is installed on the panel, and the electrical signals that can detect each sensor, actuator, and engine control unit pipe foot can be detected directly on the panel, such as resistors, voltage, current, frequency signals, etc.

5. The device detection panel is equipped with a 20cm steel table on the front base in front, which is convenient for placing data and detecting instruments.

6. The tr--ning countertop is installed with car instrument, fuel pressure gauge, and vacuum pressure gauge, which can display changes in the engine speed in real time;

7. There is a diagnostic seat installation of the tr--ning desk, which can be connected to a dedicated or universal car decoder to read the engine electrical control system to read the fault code, clear the fault code, and the data flow.

8. The tr--ning desk is equipped with a total power switch and protection device.

1. Experimental goals

1) Meet the simulation experiment of mechanical speed fluctuation test. Adjust the speed fluctuations of speed observation machinery, solve the uneven coefficient of the system operation, and draw the measured and simulation contrast curve.

2) Meet the mechanical speed fluctuation adjustment experiment. Change the size of the flywheel and the size of the work resistance, observe the changes in mechanical speed fluctuations, and compare analysis with the theoretical calculation results, then master the adjustment method and design indicators of periodic speed fluctuations, master the flywheel design method and calculate the turning inertia of the flywheel.

2. Performance characteristics:

1) Equipped with flywheels with large and small flywheels, which can compare the speed regulation effect of different flywheel quality.

2) Equipped with springs with different rigidity as the working resistance of slider, testing the working resistance and speed fluctuation of mechanical operation in different load states.

3) The speed of the working mechanical system can be adjusted to test the speed fluctuations at different speeds and the speed adjustment effect at different speeds.

4) Make sure that each motion component of the experimental table has a good cooperation gap and has a long service life.

3. M--n technical parameters:

Big flywheel 1 φ175 × 28;

Little flywheel 1 φ145 × 25;

Base circle radius R = 40mm push rod lift H = 15;

DC speed adjustment motor 1 voltage 220V; n = 125W speed n = 1500r/min;

2 angle shift sensors;

Output voltage/pulse number: 5V/1000P, 5V/360P;

1 software disc;

Dimensions: 500x600x460mm