ECU TESTING TOOL

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ECU TESTING TOOL

The Examine-Analyzing Equipment of Automobile’ s EECS and ECU

Equipment Description

ECU TESTING TOOL , testing-analyzing equipment of automobile’ s EECS and ECU, is specially designed for engineers who repair automobile’ s EECS and ECU. It is a handset and also can be used at worktable. It includes electric-control analyzing equipment and signal generator. According to the common characteristic if automobile’ s EECS, the equipment can simulate 8 kinds of signals to meet the demands of diagnosing work. Moreover, the equipment can simulate 3 kinds of independent, changeable signal combination at the same time. The equipment is designed on the basis of electric-control principle and repairing regularity, so it can also be a useful teaching tool to grasp Automobile-Electric technique in automobile repairing skill training.

The function of simulating sensor signal:
1. 58+ 2 signal ( 58Hz-900Hz) , simulate crankshaft position signal.Have 2 shifts: 5Vpp, 10Vpp.
2. Sin wave signal ( 20Hz-900Hz) , simulate car speed, gear speed, have 2 shifts: 5Vpp, 10Vpp.
3. Rectangle wave ( 10Hz-10KHz) , simulate various kinds ofdigital signals, have2 shifts: 5Vpp, 10Vpp.
4. One way changeable resistance signal( 50© -10K© ) , simulate cool water temperature, loopy electric potential utensil knob( 12) precisely adjusts tooutput
5. Oneway changeable voltage signal( 0-10V) , simulate various kinds of voltage signals; loopy electric potential utensil knob ( 12) precisely adjusts to output.
6. PWM signal ( 5Hz— 200Hz; 5% — 90% ) , frequency, DUTY can be adjustedindependently. Puls and quite the contrary output.( simulate Cylinder Identification signal, ignition module input signal.
7. PWM drive signal ( 5Hz— 200Hz.5% — 90% , 20A) driveinjector, ignition coil, EGR solenoid, IAC MOTOR, etc.

The function of measuring:
1. Examine external injection pulse width. ( 0.00-99.99ms)
2. Examine external voltage ( 0-10V) .
3. Examine external signal’ s frequency ( 0-9999Hz) .
4. Examine external signal’ s DUTY ( 5% -100% ) .
5. Examine external impulse with flashing LED.

The function of active testing:
1. When simulating signals like voltage, resistance, frequency, you can observe injection pulse width simultaneously.
2. You can examine the injection pulse width of an engine’ s starting status.
3. By means of observing injection pulse width ( ms) , you can do these tests to the Electronic Fuel Injection engine:
Add rich mixture at cold starting;
Add rich mixture at running;
Add rich mixture at Idle;
Adjust AFS;
Feed back capability test of Oxygen signal under closed loop status;
Sever Fuel test; MAP test; etc.
4. You can test the battery voltage of the engine’ s stating status.
5. When observing signal’ s frequency and pulse width, you can examine signal’ s voltage and DUTY at the same time.
6. The blue LED can do the induce test of ignition high tension.

Function

1, Measure Pulse Width:
2. Measure Signal’ s Frequency ( Hz)
3. Measure Engine’ s Injection Pulse Width ( ms)
4. Measure the Voltage:
5. Measure the Digital Signal’ s DUTY
6. External Signal’ s LED Test.
7. Simulate Output the Voltage Signal and Resistance Signal.
8. Simulate Output the Frequency Signal.
9. Simulate output the PWM signal.
10. Simulate Output the PWM Drive Signal.
11. The Active Test of the Equipment.

ABBREVIATIONS IN THIS MANUAL:
EECS: Engine Electronic Control System
ECU: Electronic Control Unit
EGR: Exhaust Gas Recirculation
PWM: Pulse Width Modulated
AFS: Air Flow Sensor
A/ F: Air-Fuel Ratio
IAC: Idle Air Control

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