I almost forgot today (it is 0.46 am now) is the due date of handing Technical project contract in. I drafted a contract:

Project Name: TOYOTA 4A-FE ENGINE ELECTRONIC COMPONENTS        DEMONSTRATION BOARD 

Project brief: 

1, Put all 4A-FE engine electronic parts on a designed demonstration board. 

2, Use a small DC motor to drive distributor rotor.

3, The speed of the DC motor is simulated to the camshaft speed which can be controlled   by a speed controller.

4, The speed controller gets input from TPS to synchronize accelerator and distributor.

5, Use spark plugs or spark plug testers to show ignition sparks.

6, Use a fuel tank with fuel pump to supply pressured fuel to rail with injectors.

7, The ECU gets all inputs like real engine and control 4 injectors to spray fuel to transparent plastic tubes which are connected back to fuel tank.

8, Make a vacuum system to simulate intake pressure. Make sure MAP sensor gives out synchronized signal to ECU.

9, ECT can be simulated by a POT or can be heated up by heat gun.

10, IAT can have the same design with ECT.

11, Knock sensor signal can be simulated by a hammer.

12, O2 sensor can be simulated by a function generator.

13, Idle control is combined with throttle body and can be tested by scope.

14, Cam and crank sensors are combined with distributor and can be tested by scope.

15, Use 12V battery to drive DC motor, fuel pump and power ECU /  injectors / ignition

16, Use a real cluster to show RPM, fuel gauge, engine temperature and engine warning light.

17, Use a key set to simulate ignition switch.

18, Diagnostic connector can be used with scan tool.

19, A designed diagnostic port with testing terminals can be easy to used with scope and function generator.

20, A professional user manual will be available.

Agreed Outcomes:

1, Safety and heavy duty design.

2, Easy to be moved around and design for education.

3, Simulate to real engine. Not only spark frequency and injection formation can be seen on board, they can be changed when accelerating, decelerating and idle. 

4, Easy to test with scope in diagnostic area. 

5, A professional user manual available. All sensors and actuators waveforms included.(Not copied waveforms)

6, Fault maker design. Can be tested with scan tool and engine light flashing codes.