· Put all 4A-FE engine electronic parts on a designed demonstration board.
· Use a small DC motor to drive distributor rotor.
· The speed of the DC motor is simulated to the camshaft speed which can be controlled by a speed controller.
· The speed controller gets input from TPS to synchronize accelerator and distributor.
· Use spark plugs or spark plug testers to show ignition sparks.
· Use a fuel tank with fuel pump to supply pressured fuel or special liquid to rail with injectors.
· ECU gets all inputs like real engine and controls 4 injectors to spray fuel to transparent plastic tubes which are connected back to fuel tank.
· Map sensor may not be simulated.
· ECT can be simulated by a POT or can be heated up by heat gun.
· IAT can have the same design with ECT.
· Knock sensor signal can be simulated by a hammer.
· O2 sensor may not be simulated.
· Idle air control valve may not be simulated.
· Cam and crank sensors are combined with distributor and can be tested by scope.
· Use 12V battery to drive DC motor, fuel pump and power ECU / injectors / ignition
· Use a key set to simulate ignition switch.
· Diagnostic connector can be used with scan tool.
· A designed diagnostic port with diagrammed testing terminals can be easy to use with scope.
· A user manual will be available. All sensors and actuators waveforms included.
· Easy to be moved around and design for education.
· 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.
