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Electronic Diesel Control RUFO Project Fuel Injection Systems Palestine Polytechnic University An-Najah National University Eng. Fu’ad Daoud Eng. Fu’ad Daoud
Electronic Diesel Control
RUFO ProjectFuel Injection SystemsPalestine Polytechnic UniversityAn-Najah National University
Eng. Fu’ad DaoudEng. Fu’ad Daoud
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems05/01/23
Introduction
This presentation is prepared for educational purposes as a part of the RUFO project “Fuel Injection Systems.”
The aim of this project is to give learners easy access to the knowledge of modern fuel injection systems using “Blended E-Learning .”
This is a joint project between Palestine Polytechnic University and Al-Najah National University.
Project team: Leader - Dr. Momen Sughayyer, SME - Eng. Fuad Daoud, Eng. Ashraf Zoghayyer, and Eng. Mosa Zallom, MME - Mr. Zaid Sharaf, and Mr. Sameh Barbarwi.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems05/01/23
Content
ObjectivesTo explain the fundamentals of EDC.To show the fuel delivery system operation.To describe the function of the system components.To explain the function and operation of VE-EDC pump.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems05/01/23
Objectives
To explain the fundamentals of EDC.
To show the fuel delivery system operation.
To describe the function of the system components.
To explain the function and operation of VE-EDC pump.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems
Electronic Diesel Control (EDC)
System Overview The system composed from three main categories: Sensors,
Electronic control unit, and Actuators, sensors supply the control unit with information regarding the vehicle's operating condition; the control unit evaluates these information, and send signals to actuators in order to control the fuel quantity.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems
Bosch VE with EDC 1. Accelerator position (APP) sensor 2. Battery 3. Crankshaft position (CKP) sensor 4. EDC control unit 5. Engine coolant temperature (ECT) sensor 6. Exhaust gas recirculation (EGR) solenoid 7. Fuel filter 8. Fuel injection pump 9. Fuel injector (with needle lift sensor) 10. Fuel tank 11. Glow plug relay 12. Glow plug 13. Glow plug warning lamp 14. Ignition switch 15. Malfunction indicator lamp (MIL) 16. Mass air flow (MAF) sensor 17. Vehicle speed sensor (VSS)
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems1 (Accelerator position (APP) sensor
The APP sensor can comprise of a potentiometer, signals from the APP sensor are used by the ECM to determine the exact accelerator position.
1. Potentiometer and idle/full load switch 2. Spring 3. Shaft
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems2 (Battery
Source of energy to the system
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems
3 (Crankshaft position (CKP) sensor
This sensor contains a permanent magnet partly enclosed in a soft iron core and partly in a field winding; the tip of the sensor is positioned close to the flywheel ring gear, as the teeth or pins of the trigger wheel pass the sensor the magnetic field changes, inducing a voltage signal which is sent to the engine control module (ECM).
1. Soft iron core 2. Field winding 3. Permanent magnet 4. Flywheel ring gear 5. TDC pin
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems4 (EDC control unit
The EDC control unit assumes the following tasks:- Regulate Injection quantity by sending control signals to the quantity adjuster. The EDC control unit calculates the commencement of injection depending on
the influencing factors such as, engine speed sensor, coolant temperature sensor, needle lift sensor …etc, and issues the corresponding output command to the commencement of injection valve in the injection pump.
Regulate charge pressure and exhaust gas recirculation. Controlling the glow plug system and the auxiliary heater. Controlling the cruise control system.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems
5 (Engine coolant temperature (ECT) sensor
The engine coolant (ECT) sensor probe is immersed in coolant and changes its resistance in proportion to engine coolant temperature changes. the sensor incorporates a negative temperature coefficient (NTC) resistor, which decreases in resistance as the temperature rises.
1. Electrical connections 2. Housing 3. NTC resistor
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems
6 (Exhaust gas recirculation (EGR) solenoid
To reduce the oxides of nitrogen emitted by the exhaust, a proportion of the exhaust gas can be returned to the inlet, manifold when operating conditions allow, this is done by EGR.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems7 (Fuel filter
It is used to eliminate water and dirty from diesel
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems8 (Fuel injection pump
EDC pump, is used to pump the fuel throughout the system
1. Potentiometer for control-collar position 2. Quantity adjuster 3. Electric cut-off valve 4. Plunger 5. Solenoid valve for start of injection 6. Control Collar 7. Timing device
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems
9 (Fuel injector (with needle lift sensor)
It has an integral inductive sensor, at the commencement of injection the magnetic setting pin moves upwards and induces an alternating current into the sensor windings, this information, together with signals from the crankshaft position sensor, is used by the engine control module (ECM) to measure the injection timing.
1. Setting pin 2. Sensor winding 3. Pressure pin 4. Electrical connector
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems10 .Fuel tank
It is used to store Diesel in it.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems11 .Glow plug relay
It is used to supply the current to the glow plug
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems
12 .Glow plug
Glow plugs are used to raise the temperature in the combustion chambers to enable the engine to be started in low temperatures. The glow plugs can also be used during cold running to reduce harmful exhaust emissions, blue smoke and knocking.
1. Terminal 2. Insulator 3. Casing 4. Element seal 5. Heater and control coils 6. Glow tube 7. Powder
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems13 .Glow plug warning lamp
This is just to tell you that the glow plugs are heating up in readiness for a cold start. You should wait for the light to extinguish before starting the engine.
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems14 .Ignition switch
Connect electrical circuits in the vehicle
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems15.Malfunction indicator lamp (MIL)
The MIL has illuminated during driving this means there is a malfunction trouble code stored in the vehicles computer
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems16 .Mass air flow (MAF) sensor
It is fitted between the air filter and intake manifold, the task of the air-mass flow meter is to measure the fresh air mass supplied to the engine, this fresh air mass is used to calculate the exhaust gas recirculation rate and the permissible injection quantity
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RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems17 .Vehicle speed sensor (VSS)
Measure the speed of the vehicle and send information to ECU.
Speedometer Power train Control Module (PCM)
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