Electronic Diesel Control RUFO Project Fuel Injection Systems Palestine Polytechnic University...

Electronic Diesel Control

RUFO Project

Fuel Injection SystemsPalestine Polytechnic University

An-Najah National University

Eng. Fu’ad DaoudEng. Fu’ad Daoud

2

RUFO - Fuel Injection SystemsRUFO - Fuel Injection Systems04/19/23

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.

3


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.

4


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.

5

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.

04/19/23

6


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)

04/19/23

7


1 (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

04/19/23

Previous page

8


2 (Battery

Source of energy to the system

04/19/23

Previous page

9


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

04/19/23

Previous page

10


4 (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.

04/19/23

Previous page

11


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

04/19/23

Previous page

12


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.

04/19/23

Previous page

13


7 (Fuel filter

It is used to eliminate water and dirty from diesel

04/19/23

Previous page

14


8 (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

04/19/23

Previous page

15


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

04/19/23

Previous page

16


10 .Fuel tank

It is used to store Diesel in it.

04/19/23

Previous page

17


11 .Glow plug relay

It is used to supply the current to the glow plug

04/19/23

Previous page

18


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

04/19/23

Previous page

19


13 .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.

04/19/23

Previous page

20


14 .Ignition switch

Connect electrical circuits in the vehicle

04/19/23

Previous page

21


15.Malfunction indicator lamp (MIL)

The MIL has illuminated during driving this means there is a malfunction trouble code stored in the vehicles computer

04/19/23

Previous page

22


16 .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

04/19/23

Previous page

23


17 .Vehicle speed sensor (VSS)

Measure the speed of the vehicle and send information to ECU.

Speedometer Power train Control Module (PCM)

04/19/23

Previous page

Electronic Diesel Control RUFO Project Fuel Injection Systems Palestine Polytechnic University...

Documents

Transcript of Electronic Diesel Control RUFO Project Fuel Injection Systems Palestine Polytechnic University...