Presentation on theme: "Electronic Diesel Control"— Presentation transcript:
1 Electronic Diesel Control RUFO ProjectFuel Injection SystemsPalestine Polytechnic UniversityAn-Najah National UniversityTheoretical PartEng. Fu’ad Daoud
2 4/19/2017IntroductionThis 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 To explain the fundamentals of EDC. 4/19/20174/19/2017ContentObjectivesTo 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 To explain the fundamentals of EDC. 4/19/2017ObjectivesTo 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 Electronic Diesel Control (EDC) 4/19/20174/19/2017Electronic Diesel Control (EDC)System OverviewThe 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.
6 1. Accelerator position (APP) sensor 2. Battery 4/19/2017Bosch VE with EDC1. Accelerator position (APP) sensor2. Battery3. Crankshaft position (CKP) sensor4. EDC control unit5. Engine coolant temperature (ECT) sensor6. Exhaust gas recirculation (EGR) solenoid7. Fuel filter8. Fuel injection pump9. Fuel injector (with needle lift sensor)10. Fuel tank11. Glow plug relay12. Glow plug13. Glow plug warning lamp14. Ignition switch15. Malfunction indicator lamp (MIL)16. Mass air flow (MAF) sensor17. Vehicle speed sensor (VSS)
7 1) Accelerator position (APP) sensor 4/19/20171) Accelerator position (APP) sensorThe 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 switch2. Spring3. ShaftPrevious page
8 Source of energy to the system 4/19/20172) BatterySource of energy to the systemPrevious page
9 3) Crankshaft position (CKP) sensor 4/19/20173) Crankshaft position (CKP) sensorThis 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 core2. Field winding3. Permanent magnet4. Flywheel ring gear5. TDC pinPrevious page
10 The EDC control unit assumes the following tasks:- 4/19/20174) EDC control unitThe 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.Previous page
11 5) Engine coolant temperature (ECT) sensor 4/19/20175) Engine coolant temperature (ECT) sensorThe 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 connections2. Housing3. NTC resistorPrevious page
12 6) Exhaust gas recirculation (EGR) solenoid 4/19/20176) Exhaust gas recirculation (EGR) solenoidTo 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.Previous page
13 It is used to eliminate water and dirty from diesel 4/19/20177) Fuel filterIt is used to eliminate water and dirty from dieselPrevious page
14 EDC pump, is used to pump the fuel throughout the system 4/19/20178) Fuel injection pumpEDC pump, is used to pump the fuel throughout the system1. Potentiometer forcontrol-collar position2. Quantity adjuster3. Electric cut-off valve4. Plunger5. Solenoid valvefor start of injection6. Control Collar7. Timing devicePrevious page
15 9) Fuel injector (with needle lift sensor) 4/19/20179) 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 pin2. Sensor winding3. Pressure pin4. Electrical connectorPrevious page
16 It is used to store Diesel in it. 4/19/201710. Fuel tankIt is used to store Diesel in it.Previous page
17 It is used to supply the current to the glow plug 4/19/201711. Glow plug relayIt is used to supply the current to the glow plugPrevious page
18 5. Heater and control coils 6. Glow tube 7. Powder 4/19/201712. Glow plugGlow 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. Terminal2. Insulator3. Casing4. Element seal5. Heater and control coils6. Glow tube7. PowderPrevious page
19 4/19/201713. Glow plug warning lampThis 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.Previous page
20 Connect electrical circuits in the vehicle 4/19/201714. Ignition switchConnect electrical circuits in the vehiclePrevious page
21 15.Malfunction indicator lamp (MIL) 4/19/201715.Malfunction indicator lamp (MIL)The MIL has illuminated during driving this means there is a malfunction trouble code stored in the vehicles computerPrevious page
22 16. Mass air flow (MAF) sensor 4/19/201716. Mass air flow (MAF) sensorIt 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 quantityPrevious page
23 17. Vehicle speed sensor (VSS) 4/19/201717. Vehicle speed sensor (VSS)Measure the speed of the vehicle and send information to ECU.SpeedometerPower train Control Module (PCM)Previous page