Research on Simulation for the Electronic Unit Pump Fuel Injection System of HXn5 Diesel Locomotive

2013 ◽  
Vol 645 ◽  
pp. 445-449 ◽  
Author(s):  
Ming Hai Li ◽  
Zhe Zhou ◽  
Xian Zhe Jia

Parameters are obtained by mapping the entity structural electronic control unit pump injection system of HXn5 diesel locomotive introduced from USA. A simulation model was built up with GT-Fuel, which can well reflect the electromagnetic and hydraulic characteristics of the fuel injection system, as well as the fuel injection rate and fuel quantity. Compares with locally high-power diesel, the calculation curves show its superiority, which will establish a foundation for optimization and improvement of local fuel injection system.

2012 ◽  
Vol 229-231 ◽  
pp. 968-972 ◽  
Author(s):  
Mohd Taufiq Muslim ◽  
Hazlina Selamat ◽  
Ahmad Jais Alimin ◽  
Mohd Faisal Hushim

Most motorcycles in developing countries use carburetor systems as the fuel delivery method especially for models with the cubic capacity of less than 125cc. However, small gasoline fuelled engines operating using carburetor system suffer from low operating efficiency, waste of fuel and produce higher level of hazardous emissions to the environment. In this study, an electronic control unit (ECU) is designed and simulated for a retrofit fuel injection (FIS) system. The ECU is targeted to have a simple design, reliable and offers all of the necessary functions of the modern ECU. The simulation results shows that the designed ECU can determine the injection period as close to the proposed value and can drive the injector efficiently based on the generated PWM pulse.


2020 ◽  
Vol 181 (2) ◽  
pp. 11-18
Author(s):  
Mariusz CHWIST ◽  
Michał GRUCA ◽  
Michał PYRC ◽  
Magdalena SZWAJA

The article presents results of investigation on the combustion of a mixture of oil from pyrolysis of tires and basic fuel in an internal combustion reciprocating piston engine. The tested fuel consisted of: diesel oil and oil from pyrolysis of tires at amount of 10% by volume. The tests were carried out on a single-cylinder naturally aspirated compression-ignition engine. The engine is equipped with a common rail fuel injection system and an electronic control unit that allows changing injection timing. A comparative analysis of pressure-volume charts for the reference fuel, which was diesel, and for a mixture of diesel with the addition of 10% oil from tire pyrolysis was carried out during the study. Injector characteristics for the reference fuel and the mixture were determined. Engine efficiency for both fuels was determined. Unrepeatability of the engine work cycles for the diesel fuel and the tested mixture was calculated. Finally, the share of toxic exhaust components in exhaust gases was analyzed. It was found that pyrolisys oil from tires can be used as additive to regular diesel fuel at amount up to 10%, however, toxic exhaust gases emission was increased.


In the current scenario of automotive industries, it is much challenging for the research and developers to develop updated engines/vehicles to satisfy the proposed demands of environmental policy levels. To achieve the expected demands of emissions coming out from an engine exhaust not only with the help of converters in the exhaust pipe line but also the emissions should be controlled during burning of fuel with air in the ignition chamber itself. The controlled combustion of fuel and air requires not only the control fuel injection timing with duration of injection and tune up of the complete fuel injection system with hardware components of ECU but also requires the control of ignition timing. The complete electronic control for petrol engine with direct injection unit is required to communicate between PC and an engine. CAN with SPI interface is used to communicate the electronic control unit with engine


2019 ◽  
Vol 18 (3-2) ◽  
pp. 7-12
Author(s):  
Ahmad Faiz Ab Rahman ◽  
Hazlina Selamat ◽  
Ahmad Jais Alimin ◽  
Mohd Taufiq Muslim ◽  
Muhammad Mazizan Msduki ◽  
...  

The advancement in embedded systems, which includes the mass deployment of internet-connected electronics, allows the concept of Internet of Things (IoT), to become a reality. This paper discusses one example of how an internet-connected embedded system is utilized in an automotive system. An Electronic Control Unit (ECU), which functions as a control unit in a fuel injection system, are equipped with Wi-Fi capability and installed on 110cc motorcycle. The ECU is connected to multiple sensors that is used by the ECU as part of control system, as well as giving raw data in real time to the server by using Wi-Fi as the communication medium. The server will accumulate data transmitted from ECU by using MQTT protocol, chosen due to its minimal data profile. The data can be visualized through web portal, or opened by any other web-enabled devices. The data collected may also be used later for any other purposes, such as On-Board Diagnostics (OBD) system, etc.


2012 ◽  
Vol 482-484 ◽  
pp. 1943-1946
Author(s):  
Li Dan Chen ◽  
Huang Xiang Shan

Through the discussion of main shortages of the high-speed electromagnetic valve used in electronic fuel injection system, the author introduced a new design thought of fuel injector based on 2D technology. Axial displacement of controlling valve was used to control the volume of gushing oil, while radial revolution of spool valve was used to change the time of injection. Additionally, mathematic modeling and MATLAB simulating indicated that, the injector designed based on 2D technology acquired the advantages of quick response and also realized the ideal shape of fuel injection rate.


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