Effect of Ignition Timing on the Starting Characteristics for Linear Engine

2013 ◽  
Vol 724-725 ◽  
pp. 1413-1416
Author(s):  
Hui Cong Li ◽  
Zhe Wang ◽  
Zhao Lei Yin ◽  
Tong Zhang
Keyword(s):  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Ignition Timing ◽  
Transient Pressure ◽  
Piston Displacement ◽  
Linear Engine ◽  
Starting Process ◽  
Starting Characteristics ◽  
Injection Pulse

A starting experiment has been conducted to investigate the effect of ignition timing on the starting characteristics for linear engine designed by the research group independently. The fuel injection pulse and ignition timing are controlled by the electronic control unit (ECU) which is developed based on the piston displacement. The combustion characteristics of the engine in starting process are studied based on the cylinder pressure measured by the transient pressure sensor. The result shows that the best ignition timing for linear engine starting is 2.4mm~2.8mm when the fuel injection pulse is 5.4ms and this best region of ignition timing is also meet the requirement of the combustion in the next several cycles.

Research on Fitting Method for Flow Characteristics of Small Injection Pulse Width of Injector

2013 ◽  
Vol 448-453 ◽  
pp. 3421-3425
Author(s):  
Tie Zao Yang ◽  
Hai Bo Xue ◽  
Chang Sheng Wang ◽  
Xin Yang Wang ◽  
Lei Yuan
Keyword(s):  
Pulse Width ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Flow Characteristics ◽  
Control Unit ◽  
Electronic Control ◽  
Single Chip ◽  
Idle Speed ◽  
Injection Quantity ◽  
Injection Pulse

Due to the fact that it is generally difficult to accurately calculate the nonlinear section of flow characteristics curve of small injection pulse width of electronic control injector, it is impossible for electronic control unit (ECU) to accurately control fuel injection quantity when the small engine such as motorcycle is under a working condition of idle speed or small load. This paper introduces the principle and method to make a fitting for flow characteristics of nonlinear section in the developed software system in details. Take the electronic control injector of motorcycle as an example, the programming method combined with LabVIEW and MATLAB is utilized to make a fitting treatment for accurate fuel injection quantity obtained via measuring single-chip microcomputer through Smoothing Spline method, so as to obtain the flow characteristics of small injection pulse width and normal injection pulse width of electronic control injector of motorcycle.

scholarly journals A design of fuel control unit for eco vehicle engines

2021 ◽  
pp. 63-68
Author(s):  
Nguyen Trong Thuc
Keyword(s):  
Fuel Economy ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Control Circuit ◽  
Electronic Control ◽  
Ignition Timing ◽  
Sensors And Actuators

Nowadays, solution of fuel injection is the best way for design of fuel economy vehicle while mechanical improvement has almost reached its limit. This article shows result of the research and making the fuel injection electronic control unit (ECU) used for two annually contests named Honda EMC and Shell ECO-marathon. The control circuit is designed and coded with Arduino Mega, sensors and actuators equipped in popular cars. The circuit also allows users to change the fuel injection map and the ignition timing map to suit ECO vehicle, its necessary data help driver to have better seeing and adjusting during contest time. This permit contestant teams to modify base on their design and showed data can help contest process become more optimized and simply.

scholarly journals Perbedaan Unjuk Kerja Mesin Menggunakan Electronic Control Unit Tipe Racing dan Tipe Standar pada Sepeda Motor Automatic

2018 ◽  
Vol 3 (2) ◽  
pp. 138-143
Author(s):  
Rifki Mufti Rahman ◽  
Dwi Widjanarko ◽  
M. Burhan Rubai Wijaya
Keyword(s):  
Fuel Injection ◽  
Electronic Control Unit ◽  
Engine Performance ◽  
Control Unit ◽  
Maximum Power ◽  
Electronic Control ◽  
Performance Difference ◽  
Maximum Torque ◽  
Research Findings ◽  
Motorcycle Engine

The achievement of electronic-based motorcycle engine or Fuel Injection (FI) has better capability or power compared to conventional system vehicles. This research aims to determine the performance difference of using racing electronic control unit (ECU) compared to standard ECU of an automatic motorcycle. The experiment was carried out on a Honda Vario 125cc motorcycle manufactured in 2013. The research method is experimental research and uses descriptive statistic method. Research findings inform that the maximum torque of the standard ECU is 16.63 Nm at 3500 rpm, and the maximum power is 6.36 KW at 4500 rpm. The racing ECU (Iquteche) has a maximum torque of 22.42 Nm at 2500 rpm, and maximum power of 7.70 kW. The apparent increase in torque is around 36.58 % and in power is around 33.9 %. It can be concluded that the Iquteche ECU provides a more optimized engine performance on an automatic motorcycle.Prestasi mesin sepeda motor berbasis elektronik atau Fuel Injection (FI) memiliki kemampuan atau tenaga yang lebih baik dibandingkan dengan kendaraan sistem konvensional. Penelitian ini bertujuan untuk mengetahui perbedaan unjuk kerja mesin menggunakan Electronic Control Unit tipe racing dan tipe standar pada sepeda motor automatic. Objek penelitian dilakukan pada kendaraan Honda Vario 125cc tahun pembuatan 2013. Penelitian dilakukan dengan menggunkan metode experimental serta analisis data statistik deskriptif. Hasil penelitian menunjukkan bahwa diperoleh data torsi maksimal ECU standar sebesar 16.63 N.m pada putaran 3500 rpm, dan daya tertinggi sebesar 6.36 kW pada putaran 4500 rpm. Sedangkan hasil pengujian menggunakan ECU Iquteche diperoleh torsi tertingi sebesar 22.42 N.m pada putaran 2500 rpm, dan daya tertinggi sebesar 7.70 kW. Selain itu juga diketahui adanya peningkatan torsi mesin sebesar 36.58% dan peningkatan daya sebesar 33.99%, serta diketahui juga bahwa penggunaan ECU Iquteche lebih efektif untuk meningkatkan unjuk kerja mesin pada kendaraan jenis sepeda motor automatic.

scholarly journals By-products from thermal processing of rubber waste as fuel for the internal combustion piston engine

2020 ◽  
Vol 181 (2) ◽  
pp. 11-18
Author(s):  
Mariusz CHWIST ◽  
Michał GRUCA ◽  
Michał PYRC ◽  
Magdalena SZWAJA
Keyword(s):  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Internal Combustion ◽  
Injection System ◽  
Injection Timing ◽  
Piston Engine ◽  
Compression Ignition Engine ◽  
Exhaust Gases

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.

scholarly journals Embedded Control System for Recent Petrol Engine Control

2019 ◽  
Vol 9 (2S4) ◽  
pp. 508-511
Keyword(s):  
Coming Out ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Direct Injection ◽  
Control Unit ◽  
Petrol Engine ◽  
Injection System ◽  
Injection Timing ◽  
Exhaust Pipe ◽  
Electronic Control

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

scholarly journals Development of a Generic Dual Fuel ECU for Common Rail Diesel Engine Control

2021 ◽  
Author(s):  
◽  
Luke James Frogley
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Common Rail ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Operation

<p>Rising costs of diesel fuel has led to an increased interest in dual fuel diesel engine conversion, which can offset diesel consumption though the simultaneous combustion of a secondary gaseous fuel. This system offers benefits both environmentally and financially in an increasingly energy-conscious society. Dual fuel engine conversions have previously been fitted to mechanical injection systems, requiring physical modification of the fuel pump. The aim of this work is to develop a novel electronic dual fuel control system that may be installed on any modern diesel engine using common rail fuel injection with solenoid injector valves, eliminating the need for mechanical modification of the diesel fuel system.  The dual fuel electronic control unit developed replaces up to 90 percent of the diesel fuel required with cleaner-burning and cheaper compressed natural gas, providing the same power output with lower greenhouse gas emissions than pure diesel. The dual fuel system developed controls the flow of diesel, gas, air, and engine timing to ensure combustion is optimised to maintain a specific torque at a given speed and demand. During controlled experimental analysis, the dual fuel system exceeded the target substitution rate of 90 precent, with a peak diesel substitution achieved of 97 percent, whilst maintaining the same torque performance of the engine under diesel operation.</p>

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
Keyword(s):  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Injection Rate ◽  
Injection System ◽  
Fuel Injection System ◽  
Hydraulic Characteristics ◽  
Diesel Locomotive ◽  
Electronic Unit Pump ◽  
Fuel Injection Rate

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.

The Design and Development of a Temperature Testing System in an Electric Fuel Injection Engine

2012 ◽  
Vol 546-547 ◽  
pp. 811-816
Author(s):  
Qiang Li ◽  
Xu Xu Dong
Keyword(s):  
Data Processing ◽  
Temperature Sensor ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Test System ◽  
Acquisition System ◽  
Signal Acquisition ◽  
Processing Unit ◽  
Temperature Test

In order to achieve the best engine performance, electronic control unit needs to be provided a different fuel injection and ignition timing corresponding to different engine temperature while in other conditions the parameters is the same, so the temperature of the engine cylinder plays an important role. In this paper, the C8051F020 is used as the main control unit MCU and the data processing unit. The cylinder temperature signal is detected by thermistor temperature sensor and at the same time A/D conversion and data processing are completed. The acquisition temperature values are sent to LED display, while achieving ultra-high temperature alarm and ultra-low temperature alarm. This paper introduced the hardware design of temperature acquisition system, in this section this paper focuses on the choice of the temperature sensor, micro-controller selection and the design of temperature acquisition circuit and temperature display circuit. This paper introduces the software design of the temperature test system. Based on the understanding to C8051F020 MCU, with a micro-controller language this paper assembled a software program of temperature test system including the signal acquisition, A/D conversion and temperature display. This paper also designed a simple structure and processing the data speed of the temperature acquisition system.

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