scholarly journals Improving CO2 emission assessment of diesel-based powertrains in dynamic driving cycles by data fusion techniques

2020 ◽  
pp. 095440702094947
Author(s):  
Carlos Guardiola ◽  
Benjamín Pla ◽  
Pau Bares ◽  
Edward Chappell ◽  
Richard Burke
Keyword(s):  
Kalman Filter ◽  
High Efficiency ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Combustion Process ◽  
Control Unit ◽  
Diesel Oxidation Catalyst ◽  
Oxidation Catalyst ◽  
Electronic Control ◽  
Driving Cycles

This article proposes a method based on the Kalman filter to improve the accuracy of the CO2 measurement in driving cycles such as worldwide harmonized light vehicles test cycles or real driving cycles which are inherently subject to a loss in accuracy due to the dynamic limitations of the CO2 analysers. The information from the analyser is combined with the electronic control unit estimation of the fuel injection. The characteristics of diesel engines and, in particular, the high efficiency of the combustion process and the diesel oxidation catalyst allows to compute the CO2 emissions from the fuel consumption estimation of the electronic control unit by applying the carbon balance method assuming negligible HC and CO emissions. Then, the assessment of the CO2 analyser response time and accuracy allows to pose an estimation problem that can be solved by a Kalman filter. The application of the method to different driving cycles shows that analyser dynamic limitations may lead to an overestimation of the CO2 figures that can reach 4% in highly dynamic tests such as the worldwide harmonized light vehicles test cycles. The technique thus has further potential application to replicating real driving cycles on the chassis dynamometer for real driving emission testing.

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 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

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 Automotive Real-Time Data Acquisition Using Wi-Fi Connected Embedded System

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 ◽  
...  
Keyword(s):  
Embedded System ◽  
Real Time ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Injection System ◽  
Electronic Control ◽  
Time Data ◽  
Multiple Sensors ◽  
Minimal Data

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.

Electronic Control Unit Design for a Retrofit Fuel Injection System of a 4-Stroke 1-Cylinder Small Engine

2012 ◽  
Vol 229-231 ◽  
pp. 968-972 ◽  
Author(s):  
Mohd Taufiq Muslim ◽  
Hazlina Selamat ◽  
Ahmad Jais Alimin ◽  
Mohd Faisal Hushim
Keyword(s):  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Injection System ◽  
Operating Efficiency ◽  
Fuel Injection System ◽  
Electronic Control ◽  
Delivery Method ◽  
Fuel Delivery ◽  
Unit Design

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.

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.

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