scholarly journals Designing a Prototype LPG Injection Electronic Control Unit for a Carburetted Gasoline Engine

2015 ◽  
Vol 20 (2) ◽  
pp. 141 ◽  
Author(s):  
Barış ERKUŞ ◽  
M. İhsan KARAMANGİL ◽  
Ali SÜRMEN
Keyword(s):  
Gasoline Engine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control

Research on Variable Cylinders of the Tandem 4-Cylinder Gasoline Engine for Fuel Economy

2008 ◽  
Vol 20 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Kouki Yamaji ◽  
◽  
Hirokazu Suzuki ◽  
Keyword(s):  
Fuel Consumption ◽  
Fuel Economy ◽  
Gasoline Engine ◽  
Combustion Engine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Engine Fuel ◽  
Electronic Control ◽  
The Difference ◽  
Predetermined Time

With progress in internal combustion engine fuel economy, variable cylinder systems have attracted attention. We measured fuel consumption in cylinder cutoff by stopping the injector alone, collected data changing the location and number of cutoff cylinders and when varying the cutoff cylinder, and compared the difference in fuel cost reduction. A transistor is inserted serially into the injector control circuit of the electronic control unit (ECU). By controlling the transistor via microcomputer, the injector is turned on or off independently from ECU control in obtain cylinder cutoff. The amount of fuel consumption is measured using enhancement mode of a failure diagnostic device based on the OBD II standard to collect injection time and rotational speed of the injector for a predetermined time and calculated based on this data. We confirmed that by stopping the injector alone, fuel consumption was reduced 6 to 22% and is reduced when the cutoff cylinder is varied.

scholarly journals A Recent Electronic Control Circuit to a Throttle Device

Electronics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 191 ◽  
Author(s):  
Leonardo Acho ◽  
Gisela Pujol-Vázquez ◽  
José Gibergans-Báguena
Keyword(s):  
Gasoline Engine ◽  
Control Strategies ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Control Circuit ◽  
Electronic Control ◽  
Control Scheme ◽  
Control Objective ◽  
Electronic Controller ◽  
Throttle Device

The main objective of this paper was to conceive a new electronic control circuit to the throttle device. The throttle mechanical actuator is the most important part in an automotive gasoline engine. Among the different control strategies recently reported, an easy to implement control scheme is an open research topic in the analog electronic engineering field. Hence, we propose using the nonlinear dwell switching control theory for an analog electronic control unit, to manipulate an automotive throttle plate. Due to the switching mechanism commuting between a stable and an unstable controllers, the resultant closed-loop system is robust enough to the control objective. This fact is experimentally evidenced. The proposed electronic controller uses operational amplifiers along with an Arduino unit. This unit is just employed to generate the related switching signal that can be replaced by using, for instance, the timer IC555. Thus, this study is a contribution on design and realization of an electronic control circuit to the throttle device.

Critical review towards thermal management systems of lithium-ion batteries in electric vehicle with its electronic control unit and assessment tools

2021 ◽  
pp. 095440702098286
Author(s):  
C Kannan ◽  
R Vignesh ◽  
C Karthick ◽  
B Ashok
Keyword(s):  
Lithium Ion Batteries ◽  
Thermal Management ◽  
Electronic Control Unit ◽  
Lithium Ion ◽  
Control Unit ◽  
Assessment Tools ◽  
Electronic Control ◽  
Battery Thermal Management ◽  
Thermal Management System ◽  
Battery Thermal Management System

Lithium-ion batteries are facing difficulties in an aspect of protection towards battery thermal safety issues which leads to performance degradation or thermal runaway. To negate these issues an effective battery thermal management system is absolute pre-requisite to safeguard the lithium-ion batteries. In this context to support the future endeavours and to improvise battery thermal management system (BTMS) design and its operation the article reveals on three aspects through the analysis of scientific literatures. First, this paper collates the present research progress and status of various battery management strategies employed to lithium-ion batteries. Further, to promote stable and efficient BTMS operation as an initiation the extensive attention is paid towards roles of BTMS electronic control unit and also presented the essential functionality need to consider for designing best BTMS control strategy. Finally, elucidates the various unconventional assessment tools can be employed to recognize the suitable thermal management technique and also for establish optimum BTMS operation based on requirements. From the experience of this article additionally delivers some of the research gaps identified and the essential areas need to focus for the development of superior lithium-ion BTMS technology. All the contents reveal in this article will hopefully assist to the design commercially suitable effective BTMS technology especially for electro-mobility application.

scholarly journals Electronic control unit development and emissions evaluation for hydrogen–diesel dual-fuel engines

2018 ◽  
Vol 10 (12) ◽  
pp. 168781401881407
Author(s):  
Yasin Karagöz ◽  
Majid Mohammad Sadeghi
Keyword(s):  
Diesel Engines ◽  
Working Condition ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Dual Fuel ◽  
Hydrogen Energy ◽  
Compression Ignition ◽  
Electronic Control ◽  
Fuel System ◽  
Compression Ignition Engines

In this study, it was aimed to operate today’s compression ignition engines easily in dual-fuel mode with a developed electronic control unit. Especially, diesel engines with mechanical fuel system can be easily converted to common-rail fuel system with a developed electronic control unit. Also, with this developed electronic control unit, old technology compression ignition engines can be turned into dual-fuel mode easily. Thus, thanks to the flexibility of engine maps to be loaded into the electronic control unit, diesel engines can conveniently be operated with alternative gas fuels and diesel dual fuel. In particular, hydrogen, an alternative, environmentally friendly, and clean gas fuel, can easily be used with diesel engines by pilot spraying. Software and hardware development of electronic control unit are made, in order to operate a diesel engine with diesel+hydrogen dual fuel. Finally, developed electronic control unit was reviewed on 1500 r/min stable engine speed on different hydrogen energy rates (0%, 15%, 30%, and 45% hydrogen) according to thermic efficiency and emissions (CO, total unburned hydrocarbons, NOx, and smoke), and apart from NOx emissions, a significant improvement has been obtained. There was no increased NOx emission on 15% hydrogen working condition; however, on 45% hydrogen working condition, a dramatic increase arose.

Electronic Control Unit Design of Electronically Controlled Air Suspension (ECAS) for Vehicle Based on Freescale Microcontroller

2014 ◽  
Vol 494-495 ◽  
pp. 242-245
Author(s):  
Xin Qiang Liu ◽  
Tian Yi Yan
Keyword(s):  
Ride Comfort ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Automotive Electronics ◽  
Electronic Control ◽  
Hardware System ◽  
Air Suspension ◽  
Signal Collection ◽  
Basic Ideas ◽  
Electronically Controlled Air Suspension

With the development of automotive electronics industry, the car which has electronically controlled air suspension is gained wide application. we designed an electronic control unit of automobile electronically controlled air suspension system (ECAS) including the hardware system which include the speed signal collection and processing circuit, the solenoid valve drive circuit, the CAN communication design, height detection circuit, Freescale microcontroller etc and the control strategy while propose some the basic ideas, based on Freescale microcontroller, after introducing the composition and the principle of electronically controlled air suspension. The ECAS can improve vehicle fuel economy, ride comfort and traffic-ability.

A New Hardware-in-the-Loop Test System for Electronic Control Unit of Dual-Clutch Transmission Vehicle

2012 ◽  
Vol 490-495 ◽  
pp. 13-18 ◽  
Author(s):  
Ran Chen ◽  
Lin Mi ◽  
Wei Tan
Keyword(s):  
Numerical Simulation ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Test System ◽  
Testing System ◽  
Primary Concern ◽  
Hardware In The Loop ◽  
Electronic Control ◽  
Simulation Environment ◽  
Dual Clutch Transmission

Hardware-in-the-loop simulation (HILS) is a scheme that incorporates some hardware components of primary concern in the numerical simulation environment. This paper discusses the implementation and benefits of using the HIL testing system for electronic control unit of dual-clutch transmission (DCT) vehicle.

scholarly journals PEMBUATAN ALAT PENDETEKSI KESALAHAN PADA PEMASANGAN TERMINAL BATERAI KENDARAAN

2016 ◽  
Vol 3 (1) ◽  
pp. 34
Author(s):  
Saparudin Saparudin ◽  
Sukma Firdaus ◽  
Marlia Adriana
Keyword(s):  
Light Emitting Diode ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control ◽  
Capacitive Discharge ◽  
Light Emitting ◽  
Discharge Ignition

Dunia otomotif berkembang sangat cepat, contohnya pada sistem pengapian kendaraan, mulai dari penggunaan platina, Capacitive Discharge Ignition (CDI), dan sekarang Electronic Control Unit (ECU) yang memerlukan sistem kelistrikan. Sumber listrik utama pada kendaraan adalah baterai yang menyuplai arus searah. Hasil putaran mesin di ubah oleh dinamo isi menjadi energi listrik, salah satu fungsinya untuk mengaktifkan material pada komponen baterai yang tidak bisa terus menerus aktif menyuplai daya listrik. Maka dari itu perawatan  pada aki harus dilakukan secara berkala, mulai dari mengecek kondisi baterai sampai mengganti dengan baterai yang baru. Pada saat pergantian baterai, terminal baterai dilepas dan dipasang kembali. Dalam hal ini, terdeteksi terjadinya kesalahan pada saat pemasangan terminal baterai, baik karena kelalaian, terburu-buru dan hal lain yang memacu serta produksi kendaraan hanya memberikan indikasi kutub baterai dengan tanda dan warna,  yang tidak bisa menjamin hal tersebut.  Dampak yang ditimbulkan adalah kendaraan tidak dapat dihidupkan. Current Protector adalah sebuah alat yang dapat mendeteksi, mengamankan dan memberitahukan apabila terjadi kesalahan pada saat pemasangan terminal baterai. Alat ini tersusun oleh komponen-komponen elektronik dioda, relay, resistor, light emitting diode (LED), Buzzer  dan sekering. Sehingga, meskipun pemasangan terminal aki tertukar, kendaraan masih dapat dihidupkan.

Automatic Requirement Classification: Tackling Inconsistencies Between Requirements and Regulations

2014 ◽  
Vol 08 (01) ◽  
pp. 47-65 ◽  
Author(s):  
Daniel Ott ◽  
Frank Houdek
Keyword(s):  
Large Scale ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Research Direction ◽  
Requirement Engineering ◽  
Electronic Control ◽  
Passenger Cars ◽  
Engineering Research ◽  
Current Requirement ◽  
Requirement Specifications

Current Requirement Engineering research must face the need to deal with the increasing scale of today's requirement specifications. One important and recent research direction is handling the consistency assurance between large scale specifications and many additional regulations (e.g. national and international norms and standards), which the specifications must consider or satisfy. For example, the specification volume for a single electronic control unit (ECU) in the automotive domain sums up to 3000 to 5000 pages distributed over 30 to 300 individual documents (specification and regulations). In this work, we present an approach to automatically classify the requirements in a set of specification documents and regulations to content topics in order to improve review activities in identifying cross-document inconsistencies. An essential success criteria for this approach from an industrial perspective is a sufficient classification quality with minimal manual effort. In this paper, we show the results of an evaluation in the domain of automotive specifications at Mercedes-Benz passenger cars. The results show that one manually classified specification is sufficient to derive automatic classifications for other documents within this domain with satisfactory recall and precision. So, the approach of using content topics is not only effective but also efficient in large scale industrial environments.

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