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.

Differences in the power parameters of diesel engines with a high pressure fuel pump and a battery fuel system for some types of fuel

2021 ◽  
Vol 02 ◽  
pp. 44-47
Author(s):  
D. V. Boykov ◽  
◽  
A. P. Perepelin ◽  
Yu. E. Hryashchev ◽  
◽  
...  
Keyword(s):  
Experimental Data ◽  
High Pressure ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control ◽  
Fuel System ◽  
Fuel Pump ◽  
Fuel Mixtures

The article presents calculated and experimental data on changes in the power parameters of diesel engines equipped with a fuel system of various designs, on some types of fuels. Investigated: Euro diesel fuel, TS-1 kerosene, fuel mixtures with gasoline. It is shown that the power parameters of diesel engines with a "Common Rail" type battery fuel system with an electronic control unit change to a lesser extent in comparison with a traditional plunger-type high-pressure fuel pump with a mechanical regulator when switching to a more compressible and lighter fuel. The reasons for these differences in changing engine parameters are considered.

An Electronic Control Unit for Joint Supply of Fuel and Hydrogen Additives to Diesel Engines of Vehicles

2020 ◽  
Vol 91 (3) ◽  
pp. 153-157
Author(s):  
D. Ya. Nosyrev ◽  
I. K. Andronchev ◽  
V. V. Asabin ◽  
A. A. Mishkin
Keyword(s):  
Diesel Engines ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control

Reaserch on an Electronic Control System of CNG/Diesel Dual Fuel Engine

2013 ◽  
Vol 325-326 ◽  
pp. 1176-1179
Author(s):  
Xiao Ning Lv ◽  
Jiang Tao Qin ◽  
Jing Bo Li ◽  
Bo Wen Zou ◽  
Fu Qiang Luo
Keyword(s):  
Substitution Rate ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Dual Fuel ◽  
Electronic Control ◽  
Experiment Data ◽  
Common Rail System ◽  
Controlled System ◽  
Electronic Control System ◽  
Operation Cost

In order to convert the high pressure common rail system engine to CNG/Diesel dual fuel engine, an electronically controlled system is developed. The system includes a CNG fuel supply system, the CNG electronic control unit (ECU) and its matching harness etc. During starting and idle load conditions, the engine runs under pure diesel mode, when the speed and load reached a certain set point, the diesel ECU reduces the pilot diesel quantity, meanwhile, the CNG ECU increases the natural gas quantity, then the engine runs under dual fuel mode. The engine experiment data show that in different conditions, the highest substitution rate is 90% and the average substitution rate is 83%; the average savings ratio of operation cost per hour is 26%.

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>

CO-PM Modeling for Particulate Matter Emission of Diesel Engines

2003 ◽  
Author(s):  
Pi-Qiang Tan ◽  
Jia-Xiang Lu ◽  
Kang-Yao Deng
Keyword(s):  
Experimental Data ◽  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engines ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Formation Mechanisms ◽  
Electronic Control ◽  
Particulate Matter Emission ◽  
Good Agreement

In this study, a phenomenological model, that predicts the particulate matter emission (PM) of diesel engines, has been formulated. The CO-PM model is based on the formation mechanisms of PM and carbon monoxide (CO) of diesel engines. It can predict the emission concentration of PM via the emission concentration of CO. The calculation method of the model is simple and quick. To validate the model, experiments were carried out in two research diesel engines. Comparisons of the model results with the experimental data show good agreement. The model is useful for computer simulations of electronically controlled diesel engines, as well as electronic control unit (ECU) designs for diesel engines.

scholarly journals ECU calibration for gaseous dual fuel supply system in compression ignition engines

2020 ◽  
Vol 182 (3) ◽  
pp. 33-37
Author(s):  
Denys Stepanenko ◽  
Zbigniew Kneba
Keyword(s):  
Electronic Control Unit ◽  
Engine Performance ◽  
Control Unit ◽  
Primary Energy ◽  
Gaseous Fuel ◽  
Dual Fuel ◽  
Combustion Mode ◽  
Compression Ignition Engines ◽  
Engine Wear ◽  
Dual Fuel Engines

The dual fuel (DF) combustion mode is proven solution that allows to improve or get at the same level engine performance and reduce toxic compounds in exhaust gases which is confirmed by researchers and end-users. DF combustion mode uses two fuels gaseous fuel as a primary energy source and a pilot quantity of diesel fuel as ignition source. However, in order, to fully take advantage of the potential of the dual fuel mode, DF system must be proper calibrated. Despite the existence of commercial control systems for dual fuel engines on the market, the literature on the important parameters for the engine's operation introduced during calibration is scarce. This article briefly describes a concept of working algorithm and calibration strategy of a dual fuel electronic control unit (ECU) The purpose of calibration is to achieve the greatest possible use of an alternative gaseous fuel without causing accelerated engine wear.

scholarly journals Computer didactic model of the electronic control unit of compression ignition engine

2018 ◽  
Vol 19 (12) ◽  
pp. 662-666
Author(s):  
Sebastian Styła
Keyword(s):  
Electronic Control Unit ◽  
Control Unit ◽  
Compression Ignition ◽  
Electronic Control ◽  
Control Parameters ◽  
Compression Ignition Engine ◽  
Electronic Control System ◽  
Basic Parameters ◽  
Ci Engine ◽  
Graphic Environment

The article presented a computer model of the control unit of compression ignition engine developed and used as a didactic stand. It reflects the operating algorithms of the CI engine and gives the possibility of observation as well as determining the basic parameters and relationships occurring in the electronic control system EDC. In addition, the transparent structure of the model allows for easy introduction of changes in control parameters and modification of individual maps. The model was developed using the LabView graphic environment.

scholarly journals DEVELOPMENT OF MICROPROCESSOR SYSTEMS CONTROL OF GAS ICE FOR OPERATION WITH LIQUEFIED PETROLEUM GAS

InterConf ◽  
2021 ◽  
pp. 327-332
Author(s):  
Serhii Kovalov
Keyword(s):  
Diesel Engines ◽  
Internal Combustion Engines ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Internal Combustion ◽  
Intake Manifold ◽  
Combustion Engines ◽  
Electronic Control ◽  
Liquefied Petroleum Gas ◽  
Microprocessor Control

The expediency of converting the transport diesel engines in operation into gas internal combustion engines with spark ignition for operation on liquefied petroleum gas has been substantiated. It is shown that the use of liquefied petroleum gas instead of diesel fuel can reduce the operating costs of vehicles. Multifunctional electronic microprocessor control systems based on Avenir Gaz 37 level “A” and Avenir Gaz 37 level “B” electronic control units have been developed. It is shown that an electronic microprocessor control system with an Avenir Gaz 37 electronic control unit of level "A" allows converting diesel engines into gas internal combustion engines with LPG supply through a gas-air mixer into the intake manifold. The test results showed the high energy and efficient performance of the gas internal combustion engine. The second electronic microprocessor control system with an electronic control unit Avenir Gaz 37 of level "B" allows converting diesel engines into gas internal combustion engines with LPG injection through an accumulative power supply subsystem and multipoint injection of liquefied petroleum gas (Common Rail type) in combination with the use of a contactless electronic subsystem ignition with a movable voltage distributor and a cylinder filling control subsystem with a charge of the working mixture. At the same time, Avenir Gaz 37 "B" ECU with a loaded B1 level software module provides group injection of LPG into the intake manifold and sequential injection with a B2 level software module. The principle of operation of each of the three subsystems, which the D-240-LPG-"B" gas engine is equipped with, is described. The tests carried out on the D-240-LPG-"B" gas engine with the Avenir Gaz 37 "B" control unit confirmed its operability.

The development of an electronic control system for diesel–natural gas dual-fuel engine

2018 ◽  
Vol 232 (4) ◽  
pp. 473-480
Author(s):  
Youyao Fu ◽  
Bing Xiao
Keyword(s):  
Control System ◽  
Natural Gas ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Mode Switching ◽  
Dual Fuel ◽  
Electronic Control ◽  
Engine Operation ◽  
Electronic Control System ◽  
Diesel Nozzle

To meet the actual application requirements for the diesel–natural gas dual-fuel engine refit, a new electronic control system for the dual-fuel engine is developed in the study. Specifically, an active mode switching board is developed to achieve flexible switching between the pure diesel mode and dual-fuel mode. A diesel nozzle physical simulator is developed to ensure that the original diesel electronic control unit does not trigger fault alarm when engine works in the dual-fuel mode. Moreover, a dual-fuel electronic control unit, which uses the high-speed and multicore TMS320F28M35 as its microcontroller unit, is additionally developed on the basis of the original diesel electronic control unit. The peak and hold current shape for the diesel nozzle is intelligently controlled by the software program in C2000 core. Experiments reveal that the developed electronic control system can select a proper working mode according to the engine operation condition and smoothly switch the working mode without any fault alarms.

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