The Development of an Electronic Control Unit for a High Pressure Common Rail Diesel/Natural Gas Dual-Fuel Engine

2014 ◽  
Author(s):  
Bo Yang ◽  
Xing Wei ◽  
Ke Zeng ◽  
Ming-Chia Lai
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Common Rail ◽  
Dual Fuel ◽  
Electronic Control ◽  
High Pressure Common Rail

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.

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.

Performance and emissions of an electronic control common-rail diesel engine fuelled with liquefied natural gas-diesel dual-fuel under an optimization control scheme

2018 ◽  
Vol 233 (6) ◽  
pp. 1380-1390 ◽  
Author(s):  
Jiantong Song ◽  
Chunhua Zhang ◽  
Guoqing Lin ◽  
Quanchang Zhang
Keyword(s):  
Diesel Engine ◽  
Natural Gas ◽  
Fuel Consumption ◽  
Liquefied Natural Gas ◽  
Common Rail ◽  
Dual Fuel ◽  
Brake Specific Fuel Consumption ◽  
Electronic Control ◽  
Control Scheme ◽  
Optimization Control

In order to reduce the fuel consumption and hydrocarbon and CO emissions of liquefied natural gas-diesel dual-fuel engines under light loads, an optimization control scheme, in which the dual-fuel engine runs in original diesel mode under light loads, is used in this paper. The performance and exhaust emissions of the dual-fuel engine and the original diesel engine are compared and analyzed by bench tests of an electronic control common-rail diesel engine. Experimental results show that the brake-specific fuel consumption and hydrocarbon and CO emissions of the liquefied natural gas-diesel dual-fuel engine are not deteriorated under light loads. Compared with diesel, the brake power and torque of dual-fuel remain unchanged, the brake-specific fuel consumption decreases, and the smoke density and CO2 emissions of dual-fuel decrease, while the hydrocarbon and CO emissions increase, and there is no significant difference in NOx emissions.

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>

scholarly journals Comparative Analysis of Performance, Emission, and Combustion Characteristics of a Common Rail Direct Injection Diesel Engine Powered with Three Different Biodiesel Blends

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5597
Author(s):  
K. M. V. Ravi Teja ◽  
P. Issac Prasad ◽  
K. Vijaya Kumar Reddy ◽  
N. R. Banapurmath ◽  
Manzoore Elahi M. Soudagar ◽  
...  
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Electronic Control Unit ◽  
Direct Injection ◽  
Engine Performance ◽  
Control Unit ◽  
Common Rail ◽  
Biodiesel Blends ◽  
Sustainable Solutions ◽  
Fuel Flexibility

Biodiesel is a renewable energy source which is gaining prominence as an alternative fuel over fossil diesel for different applications. Due to their higher viscosity and lower volatility, biodiesels are blended with diesel in various proportions. B20 blends are viable and sustainable solutions in diesel engines with acceptable engine performance as they can replace 20% fossil fuel usage. Biodiesel blends are slightly viscous as compared with diesel and can be used in common rail direct injection (CRDI) engines which provide high pressure injection using an electronic control unit (ECU) with fuel flexibility. In view of this, B20 blends of three biodiesels derived from cashew nutshell (CHNOB (B20)), jackfruit seed (JACKSOB (B20)), and Jamun seed (JAMNSOB (B20)) oils are used in a modified single-cylinder high-pressure-assisted CRDI diesel engine. At a BP of 5.2 kW, for JAMNSOB (B20) operation, BTE, NOx, and PP increased 4.04%, 0.56%, and 5.4%, respectively, and smoke, HC, CO, ID, and CD decreased 5.12%, 6.25%, 2.75%, 5.15%, and 6.25%, respectively, as compared with jackfruit B20 operation.

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.

Sign in / Sign up

Export Citation Format

Share Document