Electronic control systems for diesel engines

The paper aims at the development of fuel supply and electronic control systems for boosted high- and middle-speed transport engines. A detailed analysis of different ways of converting diesel engine to operate on natural gas was carried out. The gas diesel process with minimized ignition portion of diesel fuel injected by the Common Rail (CR) system was selected. Electronic engine control and modular gas feed systems which can be used both on high- and middle-speed gas diesel engines were developed. Also diesel CR fuel supply systems were developed in cooperation with the industrial partner, namely, those that can be mounted on middle-speed diesel and gas diesel engines. Electronic control and gas feed systems were perfected using modeling and engine tests. The high-speed diesel engine was converted into a gas diesel one. After perfection of the gas feed and electronic control systems, bench tests of the high-speed gas diesel engine were carried out showing a high share of diesel fuel substitution with gas, high fuel efficiency and significant decrease of NOх and СО2 emissions.

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Research and development of electronic speed control strategies for medium-speed marine diesel engines

International Journal of Engine Research ◽

10.1177/1468087417725005 ◽

2017 ◽

Vol 19 (5) ◽

pp. 584-596 ◽

Cited By ~ 3

Author(s):

Ying Hu ◽

Jianguo Yang ◽

Nao Hu ◽

Lei Hu ◽

Zhengyan Qian ◽

...

Keyword(s):

Diesel Engine ◽

Control Systems ◽

Diesel Engines ◽

Control Strategies ◽

Speed Control ◽

Electronic Control ◽

Test Bed ◽

Medium Speed ◽

Marine Diesel ◽

Hardware In Loop

Modern diesel engine systems rely more and more on electronic control systems. The benefits of such electronic control systems include reduced fuel consumption, limited emissions and enhanced performance. Following the trend, this article aims to derive an appropriate methodology for improving the performance of the speed regulation by upgrading an existing mechanical governing control system to an electronic one for the marine diesel engine. Hardware-in-loop simulations and the diesel engine test-bed experiments are applied to realize a V-type mode study of the speed control strategies for the marine medium-speed diesel engines. First, the algorithm of the strategies and the functions of the electronic control unit are verified through hardware-in-loop test bench which is established using hardware devices and a software tool chain from ETAS GmbH. Additionally, the specific parameters are modified and calibrated finely on the test bed with an online debugging system. Finally, to demonstrate the performances and the generality of the proposed control strategies, the test-bed results of the two types of marine diesel engines are illustrated. The experimental results indicate that a better performance is achieved by replacing the original controller with the proposed controller. And the methodology of the control strategies development is proven to be efficient.

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Small craft. Electrical/electronic control systems for steering, shift and throttle

10.3403/30211659u ◽

2015 ◽

Keyword(s):

Control Systems ◽

Electronic Control ◽

Small Craft

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Small craft. Electrical/electronic control systems for steering, shift and throttle

10.3403/30384495 ◽

2018 ◽

Keyword(s):

Control Systems ◽

Electronic Control ◽

Small Craft

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Particulate Control Systems for Diesel Engines Using Catalytically Coated and Uncoated Traps with Consideration of Regeneration Techniques

10.4271/830087 ◽

1983 ◽

Cited By ~ 9

Author(s):

Polat Öser ◽

Ulrich Thorns

Keyword(s):

Control Systems ◽

Diesel Engines ◽

Particulate Control

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

Advances in Mechanical Engineering ◽

10.1177/1687814018814076 ◽

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.

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