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Energies 2017, 10(5), 689; doi:10.3390/en10050689

Modeling the Performance of a New Speed Adjustable Compound Supercharging Diesel Engine Working under Plateau Conditions

School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
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Author to whom correspondence should be addressed.
Academic Editor: Wenming Yang
Received: 24 March 2017 / Revised: 2 May 2017 / Accepted: 8 May 2017 / Published: 17 May 2017
(This article belongs to the Special Issue Internal Combustion Engines)
View Full-Text   |   Download PDF [3125 KB, uploaded 17 May 2017]   |  

Abstract

In order to improve the diesel engine performance under plateau (high altitude) conditions, a new Speed Adjustable Compound (SAC) supercharging method is proposed. A simulation model based on a six-cylinder V-type turbocharged intercooler diesel engine is built on the GT-POWER platform, and then simulation-based research is carried out. A genetic algorithm (GA) is used to identify the best operation parameters, including the supercharger speed and fuel injection quantity under steady state conditions. Transient performance is obtained through starting process simulation of a vehicle with SAC engine on the MATLAB/Simulink GT-POWER co-simulation platform. Both the steady and transient performance of the SAC engine are compared with those of the original engine. Results show that the torque of the SAC engine at full load is significantly increased when the engine speed n < 1600 r/min. The increment of the maximum torque can reach up to 31% at 1000 r/min compared to that of the original engine, while the peak torque is increased by 9%. The fuel consumption deterioration is restricted within 5%. What’s more, the SAC engine can help reducing the acceleration time by 20% during tip-in pedal events during the vehicle starting process. View Full-Text
Keywords: diesel engine; GT-POWER; genetic algorithm; co-simulation; plateau conditions diesel engine; GT-POWER; genetic algorithm; co-simulation; plateau conditions
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Xia, M.; Zhao, C.; Zhang, F.; Huang, Y. Modeling the Performance of a New Speed Adjustable Compound Supercharging Diesel Engine Working under Plateau Conditions. Energies 2017, 10, 689.

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