Experiences in Cold Start Optimization of a Multi-Purpose Vehicle Equipped with 2.2L Common Rail Diesel Engine

John, Dominic; Ghodke, Pundlik R.; Gajarlawar, Nilesh; lng, Jidhin Joseph

doi:10.4271/2011-01-0124

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…The start-up performance and emissions of different injection parameters [5][6][7][8][9], speeds [10,11], temperatures [12][13][14][15], and kinds of fuels [16][17][18][19] have been published by researches all over the world. Prof. Yunshan Ge from the Beijing Institute of Technology has researched combustion characteristics and brake thermal efficiency of heavy-duty diesel engines fueled with diesel and biodiesel at high altitudes.…”

Section: Introductionmentioning

confidence: 99%

The Emission Characteristics of a Diesel Engine During Start-Up Process at Different Altitudes

Fang

Lou

et al. 2019

Energies

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With increasingly stringent emission regulations, the cold start emissions have become more important than ever. Using a low compression ratio is a feasible way to improve a heavy-duty engine’s efficiency and emissions. However, cold start performance restricts the development of this technology, especially at high altitudes. In response, we conducted a study of the emissions of a heavy-duty low-compression-ratio diesel engine during start-up process at different altitudes. A plateau simulation system controlled the inlet and exhaust pressure to create altitude environments of 0 m, 1000 m, 2000 m, 3000 m, 3750 m and 4500 m. The gas, particulate and volatile organic compound (VOC) emissions were analyzed with speed and cycle during the start-up process. The results indicated that cold start performance and combustion characteristics became worse as altitudes increased. The gas and particulate emissions of carbon monoxide (CO), carbon dioxide (CO2), total hydrocarbon (THC) and nitrous oxide (NOX) almost all increased as the engine speed and altitude increased, and was much higher than in idle conditions. The PN and PM emissions in each particle diameter also increased as the altitude increased, which was the same as the nucleation mode and the accumulation mode particles. VOC emissions were also measured, which increased during the start-up process as altitudes increased.

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Section: Introductionmentioning

confidence: 99%

The Emission Characteristics of a Diesel Engine During Start-Up Process at Different Altitudes

Fang

Lou

et al. 2019

Energies

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“…For the purpose of improving the diesel engine cold start performance, the heat assistance devices, mainly glow plug, are widely used. Researches concerning the ignition and in-cylinder combustion process of diesel engines fixed with glow plugs show that the well-calibrated multiple injection with the assistance of glow plug can improve the combustion process so that it shortens the starting time without much idle instability [15], and, with the assistance of high speed visualization in an optical engine, the pilot ignition is found to be occurring in the vicinity of the glow plug and strongly influence the main combustion initiation [16]; moreover, the spray-glow plug configuration can influence the equivalence ratio on glow plug vicinity so that ignition is influenced and the higher injection velocity and the lower injection mass per orifice can reduce the ignition probability, but the combustion rate increases when the injection momentum is higher, so a trade-off between ignition and combustion process has to be considered [17,18]. Broatch et al [19] proposed a new method for estimating the threshold temperature for self-ignition of fuel during cold start of diesel engines.…”

Section: Introductionmentioning

confidence: 99%

Design and Evaluation for Target Indicated Torque Based Engine Starting Control Strategy in a High Pressure Common Rail Diesel Engine

Lin

Xiao²,

Li³

2016

Mathematical Problems in Engineering

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The diesel engine power demand of the start condition can be separated into two parts including resistance overcoming and acceleration realization for the reason that there is no power output during the starting process. The present paper mainly focuses on the fuel injection quantity control based on the engine power demand especially the acceleration demand for the resistance force is fixed for a specific engine, and the starting acceleration velocity is set as a target curve so that the acceleration process can also be fixed. The feasibility of the start control strategy proposed in this paper was verified by a comparison of the traditional starting control with a constant fuel quantity, and starting performance of the target acceleration based control shows predominance to the constant quantity control. And then the comparison between various starting acceleration processes, which was realized by the settings of acceleration curve slope factor, was conducted and results showed that the acceleration processes with higher slope factors perform better.

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An investigation on a diesel jet’s ignition characteristics under cold-start conditions

Liu

Zhang

et al. 2017

Applied Thermal Engineering

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Experiences in Cold Start Optimization of a Multi-Purpose Vehicle Equipped with 2.2L Common Rail Diesel Engine

Cited by 8 publications

References 4 publications

The Emission Characteristics of a Diesel Engine During Start-Up Process at Different Altitudes

The Emission Characteristics of a Diesel Engine During Start-Up Process at Different Altitudes

Design and Evaluation for Target Indicated Torque Based Engine Starting Control Strategy in a High Pressure Common Rail Diesel Engine

An investigation on a diesel jet’s ignition characteristics under cold-start conditions

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