Browse > Article
http://dx.doi.org/10.5762/KAIS.2013.14.5.2069

A Study on the Characteristics of Fuel Consumption and Emissions of Diesel Vehicles Using Engine Coolant Flow Rate On/Off Control  

Kim, Sung Chul (Green Car Powertrain R&D Division, Korea Automotive Technology Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.5, 2013 , pp. 2069-2074 More about this Journal
Abstract
The use of the electromagnetic clutch water pump for internal combustion engine vehicles saves fuel and leads to a reduction in emissions. The clutch water pump allows the engine cooling system to select the optimum operation condition by using coolant flow rate on/off control. This study investigated the characteristics of fuel consumption and emissions of the diesel engine cooling system using the clutch water pump. The electromagnetic clutch operation reduced by about 49% of engine warm up period at idle condition and controlled the optimum high coolant temperature at driving condition. Therefore, fuel consumption was enhanced by about 5%, and emissions such as HC, CO and $CO_2$ were also reduced to a certain degree even though NOx increased a little bit, compared to those of the conventional water pump under NEDC mode which represents the real driving pattern.
Keywords
Water pump; Electromagnetic clutch; Fuel consumption; Emission; Warm-up; NEDC;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. Chanfreau, B. Gessier, A. Farkh and P. Yves Geels, "The need for an Electrical Water Valve in a Thermal Management Intelligent System," SAE 2003-01-0274, 2003. DOI: http://dx.doi.org/10.4271/2003-01-0274   DOI
2 E. G. Ribeiro and A. P. de A. Fillho, "Electric Water Pump for Engine Cooling," SAE 2007-01-2785, 2007. DOI: http://dx.doi.org/10.4271/2007-01-2785   DOI
3 Z. N. Cehreli, "Cooling System Optimization on a 5-Cylinder Engine," SAE 2007-01-2600, 2007. DOI: http://dx.doi.org/10.4271/2007-01-2600   DOI
4 D. Robert and J. Chalgren, "Thermal Comport and Engine Warm-Up Optimization of a Low-Flow Advanced Thermal Management System," SAE 2004-01-0047, 2004 DOI: http://dx.doi.org/10.4271/2004-01-0047   DOI
5 M. Choi, M. Park, S. Cho and S. Han, "The Effect of Variable Water Pump Control of Diesel Engine on Decreasing Fuel Consumption," KSAE Spring Conference Proceedings, pp. 151-156, 2009.
6 R. Krafft, A. Wolf and W. Faller, "Electromagnetic Water Pump Clutch: Working Principle, Design Strategies and Applications for Heavy-Duty Vehicles," SAE 2007-01-4260, 2007. DOI: http://dx.doi.org/10.4271/2007-01-4260   DOI
7 http://www.dayco.com