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http://dx.doi.org/10.7467/KSAE.2016.24.1.053

Modeling of Engine Coolant Temperature in Diesel Engines for the Series Hybrid Powertrain System  

Kim, Yongrae (Department of Engine Research, Korea Institute of Machinery and Materials)
Lee, Yonggyu (Department of Engine Research, Korea Institute of Machinery and Materials)
Jeong, Soonkyu (The 5th R&D Institute-1, Agency for Defense Development)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.24, no.1, 2016 , pp. 53-58 More about this Journal
Abstract
Modeling of engine coolant temperature was conducted for a series hybrid powertrain system. The purpose of this modeling was a simplification of complex heat transfer process inside a engine cooling system in order to apply it to the vehicle powertrain simulation software. A basic modeling concept is based on the energy conservation equation within engine coolant circuit and are composed of heat rejection from engine to coolant, convection heat transfer from an engine surface and a radiator to ambient air. At the final stage, the coolant temperature was summarized as a simple differential equation. Unknown heat transfer coefficients and heat rejection term were defined by theoretical and experimental methods. The calculation result from this modeling showed a reasonable prediction by comparison with the experimental data.
Keywords
Modeling; Engine; Coolant temperature; Series hybrid;
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  • Reference
1 I. Yoo, K. Simpson, M. Bell and S. Majkowski, "An Engine Coolant Temperature Model and Application for Cooling System Diagnosis," SAE 2000-01-0939, 2000.
2 N. Srun, "A Simple Engine Cooling System Simulation Model," SAE 1999-01-0237, 1999.
3 K. Mahmoud, E. Loibner and J. Krammer, "Integrated 1-D Tools for Modeling Vehicle Thermal Management System," SAE 2004-01-3406, 2004.
4 T. Mckinley and A. Alleyne, "Real-time Modeling of Liquid Cooling Networks in Vehicle Thermal Management Systems," SAE 2008-01-0386, 2008.
5 N. Karthikeyan and A. Gokhale, "A Comprehensive Study on Map Based and Closed Loop Simulation Model of Coolant Circuit for a Two Wheeler Liquid Cooled Engine," SAE 2013-32-9023, 2013.
6 F. P. Incropera and D. P. Dewitt, Fundamentals of Heat and Mass Transfer, 3rd Edn., John Wiley & Sons, New York, 2011.
7 J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw-Hill, New York, 1988.