직렬형 하이브리드 추진시스템의 디젤 엔진 냉각수온 모델링

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 T. Mckinley, "Real-time Modeling of Liquid Cooling Networks in Vehicle Thermal Management Systems" SAE 2008

2 J. B. Heywood, "Internal Combustion Engine Fundamentals" McGraw-Hill 1988

3 K. Mahmoud, "Integrated 1-D Tools for Modeling Vehicle Thermal Management System" SAE 2004

4 F. P. Incropera, "Fundamentals of Heat and Mass Transfer" John Wiley & Sons 2011

5 I. Yoo, "An Engine Coolant Temperature Model and Application for Cooling System Diagnosis" SAE 2000

6 N. Srun, "A Simple Engine Cooling System Simulation Model" SAE 1999

7 N. Karthikeyan, "A Comprehensive Study on Map Based and Closed Loop Simulation Model of Coolant Circuit for a Two Wheeler Liquid Cooled Engine" SAE 2013