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논문 기본 정보

자료유형
학술저널
저자정보
Soo-Jin Jeong (Korea Automotive Technology Institute) SeoKyu Kim (INZI Controls) GumSu Lee (INZI Controls) Heehwa Joung (INZI Controls) Jinwoo Jeong (INZI Controls)
저널정보
한국자동차공학회 한국자동차공학회논문집 한국자동차공학회논문집 제25권 제4호
발행연도
2017.7
수록면
488 - 497 (10page)
DOI
10.7467/KSAE.2017.25.4.488

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초록· 키워드

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Advanced engine cooling systems reflect a variable coolant temperature because they can decrease the hydrodynamic frictional losses of lubricated engine parts in light duty conditions. To raise the operating temperature of passenger cars to a constant level safely, and thus optimize combustion and all accompanying factors, a new thermostat technology was developed: the electronic, map-controlled thermostat. The introduction of an electronically controlled thermostat would require mathematical models and real-time algorithms to implement intelligent thermal control strategies for prescribed engine temperature map tracking. In this paper, the feasibility of controlling the coolant temperature was examined in different driver demand conditions by using the electronic, map-controlled thermostat in lieu of a conventional, wax-based thermostat. FTP-75 and highway cycles were tested on a passenger car with a 1.5 liter, 4-cylinder diesel engine from CRUISE<SUP>®</SUP> M software, which is based on a physical, mathematical approach to model vehicle dynamics, transient engine performance, and an engine thermal management system. The engine operation conditions and engine temperature in corresponding cycles have been computed and used as an input to the Matlab Simulink<SUP>®</SUP> control model where the target coolant temperature is calculated, based on a map of optimized coolant temperature.

목차

Abstract
1. Introduction
2. System-Level Analysis Model
3. Analysis Results
4. Conclusion
References

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