Euro­-6 경유차의 질소산화물(NOx) 배출에 대한 기계학습 분석

다국어 초록 (Multilingual Abstract)

In this paper, Diesel cars have higher torque and fuel efficiency than gasoline cars, and many vibration and noise problems have been solved, and demand for the market is increasing, mainly in Europe. Diesel cars have problems in that they emit a lot of NOx (nitrogen oxide) and PM (particulate matter) despite having higher thermal efficiency than gasoline cars and lower levels of hydrocarbon and carbon monoxide emissions in terms of emissions. For this reason, the World Health Organization (WHO) announced the emissions of diesel vehicles as a first­class carcinogen in June 2012. The regulations on automobile emissions around the world are becoming stricter, and the Euro­6 regulation, scheduled to take effect in 2014, aims to further reduce NOx by about 55%, although the PM's regulations remain unchanged compared to Euro­5.
Recently, in order to reduce air pollutants, the inspection standards for driving diesel vehicles have been strengthened, and to prevent attempts to illegally manipulate selective reduction catalyst devices, NOx (nitrogen oxide) inspection standards have been strengthened, vehicle types to be inspected, and smoke inspection standards and methods have also been improved.
Since the air pollution problem is recognized as a serious issue internationally,internationally, continuous monitoring and response are required through the automobile inspection system. Research is needed to accumulate sufficient data on NOx emissions of individual diesel vehicles operating on actual roads and comprehensively analyze the causes of PM and NOx emissions of diesel vehicles. Through this, a more reasonable evaluation of diesel vehicle emission reduction policies and productive management measures can be prepared.
The emission reduction device is a system for reducing harmful emissions generated by automobiles and includes various technologies and devices. Learn about the operating principle of the emission reduction device.
These reduction devices are integrated into the vehicle to meet Euro­6 standards. In the emission inspection mode, various tests are performed to evaluate the efficiency and operation status of these systems. For research purposes, it is important to understand the integration effects of these devices and to develop effective strategies that can be used for follow-up management and maintenance by evaluating performance, especially when various devices operate in combination.

목차 (Table of Contents)

• 목 차 ⅰ
• List of Tables ⅲ
• List of Figures ⅳ
• Abstract ⅵ
• 제 1 장 서 론 1
• 1.1 배출가스 검사 연구의 배경 및 현황 1
• 1.2 국내 대기오염 배출현황 3
• 1.3 경유자동차의 특징 및 규제 동향 5
• 1.4 분석 및 연구 내용 8
• 제 2 장 배출가스 측정 및 문제점 9
• 2.1 NOx 생성 및 특성 9
• 2.2 PM 생성 및 특성 12
• 2.3 경유자동차의 배출가스저감 후처리기술 15
• 2.4 배출가스검사 구분 및 방법 17
• 2.5 배출가스검사 측정 장치 및 구성 22
• 2.6 문제점 및 제안 26
• 제 3 장 분석 방법론 30
• 3.1 경유자동차 자료 분석 30
• 3.2 EURO-6 배출가스 분석 32
• 제 4 장 결 과 40
• 4.1 ML을 이용한 단일 변량 회귀 결과 40
• 4.2 ML을 이용한 다변량 회귀 결과 43
• 제 5 장 결 론 51
• 제 6 장 향후 연구 계획 53
• Reference 55