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자료유형
학술대회자료
저자정보
이민호 (한국석유관리원) 인정민 (한국석유관리원) 김재권 (한국석유관리원) 정충섭 (한국석유관리원)
저널정보
한국자동차공학회 한국자동차공학회 추계학술대회 및 전시회 2009년 학술대회 및 전시회
발행연도
2009.11
수록면
917 - 922 (6page)

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A chassis dynamometer test cell is employed along with a CVS (Constant Volume Sampler) system to test for both vehicle exhaust emissions and for fuel economy. The current fuel economy test method for gasoline and diesel fueled vehicles is called the Carbon-Balance method, and it works by testing the vehicle exhaust emissions for all carbon-containing components. Through conservation of mass, the carbon that comes out as exhaust must have gone in as fuel. However, there are significant differences between the real vehicle fuel rate(fuel flow metering method) and the CVS measured fuel consumption(carbon-balance method) during vehicle fuel economy tests. This is a concern because a different property characteristics of vehicle fuel are used during a test. It is important to be able to relate mass emissions to mass fuel consumption in order to understand and control vehicle engine performance.
In addition to the standard test equipment for vehicles, a highly accurate fuel flow meter is installed that measures the mass of fuel consumed by the engine during chassis dynamometer tests. A diesel vehicle was tested over CVS-75 mode (standard Fuel Economy protocols), where it is found that the fuel flow meter mass measurements correlate with the carbon-balance fuel consumption results measured with the CVS. Experiments are performed using two different test method where equivalent results are obtained. The carbon-balance fuel economy performance of the CVS is compared to that obtained with a fuel flow metering method.
This paper will explain the principles behind the new testing methods as well as the equipment required to accurately test vehicle fuel consumption. The techniques have been optimized for the chassis dynamometer, and the current bio-diesel fuel configuration is given as an example.

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Abstract
1. 서론
2. 시험장치 및 방법
3. 연비 계산법
4. 결과 및 고찰
5. 결론
References

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