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Effectiveness and Characteristics Analysis of Inertia Driving on Fuel-Cut Zones in Urban Highway

도시부도로 연료차단구역의 관성주행 특성 및 효과분석

  • Choi, Eun Jin (Research Institute of Engineering and Technology, Incheon National University) ;
  • Kim, Eungcheol (Department of Civil & Environmental Engineering, Incheon National University) ;
  • Kim, Yong Jin (Asia Pacific School of Logistics, Inha University) ;
  • Yang, Joo Young (Department of Civil & Environmental Engineering, Incheon National University)
  • 최은진 (인천대학교 공학기술연구소) ;
  • 김응철 (인천대학교 건설환경공학과) ;
  • 김용진 (인하대학교 아태물류학부) ;
  • 양주영 (인천대학교 건설환경공학과)
  • Received : 2014.10.02
  • Accepted : 2014.12.08
  • Published : 2015.02.28

Abstract

In this study, the effects of inertial driving on a fuel-cut zone were analyzed by measuring the instantaneous variations of fuel consumption and speed. Thirteen sites with 2-8% downhill slopes were selected for the vehicle experiments. The vehicles were driven on the sites in two different driving modes, and the various vehicle states were measured using OBD under driving. For the analysis of the effects of inertial driving, the characteristics of fuel consumption, speed, and rpm were compared between normal and inertial driving. As a result, the fuel consumption was reduced from 24% to 78% according to the downhill grade. The amount of fuel consumption reduction was about 30cc for driving 500m downhill. Fuel cost savings amounting to 35 billion won can be achieved if inertial driving will be done in the case of Munemi-ro3. It is also believed that the reduced fuel consumption and vehicle speed through inertial driving will have considerable environmental and safety benefits.

본 연구에서는 실차 실험을 통해 연료차단구역에서의 관성주행 시 연료소모량변화와 속도변화를 통해 주행 특성을 분석하고, 연료차단구역의 효과를 분석하고자 하였다. 이를 위해 인천시 지역을 대상으로 2-8% 내리막 경사 13개 지점을 실험대상지역을 선정하여 실차실험을 수행하였다. 내리막 경사를 일반주행, 관성주행 2가지 방법으로 반복 주행하고, 주행하는 동안 차량정보저장장치로부터 수집된 실시간 연료소모량, 속도, 엔진회전속도 등의 차량상태를 비교 분석하였다. 13개 내리막 구간에서 관성주행 시 절감되는 연료소모량은 일반주행 시에 비해 최소 24% 최대 78%까지 절감되는 것으로 나타났다. 주행실험구간의 연장은 평균 500m 정도로 실제 해당구간을 통과하는 동안 절감되는 연료량은 최대 30cc정도로 개별차량이 특정구간을 관성주행 함에 따라 얻는 비용차이는 크지 않을 수 있으나, 해당구간의 교통량을 고려할 때 무네미로 3구간의 경우 439m 구간에 대해 연간 356억 원의 연료비를 절감할 수 있을 것으로 분석되었다. 또한 절감된 연료소모량에 따른 오염물질 배출과 관성주행으로 인한 교통안전 향상까지 감안한다면 더 큰 편익을 기대할 수 있다.

Keywords

References

  1. Cho S. H., Prak G. O., Lee D. W., Lee Y. T., Lee S. W. (2013), An Experimental Study About Reduction of $CO_2$ Emissions by Using the Downhill Fuel Cut Function, The Korea Society of Automotive Engineers Annual meeting, 547-552.
  2. Choi S. C., Ko K. H., Jeung I. S. (2013), Optimal Fuel-Cut Driving Method for Better Fuel Economy, The Korea Society of Automotive Engineers, International Journal of Automotive Technology, 14(2), 183-187. https://doi.org/10.1007/s12239-013-0020-4
  3. Choi S. C., Oh T. I. (2011), Effect on the Fuel Economy by Gradient in Automobile Driveway, Journal of the Korea Academia-Industrial Cooperation Society, 12(7), 2925-2930. https://doi.org/10.5762/KAIS.2011.12.7.2925
  4. Ko K. H., Choi S. C. (2012), A Study on the Improvement of Vehicle Fuel Economy by Fuel-Cut Driving, Journal of the Korea Academia-Indestrial Cooperation Society, 13(2), 498-503. https://doi.org/10.5762/KAIS.2012.13.2.498
  5. Ko K. H., Jung S. H., Yoo I. K., Lee S. H., Kim J. W. (2010), An Experimental Study on Reduction of $CO_2$ Emissions by Using Fuel-Cut Function of Vehicles, Transaction of Korea Society of Automotive Engineers, 18(1), 86-92.