The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Development of a Fuel-Efficient Driving Strategy in Horizontal Curve Section

평면곡선부 구간에서의 연료효율적 주행전략 개발

  • 정양록 (한국건설기술연구원 ICT융합연구소) ;
  • 배상훈 (부경대학교 공간정보시스템공학과)
  • Received : 2015.09.03
  • Accepted : 2015.11.23
  • Published : 2016.06.30
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Abstract

In 2012, total GHG emissions in transport sector reached 88 Million ton CO2eq. The emissions generated in the road accounted for 94% of the transport sector. Currently, there are many efforts to operate an education and campaign for eco-driving. However study for eco-friendly vehicle control considering road alignment is limited. Therefore, the purpose of this study is to address fuel-efficient driving strategy in horizontal curve section. To fulfill the goal, designed ideal freeway horizontal curve road follows regulations about road structure. And safety speed is calculated for considering vehicle's safety on horizontal curve road. Authors composed the acceleration and deceleration scenario for each horizontal curve section and generated the speed profiles that are limited by the safety speed. Speed profiles are converted into force that horizontal curve affect to fuel consumption. Then, we calculated fuel consumption using Comprehensive Modal Emission Model. Then, we developed eco-driving strategy by selecting most fuel-efficient scenario. To validate this strategy, we selected study site and compared fuel consumption for eco and manual driving. As the result, fuel consumption when driver used eco-driving was lessened by 20.73% than that of manual driving.

우리나라 교통부문 온실가스 배출량은 2012년 88백만tonCO2eq에 도달하였으며, 이 중 도로에서 발생한 배출량이 94%를 차지한다. 현재 에코드라이빙 교육 및 홍보 프로그램을 실시하고 있으나 도로선형을 고려한 친환경적 차량제어 연구는 미비한 실정이다. 따라서 본 연구는 고속도로를 대상으로 평면곡선부를 주행하는 차량의 연료효율적 주행 전략을 제시하는 것을 목적으로 하였다. 먼저 설계지침에 따라 이상적인 평면곡선부를 설계하고 차량의 안전을 고려하기 위해 안전속도를 산정하였다. 설계한 평면곡선부의 구간별로 가 감속 시나리오를 설정하였으며 앞서 산정한 안전속도를 기준으로 속도를 제한하여 속도 프로파일을 생성하였다. 생성한 속도 프로파일에 도로 선형에 따른 차량 속도변환식을 적용하였으며 Comprehensive Modal Emission Model에 적용하여 연료소모량을 산정하였다. 초기속도별 최적 시나리오를 도출하였으며 도출한 에코드라이빙 전략을 검증하기 위해 실제 운전자 주행과 에코드라이빙 전략을 적용 시 연료소모량을 비교 분석하였다. 분석결과, 에코드라이빙 주행 시 운전자의 주행보다 평균 20.73% 연료소모량 감축효과가 나타나는 것으로 분석되었다.

Keywords

References

  1. Korea Transport Emission Management System, https://www.kotems.or.kr/, 2014.10.24.
  2. Korea Transportation Safety Authority, http://www.ts2020.kr/main.do, 2015.1.23.
  3. Ministry of Land(2013), Infrastructure and Transportation, Korea, Rules about the road structure & facilities standards, Ministry of Government Legislation, pp.227-364.
  4. Jeong J. H., Yu S. H. and Yun Y. H.(2000), "Analysis of the Driver's Behavior at Horizontal Curves," KSCE Journal of Civil Engineers, vol. 20, no. 1-D, pp.67-75.
  5. Choi J. S., Kim S. Y., Lee J. H. and Hwang K. S.(2008), "Development of a Vehicle Operating Speed Model and its Application for Designing Consistent Horizontal Alignment," Journal of Road Engineers, vol. 10, no. 1, pp.57-67.
  6. FHWA(2000), Evaluation of design consistency methods for two-lane rural highways, Executive Summary, pp.1-27.
  7. The Kora Transport Institute(2010), Eco-driving Based on an Analysis of Driving Patterns and Traffic Flow, pp.84-89.
  8. Youn M. S., Kang K. P. and Kim J. Y.(2011), "A Estimation Model of The Fuel Consumption Based on The Vehicle Speed Pattern," Jounal of Korean Society of Transportation, vol. 29, no. 4, pp.65-71.
  9. Ko M. H.(2011), "Incorporating vehicle emission models into the highway design process," Ph.D. Thesis, Texas A&M University, Texas, pp.1-521.
  10. Choi E. J.(2014), "Modeling Fuel Consumption and CO2 Emissions Considering Highway Alignment and Vehicle Acceleration Characteristics," Ph.D. Thesis, Incheon University, pp.1-52.
  11. Park S. M.(2012), "Analysis of traffic accident characteristics and safety evaluation model for the overlap section of freeway horizontal and vertical alignment," Ph.D. Thesis, Hanyang University, pp.1-178.
  12. Jung H. J.(2006), "Development of intelligent vehicle control simulation model based on ubiquitous computing," Master degree Thesis, Pukyong National University, pp.34.
  13. Park B. Y.(2005), Vehicle Dynamics, Munundang, pp.271-290.
  14. Scora G. and Barth M.(2006), Comprehensive Modal Emission Model (CMEM), version 3.01, User's Guide, pp.1-10.

Cited by

  1. Driving Methology for Smart Transportation under Longitudinal and Curved Section of Freeway vol.16, pp.3, 2017, https://doi.org/10.12815/kits2017.16.3.73