Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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On-Road Driving Performance Analysis of Diesel-Hybrid Bus in Daegu Metropolitan Area

대구지역 디젤하이브리드 버스의 실도로 주행 성능 분석

  • Kim, Hyunjun (Graduate School of Mechanical Engineering, Keimyung University) ;
  • Chun, Bongsu (Graduate School of Mechanical Engineering, Keimyung University) ;
  • Han, Manbae (Department of Mechanical and Automotive Engineering, Keimyung University) ;
  • Han, Moonsik (Department of Mechanical and Automotive Engineering, Keimyung University) ;
  • Kim, Yongrae (Green Car R&D Center, Korea Institute of Machinery & Materials) ;
  • Lee, Yonggyu (Green Car R&D Center, Korea Institute of Machinery & Materials) ;
  • Choi, Kyonam (Green Car R&D Center, Korea Institute of Machinery & Materials) ;
  • Jeong, Dongsoo (Green Car R&D Center, Korea Institute of Machinery & Materials)
  • Published : 2013.04.30
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Abstract

In this study we analyzed the on-road driving performance of two parallel-type diesel-hybrid buses which have been driven in Daegu metropolitan area. A real-time on-board data logger was facilitated to measure the vehicle information such as vehicle speed, idle stop, state of charge of battery, and engine operating conditions. These diesel-hybrid buses ran as a commuter at Daegu Exco area and Dalsung industrial complex. The driving pattern in Exco area comprised more frequent idle stop and relatively lower speed than at Dalsung area, where comprised no idle stop. Due to those different driving patterns, the fuel economy at Dalsung showed $3.7\;km/{\ell}$, which is about 8% higher than that of Exco. The main causes of this come from the higher portion of regenerative braking and higher speed which moves to the operating points of diesel engine with a lower fuel consumption.

Keywords

References

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