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A Theoretical Study on Fuel Economy Improvements by Pneumatic Type Braking Energy Regeneration System Using the Scroll Mechanism

스크롤 기기 이용 공압식 회생제동시스템의 연비향상 효과에 관한 연구

  • Shin, Dong-Gil (Engine R&D Group, Korea Institute of Machinery & Materials) ;
  • Kim, Young-Min (Engine R&D Group, Korea Institute of Machinery & Materials) ;
  • Kim, Yong-Rae (Engine R&D Group, Korea Institute of Machinery & Materials)
  • Received : 2011.08.01
  • Accepted : 2011.12.02
  • Published : 2011.12.31

Abstract

The hybrid vehicle has a good fuel economy with a electric type braking energy regeneration system. This paper introduced a novel pneumatic type braking energy regeneration system. The novel system use a scroll mechanism which have both compression function and expansion function. While vehicle is decelerating, the scroll machinery, being operated as a scroll compressor, compress a atmospheric air to save the vehicle's kinetic energy and reuse a compressed air which is reserved in a air tank while vehicle is accelerating. In order to analyze fuel improvements by applying braking energy regeneration system to a vehicle, we simulated the rate of braking energy regeneration through CVS-75 mode driving patterns.

하이브리드 자동차는 전기방식 회생제동을 이용하여 연비가 우수하다. 본 논문에서는 새로운 공압식 회생제동 장치를 소개하였다. 공압식 회생제동장치는 압축과 팽창기능을 동시에 가지는 스크롤 기구를 이용한다. 차량 감속시에는 스크롤 기기는 압축기로 작동되면서 대기중의 공기를 압축하여 압축탱크에 저장한 후 차량 가속시에는 스크롤기구가 팽창기로 작동되면서 탱크에 저장된 압축공기가 차량 운동에너지로 활용된다. 회생제동장치를 사용함으로써 개선되는 연비를 분석하기 위해, CVS-75 모드 주행조건에서 시뮬레이션을 수행하였다.

Keywords

References

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