• 제목/요약/키워드: Braking energy regeneration system

검색결과 20건 처리시간 0.026초

유압 축압기식 제동에너지 회생시스템을 장착한 정유압구동식 차량의 모의시험기 개발 (Development of a Simulator of Vehicle Equipped with Hydrostatic Transmission and Hydraulic Accumulator Type-Braking Energy Regeneration System)

  • 이성래
    • 한국자동차공학회논문집
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    • 제11권5호
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    • pp.119-126
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    • 2003
  • The simulator of a vehicle equipped with hydrostatic transmission and hydraulic accumulator type-braking energy regeneration system is developed using a PC. The simulator receives the accelerator pedal angle and the brake pedal angle generated by the operator using the keyboard, updates the state variables of the energy regeneration system responding to the input signals, and draws the moving pictures of the accumulator piston, pump plate angle and pump/motor plate angle every drawing time on the PC monitor. Also, the operator can observe the accel pedal angle, brake pedal angle, pressures of accumulators, vehicle speed, hydraulic torque, engine torque and air brake torque representing the operation of braking energy regeneration system through the PC monitor every drawing time. The simulator can be a very useful tool to design and improve the braking energy regeneration system.

유압 축압기식 제동에너지 희생시스템을 장착한 기계식 변속기 차량의 모의시험기 개발 (Development of a Simulator of Vehicle Equipped with Mechanical Transmission and Hydraulic Accumulator Type-Braking Energy Regeneration System)

  • 이성래
    • 한국자동차공학회논문집
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    • 제12권5호
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    • pp.180-186
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    • 2004
  • The simulator of a vehicle equipped with mechanical transmission and hydraulic accumulator type-braking energy regeneration system is developed using a PC. The simulator receives the shift lever position, the accelerator pedal angle and the brake pedal angle generated by the operator using the keyboard, updates the state variables of the energy regeneration system responding to the input signals, and draws the moving pictures of the accumulator piston and pump/motor plate angle every drawing time on the PC monitor. Also, the operator can observe the shift lever position, the accel pedal angle, brake pedal angle, pressures of accumulators, vehicle speed, hydraulic torque, engine torque and air brake torque representing the operation of braking energy regeneration system through the PC monitor every drawing time. The simulator can be a very useful tool to design and improve the braking energy regeneration system.

스크롤 기기 이용 공압식 회생제동시스템의 연비향상 효과에 관한 연구 (A Theoretical Study on Fuel Economy Improvements by Pneumatic Type Braking Energy Regeneration System Using the Scroll Mechanism)

  • 신동길;김영민;김용래
    • 에너지공학
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    • 제20권4호
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    • pp.286-291
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    • 2011
  • 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.

슈퍼커패시터를 이용한 회생에너지 증대 및 제동에 관한 연구 (A Study of Increasing Regeneration Energy and Braking Using Super Capacitor(EDLC))

  • 권오정;박창권;오병수
    • 한국자동차공학회논문집
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    • 제14권6호
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    • pp.24-33
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    • 2006
  • This experiment explains about electrical braking equipment which will be used for 1.2kW PEMFC HEV. The equipment is made of BLDC motor and super capacitor(EDLC). The circuit is designed for regeneration braking that can save the energy from low voltage of generation with BLDC motor. Increasing a regeneration energy from braking system is effected with regeneration current and SoC of super capacitor(EDLC). Electrical braking in electrical vehicle is suitable for regeneration braking with dynamic braking together.

압력커플링 정유압 변속기를 이용한 에너지 절감 유압시스템에 관한 연구 (A Study of Energy Saving Hydraulic System by A Pressure Coupling Hydrostatic Transmission)

  • 도황팅;안경관
    • 드라이브 ㆍ 컨트롤
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    • 제9권1호
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    • pp.10-17
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    • 2012
  • Nowadays, the demand of energy saving is increasing more and more while the natural resources have been exhausted. Besides, the emission gas caused by vehicles has been being a serious environment problem. Therefore, many studies have been carried out, especially focusing on braking energy regeneration, in order to save energy as well as reduce emission of mobile vehicles. In this paper, we propose a closed-loop hydrostatic transmission for braking energy regeneration with two configurations to reduce the energy consumption by recovering the braking energy. The effectiveness of the proposed system was verified by simulation. The simulation results indicated that the pressure coupling configuration gave better performance in comparison to flow coupling configuration about 40.8%, 61.7% and 53.8% reduction of fuel consumption in 10 mode, 10 mode modified profile and highway schedules, respectively.

도시철도용 에너지저장시스템 에너지 절감을 현장시험 (Field Test of Energy Storage System on Urban Transit System)

  • 이한민;김길동;안천헌;김영규;김태석
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2009년도 춘계학술대회 논문집
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    • pp.1461-1467
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    • 2009
  • The electric railway is a clean and energy saving system, because it requires relatively less energy than automobiles by transporting the same passengers or goods. Six thousands of vehicles are operated on Korean urban transit system. This system is 95% of regeneration system. Especially, the VVVF-Inverter vehicle has a merit of the highest regeneration rate. Energy consumption is 90% for traction and 10% for auxiliary supply. Braking energy is about 40% of energy consumption. Up to 40% of the tractive power of vehicles capable of returning energy to the power supply can be regenerated during braking and that this energy can be used to feed vehicles which are accelerating at the same time. The energy generated by braking vehicle would simply be converted into waste heat by its braking resistors if no other vehicle is accelerating at exactly the same time. Such synchronized braking and accelerating can not be coordinated, the ESS(energy storage system) stores the energy generated during braking and discharges it again when a vehicle accelerates. This paper presents field tests about the energy saving rate of the developed ESS. when the ESS is on/off, energy saving rate of the ESS is tested. The verification test in the field focused on energy saving.

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전기자동차용 제동 시스템 해석 및 최적화에 관한 연구 (The Analysis and Optimization far the Braking System in Electric Vehicle)

  • 오재응;이준일;이충휘;조용구;이유엽;이정윤
    • 한국자동차공학회논문집
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    • 제11권1호
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    • pp.172-178
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    • 2003
  • Driving range is one of the main problems in development of Electric Vehicles(EV). The Regenerative. braking system is required to overcome the problem, which converts kinetic energy of the vehicle during braking into electrical energy. This paper discusses the braking system of EV and Robust design especially developed to maximize energy recovery and to optimize braking performance. This is promised to be applied to the design of elements for EV braking system.

회생제동 전자제어 유압모듈을 이용한 하이브리드 차량의 에너지 회수 알고리즘 개발 (Development of Energy Regeneration Algorithm using Electro-Hydraulic Braking Module for Hybrid Electric Vehicles)

  • 여훈;김현수;황성호
    • 유공압시스템학회논문집
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    • 제5권4호
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    • pp.1-9
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    • 2008
  • In this paper, an energy regeneration algorithm is proposed to make the maximum use of the regenerative braking energy for a parallel hybrid electric vehicle(HEV) equipped with a continuous variable transmission(CVT). The regenerative algorithm is developed by considering the battery state of charge(SOC), vehicle velocity and motor capacity. The hydraulic module consists of a reducing valve and a power unit to supply the front wheel brake pressure according to the control algorithm. In order to evaluate the performance of the regenerative braking algorithm and the hydraulic module, a hardware-in-the-loop simulation (HILS) is performed. In the HILS system, the brake system consists of four wheel brakes and the hydraulic module. Dynamic characteristics of the HEV are simulated using an HEV simulator. In the HEV simulator, each element of the HEV powertrain such as internal combustion engine, motor, battery and CVT is modelled using MATLAB/$Simulink^{(R)}$. In the HILS, a driver operates the brake pedal with his or her foot while the vehicle speed is displayed on the monitor in real time. It is found from the HILS that the regenerative braking algorithm and the hydraulic module suggested in this paper provide a satisfactory braking performance in tracking the driving schedule and maintaining the battery state of charge.

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도시철도시스템용 에너지저장시스템 용량설계에 관한 연구 (A Study on Capacity Design of Energy Storage System for Urban Transit System)

  • 이한민;김길동;이장무
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2007년도 추계학술대회 논문집
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    • pp.697-700
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    • 2007
  • Six thousands of vehicles are operated on Korean urban transit system. 95% of them have regeneration system. Especially, the VVVF-Inverter vehicle has a merit of the highest regeneration rate. Therefore, the energy storage system is needed to be developed to use regeneration energy when the vehicle is braking. Therefore, Measuring regeneration energy in the substation need to know how much regeneration energy occurs, how much capacity of energy storage system is needed. After measuring regeneration energy, we design the capacity of energy storage system.

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전기철도시스템의 저탄소 녹색성장을 위한 에너지저장시스템에 관한 연구 (A Study on Energy Storage System for Low Carbon, Green Growth of Electric Railway System)

  • 이한민;김길동
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 제40회 하계학술대회
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    • pp.1161_1162
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    • 2009
  • The recent environmental protection trend requires more strict energy saving, therefore every transportation system should reduce energy consumption to the minimum value. High-efficiency operation system, energy saving and $CO_2$ emissions shall be addressed as important issue in railway system. These issues are the most essential factors of railway, compared to major public transportation system. Recently, saving energy in the electric railway system has been studied. For such new energy saving, the energy storage system is considered for saving energy. Energy saving is possible by efficient use of regenerated energy. Regenerated energy is recycled amongst vehicles by mean of charge and discharge corresponding to powering and braking of electric vehicle operations. This energy saving contributes to cut $CO_2$ to reduce greenhouse gas emissions. Recycling regenerated energy demonstrate significant effect on peak cut of consumption energy in railway substation. Absorption of excess energy avoids regeneration failure due to high traction voltage. Therefore, the energy storage system is needed to be adopted to use regeneration energy when the vehicle is braking.

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