Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지

Performance Evaluation for Hydraulic Type Energy Regenerative System

유압식 에너지 회생시스템의 성능평가

  • Jung, Dong-Soo (Hydraulic & Pneumatic Research Team, KIMM) ;
  • Kim, Hyong-Eui (Hydraulic & Pneumatic Research Team, KIMM) ;
  • Kang, E-Sok (Department of Mechanical Design Engineering, Chungnam National University)
  • Published : 2006.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Vehicles usually have 3 types of speed pattern like acceleration, travel, and deceleration. It requires much driving energy from engine while accelerating, preserves much kinetic energy by inertia moment at travel speed, and releases the kinetic energy to the air while decelerating by the break system. If we accumulate the kinetic energy while decelerating and reuse the energy at the accelerating stage, then it can elevate the fuel efficiency, reduce the emission and improve the motive power. This paper proposes a hydraulic type energy regenerative system which converts the kinetic energy into hydraulic energy at the stage of deceleration and reuses it at the starting and accelerating stage of vehicles. The test equipment which has the field condition of city bus was prepared to evaluate the performance for energy regeneration. The test results show that both energy regeneration efficiency and fuel efficiency are improved significantly and the emission is reduced notably.

Keywords

References

  1. Y. J. Lee, G. C. Kim and Y. D. Pyo, 'The Influence of Operating Conditions on Fuel Economy of the Hybrid Electric Vehicle,' Transactions of KSAE, Vol.13, No.3, pp.35-40, 2005
  2. Y. Shida, M. Kanda, K. Ohta, S. Furata and J. Ishii, 'Development of Inverter and Power Capacitors for Mild Hybrid Vehicle(MHV)- Toyata 'Crown',' Int. J. Automotive Technology, Vol.4, No.1, pp.41-45, 2003
  3. S. Nakamura, 'Development of a Low-emission Diesel-hydraulic Hybrid Bus,' Jidousya Gijyutsu, Vol.49, pp.53-58, 1995
  4. T. Shima, 'Development of Diesel-Hydraulic Hybrid Bus,' Jidousya Gijyutsu, Vol.50, No.9, pp.30-35, 1996
  5. S. R. Lee 'Development of a Simulator of Vehicle Equipped with Mechanical Transmission and Hydraulic Accumulator Type- Braking Energy Regeneration System,' Transactions of KSAE, Vol.12, No.5 pp.180-186, 2004
  6. Y. R. Cho, B. S. Oh, K. K. Ahn, S. Y. Yang and B. R. Lee, 'A Study on the Energy Saving of Hydraulic Control System using Variable Hydraulic Displacement Pump/Motor,' KSPE, pp.239-244, 2003
  7. Y. R. Cho, S. Y. Yang and B. R. Lee, 'Energy Saving Hydraulic Control System using Hydraulic Pump/Motor,' ICCAS, pp.995-999, 2002
  8. K. S. Yi and J. T. Chung, 'Nonlinear Brake Control for Vehicle CW/CA Systems,' ASME Transactions on Mechatronics, Vol.6, No.1, March 2001
  9. H. S. Jeong and H. E. Kim, 'On the Instantaneous and Average Piston Friction of Swash Plate Hydraulic Axial Piston Machines,' KSME Int. J., Vol.18, No.10, 2004
  10. A. Akers and S. J. Lin, 'Optimal Control Theory Applied to a Pump with Single-stage Electro-hydraulic Servo-valves,' ASME Journal of Dynamic Systems, Measurement, and Control, Vol.110, No.2, pp.120-125, 1988 https://doi.org/10.1115/1.3152661
  11. N. D. Manring and R. Johnson, 'Modeling and Designing a Variable Displacement Open-loop Pump,' ASME Journal of Dynamic Systems, Measurement, and Control, Vol.118, pp.267- 271, 1996 https://doi.org/10.1115/1.2802313