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Investigation of energy efficient hydraulic hybrid propulsion system for automobiles

Author

Listed:
  • Wu, Wei
  • Hu, Jibin
  • Jing, Chongbo
  • Jiang, Zhonglin
  • Yuan, Shihua

Abstract

The hybrid method is effective for energy savings. This paper presents an energy efficient hydraulic hybrid propulsion system for automobiles. The system consists of hydraulic common pressure rail, hydraulic transformer and hydraulic pump or motor. The parameter design and propulsion characteristics of the hydraulic hybrid propulsion system were investigated. The simulated and tested results were proposed. Based on the definition of the hydraulic transformer normal power and normal flow, an effective parameter design method was given. The increase of the degree of freedom of the system makes the parameter design become more flexible and the proposed method for the parameter design is feasible. The system achieves a constant torque output at the low speed stage and a constant power output at the high speed stage. The ideal vehicle dynamic performance is guaranteed. The hydraulic transformer speed is closely related to the vehicle speed, which should be considered in the hydraulic transformer design. During the conversion from the driving mode to the regenerative braking mode, the hydraulic transformer speed and the hydraulic motor torque fluctuate inherently, which is unhelpful for the service life and reliability of the hydraulic components. It is aimed to provide an effective method for the system design.

Suggested Citation

  • Wu, Wei & Hu, Jibin & Jing, Chongbo & Jiang, Zhonglin & Yuan, Shihua, 2014. "Investigation of energy efficient hydraulic hybrid propulsion system for automobiles," Energy, Elsevier, vol. 73(C), pages 497-505.
    • Handle: RePEc:eee:energy:v:73:y:2014:i:c:p:497-505
    DOI: 10.1016/j.energy.2014.06.042
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    References listed on IDEAS

    as
    1. Van de Ven, James D., 2013. "Constant pressure hydraulic energy storage through a variable area piston hydraulic accumulator," Applied Energy, Elsevier, vol. 105(C), pages 262-270.
    2. Puddu, Pierpaolo & Paderi, Maurizio, 2013. "Hydro-pneumatic accumulators for vehicles kinetic energy storage: Influence of gas compressibility and thermal losses on storage capability," Energy, Elsevier, vol. 57(C), pages 326-335.
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    Citations

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    Cited by:

    1. Zhou, Junjie & Jing, Chongbo & Wu, Wei, 2020. "Energy efficiency modeling and validation of a novel swash plate-rotating type hydraulic transformer," Energy, Elsevier, vol. 193(C).
    2. Kwon, Hyukjoon & Sprengel, Michael & Ivantysynova, Monika, 2016. "Thermal modeling of a hydraulic hybrid vehicle transmission based on thermodynamic analysis," Energy, Elsevier, vol. 116(P1), pages 650-660.
    3. Wu, Wei & Hu, Jibin & Yuan, Shihua & Di, Chongfeng, 2016. "A hydraulic hybrid propulsion method for automobiles with self-adaptive system," Energy, Elsevier, vol. 114(C), pages 683-692.
    4. Kwon, Hyukjoon & Ivantysynova, Monika, 2021. "Experimental and theoretical studies on energy characteristics of hydraulic hybrids for thermal management," Energy, Elsevier, vol. 223(C).
    5. Liu, Huanlong & Jiang, Yue & Li, Shun, 2019. "Design and downhill speed control of an electric-hydrostatic hydraulic hybrid powertrain in battery-powered rail vehicles," Energy, Elsevier, vol. 187(C).
    6. Hyukjoon Kwon & Monika Ivantysynova, 2020. "System Characteristics Analysis for Energy Management of Power-Split Hydraulic Hybrids," Energies, MDPI, vol. 13(7), pages 1-23, April.
    7. Nie, Chunhui & Shao, Yimin & Mechefske, Chris K. & Cheng, Min & Wang, Liming, 2021. "Power distribution method for a parallel hydraulic-pneumatic hybrid system using a piecewise function," Energy, Elsevier, vol. 233(C).
    8. Bao, Qianqian & Zhou, Junjie & Jing, Chongbo & Zhao, Huipeng & Wu, Yi & Zhang, Zhu, 2022. "Nonlinear dynamic model for the free rotor of the swash plate-rotating hydraulic transformer," Energy, Elsevier, vol. 261(PB).
    9. Zhou, Junjie & Wei, Chao & Hu, Jibin, 2015. "A novel approach for predicting thermal effects of gas cavitation in hydraulic circuits," Energy, Elsevier, vol. 83(C), pages 576-582.

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