MODELING OF HYDRAULIC ACCUMULATOR IN HYDROSTATIC REGENERATIVE BRAKING SYSTEM
Keywords:
hydro accumulator, recuperation, hydraulic pump/motor, gas/liquid chamber, high pressure, inert/nitrogen gasAbstract
This paper presents the mathematical model of the hydraulic accumulator, one of the key components of the hydrostatic regenerative braking system. The study focuses on the changes in thermodynamic parameters that occur during the compression of nitrogen gas due to the movement of oil inside the hydraulic accumulator. Specifically, the variations in pressure, temperature, density, and volume of the gas within the accumulator are analyzed. The findings provide valuable insights into the performance of the hydraulic accumulator, which can be used to optimize technological processes and aid in the design of hydrostatic systems. This work lays an important foundation for scientific developments aimed at enhancing the efficiency of hydrostatic braking systems and their wider implementation in practice.
References
Hamada, A.T. ve Orhan M.F., An Overview of Regenerative Braking Systems, Journal of Energy Storage, 2022, 1-33.
Ramakrishnan, R., Somashekhar, S. Hiremath, Singaperumal, M., Open Loop Dynamic Performance of Series Hydraulic Hybrid System with Hydrostatic Regenerative Braking, Proceedings of Joint Fluids Engineering Conference, Hamamatsu, Shizuoka, Japan, 2011.
Baseley, S., Ehret, C., Greif, E., Kliffken, M.G., Hydraulic Hybrid Systems for Commercial Vehicles, Proceedings of Commercial Vehicle Engineering Congress, Illinois, 2007.
Rydberg, K.E., Energy Efficient Hydraulic Hybrid Drives, Proceedings of Scandinavian International Conference on Fluid Power, 2009
Karaman, M., Korucu, S. A. L. İ. H. (2023). Modeling the vehicle movement and braking effect of the hydrostatic regenerative braking system. Engineering Perspective, 3(2).
Mrdja, P., Miljic, N., Popovic, S. J., Kitanovic, M., & Petrovic, V. (2012). Assesment of Fuel Economy Improvement Potential for a Hydraulic Hybrid Transit Bus. In Proceedings Green Design Conference (pp. 129-134).
Khavdu, R. M. (2015). Regenerative Braking System is Emerging Technology to Recover Waste Energy. INTERNATIONAL JOURNAL OF ENGINEERING DEVELOPMENT AND RESEARCH, 3(4), 1024-1028.