Modeling and dynamic analysis of a novel energy-regenerative hydraulically interconnected suspension

Pengtao Liu, Farong Kou, Yixiao Chen, Guohong Wang and Longlong Xing

Energy, 2025, vol. 324, issue C

Abstract: A novel energy-regenerative hydraulically interconnected suspension (ER-HIS) is proposed to enhance the dynamic performance of vehicles while simultaneously converting the vibration energy into useable electricity. The mathematical model of ER-HIS is established based on the relationship between the flow rate and the pressure drop. The mathematical model of ER-HIS is verified by the bench test of 1/4 sub-model and the physical simulation model. Further, a comparative analysis is conducted on the force characteristics and energy harvesting capacity between the ER-HIS and the existing energy-regenerative hydraulically interconnected suspension. Thereafter, the simulation is conducted to compare the dynamic performance of vehicles equipped with the ER-HIS and the traditional suspension. The bench test results show that the response of the sub-model prototype is in good agreement with the simulation results of the mathematical model. The simulation results show that ER-HIS exhibits higher regenerated power and energy recovery efficiency compared to the existing energy-regenerative hydraulically interconnected suspension. Moreover, ER-HIS can provide better ride comfort and road-holding ability at low driving speeds, while recovering part of the vibration energy. The analysis also indicates that ER-HIS demonstrates superior anti-roll and anti-pitch performances compared to the traditional suspension under double lane change and braking conditions.

Keywords: Hydraulically interconnected suspension; Energy regeneration; Bench test; Vehicle dynamics (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:324:y:2025:i:c:s0360544225015701

DOI: 10.1016/j.energy.2025.135928

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