Parameter analysis of a hydraulic interconnected suspension based on a hydraulic energy regenerative shock absorber

Paper #:
  • 2018-01-0582

Published:
  • 2018-04-03
Abstract:
In this paper, a hydraulic interconnected suspension system (HIS) based on a hydraulic energy-regenerative shock absorber (HESA) is presented. At first, the structure and working principle of the suspension system is described in detail; secondly, the mathematic model of the suspension system is demonstrated to describe the hydraulic fluid characteristics, which means the relationship between the flow rate, flow velocity and oil pressure; then, a full vehicle model with 8-dof is built to research the dynamic characteristic of the HIS-HESA system; furthermore, a simulation model is established to carry out the parameter analysis of the suspension system; And in the simulation, the stability characteristic of the system is the main evaluation index, such as the anti-roll, anti-yaw, and anti-pitch performance, so the fishhook and the double lane change tests are considered as the working conditions of the simulation. The results show that the vehicle with the HIS-HESA system has good body stability performance, while maintaining excellent ride performance, and meanwhile the suspension system can regenerate some power.
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