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Keywords = Hybrid Skyhook–Groundhook

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28 pages, 3447 KB  
Article
Semi-Active Suspension Control Strategy Based on Negative Stiffness Characteristics
by Yanlin Chen, Shaoping Shen, Zhijie Li, Zikun Hu and Zhibin Li
Mathematics 2024, 12(21), 3346; https://doi.org/10.3390/math12213346 - 25 Oct 2024
Cited by 2 | Viewed by 1247
Abstract
This paper investigates the potential of negative stiffness suspensions for enhanced vehicle vibration isolation. By analyzing and improving traditional control algorithms, we propose and experimentally validate novel skyhook, groundhook, and hybrid control strategies for suspensions with negative stiffness characteristics. We establish pavement models, [...] Read more.
This paper investigates the potential of negative stiffness suspensions for enhanced vehicle vibration isolation. By analyzing and improving traditional control algorithms, we propose and experimentally validate novel skyhook, groundhook, and hybrid control strategies for suspensions with negative stiffness characteristics. We establish pavement models, incorporate negative stiffness into suspension modeling, and develop a performance evaluation index. Our research identifies shortcomings of classical semi-active control algorithms and introduces a new band selector to combine improved control methods. Simulation results demonstrate that the proposed semi-active suspension control strategy based on negative stiffness effectively reduces body vibration and enhances vehicle ride performance. Full article
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16 pages, 4302 KB  
Article
Experimental Analysis of a Novel Double Damper System with Semi-Active Control
by Anish Gorantiwar, Rajvardhan Nalawade, Arash Nouri and Saied Taheri
Electronics 2020, 9(9), 1518; https://doi.org/10.3390/electronics9091518 - 17 Sep 2020
Cited by 4 | Viewed by 3651
Abstract
An experimental study was conducted to compare the performance of an in-house built novel double semi-active damper against a conventional semi-active single damper. Different performance metrics were analyzed, and the performance of the two dampers was evaluated based on these metrics. A Hybrid [...] Read more.
An experimental study was conducted to compare the performance of an in-house built novel double semi-active damper against a conventional semi-active single damper. Different performance metrics were analyzed, and the performance of the two dampers was evaluated based on these metrics. A Hybrid Skyhook–Groundhook control algorithm was developed and implemented on the variable orifice double damper. The semi-active single damper is governed via two separate control strategies, namely—Skyhook and Groundhook control, respectively. The effectiveness of each algorithm is better understood by adding a normal load on top of the Shock Dyno, thus modifying it to act as a quarter car test rig. The sprung and unsprung acceleration data are collected via the accelerometers mounted on the Shock Dyno through a Data Acquisition System. The results obtained from this experiment provide a strong basis that the semi-active double damper performs better in terms of the comfort cost than that of the commercial semi-active single dampers. Full article
(This article belongs to the Section Systems & Control Engineering)
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