<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Throughout the years, many control strategies for adjustable dampers have been proposed, designed to boost the performance characteristics of a vehicle. Comfort control strategies such as Skyhook (SH), acceleration-driven damping or power-driven damping have been tested many times using simulation models of vehicles. Those tests, however, were carried out using simplified damper models – linear or simple bilinear with symmetric characteristics. This article presents the results of examination of the influence of using more complex damper models, with friction, hysteresis and time delay of state switching implemented, on the chosen dynamic responses of a suspension system for excitations in the typical exploitation frequency range. The results of the test are compared with those found in the literature and with the results of simulations performed with a simplified version of the advanced model used. The main conclusion is that friction and hysteresis add extra force to the already existing damping force, acting like a damping increase for all analysed control strategies. The actuation delays limit the effectiveness in a sense of comfort increasing to only some frequencies. The research shows the importance of including the proposed modules in testing for both adjustable and passive dampers.</p>
</abstract>

Throughout the years, many control strategies for adjustable dampers have been proposed, designed to boost the performance characteristics of a vehicle. Comfort control strategies such as Skyhook (SH), acceleration-driven damping or power-driven damping have been tested many times using simulation models of vehicles. Those tests, however, were carried out using simplified damper models – linear or simple bilinear with symmetric characteristics. This article presents the results of examination of the influence of using more complex damper models, with friction, hysteresis and time delay of state switching implemented, on the chosen dynamic responses of a suspension system for excitations in the typical exploitation frequency range. The results of the test are compared with those found in the literature and with the results of simulations performed with a simplified version of the advanced model used. The main conclusion is that friction and hysteresis add extra force to the already existing damping force, acting like a damping increase for all analysed control strategies. The actuation delays limit the effectiveness in a sense of comfort increasing to only some frequencies. The research shows the importance of including the proposed modules in testing for both adjustable and passive dampers.

Comparison of Vehicle Suspension Dynamic Responses for Simplified and Advanced Adjustable Damper Models with Friction, Hysteresis and Actuation Delay for Different Comfort-Oriented Control Strategies

Acta Mechanica et Automatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Throughout the years, many control strategies for adjustable dampers have been proposed, designed to boost the performance characteristics of a vehicle....

Comparison of Vehicle Suspension Dynamic Responses for Simplified and Advanced Adjustable Damper Models with Friction, Hysteresis and Actuation Delay for Different Comfort-Oriented Control Strategies

Published Online: Jan 14, 2023

Page range: 1 - 15

Received: Jul 01, 2022

Accepted: Aug 11, 2022

DOI: https://doi.org/10.2478/ama-2023-0001

Keywords
vehicle vertical dynamics, damper model, friction, hysteresis, comfort-oriented control strategies, Skyhook, ADD, PDD

© 2023 Zbyszko Klockiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Comparison of Vehicle Suspension Dynamic Responses for Simplified and Advanced Adjustable Damper Models with Friction, Hysteresis and Actuation Delay for Different Comfort-Oriented Control Strategies

Published Online: Jan 14, 2023

Page range: 1 - 15

Received: Jul 01, 2022

Accepted: Aug 11, 2022

DOI: https://doi.org/10.2478/ama-2023-0001

Keywordsvehicle vertical dynamics, damper model, friction, hysteresis, comfort-oriented control strategies, Skyhook, ADD, PDD

© 2023 Zbyszko Klockiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
vehicle vertical dynamics, damper model, friction, hysteresis, comfort-oriented control strategies, Skyhook, ADD, PDD