A coordinated control system for truck cabin suspension based on model predictive control
by Yukun Lu; Amir Khajepour; Amir Soltani
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 29, No. 5, 2022

Abstract: Truck drivers are constantly exposed to undesirable vibrations caused by uneven road surfaces, especially in long-distance transportations. Nowadays, a truck is usually equipped with two suspension systems, namely the primary and the cabin suspensions. The cabin suspension acts as a vibration isolation system between truck chassis and driver cabin. Different techniques have been proposed to eliminate undesired vibrations transmitted to drivers, among which the semi-active cabin suspension is one of the most effective approaches. In this study, a coordinated semi-active suspension system for improving ride comfort in vertical, roll, and pitch directions is introduced. To solve this constrained multi-objective optimisation problem, the model predictive control (MPC) is utilised. Meanwhile, the Skyhook control is considered as a benchmark. These two controllers are examined through the cosimulation between ADAMS/Car and MATLAB/Simulink. The results demonstrate that MPC has significant advantages over Skyhook in terms of optimising cabin dynamics and improving ride comfort.

Online publication date: Fri, 10-Feb-2023

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