A Systematic Literature Review of Various Control Techniques for Active Seat Suspension Systems

Mohammed Al-Ashmori,Xu Wang

doi:10.3390/app10031148

Abstract

Drivers of heavy trucks are exposed to large amounts of vibration which can lead to serious health risks. Many suspension systems/methods can be used to isolate these transmitted vibrations, such as vehicle suspension systems, cabin suspension systems and seating suspension systems. The central idea of the work is to identify the research gaps and raise our future research questions in this specific area. The novelty of this paper is proposing a model predictive controller for active vibration control of seating suspension systems. A systematic literature review of the existing work of the vibration control of seating suspension systems has been conducted. Various control techniques that are used in the seating suspension systems have been summarized and evaluated. This paper focusses on the biodynamic model of the driver and seat for the first step needed in the design of the seating suspension system. Then, it illustrates the different types of the system vibration controls and their performance evaluation methods. At the end, the paper details several active seating suspension systems including their actuation system structures and control algorithms which are used in the heavy vehicle trucks.

Highlights

Drivers of heavy trucks experience the whole body vibration (WBV) because they spend most hours driving for a long distance, which will result in discomfort of the diver [1]
The results showed that the active seat suspension is stable in the frequency range of 0–5 Hz
Degrees of freedom of the lumped mass-spring-dashpot models such as 1 degree of freedom (1 degree of (DOF)) and 2 DOF models are determined based on the number of the independent coordinates to which the oscillators are referred

Summary

Introduction

Drivers of heavy trucks experience the whole body vibration (WBV) because they spend most hours driving for a long distance, which will result in discomfort of the diver [1]. Researchers in the field of WBV have classified the vibration assessment measures into three categories namely: the mechanical impedance, apparent mass and seat to head transmissibility [5,6,7]. These function categories are used to assess the human body subjected to the vibration. The mechanical impedance is defined as the periodic excitation force at a certain frequency divided by the resulting vibration velocity [8]. The apparent mass is expressed as the periodic excitation force at a certain frequency over the resulting vibration acceleration. The vibration acceleration data from experimental measurement is extensively used to analyze the WBV [9]

Methods

Results

Conclusion