Singular system-based approach for active vibration control of vehicle seat suspension

Wenxing Li, Haiping Du, Zhiguang Feng, Donghong Ning, Weihua Li, Shuaishuai Sun, Lixin Tu, Jumei Wei

Research output: Contribution to journalArticlepeer-review

Abstract

This paper proposes a singular system-based approach for active vibration control of vehicle seat suspensions, where the drivers' acceleration is augmented into the conventional seat suspension model together with seat suspension deflection and relative velocity as system states to make the suspension model as a singular system. In this novel seat suspension system, all the system states are easy to measure in real-time. A friction observer is applied to estimate the real system friction and an H1 controller is designed to achieve the optimal ride comfort performance with consideration of the friction compensation, actuator saturation, and time delay issues. The cone complementarity linearization (CCL) algorithm is applied to solve the nonlinear constraints. The experimental results show that good ride comfort performance can be achieved by the proposed controller in both the time and frequency domain compared with the uncontrolled seat suspension.

Original languageEnglish
Article number142-9_A3_03
JournalJournal of Dynamic Systems, Measurement and Control, Transactions of the ASME
Volume142
Issue number9
DOIs
Publication statusPublished - 2020 Sep

Keywords

  • Actuator saturation
  • Friction observer
  • H control
  • Seat suspension
  • Singular system

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Information Systems
  • Instrumentation
  • Mechanical Engineering
  • Computer Science Applications

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