Strohm, Johannes N. (Technische Universität München), Christ, Fabian (Technische Universität München)

Preview H-Inf Control of a Hybrid Suspension System

Scheduled for presentation during the Invited Session "Vehicle Suspension Control I" (TuAT2), Tuesday, June 25, 2019, 10:50−11:10, Chenonceau

9th IFAC International Symposium on Advances in Automotive Control, June 23-27, 2019, Orléans, France

This information is tentative and subject to change. Compiled on May 8, 2024

Abstract

In this paper we compare various H-Inf controllers, which differ in the way they exploit preview information about road irregularities. To this end, we introduce several linear models of the quarter car that incorporate the delay between sensing the road disturbance in front of the car and the arrival of the disturbance at the wheel in different ways. Based on these models, we design and compare feedforward controllers and feedback controllers coupled with a feedforward portion. For this, we use standard H-Inf control methodology as well as an H-Inf method for time delay systems. The latter is capable of coping with a varying time delay. We investigate the controller performance in simulations and discuss the influence of varying time delay on the performance.