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Development and Analysis of a Detail Model for Steer-by-Wire Systems

  • Steer-by-wire systems represent a key technology for highly automated and autonomous driving. In this context, robust steering control is a fundamental precondition for automated vehicle lateral control. However, there is a need for improvement due to degrees of freedom, signal delays, and nonlinear characteristics of the plant which are unconsidered in the design models for the design of current steering controls. To be able to design an extremely robust steering control, suitable optimal models of a steer-by-wire system are required. Therefore, this paper presents an innovative nonlinear detail model of a steer-by-wire system. The detail model represents all characteristics of a real steer-by-wire system. In the context of a dominance analysis of the detail model, all dominant characteristics of a steer-by-wire system, including parameter dependencies, are identified. Through model reduction, a reduced model of the steer-by-wire system is then developed that can be used for a subsequent robust control design. Furthermore, this paper compares the steer-by-wire system with a conventional electromechanical power steering and shows similarities as well as differences.

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Author:Marcus Irmer, René Degen, Alexander Nüßgen, Karin Thomas, Hermann Henrichfreise, Margot Ruschitzka
Parent Title (English):IEEE Access : Practical Research, Open Solutions
Descirption of the primary publication:19.01.2023
Document Type:Article
Date of first Publication:2023/05/22
Date of Publication (online):2023/05/22
GND-Keyword:Modellierung; Steer-by-wire
Tag:Mechatronic Systems; Model Reduction; Modeling; Steer-by-Wire Systems; Vehicle Dynamic Systems
Article Number:22594678
Page Number:8
Institutes:Fahrzeugsysteme und Produktion (F08) / Fakultät 08 / Institut für Fahrzeugtechnik
Dewey Decimal Classification:500 Naturwissenschaften und Mathematik
Open Access:Open Access
OA-Publicationfonds TH Köln:OA-Publicationfonds TH Köln
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International