A Comparative Analysis of High-Accuracy Black-Box and Grey-Box Models of MR-Dampers for Vehicles Control Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy

Format:

Conference/Event

Author/Creator:

Savaresi, Sergio M., author.

Conference Name:

SAE 2004 Automotive Dynamics, Stability & Controls Conference and Exhibition (2004-05-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

The topic of this paper is the identification of a high-precision model for Magneto-Rheological (MR) dampers. A semi-active MR-damper can be seen as a non-linear system, where the inputs are the stroke-velocity and the command current; the current is the control input which modulates at high-bandwidth the damping characteristic through the variation of a magnetic field. The output is the force delivered by the damper. Among the broad set of applications where MR-dampers can be used, this work mainly focuses on MR-dampers for the control of vehicle dynamics (trains, road vehicles, tractors, et cetera). High-precision models of MR dampers can be designed using two different model classes: gray-box models (also called semi-physical models) and black-box models. Both approaches are considered in this work. All the main problems and issues of the identification procedure are presented and discussed: experiment design, signal pre-processing, model-structure and performance-index selection, optimization and parameter estimation, model validation and software-implementation. State-of-the-art and innovative model structures are considered for analysis. The result provides a broad and detailed overview on approaches, tools, issues, and design choices for the development of MR-damper models

Notes:

Vendor supplied data

Publisher Number:

2004-01-2066

Access Restriction:

Restricted for use by site license