A New Control Design for an Optimized Electric Power Steering System

Kazusa Yamamoto 1, 2 Damien Koenig 1 Olivier Sename 1 Pascal Moulaire 2
1 GIPSA-SLR - SLR
GIPSA-DA - Département Automatique
Abstract : This paper is with the open invited track for the GdR MACS Young PhD researchers. It concerns applied research in the field of automotive control, in particular on the control of Electric Power Steering systems (EPS) to reduce the production costs. This study is meant to design a new control strategy with less available outputs (especially without torque sensor) and preserved steering performance. Thus, two approaches could be considered: first, a driver torque estimation coupled to a conventional controller; second, a control strategy not using the driver torque information. Moreover, from the obtained controller design, an analysis of the new system shall be developed in order to draw conclusions on an appropriate mechanical structure. For this purpose, the study is performed on a column-type EPS system for which a model is expressed by Newton's law of motion. This model is validated using experimental data obtained on a prototype vehicle. Then, the control objectives are defined and potential designs of the controller are discussed, with a reminder on driver torque estimation method. The simulation environment to analyse the strategies is also described.
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Communication dans un congrès
20th IFAC World Congress (IFAC WC 2017), Jul 2017, Toulouse, France. IFAC 2017 World Congress Proceedings, 2017
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Kazusa Yamamoto, Damien Koenig, Olivier Sename, Pascal Moulaire. A New Control Design for an Optimized Electric Power Steering System. 20th IFAC World Congress (IFAC WC 2017), Jul 2017, Toulouse, France. IFAC 2017 World Congress Proceedings, 2017. 〈hal-01597586〉

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