Title: Evaluation of the potential of active powertrain, braking and steering systems based on in-wheel motors to improve the effectiveness of an evasive manoeuvre assistant

Authors: Cornelia Lex; Andrés Eduardo Rojas Rojas; Haymo Niederkofler; Arno Eichberger

Addresses: Institute of Automotive Engineering, Graz University of Technology, Inffeldgasse 11, 8010 Graz, Austria ' Institute of Automotive Engineering, Graz University of Technology, Inffeldgasse 11, 8010 Graz, Austria ' Logic Data Electronic and Software, Entwicklungs GmbH R&D Mechatronic, Wirtschaftspark 18, 8530 Deutschlandsberg, Austria ' Institute of Automotive Engineering, Graz University of Technology, Inffeldgasse 11, 8010 Graz, Austria

Abstract: When different vehicle dynamic control systems are integrated into an overall concept, the potential to influence the vehicle dynamics rises, thus increasing the potential of performance in safety-critical driving situations. The potential of active steering, powertrain and braking systems and their combinations is investigated systematically in order to increase the efficiency of an evasive manoeuvre assistant. Different powertrain topologies are taken into account. A vehicle dynamics control is presented that determines the actuator control signals for different actuator configurations. An algorithm to evaluate the maximum coefficient of friction serves as the basis to decide on how the actuator signals are distributed to the individual wheels. This study supports selecting promising concepts in the broad variety of possible combinations of available systems.

Keywords: evasive manoeuvre assistant; EMA; active powertrain systems; vehicle dynamics; dynamic control; optimal force allocation; collision avoidance; trajectory planning; collision detection; active intervention; advanced driver assistance systems; ADAS effectiveness; torque vectoring systems; in-wheel motors; safety-critical driving; active steering; powertrain systems; braking systems; evasive manoeuvres.

DOI: 10.1504/IJPT.2013.054153

International Journal of Powertrains, 2013 Vol.2 No.2/3, pp.132 - 152

Received: 16 May 2012
Accepted: 04 Sep 2012
Published online: 19 Jul 2014 *

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