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Optimal Steering for Double-Lane Change Entry Speed Maximization
Volvo Car Corporation.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Vehicle Dynamics.
Volvo Car Corporation.
Chalmers university of technology.
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2014 (English)In: Proceedings of ACEV'14 International symposium on advanced vehicle control, 22-26 September 2014,Tokyo, Japan, Tokyo, Japan: Society of Automotive Engineers, 2014Conference paper (Refereed)
Abstract [en]

This study introduces a method for estimating the vehicle’s maximum entry speed for an ISO3888 part-2 double-lane change (DLC) test in simulation. Pseudospectral collocation in TOMLAB/ PROPT calculates the optimal steering angle that maximizes the entry speed. The rationale is to estimate the vehicle’s performance in the design phase and adapt the tuning to improve DLC ratings. A two-track vehicle dynamics model (VDM) employing non-linear tires, suspension properties and a simplified Dynamic Stability and Traction Control (DSTC) system was parameterized as a 2011 T5 FWD Volvo S60 using in-field tests and its corresponding kinematics and compliance (K&C) measurements. A sensitivity analysis on the parameters revealed certain trends that influence the entry speed, which can be varied from 69.4 up to 73.3 km/h when adapting certain vehicle features. To evaluate the method, the generated optimal steering control inputs for the simulated S60 were applied on the actual car motivating the further development of the method. 

Place, publisher, year, edition, pages
Tokyo, Japan: Society of Automotive Engineers, 2014.
Keyword [en]
Vehicle dynamics, steering, brake, tire, suspension, optimization, simulation
National Category
Vehicle Engineering
Research subject
Vehicle and Maritime Engineering
URN: urn:nbn:se:kth:diva-163551OAI: diva2:800853
ACEV'14 International symposium on advanced vehicle control, 22-26 September 2014,Tokyo, Japan

QC 20150408

Available from: 2015-04-08 Created: 2015-04-08 Last updated: 2015-04-08Bibliographically approved

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Tidlund, MatthiasNybacka, Mikael
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