Optimal Steering for Double-Lane Change Entry Speed Maximization
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)
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.
Vehicle dynamics, steering, brake, tire, suspension, optimization, simulation
Research subject Vehicle and Maritime Engineering
IdentifiersURN: urn:nbn:se:kth:diva-163551OAI: oai:DiVA.org:kth-163551DiVA: diva2:800853
ACEV'14 International symposium on advanced vehicle control, 22-26 September 2014,Tokyo, Japan
QC 201504082015-04-082015-04-082015-04-08Bibliographically approved