Yutaka Hirano
Toyota Motor Corporation, Japan
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http://dx.doi.org/10.3384/ecp1713217Published in: Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017
Linköping Electronic Conference Proceedings 132:1, p. 17-26
Published: 2017-07-04
ISBN: 978-91-7685-575-1
ISSN: 1650-3686 (print), 1650-3740 (online)
To achieve future low carbon mobility society, many new-type electric vehicles (EVs) are developed actively in recent period. Those EVs have integrated power unit which take place of conventional engine, transmission and differential gear components. Additionally it is rather easy to integrate torque vectoring function to those power units using gear sets to control torque distribution between left wheel and right wheel. In this paper, model-based development of an integrated control of the front steering angle and torque vectoring differential (TVD) gear system is described. New integrated control logic was developed using model matching control to let the vehicle yaw rate and vehicle slip angle follow the desired dynamics. Simulation results using a single track model of vehicle dynamics are shown to prove the efficacy of the proposed control. Though, full vehicle model considering all of vehicle dynamics and drive train motion using Modelica clarified the problem of this method in actual cases. Difference between single track model and full vehicle model was compared to estimate the reason of the problem.
Model Based Development, Vehicle Dynamics, Torque Vectoring, Model Matching Control
M. Burgess, Torque vectoring. Lotus Engineering, 2009.
DLR(German Aerospace Center), Power Train Library Users Guide (Version 2.1.0), 2013
S. Efstathios, E. Velenis, and S. Longo, Model predictive torque vectoring control for electric vehicles near the limits of handling. European .Control Conference (ECC) 2015 IEEE, 2015.
Y. Hirano, S. Inoue and J. Ota, Model-based Development of Future Small EVs using Modelica, Proceedings of Modelica Conference 2014, 2014.
Y. Hirano, S. Inoue and J. Ota, Model Based Performance Development of a Future Small Electric Vehicle by Modelica, Proceedings of Modelica Conference2015, 2015.
Y. Hirano, Research of Model Matching Control of Torque Vectoring Differential Gear System, Proceedings of Japanese Modelica Conference2016, 2016a
Y. Hirano, Model Based Development of an Integrated Control of Front Steering and Torque Vectoring Differential Gear System, Proceedings of SICE2016, 2016b
B. Höhn et al., Torque Vectoring Driveline for Electric Vehicle, Proceedings of the FISITA 2012 World Automotive Congress, Vol. 191, pp. 585-593, 2013.
Modelon, A.B., Vehicle Dynamics library Users Guide (Version 1.8), 2014
