Utilisation of actuators to improve vehicle stability at the limit: from hydraulic brakes towards electric propulsion
Journal article, 2011

The capability of over-actuated vehicles to maintain stability during limit handling is studied in this paper. A number of important differently actuated vehicles, equipped with hydraulic brakes toward more advanced chassis solutions, are presented. A virtual evaluation environment has specifically been developed to cover the complex interaction between the driver and the vehicle under control. In order to fully exploit the different actuators setup, and the hard nonconvex constraints they possess, the principle of control allocation by nonlinear optimization is successfully employed. The final evaluation is made by exposing the driver and the over-actuated vehicles to a safety-critical double lane change. Thereby, the differently actuated vehicles are ranked by a quantitative indicator of stability.

Modelica modeling

vehicle stability

global chassis control

control allocation

electric vehicles

force constraints

Author

Mats Jonasson

Volvo Cars

Johan Andreasson

Modelon AB

Stefan Solyom

Volvo Cars

Annika Stensson Trigell

Royal Institute of Technology (KTH)

Bengt J H Jacobson

Mechanics and Maritime Sciences

Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME

0022-0434 (ISSN)

Vol. 133 5

Areas of Advance

Transport

Subject Categories

Vehicle Engineering

More information

Latest update

10/10/2018