Damping of vehicle roll dynamics by gain scheduled active steering

Active steering is applied to robustly reduce the rollover risk of vehicles with an elevated center of gravity. An actuator sets an auxiliary steering angle which is mechanically added to the steering angle commanded by the driver. The control law presented, is based on feedback of the roll rate and...

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Bibliographic Details
Published in1999 European Control Conference (ECC) pp. 4100 - 4106
Main Authors Ackermann, Jurgen, Odenthal, Dirk
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.1999
Subjects
active steering
Aerospace electronics
Damping
Eigenvalues and eigenfunctions
gain scheduling
parameter space approach
robust control
Rollover avoidance
Sensitivity
Transfer functions
Vehicle dynamics
Vehicles
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Summary:Active steering is applied to robustly reduce the rollover risk of vehicles with an elevated center of gravity. An actuator sets an auxiliary steering angle which is mechanically added to the steering angle commanded by the driver. The control law presented, is based on feedback of the roll rate and the roll acceleration. The controller gains are scheduled with the speed and the vehicle's CG height. The controller gains are found by the parameter space approach and constrained optimization in frequency domain. Robust reduction of transient rollover risk is shown by evaluation of the sensitivity function at various operating points. Simulation of a double lane change maneuver illustrates the benefits in time domain.
ISBN:3952417351
9783952417355
DOI:10.23919/ECC.1999.7099975