Ride comfort enhancement considering car body aerodynamics using actively controlled spoilers

Ride comfort enhancement considering car body aerodynamics using actively controlled spoilers

The paper studies the application of aerodynamic actuators based on actively controlled spoilers mounted on the car body for enhancing the ride comfort of automobiles running on randomly uneven road surfaces. In particular this work extends previous analysis developed by one of the authors by consid...

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Bibliographic Details
Published in:Vehicle System Dynamics Vol. 41; pp. 162 - 171
Main Authors: LODEWIJKS, G, NUTTALL, A. J. G, MAZZALI, C, MECHERONI, R, SAVKOOR, A. R
Format: Conference Proceeding Journal Article
Language:English
Published: Colchester Taylor & Francis 2004
Subjects:
Applied sciences
Exact sciences and technology
Machine components
Mechanical engineering. Machine design
Springs and dampers
Pitching
Wing
Motor car
Probabilistic approach
Pavement
Saturation
Control synthesis
Aerodynamics
Aerodynamic force
Car body
Vehicle dynamics
Mounting
Comfort
Non linear effect
Actuator
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Summary:The paper studies the application of aerodynamic actuators based on actively controlled spoilers mounted on the car body for enhancing the ride comfort of automobiles running on randomly uneven road surfaces. In particular this work extends previous analysis developed by one of the authors by considering the effect of aerodynamic forces induced by the pitch and bounce motions of the vehicle body itself. The design aspects of a wing actuator and the control law for optimising its performance is addressed. The control design considers the non-linearity due to saturation based on the SLQR approach using the stochastic linearisation technique. It is shown that under motorway driving conditions significant improvements in ride performance of automobiles can be achieved with the aid of actively controlled rooftop spoilers having a sufficiently fast response.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0042-3114
1744-5159