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Interaction of Vehicle Ride Vibration Control with Lateral Stability Using Active Rear Wheel Steering
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 20, 2009 by SAE International in United States
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In this work the effects of vehicle vertical vibrations on the tires/road cornering forces, and then consequently on vehicle lateral dynamics are studied. This is achieved through a ride model and a handling model linked together by a non-linear tire model. The ride model is a half vehicle with four degrees of freedom (bounce and pitch motions for vehicle body and two bounce motions for the two axles). The front and rear suspension are a hydro-pneumatic slow-active systems with 6 Hz cut-off frequency designed based on linear optimal control theory. Vehicle lateral dynamics is modeled as two degrees (yaw and lateral motions) incorporating a driver model. An optimal rear wheel steering control in addition to the front steering is considered in the vehicle model to represent a Four Wheel Steering (4WS) system. The tire non-linearity is represented by the Magic Formula tire model. The ride vibration control, vehicle lateral dynamics and tire/road cornering forces are interlinked together in order to study the effect of vertical vibration control on the vehicle lateral stability with active rear wheel steering. The results are time domain simulation of the vehicle response when performing lateral maneuvers while road wheels are subjected to vertical excitation. Vehicle lateral dynamics are compared with 2WS and 4WS systems taking into account the vehicle wheelbase correlation between front and rear active suspension systems.
CitationOraby, W., Aly, M., El-Demerdash, S., and Selim, A., "Interaction of Vehicle Ride Vibration Control with Lateral Stability Using Active Rear Wheel Steering," SAE Technical Paper 2009-01-1042, 2009, https://doi.org/10.4271/2009-01-1042.
- Cho Young H. Kim J. 1996 Stability Analysis of the Human Control Vehicle Moving Along a Curved Path Vehicle System Dynamics 25
- Cho Young H. Kim J. 1995 Design of Optimal Four-Wheel Steering System Vehicle System Dynamics 24
- Demerly Jon D. Youcef-Toumi, Kamal NonLinear Analysis of Vehicle Dynamics (NAVDyn): A Reduced Order Model for Vehicle Handling Analysis SAE paper no. 2000-01-1621 2000
- Harada Masanori Harada Hiroshi Analysis of lateral stability with integrated control of suspension and steering systems JSAE 1999
- Pascali, L. Gabrielli, P. Caviasso, G. Improving Vehicle Handling and Comfort Performance Using 4WS SAE paper no. 2003-01-0961 2003
- HANAMURA Yoshifumi ARAKI Yoshiaki OYA Masahiro HARADA Hiroshi Control of Maneuverability and Stability as well as Ride Comfort by Active Suspension Control with Additional Vertical Load Control AVEC 98 1998
- Oraby, W. Aly, M. El Demerdash S. Selim, A. Influence of Active Suspension Preview Control on the Vehicle Lateral Dynamics SAE World Congress 2007, SAE paper no. 2007-01-2347 2007
- Bakker; Egbert Pacejka Hans B. Lidner, Lars A New Tire Model with an Application in Vehicle Dynamics Studies Auto Technologies Conference and Exposition Monte Carlo Monaco 1989
- Aly M. ‘Improvement of Vehicle Dynamics Using Active Controlled Systems’ Helwan University Egypt 2006
- El-Demerdash, S.M. Performance of Limited Bandwidth Active Suspension Based on Half Car Model SAE paper no. 981118 1998
- El-Demerdash, S.M. Selim, A.M. Crolla, D.A. Vehicle Body Attitude Control Using an Electronically Controlled Active Suspension Based SAE paper no. 1999-01-0724 1999