This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Improvement of Trucks Ride Dynamics Using a Hydraulic Semi-Active Suspension System
Technical Paper
2002-01-3039
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this paper, a continuously controlled semi-active suspension system is designed for trucks main suspension. Using a linearized seven degrees of freedom mathematical model equipped with hydraulic and hydro-pneumatic components, the optimal damping forces for truck front and rear suspensions are designed based on optimal control theory using Linear Quadratic Regulation (LQR) to improve the ride comfort and dynamic tyre loads. The practical limitation for the damping forces and the time lag for system controllable elements are taken into account. The results are generated considering the suspension components non-linearity and the model is excited by statistically random road. The frequency domain results as power spectral density and the root mean square values are compared with those obtained from conventional passive suspension system.
Recommended Content
Authors
Topic
Citation
El-Demerdash, S., "Improvement of Trucks Ride Dynamics Using a Hydraulic Semi-Active Suspension System," SAE Technical Paper 2002-01-3039, 2002, https://doi.org/10.4271/2002-01-3039.Also In
References
- Besinger, F. H. Cebon, D. Cole, D. J. “Damper Models for Heavy vehicle Ride Dynamics” Vehicle System Dynamics 24 35 64 1995.
- Besinger, F. H. Cebon, D. Cole, D. J. “Force Control of a Semi-Active Dampers” Vehicle System Dynamics 24 695 723 1995
- El-Beheiry, E. M. “A Method for Preview Vibration Control of Systems Having Forcing Inputs and Rapidly Switched Dampers” Journal of Sound and Vibration 214 2 1998
- Valasek, M. et al “Dynamic Model of Truck for Suspension Control” Vehicle System Dynamics Supplement 28 496 505 1998
- Valasek, M. Kortum, W. “Nonlinear Control for Semi-active Road Friendly Truck Suspension” AVEC '98 1998 275 280
- Karnopp, D. “Active Damping in Road Vehicle Suspension Systems” Vehicle Systems Dynamics 12 291 316 1983
- Tesing, H. E. Hedrick, J. K. “Semi-Active Control Laws- Optimal and Sub-Optimal” Vehicle Systems Dynamics 23 545 569 1994
- Yoon, S. J. Han, S. B. “A Study on the Development of Active Damper System with Electric Motor Driven Orifice” AVEC'94 1994
- Nagai, M. Hasegawa, T. “Vibration Isolation Analysis and Semi-Active Control of Vehicles with Connected Front and Rear Suspension Dampers” JSAE Review 18 1997
- Moran, A. Hasegawa, T. Nagai, M. “Integration of Bilinear Systems and Neural Networks for Designing Nonlinear Semi-Active Suspensions” Journal of Robotics and Mechatronics 7 4 1995
- Pinkps, A. Shtarkman, E. Fitzgerald, T. “An Actively Damped Passenger Car Suspension System With Low Voltage Electro-Rheological Magnetic Fluid” AVEC' 94 1994
- Yoshida, H. et al “Sky-hook Following Control of Vehicle Using an ER Damper” proc. Of the 9 th SEAD C14 1997 57 62
- Bodie Mark O. Hac, A. “Closed Loop Yaw Control of Vehicles Using Magneto-Rheological Dampers” SAE 2000-01-0107 , SP-1537 2000
- Shuttlewood, D.A. “Practical Car Suspensions Employing Active and Semi-active Elements” Leeds University UK 1993
- El-Demerdash, S.M. Crolla, D.A. “Effect of nonlinear Components on the Performance of Hydropneumatic Slow-active Suspension system” Proc. Instn. Mech. Engrs (IMechE), part D: Journal of Automobile 210 1996
- Rajamani, R. Hedrick, J.K. “Semi-Active Suspensions- A Comparision Between Theory and Experiments” Proceedings 12 th IAVSD Symposium August 26-30 1991
- Kortum, W. “Introduction to System Dynamics of Ground Vehicles” Proceedings of the third ICTS Seminar held at Amalfi Italy May 5-10 1986
- Venhovens, P.J.TH. van der Knaap, A.C.M. Savkoor, A.R. van der Weiden, A.J.J. “Semi-Active Control of Vibration and Attitude Vehicles” Proceedings of the 13 th IAVSD Symposium Chengdu, China 1993
- Hac, A. “Suspension Optimization of a 2-DOF Vehicle Model Using a Stochastic Optimal Control Technique” Journal of Sound and Vibration 100 3 1985 323 357
- Soliman, A.M.A. Crolla, D.A. El-Sayed F.M. “A Comparison of Control strategies for the Switchable Dampers Suspension Systems” Int. J. of Vehicle Design 12 4 1993
- Tseng, H.E. Hedrick, J.K. “Semi-Active Control Laws - Optimal and Sub-Optimal” Vehicle System Dynamics 23 1994 545 569
- Ibrahim, I.M. Crolla, D.A. Barton, D.C. “Active Suspension for Trucks Incorporating Frame Flexibility Effects” Heavy Vehicle Systems, Int. J. of Vehicle Design 2 1 1995
- Amirouche, F. Palkovics, L. Woodrooffe, J. “Optimal Driver Seat Suspension Design for Heavy Trucks” Heavy Vehicle Systems, Int. J. of Vehicle Design 2 1 1995
- ElMadany, M.M. “Design of an Active Suspension for a Heavy Duty Truck Using Optimal Control Theory” Computers & Structures 31 3 385 393 1989
- El-Demerdash, S.M. “Performance of Limited Bandwidth Active Suspension Based on a Half Car Model” Developments in Tire, wheel, Steering and Suspension Technology (SAE SP- 1338 ) SAE Paper No. 981118 1998