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Investigations into Alternative Suspensions for Commercial Vehicles
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English
Abstract
The ride dynamics of articulated heavy trucks were studied to assess the benefits of applying electronically controlled suspension elements. Computer simulations were used to compare passive, two-state and continuous semi-active, and fully active suspensions. These results prompted further work to develop a prototype active suspension, operating according to a limited bandwidth strategy, which was tested on a full size, single-wheel-station vibration rig. With the active prototype, root mean square body vertical acceleration was 30% lower than with a production air suspension, during a test simulating travel over a very good road profile. RMS dynamic tyre forces, generated by the active prototype were similarly 20% lower. Mean power consumption during this test was 1.2kW. Further consideration of the limited bandwidth active suspension led to the invention of a substantially passive equivalent. This passive equivalent was also tested and gave results indistinguishable from those of the active prototype.
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Citation
Wilkinson, P. and Crolla, D., "Investigations into Alternative Suspensions for Commercial Vehicles," SAE Technical Paper 933048, 1993, https://doi.org/10.4271/933048.Also In
References
- Eisenmann, J Birmann, D Himmler, A “Effects of Commercial Vehicle Design on Road Stress - Research Results Relating to Roads” Strasse und Autobahn 37 1986 6 238 244
- Cebon, D “Vehicle Generated Road Damage: A Review” VSD 18 1989 107 150
- Magnusson, G Carlsson, H Ohlsson, E “The Influence of Heavy Vehicles Springing Characteristics and Tyre Equipment on the Deterioration of the Road” VTI Report No 270 1984
- Acker, B Darenberg, W Gall, H “Active Suspensions for Passenger Cars” Proc 11th IAVSD Symp, VSD 18 (Supplement) 1989 15 26
- Olley, M “Independent Wheel Suspension. Its Why's and Wherefores” SAE Journal 34 1934
- Firth, G R “The Performance of Vehicle Suspension Fitted with Controllable Dampers” PhD Dissertation Department of Mechanical Engineering Leeds University, UK 1991
- Le Barre Forbes Andrew “The Measurement and Analysis of Road Surface Roughness” MIRA Report No 1970/5 MIRA Watling Street, Nuneaton, England
- Crosby, M J Karnopp, D C “The Active Damper - A New Concept for Shock and Vibration Control” 43rd Shock and Vibration Bulletin, Part H June 1973
- Karnopp, D Crosby, M J Harwood, R A “Vibration Control using Semi-Active Force Generators” Journal of Engineering for Industry May 1974 619 626
- Wilkinson, P A “Simulated Ride Dynamics of Advanced Suspensions for Articulated Commercial Vehicles” Proc 3rd EAEC International Conference on Vehicle Dynamics and Powertrain Engineering Strasbourg 1991 490 495
- Wilkinson, P A Crolla, D A “Development of Sub-Optimally Controlled Suspension for Articulated Trucks to Reduce Vibration and Road Wear” Proc FISITA 92 Total Vehicle Dynamics 1 1992 239 246
- Sharp, R S Hassan, S A “On the Performance Capabilities of Active Automobile Suspensions of Limited Bandwidth” VSD 16 1987 213 225
- Rampen, W H S Salter, S H “The Digital Displacement Hydraulic Piston Pump” Fluid Power - Proc 9th Int Symp 33 46 1990