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A Study of Jackknife Stability of Class VIII Vehicles with Multiple Trailers with ABS Disc/Drum Brakes
Technical Paper
2004-01-1741
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE Commercial Vehicle Engineering Congress & Exhibition
SAE 2004 World Congress & Exhibition
Language:
English
Abstract
This study investigated the jackknife stability of Class VIII double tractor-trailer combination vehicles that had mixed braking configurations between the tractor and trailers and dolly (e.g. ECBS disc brakes on the tractor and pneumatic drum brakes on the trailers and dolly). Brake-in-turn maneuvers were performed with varying vehicle loads and surface conditions. Conditions with ABS ON for the entire vehicle (and select-high control algorithm on the trailers and dolly) found that instabilities (i.e. lane excursions and/or jackknifes) were exhibited under conditions when the surface friction coefficient was 0.3. It was demonstrated that these instabilities could be avoided while utilizing a select-low control algorithm on the trailers and dolly. Simulation results with the ABS OFF for the tractor showed that a tractor equipped with disc brakes had greater jackknife stability. However, the vehicle left the intended path at an earlier moment in the maneuver than a vehicle equipped with drum brakes under the same simulated conditions.
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Authors
Citation
Zagorski, S., Guenther, D., and Heydinger, G., "A Study of Jackknife Stability of Class VIII Vehicles with Multiple Trailers with ABS Disc/Drum Brakes," SAE Technical Paper 2004-01-1741, 2004, https://doi.org/10.4271/2004-01-1741.Also In
Vehicle Dynamics and Simulation, Steering and Suspensions on CD-ROM from the SAE 2004 World Congress
Number: SP-1881CD; Published: 2004-03-08
Number: SP-1881CD; Published: 2004-03-08
References
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- TruckSim™ Version 5.0 User Manual Ann Arbor, MI Mechanical Simulation Corporation 2003
- CFR Title 49 “Transportation” No. 658.17 FMCSA Weight Limits April 2003 http://www.fmcsa.dot.gov/rulesregs/fmcsr/regs/658.17.htm
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