This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Example Utilization of Truck Tire Characteristics Data in Vehicle Dynamics Simulations
Annotation ability available
Sector:
Language:
English
Abstract
The ability to accurately simulate vehicle dynamics behavior with a mathematical model is limited by the quality of the tire model. In fact, the tire is often the single most important component in determining correlation between a mathematical vehicle model and measured experimental results. Tire data for heavy trucks are more difficult and expensive to acquire than passenger car and light truck data, and, consequently, there has been little published experience testing or modeling these tires. This paper shows how the analysts can integrate heterogenous tire modeling methods into one coherent tire model suitable for the simulation of an over-the-road 18-wheel tractor-trailer configuration. The methods used in this paper are:
- Tire F&M modeling that represents the effect of tread wear, water depth, and speed, as well as combined longitudinal and lateral slip conditions.
- Simulated closed loop maneuvers utilizing a path follower to ensure that variations in tire F&M properties do not influence the trajectory of the tractor's tracking reference point.
The BNPS tire model is used to represent pure longitudinal and lateral data. The COMBINATOR is used to predict the combined driving/braking performance of the tire from pure longitudinal and lateral tests. Linear regression of test results are used to create a parametric representation of cornering force to include the effects of water depth, speed, and tread wear. Predicted results based on data generated by the SAE Cooperative Research Truck Tire Characteristics Programs [1] are compared. The tire modeling methods are brought together into one coherent Tire Model File by using the Plug ‘n’ Play Tire Interface software. The vehicle is modeled using TruckSim™. Finally, the vehicle/tire system is run through a typical constant radius understeer test for a range of tire parameters and the results are discussed.
Recommended Content
Authors
Topic
Citation
Burke, R., Robertson, J., Sayers, M., and Pottinger, M., "Example Utilization of Truck Tire Characteristics Data in Vehicle Dynamics Simulations," SAE Technical Paper 982746, 1998, https://doi.org/10.4271/982746.Also In
References
- “Truck Tire Characterization Phase 1 Part 2,” SAE Cooperative Research Warrendale, PA April 6 1995
- Pottinger M. G. Pelz W. Pottinger D. Winkler C. B. “Truck Tire Wet Traction: Effects of Water Depth, Speed, Tread Depth, Inflation, and Load.” Society of Automotive Engineers (SAE) Paper 962153 October 1996
- Shuring D. J. Pelz W. Pottinger M. G. “A Model for Combined Tire Cornering and Braking Forces.” Society of Automotive Engineers (SAE) Paper 960180 February 1996
- Pottinger M. G. Pelz W. Falciola G. “Effectiveness of the Slip Circle,”COMBINATOR,“Model for Combined Tire Cornering and Braking Forces When Applied to a Range of Tires.” Society of Automotive Engineers (SAE) Paper 98C-165 1998
- Shuring D. J. Pelz W. Pottinger M. G. “The Paper-Tire Concept: A Way to Optimize Tire Force and Moment Properties.” Society of Automotive Engineers (SAE) Paper 970557 1997
- Pottinger M. G. Pelz W. Tapia G. A. Winkler C. B. “A Free-Rolling Cornering Test for Heavy Duty Truck Tires,” Tire Society Mtg Akron, OH 3 21-22 95
- Pottinger M. G. Pelz W. Tapia G. A. Winkler C. B. “A Straight-Line Braking Test for Heavy Duty Truck Tires,” Paper No 45 ACS Rubber Division Cleveland, OH 10 17-20 95
- Pottinger M. G. Pelz W. Tapia G. A. Winkler C. B. “A Combined Cornering and Braking Test for Heavy Duty Truck Tires,” 4th International Symposium on Heavy Vehicle Weights and Dimensions University of Michigan Ann Arbor, MI June 25-29 1995
- Shuring D. J. Pelz W. Pottinger M. G. “The BNPS Model -- An Automated Implementation of the ‘Magic Formula’ Concept,” SAE Transactions - Journal of Commercial Vehicles, Paper 931909 1993
- Winkler C. Aurell J. “Analysis and Testing of The Steady-State Turning of Multiaxle Trucks.” Fifth Symposium on Heavy Vehicle Weights and Dimensions March 29 1998
- Sayers M.W. Riley S.M. “Modeling Assump-tions for Realistic Multibody Simulations of the Yaw and Roll Behavior of Heavy Trucks.” Society of Automotive Engineers (SAE) Paper 960173 February 1996
- Sayers M.W. “Symbolic Vector/Dyadic Multibody Formalism for Tree-Topology Systems.” Journal of Guidance, Control, and Dynamics 14 6 Nov Dec 1991 1240 1250
- “AutoSim Reference Manual 2.5+.” Mechanical Simulation Corporation 709 W. Huron, Ann Arbor, MI 1997