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Showing 1 to 16 of 16 for “"Tire forces"”.
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Optimal suspension damping and axle vibration absorber for reduction of dynamic tire loads
Variations in the dynamic tire forces of commercial freight vehicles, known to accelerate the road damage, are strongly related to vibration modes of the vehicle associated with vertical and pitch motions of the sprung and unsprung masses. The high levels of tire induced road damage caused by heavy …
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A comprehensive analytical model for pneumatic tires
This study presents a comprehensive analytical tire model for both vehicle dynamic simulation and tire design. The model is composed of two parts--modeling of the contact mechanism and determination of the tire forces/moments. A static circular beam model is introduced for the contact mechanism, in …
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An analytical investigation of passive and active suspension systems for articulated freight vehicles
… to the driver and high magnitudes of dynamic tire forces to the pavements. The high levels of ride vibration and tire forces are attributed to the excessive sizes and weights of these vehicles. The driver health and safety risks posed by ride vibrations, and the significant tire induced road …
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Tire Models for Use in Braking Applications
The tire is a significant part for control of a vehicle. For a well-working brake system the contact properties between the tire and the ground is the limiting factor for a safe braking. To get optimal performance it is important that the system can utilize all friction resources. The brush tire …
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Intelligent Tire Based Tire Force Characterization and its Application in Vehicle Stability and Performance
In any automotive system, the tires play a very crucial role in defining both the safety and performance of the vehicle. The interaction between the tire and the road surface determines the vehicle's ability to accelerate, decelerate and steer. Having information about this interaction in real-time …
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Modeling and performance analysis of ABS systems with nonlinear control
… the slip values are iterated from a nonlinear tire model based on the Magic Formula. Simulations of hard braking and steering maneuvers are conducted using the nonlinear Yaw-plane Four-wheel steering vehicle model with Limited Roll motion (YFLR) incorporating the nonlinear Magic Formula tire …
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A Method for Modeling and Prediction of Ground Vehicle Dynamics and Stability in Autonomous Systems
… filter based estimator is then used to estimate tire forces for use in determining the ground/tire coefficient of friction. Probabilistic techniques are then combined with a combined-slip pneumatic trail based estimator to estimate the coefficient of friction in real-time. This data is then …
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Optimal Vehicle Path Generator Using Optimization Methods
… objective functions; minimum time and maximum tire forces. A three-degree-of freedom vehicle model is used to approximate the handling dynamics of the vehicle. Inputs into the vehicle model are steering angle and longitudinal force at the tire. These two variables approximate two requirements …
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A Hybrid Soft Soil Tire Model (HSSTM) For Vehicle Mobility And Deterministic Performance Analysis In Terramechanics Applications
Accurate and efficient tire models for deformable terrain operations are essential for performing vehicle simulations. Assessment of the forces and moments that occur at the tire-terrain interface, and the effect of the tire motion on properties of the terrain are crucial in understanding the …
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Coupling the effects of rubber aging and wear and studying its effect on motorcycle performance
… the specific consequences of rubber aging on tires and vehicle dynamics remain a relatively underexplored domain. This study delves into the effects of rubber aging on tires and motorcycle dynamics. A Dynamical Mechanical Analysis (DMA) test was performed to study the effect of rubber aging …
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Design and analysis of active aerodynamic control systems for increasing the safety of high-speed road vehicles
… lateral acceleration and tight cornering, the forces and torques due to the interactions between the tire and road may be saturated. Various active safety systems have been proposed and developed to mitigate these concerns but they all work based on the manipulation of tire forces. Thus, the …
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Dynamic analysis of a modern urban bus for assessment of ride quality and dynamic wheel loads
… On the other hand, variations in the dynamic tire forces of such vehicles are known to be a cause for acceleration of road damage and are strongly related to vibration modes of the vehicle associated with vertical and pitch motion of the sprung and unsprung masses. The high levels of tire …
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A Three Dimensional Discretized Tire Model For Soft Soil Applications
… of studies address various aspects related to tire modeling; most are dedicated to the development of tire models for on-road conditions. Such models cover a wide range of resolutions and approaches, as required for specific applications. At one end of the spectrum are the very simple tire …
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Tire Modeling and Friction Estimation
… traction limit set by the friction between the tires and the road can, however, not be overridden. The behavior of tires is, therefore, an important issue since it determines the possibilities to control the vehicle. One essential task for the vehicle control system is to be able to fully …
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Effective Simplified Finite Element Tire Models for Vehicle Dynamics Simulation
… a methodology for modeling a pneumatic bias-ply tire with the finite element method for vehicle dynamics simulation. The tire as a load-carrying member in a vehicle system deserves emphasized formulation especially for the contact patch because its representation of mechanics in the contact patch …
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Experimental Characterization and Modeling of Tire-Ice Interface
Tire parameters play a very important role in tire performance. Depending on the driving conditions for which a given tire is designed, its parameters must be chosen appropriately (e.g., the radius of the tire, the width of the tire, material properties of different sections). Among tire …