Modeling of the Influence of Operational Parameters on Tire Lateral Dynamics

Area of Science:

• Vehicle Dynamics and Safety Engineering
• Tire Mechanics and Modeling

Background:

• Tire-road interaction is crucial for vehicle safety and active safety systems.
• Accurate tire models are needed to optimize vehicle performance.

Purpose of the Study:

• Investigate the influence of temperature, speed, steering frequency, load, and pressure on lateral tire dynamics.
• Develop models for predicting tire behavior and friction.
• Identify key parameters affecting lateral dynamics.

Main Methods:

• Utilized a specialized tire test bench for precise control and measurement.
• Controlled variables included temperature, longitudinal speed, steering frequency, vertical load, and inflation pressure.
• Measured lateral tire dynamics parameters.

Main Results:

• Developed a model to determine relaxation length based on vertical load and linear speed.
• Proposed a model for estimating representative tread temperature.
• Created a model to predict lateral friction coefficient from tread temperature.
• Identified that some variables have minimal impact on lateral dynamics parameters.

Conclusions:

• The study successfully modeled key aspects of lateral tire dynamics.
• The developed models offer practical applications for active safety systems.
• Understanding parameter influence is vital for accurate tire performance prediction.