USE OF REFERENCE TIRE PARAMETERS WHEN CALCULATING CONTROL SYSTEMS OF WHEELED VEHICLES
Abstract
Calculation of such operational properties of vehicles as traction dynamics, braking efficiency, stability, controllability and smoothness of the ride, when designing their control systems, which include steering, anti-lock braking system, traction control, dynamic stabilization system, tire pressure regulation system, carried out using geometric parameters of tires. Experimental tire characterization is complex and time consuming. Among the reference data for tires are the outer diameter, static radius, rolling radius, nominal wheel load, nominal tire pressure, fit diameter and profile width. The authors developed a methodology for determining the dynamic radius of the wheel, the normal stiffness of the tire, the length of the contact spot and the internal volume of the tire. These parameters are used to solve problems such as the differential equation of motion, determining the coefficient of rotating masses, determining the equivalent stiffness of the suspension, modeling the stability and controllability properties, calculating the receiver volume for a tire pressure control system. As a result of the study, the ratios of free, static and dynamic radii, the degree of change in pressure in the tire when removing the static load from it, were established for various tire sizes, and the need to take into account the thickness of the tire when calculating its internal volume in a free state and under a static load was justified
About the Authors
Mikhail P. Malinovsky
MADI
Russian Federation
associate professor
Russian Federation
associate professor
Klim V. Bazeev
MADI
Russian Federation
student
Russian Federation
student
Ilya V. Balyasnikov
MADI
Russian Federation
student
Russian Federation
student
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