Abstract
Active control systems of today’s cars have been used over a vast domain of applications, as they seem to represent a complex compromise between car handling, stability and ride comfort. Finding a balance between these three components is of paramount importance to stability, a well-known prerequisite, directly proportional, for road safety. Active suspension means active control of certain parameters of vehicle suspension and their changes over time in their equilibrium state. The aim is to maintain vehicle stability going round bends. Setting a tolerance for these parameters results in a compromise in ride quality of vehicle carbody. This is usually accomplished by changing the elasticity of the springs in suspension and increasing their elastic constant to hardening. Thus, a minimum tolerance in the rotation of the carbody around the transverse and longitudinal axes can be guaranteed, respectively a reduction of the centrifugal inertial forces as a function of the rotation defined. To solve this problem a dynamic study of a car model is needed, taking into account elasticity of spring suspension and wheel suspensions, dampers and tyre dam** as well as tire-road friction forces. An indicator of this is the variable friction coefficient as a function of the velocity of the contact point.
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The authors would like to thank the Research and Development Sector at the Technical University of Sofia for the financial support.
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Uzunov, H., Karapetkov, S., Dimitrov, L., Dechkova, S., Uzunov, V. (2022). Influence of Active Vehicle Suspension to Maintain Transverse Stability in Bends. In: Rackov, M., Mitrović, R., Čavić, M. (eds) Machine and Industrial Design in Mechanical Engineering. KOD 2021. Mechanisms and Machine Science, vol 109. Springer, Cham. https://doi.org/10.1007/978-3-030-88465-9_41
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