SIMULATION OF RANDOM EXTERNAL DISTURBANCE ACTING ON THE CAR BODY IN THE URGENT BRAKING MODE
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Abstract
Topicality. When creating ESP (Electronic Stability Program) car stability systems, the main task is to determine the values of the varied parameters of the EBD (Electronic Brake Distribution) electronic block, which ensure the required accuracy of stabilization of the car body in urgent braking mode relative to the given direction of movement. The purpose of the article. To solve the problem of parametric synthesis of the EBD block, it is necessary to create a simulation model of external disturbances acting on the car body from the side of the road surface. Well-known simulation models are created for car movement modes on a random surface with a constant speed. At the same time, random external disturbances are stationary in nature. The urgent braking mode is characterized by an intense decrease in the current speed of the car. Results. The paper proposes a method of constructing a random function of an external disturbance acting on the car body in urgent braking mode. It is proved that this perturbation is non-stationary in nature; the forming dynamic link, the input of which is supplied with single "white noise", and the output of which is an external disturbance, is an oscillating dynamic link, the gain and time constants of which depend on the current value of the car's speed during urgent braking.
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Tavernini, D., Velenis, E. & Longo, S. (2017), “Feedback Brake Distribution Control for Minimum Pitch”, Vehicle Sys-tem Dynamics, Vol. 55, No. 6, pp. 902–923, doi: https://doi.org/10.1080/00423114.2017.1293275
Fugimoto, H. & Narada, S. (2015), ”Model-Based Range Extension Control Systen for Electric Vehicles with Front and Rear Driving-Braking Force Distribution”, Transactions on Industrial Electronics, Vol. 62, No. 5, pp. 3245–3254, doi: https://doi.org/10.1109/TIE.2015.2402634
Gong, X., Qian, L., Ge, W. & Yav, J. (2020), “Research on Electric Brake Force Distribution and Anti-Lock Brake of Vehicle Based on Direct Drive Electro Hydraulic”, Actuator, International Journal of Automobile Engineering, Vol. 11, No. 2, pp.22–29, doi: https://doi.org/10.20485/jsaeijae.11.2_22
Aleksandrov, Ye., Aleksandrova, T. & Morgun, Ya. (2019), “Parametric Synthesis of the Electronic Control Unit of the Course Stability System of the Car”, Eastern-European Journal of Enterprise Technologies, No. 6/9(102), pp. 39–45, doi: https://doi.org/10.15587/1729-4061.2019.188185
Aleksandrov, Ye.Ye, Aleksandrova, T.Ye, & Morgun, Ya.Yu. (2022), “Parametric synthesis of the digital stabilizer of the course stability system of the fuel-filling vehicle”, Problemy keruvannia ta informatyky, No. 2, pp. 69–91 (in Ukrainian), doi: http://doi.org/10.34229/2786-6505-2022-2-5
Turenko, A.N. & Hovorushchenko, N.Ya. (1998), Transport System Engineering, KhHADTU, Kharkiv, 255 p. (in Rus-sian).
Aleksandrov, Ye.Ye., Volontsevych, D.O., Lebedev, A.T. & Turenko, A.N. (2001), Dynamics of transport and traction wheeled and tracked vehicles, KhHADTU, Kharkov, 642 p. (in Russian).
Puhachov, V.S. (1962), Theory of random functions and its application to automatic control tasks, Fizmathiz, Moskva, 864 p. (in Russian).
Venttsel Ye.S. (1964), Theory of probability, Fizmathiz, Moskva, 576 p. (in Russian).
Borisiuk, M.D. & Mazmanishvili, A.S. (2013), “Stochastic evaluation of the ride smoothness of a multi-support vehicle”, Dopovidi NAN Ukrainy, No. 6, pp. 52–59 (in Russian).