The behavior of the car‘s kinematic parameters in the process of extreme braking is characterized by significant dynamics. The complexity of the processes leads to the appearance of rapid sign-changing changes in its speed and acceleration. If the speed of data sampling is insufficient, the moments of reaching the maximum value of the acceleration, as well as the integral values in certain intervals, can be counted with a significant error. Research related to vehicle motion with emergency braking or acceleration with gear shifting requires high-frequency registration of its instantaneous position. The study defines the requirements for the means of measuring the kinematic parameters in relation to the sampling frequency of the position of the car during transient movements of the vehicles.

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