Calculation of an Average Vehicle’s Sideways Acceleration on Small Roundabouts

Abstract

The calculation of the average sideways acceleration, based on speed and angular velocity on small roundabouts for a vehicle of up to 3.5 t gross vehicle mass, is described in this paper. Calculations of the turning radius are derived from angular velocity and an automatic selection of events, based on the lateral acceleration of the coefficient of variation within a defined time window. The calculation of the turning radius based on speed and angular velocity yields almost identical results to the calculation of the turning radius by the three-point method using GPS coordinates, as described in previous research. This means that the calculation of the turning radius, derived from the speed of GNSS/INS dual-antenna sensor and gyroscope data, yields similar results to those from the computation of the turning radius derived from the coordinates of a GNSS/INS dual-antenna sensor. The research results can be used in the development of sensors to improve road safety.

Impact of the Choice of Available Brake Discs and Brake Pads at Different Prices on Selected Vehicle Features

“…On the other hand, the differences in temperatures while braking were considerable ( Figures 8,10 and 11). In addition to the materials used, the heating intensity of the brake components is also affected by driving characteristics, values reached during longitudinal and transverse accelerations, as well as pressure applied on a wheel, as also seen in the publications [132,133]. The advantage of this publication is that all the measurements that focused on the brake components' temperature were performed under laboratory conditions, i.e., under the same conditions.…”

Design and Test of Hydraulic Driving System for Undercarriage of Paddy Field Weeder

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“…The simulation model of the walking hydraulic system is built in the Advanced Modeling Environment for performing Simulation of engineering systems (AMESim 2021.1) software according to the hydraulic schematic [35][36][37]. A hydraulic control component, a cles such as high-performance racing cars, reaching more than 1.5 m/s 2 [33,34]. The peak lateral acceleration reaches 0.75 m/s 2 during the simulation.…”