DYNAMIC MODEL DEVELOPMENT AND AUTOMOTIVE DYNAMICS SIMULATION UTILIZING MATLAB/SIMULINK

Abstract

Automobiles are recognized as the primary mode of transportation in developed countries, driving increasing demand for vehicles
that meet user needs. As a result, significant time and resources have been dedicated to research and advancements in automobile manufacturing. In this study, a dynamic model of an automobile was developed using MATLAB/Simulink. The vehicle’s technical specifications were incorporated into the model to enable simulations. Simulations were performed with the vehicle operating on
three different road types, under three wind levels, varying overload conditions, and road gradients. The results showed that the dynamic characteristics of the 2020 Toyota Innova 2.0G varied based on speed across three road types: dry asphalt, wet asphalt, and snow-covered roads. Wind speed conditions were found to reduce speed by 4.3% at wind level two and 12.9% at wind level four compared to calm conditions. Overloading was observed to affect the drivetrain and chassis systems, with torque at the driven wheels increasing proportionally to the overload level. During uphill driving, engine power overload occurred during gear shifts at lower transmission ratios, requiring adjustments to the automatic transmission to maintain the appropriate gear position, despite the optimal speed thresholds for shifting. This dynamic automobile model, developed using MATLAB/Simulink, serves as a foundation for
further automotive dynamics research. Technical parameters can be modified to match specific input conditions, facilitating the evaluation of dynamic improvements in vehicle design and manufacturing processes. This approach significantly reduces the time and resources needed for research efforts.