Vehicle Dynamics and Torque Distribution
Introduction In the realm of vehicle dynamics, understanding the impact of torque distribution on acceleration and deceleration is crucial, especially for heavy-duty vehicles like mining trucks and construction equipments. This blog delves into the analysis of torque distribution factors in 4-wheel drive vehicles, focusing on the Caterpillar 797F dump truck as a real-world example. We'll use MATLAB to simulate and analyze these dynamics, incorporating various constraints and cases to optimize performance. Free Body Diagram and Equations To start with, we model the vehicle dynamics using a free body diagram. The diagram includes forces acting on the vehicle and moments about the rear and front axles. The primary equations governing the system are derived from the equilibrium conditions: Here are the equations we derived from the free body diagram: Sum of Forces in the x-direction: ∑ F x = F t r + F t f = M x ¨ This equation represents the sum of tractive forces ( F t r F_{tr} and F ...