Vehicle Modeling in Simulink

Overview

As part of the Driver Assistance Systems course at HTWG Konstanz, I implemented a vehicle model in MATLAB/Simulink based on a Mercedes A180.
The goal was to simulate vehicle dynamics under realistic conditions by modeling physical resistances, drivetrain, and driver behavior.
→ Download MATLAB Script (.m)
→ Download Simulink Model (.slx)

The .m file provides the initialization parameters for the vehicle model and is executed before running the Simulink simulation.

The model was developed step-by-step in five modules:

1. Vehicle parameters (mass, aerodynamics, rolling resistance, gear ratios, etc.)
2. Driving resistances (air, rolling, gradient resistance)
3. Dynamic equations for velocity and distance
4. Powertrain model including engine torque maps and gear losses
5. Driver model with PID control and automatic gear shifting via Stateflow

Tools & Environment

• Software: MATLAB R2024b, Simulink
• Toolboxes: Simulink, Stateflow, Control System
• Modeling techniques: block-based modeling, interpolation, subsystem abstraction
• Vehicle reference: Mercedes A180