eimolgon/vehicle-dynamics-toolbox

Some vehicle dynamics models

Vehicle Dynamics ToolBox

This repository contains various vehicle dynamics models including a bike stability model, a motorcycle stability model, a quarter car model, and a half car model. Each model is organized in its own directory with accompanying documentation, images, and interactive notebooks.

Index

• Directory Structure
• Models
  • Bike Stability Model
  • Motorcycle Stability Model
  • Quarter Car Model
  • Half Car Model
• Documentation
• Getting Started
• Contributing
• License
• Acknowledgements
• References

Directory Structure

• Bicycle/: Contains the bike stability model code and related files.
• Motorcycle/: Contains the motorcycle stability model code and related files.
• Quarter_car/: Contains the quarter car model code and related files.
• Half_car/: Contains the half car model code and related files.
• Images/: Contains all the images used across the models.
• Docs/: Contains documentation explaining the theory behind each model.

Models

Bike Stability Model

Benchmark for bicycle stability models [1].

Motorcycle Stability Model

This model predicts weave and wobble modes of vibration of the motorcycle. It is a simple model upgraded to include downforce [2].

Quarter Car Model

This model represents a simplified version of a vehicle with one wheel and suspension system. It's useful for analyzing vertical dynamics and ride comfort.

Half Car Model

This model includes two wheels (front and rear) and their respective suspension systems, allowing for more detailed analysis of vehicle dynamics including pitch and bounce motions.

Documentation

The Docs/ directory contains detailed explanations of the theoretical background for each model. This includes derivations of the equations of motion, assumptions made, and any simplifications used.

Getting Started

1. Clone the repository:

   git clone https://github.com/yourusername/vehicle-dynamics-models.git
   cd vehicle-dynamics-models

2. Install the necessary dependencies. It's recommended to use a virtual environment:

   python -m venv venv
   source venv/bin/activate
   pip install -r requirements.txt

3. Explore the models:

   • Navigate to the directory of the model you are interested in.
   • Run the simulation scripts or open the interactive notebooks.

Contributing

Contributions are welcome! Please fork the repository and create a pull request with your changes. Make sure to update the documentation and include any necessary tests.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Acknowledgements

We acknowledge the authors of the theoretical references used to develop these models.

References

• [1] Meijaard, J. P., Papadopoulos, J. M., Ruina, A., & Schwab, A. L. (2007). Linearized dynamics equations for the balance and steer of a bicycle: A benchmark and review.
• [2] Lot, R., & Sadauckas, J.(2021). Motorcycle Design: Vehicle Dynamics, Concepts and Applications. (1st ed.).