Powertrain Modeling - Raptee Energy

Model-based design and control of electric motorcycle drivetrain

During my internship at Raptee Energy, I focused on developing a high-fidelity powertrain model for their flagship electric motorcycle platform. The goal was to design and validate control strategies that deliver both high performance and energy efficiency.

This involved simulation-driven development using MATLAB/Simulink, with emphasis on validating the model over standardized drive cycles and integrating the control logic into vehicle prototypes.

Key Contributions:

  • Dynamic Powertrain Modeling: Developed a MATLAB/Simulink model of the motor, controller, throttle logic, and drivetrain, capturing both transient and steady-state behavior.
  • WLTC-based Validation: Calibrated the powertrain model using data from the Worldwide Harmonized Light Vehicles Test Cycle (WLTC) to ensure real-world relevance.
  • Control Logic Design: Implemented energy-conscious throttle control and drivetrain logic for different rider modes (Eco, Sport), balancing performance and range.
  • Simulation to Integration: Conducted Model-in-the-Loop (MiL) testing to verify algorithms before hardware deployment, improving tuning cycle time and confidence in real-time response.

Left: Concept render of Raptee's electric motorcycle. Right: Rear view highlighting compact drivetrain packaging.

This project gave me a solid foundation in model-based development, with exposure to real-world EV control challenges, simulation validation techniques, and embedded system integration.