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Integrated MATLAB Simulink Lap Simulation

UT25 FSAE Vehicle - Advanced Transient Simulation Framework

Project Overview

Building upon the MATLAB lapsim foundation from the previous year, I led the development of an integrated MATLAB Simulink-based simulation framework that advances from steady-state to transient simulations. Collaborating extensively with powertrain and vehicle dynamics teams, this comprehensive model captures the complex interactions between electrical systems, vehicle dynamics, and thermal management in real-time simulation environments.

Transition to Transient Simulation

The integrated Simulink model represents a paradigm shift from steady-state lap time prediction to comprehensive transient analysis:

  • Real-time simulation of dynamic vehicle behavior during cornering and acceleration
  • Capture of transient thermal effects and component heating/cooling
  • Analysis of electrical system dynamics and power delivery variations
  • Integration of driver control systems and vehicle response feedback
  • Multi-physics coupling between electrical, mechanical, and thermal domains

Powertrain Integration & Architecture

Working closely with the powertrain team, I integrated their existing electrical system models into the simulation framework. While I didn't develop the original battery, inverter, and motor models, I gained deep understanding of their functionality and successfully replicated them for different powertrain architectures:

Powertrain Model Integration

Integrated existing battery, inverter, and motor models into the Simulink framework, understanding their behavior and validation requirements

Architecture Replication

Successfully replicated the powertrain models for DTI and Fischer configurations, adapting them for different electrical architectures

Vehicle Dynamics Integration

Leveraging the track maps developed in previous years, the vehicle dynamics team integrated advanced multi-body simulation:

  • Vi-grade Integration: Professional vehicle dynamics software for detailed suspension and tire modeling
  • Adams Co-simulation: Multi-body dynamics simulation for complex vehicle behavior analysis
  • Track Map Utilization: Applied previously developed 2D track models for accurate path following
  • Real-time Coupling: Seamless integration between Simulink and external dynamics solvers

Thermal Management & Cooling

I integrated thermal analysis using powertrain efficiency calculations:

Efficiency-Based Cooling Loads

Correlated cooling requirements with real-time powertrain efficiency calculations for accurate thermal management

Transient Thermal Analysis

Modeled component heating and cooling during dynamic driving conditions

Driver Models & Control Systems

Implemented advanced driver control algorithms for comprehensive vehicle evaluation:

Stanley Controller Non-linear MPC PID Controllers Path Following Real-time Optimization

Technical Implementation

The integrated framework represents the culmination of cross-disciplinary simulation development:

MATLAB Simulink Vi-grade Integration Adams Co-simulation Real-time Simulation Multi-physics Coupling

Simulation Results & Architecture

The integrated model provides unprecedented insight into vehicle performance:

Current Status & Development

This integrated simulation framework remains actively developed and serves as the primary tool for UTFR's vehicle development:

  • Continuous refinement of model accuracy and correlation with real-world testing
  • Integration of additional sensor models and control system variants
  • Expansion to support autonomous driving algorithm development
  • Serving as foundation for future advanced simulation capabilities
  • Cross-team collaboration platform for integrated vehicle development

Related FSAE Projects

OptimumLap Lap Simulation & Drive Ratio Optimization
OptimumLap Lap Simulation & Drive Ratio Optimization
2023

As drivetrain lead for the UT23 electric FSAE vehicle, advanced the team's simulation capabilities by pioneering comprehensive track mapping and points-based analysis for drive ratio optimization. While not the first to use OptimumLap, established systematic validation of tire models through autocross and endurance testing correlation.

OptimumLapElectric Vehicle DynamicsTrack MappingPoints AnalysisTire Model Validation

Impact: Optimized drive ratios for electric FSAE vehicle across 4 international competitions, improving acceleration and top speed performance through validated simulation models

MATLAB Lap Simulation Development
MATLAB Lap Simulation Development
2024

Led the transition from commercial OptimumLap software to custom MATLAB lapsim framework, collaborating with suspension team to implement TTC tire models and establishing foundation for advanced vehicle dynamics simulation.

MATLAB/SimulinkTTC Tire ModelsVehicle Dynamics FrameworkOpen-Source DevelopmentAdvanced Tire Modeling

Impact: Established foundation for advanced simulation with 5% accuracy improvement through TTC tire model integration and custom MATLAB framework development

2024 Cooling System Design & Thermal Optimization
2024 Cooling System Design & Thermal Optimization
2024

Advanced thermal management optimization using CFD analysis and experimental validation, building on the 2023 foundation with significantly improved routing and component placement to achieve 10% cooling efficiency improvement and 5°C temperature reduction.

CFD AnalysisThermal OptimizationExperimental ValidationANSYSHeat Transfer Engineering

Impact: Achieved 10% cooling efficiency improvement and 5°C motor temperature reduction through CFD-driven design optimization