Autonomous EV Charging Arm

Organization: SRM University, India
Timeline: Sep 2023 – Aug 2024

Overview

Developed an autonomous 6-DOF robotic arm capable of detecting, positioning, and connecting EV chargers automatically.
The system addressed the need for hands-free and precise EV charging, focusing on accessibility and standardization across multiple connector types.

My Role

  • Led the design, modeling, and perception-driven alignment system for the entire arm.

  • Designed a 6-DOF robotic manipulator in SolidWorks optimized for reach and torque balance.

  • Conducted structural and modal analysis using Ansys to validate mechanical robustness and fatigue performance.

  • Implemented vision-based charger detection using YOLOv8 for four port types (Type-1, CHAdeMO, GB-T, Tesla).

Results & Impact

  • Achieved > 92 % docking accuracy across all port types.

  • mAP50 score of 0.993 for Type-1 connector; recall = 100 % for Tesla ports.

  • Demonstrated improved safety and accessibility for autonomous charging applications.

  • Work resulted in a filed Indian patent and an Elsevier Q1 publication (Results in Engineering, Vol. 26, 2025).

Maximum Stress & Deformation in all 6 joints with different material

Comparison of Joint Moments with different Payloads


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