Evaluation of Control Pilot Signal Performance in EVSE Through Simulation and Dummy Load Testing

Abstract

This research focuses on analyzing the performance of the Control Pilot (CP) system on electric vehicle supply equipment (EVSE)
through simulation and physical testing. The goal is to ensure the reliability of communication between EVSEs and electric vehicles
(EVs). Using simulations on the Falstad Circuit Simulator, the study successfully showed that the CP system can recognize and
respond to charging operational conditions with high accuracy, from condition A (not connected) to condition D (Requires
ventilation) with a measurable error percentage in the range (0.8%-6.83%). However, the most crucial findings emerged from
physical tests using dummy weights. Although the simulation was successful, real testing on Condition D (requiring ventilation)
actually showed a communication failure. EVSE displays an "ERROR" message and stops charging. This failure highlights that
under certain conditions, inaccurate communication can trigger the EVSE security system to cut off power. This indicates that there
is a significant difference between the simulation results and operational reality, which is the main contribution of this research.