Patent ID: 11865940
Assignee: POWERTREE SERVICES, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 4:
5. In an electric vehicle supply equipment (EVSE) system, a load adaptive EVSE unit, comprising:
an auxiliary controller in bi-directional data communication with a controller module, wherein an EVSE current transformer is connected between the controller module and an output and wherein the controller module transmits a pilot output signal to the output;
wherein a panel current transformer is connected between a panel and the controller module;
wherein the auxiliary controller is configured to measure current load at the panel current transformer and transmit the current load measurements at the panel to the controller module; and
wherein the controller module is configured to compare the current load measurements at the panel current transformer with current load measurements at the EVSE current transformers against a predetermined maximum allowable current of the panel and adjust the pilot output signal to adjust the current at the output, and
wherein the controller module is configured to reduce the pilot output signal to the output if the current load at the panel current transformer is equal to or greater than 95% of the predetermined maximum allowable current of the electric service panel.