ELECTRIC VEHICLE SUPPLY EQUIPMENT WITH OVER-CURRENT PROTECTION
First Claim
1. An electric vehicle supply circuit comprising:
- a charge circuit interrupting device to interrupt a flow of power from a power source to an electric vehicle;
a controller coupled to the charge circuit interrupting device, where the controller is constructed and arranged to control the charge circuit interrupting device in response to a control pilot signal from the electric vehicle; and
an overcurrent protection circuit constructed and arranged to prevent excessive current from flowing to the electric vehicle.
1 Assignment
0 Petitions
Accused Products
Abstract
An EVSE system includes an electric vehicle supply circuit having overcurrent protection circuit to prevent excessive current from flowing to the electric vehicle. A current limit may be set by a manufacturer of the EVSE, by a user of the EVSE, by an electric utility, by the EVSE itself in response to a control pilot signal, etc. The current limit may be set to prevent tripping an overcurrent protection device on a branch circuit for the EVSE, to accommodate one or more parameters of an electric vehicle charging facility, etc. The overcurrent protection feature may be integrated into a controller for the electric vehicle supply circuit, or it may be operate independently of the controller.
-
Citations
22 Claims
-
1. An electric vehicle supply circuit comprising:
-
a charge circuit interrupting device to interrupt a flow of power from a power source to an electric vehicle; a controller coupled to the charge circuit interrupting device, where the controller is constructed and arranged to control the charge circuit interrupting device in response to a control pilot signal from the electric vehicle; and an overcurrent protection circuit constructed and arranged to prevent excessive current from flowing to the electric vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method comprising:
-
supplying electric power to an electric vehicle through an electric vehicle supply circuit that is fed by a branch circuit; monitoring the current flowing to the vehicle through the electric vehicle supply circuit; preventing excessive current from flowing to the electric vehicle by interrupting the flow of power to the electric vehicle if the current flowing to the vehicle exceeds a limit; and setting the limit to prevent the electric vehicle supply circuit from tripping an overcurrent protection device on the branch circuit. - View Dependent Claims (16, 17, 18)
-
-
19. A system comprising:
-
an electric vehicle supply circuit having an overcurrent protection feature to interrupt the flow of power from a power source to an electric vehicle if the current flowing to the electric vehicle exceeds a limit; and an interface to input the limit to the electric vehicle supply circuit. - View Dependent Claims (20, 21, 22)
-
Specification