Electric vehicle supply equipment export function inhibition
AssigneeFord Global Technologies, LLC
InventorsRichard Mo, Timothy Harris, Christopher Bernard Trombetta
Life of this patent
Estimating the term…
Abstract
Electric vehicle supply equipment (EVSE) includes an enclosure with internal circuitry comprising ground and power line assemblies terminating in busbars, a power cord with a vehicle coupler, and a ground monitoring impedance circuit. The circuitry is designed to de-energize the system automatically if the enclosure is removed from a building’s mounting pan while the busbars are energized. The ground monitoring impedance circuit detects faults and triggers switches to open when impedance thresholds are exceeded. Additionally, the EVSE supports bidirectional energy flow between the vehicle and the power grid.
Claims15
Electric vehicle supply equipment comprising:
- an electric vehicle supply equipment enclosure having circuitry therein including a ground line assembly and power line assemblies, the ground and power line assemblies each terminating with a busbar, the power line assemblies configured to, as a result of the electric vehicle supply equipment enclosure being removed from a mounting pan of a building while the busbars of the power line assemblies are energized by a vehicle, de-energize the busbars of the power line assemblies.
Electric vehicle supply equipment comprising:
- a power cord terminating with a coupler configured to be plugged into a vehicle;
- an enclosure;
- and
- circuitry disposed within the enclosure and including a plurality of busbars each configured to be electrically connected with a power line or ground line of a power grid, one or more switches electrically connected between the power cord and at least some of the busbars, and a ground monitoring impedance circuit configured to cause the one or more switches to open responsive to an impedance of the ground line being greater than a threshold.
Electric vehicle supply equipment comprising:
- a power cord terminating with a coupler configured to be plugged into a vehicle;
- and
- circuitry disposed within an enclosure and including a plurality of busbars each configured to be electrically connected with a power line or ground line of a power grid, one or more switches electrically connected between the power cord and at least some of the busbars, and a ground monitoring impedance circuit configured to set a ground monitoring impedance circuit fault when an impedance of the ground line is greater than a first threshold and cause the one or more switches to open responsive to an impedance of the ground line being greater than a second threshold.
Dependencies are inferred from the claim text.