Patent application number | Description | Published |
20110172839 | ELECTRIC VEHICLE SUPPLY EQUIPMENT WITH TIMER - An EVSE system includes an electric vehicle supply circuit, and a timer adapted to automatically control the electric vehicle supply circuit. The timer may be adapted to enable and/or disable the electric vehicle supply circuit at one or more predetermined times. The timer may be coordinated with a scheduling system such as a calendar utility on a computer or portable communication device such as a smart phone. The system may include a user interface for the timer. The user interface may include an embedded server such as an embedded web server to enable a user to program the timer through the Internet. | 07-14-2011 |
20110282509 | OCCUPANCY BASED SWITCHING WITH ADVANCE NOTIFICATION - A system may include an occupancy sensor and an interface to couple the occupancy sensor to equipment that may perform a power reduction operation in response to the occupancy sensor. Another system may include an occupancy sensor and a switch to control power to equipment in response to the occupancy sensor, where an advance notification is sent to the equipment before the switch interrupts power to the equipment. In one embodiment, the switch may interrupt the power after a time delay from when the advance notification is sent. In another embodiment, the switch may not interrupt the power until a response to the advance notification is confirmed. | 11-17-2011 |
20110320056 | ELECTRIC VEHICLE SUPPLY EQUIPMENT WITH METERING AND COMMUNICATONS - An apparatus includes an electric vehicle supply circuit, and a communication interface coupled to the electric vehicle supply circuit. In some embodiments, the apparatus may be adapted to function as a node for a mesh network. In other embodiments, the communication interface may be adapted to communicate with a utility collection point using substantially the same protocol as the utility collection point. In yet other embodiments, the apparatus may be adapted to control the wireless communication interface in response to the state of the electric vehicle supply circuit. | 12-29-2011 |
20120091824 | Electric Vehicle Supply Equipment with Line Fitting Disconnect Sensing - A system includes an electric vehicle supply circuit adapted to supply electric power to an electric vehicle, a line fitting arranged to connect the electric vehicle supply circuit to a source of electric power, and a sensor arranged to detect when the line fitting is being disconnected from the source of electric power. The electric vehicle supply circuit is adapted to interrupt the supply of electric power to the electric vehicle in response to the sensor to interrupt the flow of power through the electric vehicle supply circuit before the line fitting is disconnected from the power source. | 04-19-2012 |
20120206100 | ELECTRIC VEHICLE SUPPLY EQUIPMENT - An electric vehicle supply circuit comprises input wiring including a hot conductor and a neutral conductor to connect the electric vehicle supply circuit to a power source having a hot conductor and a neutral conductor, and a charge circuit interrupting device arranged to disconnect the hot conductor and the neutral conductor if the power source is wired incorrectly. A monitor circuit may operate as a polarity detector if the power source is wired incorrectly, or as a grounding monitor circuit if the power source is wired correctly. Another electric vehicle supply circuit includes a monitor circuit to to detect whether a power source is wired correctly, and an indicator to communicate to a user whether hot and neutral conductors of the power source are wired correctly. | 08-16-2012 |
20120223840 | SMART GRID OVER POWER LINE COMMUNICATION NETWORK - A smart-grid communication system including a plurality of receptacles and a power management gateway in electrical communication with each of the plurality of receptacles is presented. Each of the power modules of the plurality of receptacles provides power usage information to the power management gateway. Also, the power usage information is transmitted via a first communication means to the power management gateway and the power management gateway transmits the information via a second communication means to one or more external communications sources. | 09-06-2012 |
20120286729 | ELECTRIC VEHICLE SUPPLY EQUIPMENT WITH OVER-CURRENT PROTECTION - 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. | 11-15-2012 |
20120306444 | BREAKAWAY DEVICE FOR ELECTRIC VEHICLE SUPPLY EQUIPMENT - In one embodiment, an electric vehicle charging system includes a pilot conductor arranged to disconnect from an electric vehicle supply circuit before a power conductor when a cord disengages from an enclosure under excessive strain. In another embodiment, an electric vehicle charging system includes an enclosure having a breakaway portion. A strain relief engages the cord with the breakaway portion of the enclosure, and the breakaway portion is adapted to disengage from the enclosure when the cord is subjected to excessive strain. | 12-06-2012 |
20140015487 | ELECTRIC VEHICLE SUPPLY EQUIPMENT - Electric vehicle supply equipment includes an enclosure, an electric vehicle supply circuit for providing a flow of current to an electric vehicle, a charge circuit interrupting device, the charge circuit interrupting device arranged to interrupt the flow of current to the electric vehicle, a grounding monitor circuit, the grounding monitor circuit coupled to grounding conductors, the grounding monitor circuit having a grounding output signal, a ground default detection circuit, the ground fault detection circuit coupled to current carrying conductors, the ground fault detection circuit having a fault detection output signal, a controller, the controller coupled to the grounding monitor circuit, the ground fault detection circuit and the charge circuit interrupting device, the controller arranged to control the charge circuit interrupting device, and logic arranged to receive the grounding and fault detection signals and the control signal, and assert a close signal based upon the grounding and fault detection signals. | 01-16-2014 |