San Diego Gas & Electric Company

San Diego Gas & Electronic Company

Chris Chen

William Vincent Torre

Praneet Kolluru

Gabriel Gavrielides

John C Martin

Ken Yu

Eric S Fan

Terry Mohn

Charles Lyle

Robert Peelle

Benjamin L Colson

Viral Bhalodia

A method and application that utilizes a signal processing algorithm is provided for detecting plug-in electric vehicle charging events through interrogation of smart meter data. The method is a form of non-invasive load monitoring that allows the utility to track plug-in electric vehicle charging events in real time or over extended periods. These parameters are suitably flexible so as to accommodate diverse electric vehicle technologies and a range of electric vehicle owners' charging habits. Application of the method facilitates the integration of electric vehicles into utilities' electrical grids, protection of the utilities' assets, geographic mapping of electric vehicle owners and charging events, managed charging through communication between the utility and the vehicle or owner, managed charging through the offer of time of use rates for electric vehicle owners, and an enabling technology to accompany other Smart Grid functions such as Vehicle-to-Grid distributed energy storage.

Method for detection of plug-in electric vehicle charging via interrogation of smart meter data

This invention is directed to a modularized interface for connecting a plug-in electric vehicle to the energy grid. For use with public or semi-public outlets, the modularized interface comprises a module and a smart socket, where the module is integrated within or capable of being connected to, the vehicle's charging interface. The module is normally disabled, but is enabled only after the end user is authenticated, the smart socket and its associated meter have been identified, and the module and the end user's account with the local utility are validated. The module meters the energy consumption, and, when the module is disconnected from the smart socket, indicating termination of the charging session, the metered data is communicated to the utility for updating the end user's account, and the module is disabled. The module is also capable of use with conventional outlets located, for example, in private residences.

Modularized interface and related method for connecting plug-in electric vehicles to the energy grid

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Carlsbad, CA, United States of America

Chris Chen