Chargepoint, Inc.

Coulomb Technologies, Inc.

Charles R Geber

David Baxter

Carl F Hagenmaier, Jr

Craig T Matsuno

Richard Lowenthal

Darren Chin-Ho Kim

Price B Terzis

Gary A Eldridge

Carl F Hagenmaier

An electric vehicle charging station detects a property of a charging cable connected to the electric vehicle charging station and determines, based on the detected property, an ampere capacity of the charging cable. The electric vehicle charging station automatically sets a maximum amperage output of the electric vehicle charging station to not exceed the determined ampere capacity of the charging cable.

Automatically sensing a type of charging cable and setting maximum amperage output of an electric vehicle charging station accordingly

An apparatus in an electric vehicle for controlling an electric vehicle pilot signal level includes proximity detection circuitry for detecting when a proximity switch in an electric vehicle connector is actuated, and pilot level-control circuitry for signaling an electric vehicle supply equipment coupled with the electric vehicle to remove charging voltage from the electric vehicle connector responsive to the proximity detection circuitry detecting that the proximity switch in the electric vehicle connector is actuated.

Circuit for controlling an electric vehicle pilot signal level for connector disconnect

A safety supervisory module (SSM) of an electric vehicle charging station that controls flow of current from the electric vehicle charging station to an electric vehicle. The SSM includes a set of two or more processors to control operation of a contactor control circuitry of the SSM to open and close a set of contacts of a set of power supply lines to control flow of current from the charging station to an electric vehicle. Each processor independently determines whether an unsafe condition exists and asserts a relay enable signal to the contactor control circuitry only when an unsafe condition does not exist. The contactor control circuitry generates a current to energize a relay to close the set of contacts responsive to the relay enable signal being asserted by each and every processor of the set of processors, and inhibits closure of the set of contacts or opens the set of contacts to prevent electricity from flowing between the charging station and an electric vehicle when any of the set of processors is not asserting the relay enable signal.

Safety supervisory module of an electric vehicle charging station

Growing community of inventors

Los Gatos, CA, United States of America

Charles R Geber