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Plug-in electric vehicle supply equipment

  • US 8,860,366 B2
  • Filed: 05/03/2010
  • Issued: 10/14/2014
  • Est. Priority Date: 07/28/2009
  • Status: Active Grant
First Claim
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1. An apparatus for connecting an electric vehicle to an electrical socket and for selectively receiving and delivering either level I voltage or level II voltage, comprising:

  • a first socket connector configured to couple with the electrical socket providing either level I voltage or level II voltage;

    a power conduit having a first end connected to the first socket connector and configured to convey a voltage from the electrical socket to the electric vehicle, the power conduit configured to deliver either the level I voltage or the level II voltage;

    a relay placed inline with the power conduit and configured to control voltage along the power conduit;

    a control circuit connected to the power conduit and configured to generate signals corresponding to the voltage along the power conduit, wherein the signals indicate whether the voltage is the level I voltage or the level II voltage;

    a switch connected to the power conduit and the relay, the switch being configured to be controlled by the control circuit in order to provide the level I or the level II voltage to the electric vehicle depending on whether the control circuit indicates the voltage is the level I voltage or the level II voltage;

    a vehicle connector connected to a second end of the power conduit and configured to connect to the electric vehicle to provide one of the level I voltage and the level II voltage;

    a processor connected to the control circuit and configured to receive signals from and send signals to the control circuit;

    a voltage monitor connected to the processor; and

    a display connected to the processor,wherein the level I voltage comprises a nominal 120 Volts A/C and the level II voltage comprises a nominal 240 Volts A/C.

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