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Electric vehicle docking connector with embedded EVSE controller

  • US 9,308,825 B2
  • Filed: 01/18/2012
  • Issued: 04/12/2016
  • Est. Priority Date: 01/19/2011
  • Status: Active Grant
First Claim
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1. An electric vehicle supply equipment (EVSE) kit for charging an electric vehicle through a charging port of the electric vehicle, comprising:

  • a docking connector comprising;

    a head having a head end engagable with the charging port of the electric vehicle;

    a barrel comprising a barrel docking end and a barrel cable end, said barrel docking end attached to said head;

    a first plurality of conductors extending into said barrel from said barrel cable end and a second plurality of conductors extending into said head from said head end;

    an embedded EVSE controller inside said docking connector connected between said first and second pluralities of conductors; and

    wherein the EVSE controller is configured to;

    monitor a sensed utility supply voltage;

    determine whether the sensed utility voltage is closer to a first level or a second level;

    establish an allowable voltage range based upon which level is determined for the sensed utility voltage;

    set a maximum current limit in accordance with the allowable voltage range based upon a predetermined correlation;

    adjust a control pilot pulse duty cycle to a level corresponding the maximum current limit;

    monitor a current flow and the sensed utility voltage;

    generate a fault alarm and trouble code if the current flow is above the maximum current limit; and

    generate a fault alarm and trouble code if the sensed voltage utility voltage deviates outside the allowable range.

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