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Electrical circuit sharing for electric vehicle charging stations

  • US 8,013,570 B2
  • Filed: 07/23/2009
  • Issued: 09/06/2011
  • Est. Priority Date: 07/23/2009
  • Status: Active Grant
First Claim
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1. A method for a shared electrical circuit infrastructure for charging electric vehicles, comprising:

  • determining a maximum amount of electric current supported by an electrical circuit that is shared among a plurality of electric vehicle charging stations, wherein the maximum amount of electric current supported by the electrical circuit supports less than a complete utilization of the electric vehicle charging stations; and

    dynamically allocating electric current to at least two of the electric vehicle charging stations based on at least an amount of electric current presently allocated on the electrical circuit such that the maximum amount of electric current supported by the electrical circuit is prevented from being exceeded while permitting each of the electric vehicle charging stations to draw electric current through the electrical circuit for at least some amount of time.

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