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Automatic and Dynamic Home Electricity Load Balancing for the Purpose of EV Charging

  • US 20110221393A1
  • Filed: 03/14/2011
  • Published: 09/15/2011
  • Est. Priority Date: 03/13/2010
  • Status: Active Grant
First Claim
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1. An electric vehicle charging system, comprising:

  • logic collocated with an electric service panel to monitor a total present electric current consumption value for all electric consumers below a point in the service panel;

    an first input to receive the present electric current consumption value from the logic collocated with the service panel, and to compare the present electric current consumption value with a maximum current capacity value for the service panel;

    a second input to receive electric current from the service panel;

    an output to supply electric charging power to at least one electric vehicle;

    logic to set an electric charging current drawn from the service panel through the second input and provided to the electric vehicle charging output to a value less than a difference between the maximum current capacity for the service panel and a sum of the present electric current consumption value and the current consumption value of a largest expected electric consumer.

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