Patent ID: 8729856

Claim:
A plug assembly operable for connecting a vehicle cordset used to facilitate powering a vehicle charging system to a wall outlet, the plug assembly comprising: a positive connector configured to facilitate carrying current from the wall outlet to the vehicle charging system; a neutral connector configured to facilitate returning current from the vehicle charging system to the wall outlet; a ground connector configured to facilitate connecting the vehicle charging system to earth ground; and a temperature sensor operable to detect a temperature at the wall outlet; wherein the vehicle charging system is operable to control current flow through the positive connector as a function of the temperature; wherein the current flow is controlled according to a schedule where an amount of current flow is decreased in proportion to an increase in the temperature; and wherein the amount of current flow is set by the vehicle charging system to a first level and the schedule specifies: decreasing current flow from the first level to a second level in the event the increase in temperature is greater than a first amount and less than a second amount, and decreasing current flow from the first level to a third level in the event the increase in temperature is greater than the second amount, the third level being less than the second level.