Detecting and responding to unexpected electric vehicle charging disconnections
First Claim
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1. A method for preventing electricity from flowing through a charging cord attached to an electric vehicle charging station, comprising:
- establishing a charging session with an electric vehicle including allowing electricity to flow through the charging cord to charge an electricity storage device of the electric vehicle;
detecting a first amount of electricity is flowing through the charging cord over a first amount of time; and
during the charging session and after detecting the first amount of electricity is flowing through the charging cord over the first amount of time, performing the following;
detecting whether the electricity flowing through the charging cord to charge the electricity storage device of the electric vehicle has dropped below a second amount for a second amount of time, andresponsive to detecting that electricity flowing through the charging cord to charge the electricity storage device of the electric vehicle has dropped below the second amount for the second amount of time, preventing electricity from flowing through the charging cord.
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Abstract
An electrical vehicle charging station establishes a charging session with an electric vehicle which includes energizing a power receptacle in the charging station and receiving a charging cord at the power receptacle. While the charging session is established and responsive to detecting that a charging connection between the electric vehicle and the electric vehicle charging station has been unexpectedly disconnected, the power receptacle is de-energized to prevent electricity from flowing through the charging cord.
20 Citations
15 Claims
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1. A method for preventing electricity from flowing through a charging cord attached to an electric vehicle charging station, comprising:
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establishing a charging session with an electric vehicle including allowing electricity to flow through the charging cord to charge an electricity storage device of the electric vehicle; detecting a first amount of electricity is flowing through the charging cord over a first amount of time; and during the charging session and after detecting the first amount of electricity is flowing through the charging cord over the first amount of time, performing the following; detecting whether the electricity flowing through the charging cord to charge the electricity storage device of the electric vehicle has dropped below a second amount for a second amount of time, and responsive to detecting that electricity flowing through the charging cord to charge the electricity storage device of the electric vehicle has dropped below the second amount for the second amount of time, preventing electricity from flowing through the charging cord. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electric vehicle charging station, comprising:
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a charging cord adapted to be attached to an electricity source of the electric vehicle charging station and to be coupled to an electricity storage device of an electric vehicle; an electricity control device to control electricity flowing through the charging cord;
an electricity measuring device coupled to measure electricity flowing through the charging cord; anda charging station controller coupled with the electricity measuring device and the electricity control device, wherein the charging station controller is to perform the following; establish a charging session with the electric vehicle including causing the electricity control device to allow electricity to flow through the charging cord, detect, through use of the electricity measuring device, that a first amount of electricity is flowing through the charging cord over a first amount of time, and during the charging session and after detection of the first amount of electricity is flowing through the charging cord over the first amount of time, cause the electricity control device to prevent electricity from flowing through the charging cord in response to a detection that electricity flowing through the charging cord has dropped below a second amount for a second amount of time. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification