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US 10,850,627 B2Granted
Electric vehicle charging system
AssigneeCyberSwitchingPatents, LLC
InventorsCharles H. Reynolds, Ronald L. Silorio
Life of this patent
Estimating the term…
Abstract
An electric vehicle (EV) charging system includes a number of output connections (e.g., cables). Each of the output connections is connected to at least one head, and each head can be connected concurrently to an EV. A controller can direct a charging current, delivered over a dedicated circuit from an electric power supply, to a first one of the output connections if a first EV is connected to a head connected to the first one of the output connections. Then, the charging current to the first one of the output connections can be stopped, switched to a second one of the output connections, and restarted if a second EV is connected to a head connected to the second one of the output connections.
Claims12
An electric vehicle (EV) charging system, comprising:
- a controller comprising a central processing unit and implemented on a single printed circuit board, the printed circuit board having a lower voltage side that powers the central processing unit (CPU), the printed circuit board also having a higher voltage side that receives an alternating current (AC) charging current delivered over a dedicated circuit from an AC power supply, wherein the CPU receives power from a lower voltage power supply that is separate from the AC power supply and that is not powered by the AC power supply, and wherein a voltage from the lower voltage power supply is less than a voltage from the AC power supply;
- and
- a plurality of output connections coupled to the controller, wherein each of the output connections is couplable to at least one head of a plurality of heads that are connectable to EVs, and wherein the output connections are numbered in sequence from one to N, where N is an integer;
- wherein the controller directs the AC charging current from the higher voltage side of the printed circuit board to a first one of the output connections if a first EV is connected to a head coupled to the first one of the output connections, wherein further the charging current to the first one of the output connections is subsequently stopped, switched to a second one of the output connections, and restarted if a second EV is connected to a head coupled to the second one of the output connections, wherein the charging current is directed to the output connections in round-robin fashion one at a time in the sequence from one to N then back to one when multiple EVs are concurrently connected to the output connections, wherein the charging current is directed to the first one of the output connections until a programmed length of a first interval of time expires, and wherein further the charging current is then stopped, restarted, and directed to the second one of the output connections until a programmed length of a second interval of time expires.
1 more element
A controller for an electric vehicle (EV) charging system, the controller comprising:
- a processor, wherein the controller is implemented on a single printed circuit board having a lower voltage side that powers the processor, wherein the printed circuit board also has a higher voltage side that receives an alternating current (AC) charging current delivered over a dedicated circuit from an AC power supply, wherein the processor receives power from a lower voltage power supply that is separate from the AC power supply and that is not powered by the AC power supply, and wherein a voltage from the lower voltage power supply is less than a voltage from the AC power supply;
- and
- a plurality of channels coupled to the processor, wherein each of the channels is couplable to at least one head of a plurality of heads that are concurrently connectable to EVs, and wherein the channels are numbered in sequence from one to N, where N is an integer;
- wherein the controller directs the AC charging current from the higher voltage side of the printed circuit board to only one of the channels at a time if multiple EVs are concurrently connected to the heads, wherein a charging current is provided to a first one of the channels, the charging current to the first one of the channels is then turned off, and a charging current is then provided to a second one of the channels in accordance with a charging procedure;
- wherein the controller is operable for providing a charging current to each of the channels one channel at a time in round-robin fashion in the sequence from one to N then back to one and independent of when an EV is coupled to a channel, for providing the charging current to the first one of the channels until a programmed length of a first interval of time, for turning off the charging current to the first one of the channels when the first interval of time expires, and for then providing the charging current to the second one of the channels until a programmed length of a second interval of time expires, in accordance with the charging procedure.
2 more elements
Dependencies are inferred from the claim text.