Methods and systems for charging an electric vehicle
First Claim
Patent Images
1. An electric vehicle charging system comprising:
- a plurality of electric vehicle charging apparatus coupled to, and configured to receive electric power from, a distribution transformer;
a central processing device configured to control operation of said plurality of electric vehicle charging apparatus; and
at least one sensor coupled to said central processing device and configured to provide said central processing device with data, said central processing device further configured to;
determine a present electrical load on the distribution transformer based on the data;
receive a charging request from a first electric vehicle charging apparatus of said plurality of electric vehicle charging apparatus;
determine if providing power to said first electric vehicle charging apparatus will cause the present electrical load on the distribution transformer to exceed a predefined nominal load rating of the distribution transformer;
provide said first electric vehicle charging apparatus with an electric power charging signal if providing power to said first electric vehicle charging apparatus will not cause the present electrical load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer;
compare the present electrical load to a predefined maximum distribution transformer load rating if it is determined that providing power to said first electric vehicle charging apparatus will cause the present electrical load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer;
deny service to said first electric vehicle charging apparatus if it is determined that providing power to said first electric vehicle charging apparatus will cause the present load on the distribution transformer to exceed the predefined maximum distribution transformer load rating; and
place the first electric vehicle charging apparatus in a queue.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric vehicle charging system is described. The electric vehicle charging system includes a plurality of electric vehicle charging apparatus coupled to, and configured to receive electric power from, a distribution transformer. The electric vehicle charging system also includes a central processing device configured to control operation of the plurality of electric vehicle charging apparatus.
11 Citations
12 Claims
-
1. An electric vehicle charging system comprising:
-
a plurality of electric vehicle charging apparatus coupled to, and configured to receive electric power from, a distribution transformer; a central processing device configured to control operation of said plurality of electric vehicle charging apparatus; and at least one sensor coupled to said central processing device and configured to provide said central processing device with data, said central processing device further configured to; determine a present electrical load on the distribution transformer based on the data; receive a charging request from a first electric vehicle charging apparatus of said plurality of electric vehicle charging apparatus; determine if providing power to said first electric vehicle charging apparatus will cause the present electrical load on the distribution transformer to exceed a predefined nominal load rating of the distribution transformer; provide said first electric vehicle charging apparatus with an electric power charging signal if providing power to said first electric vehicle charging apparatus will not cause the present electrical load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer; compare the present electrical load to a predefined maximum distribution transformer load rating if it is determined that providing power to said first electric vehicle charging apparatus will cause the present electrical load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer; deny service to said first electric vehicle charging apparatus if it is determined that providing power to said first electric vehicle charging apparatus will cause the present load on the distribution transformer to exceed the predefined maximum distribution transformer load rating; and place the first electric vehicle charging apparatus in a queue. - View Dependent Claims (2, 3, 4)
-
-
5. An electric vehicle charging system comprising:
-
a plurality of electric vehicle charging apparatus coupled to, and configured to receive electric power from, a distribution transformer; a central processing device configured to control operation of said plurality of electric vehicle charging apparatus; and at least one sensor coupled to said central processing device and configured to provide said central processing device with data, said central processing device further configured to; determine a present electrical load on the distribution transformer based on the data; receive a charging request from a first electric vehicle charging apparatus of said plurality of electric vehicle charging apparatus, said first electric vehicle charging apparatus comprises an input/output device configured to display at least one charging option to a consumer and to receive at least one charging selection from the consumer; determine if providing power to said first electric vehicle charging apparatus will cause the present electrical load on the distribution transformer to exceed a predefined nominal load rating of the distribution transformer; provide said first electric vehicle charging apparatus with an electric power charging signal if providing power to said first electric vehicle charging apparatus will not cause the present electrical load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer; compare the present electrical load to a predefined maximum distribution transformer load rating if it is determined that providing power to said first electric vehicle charging apparatus will cause the present electrical load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer; transmit a charging option signal to said first electric vehicle charging apparatus if it is determined that providing power to said first electric vehicle charging apparatus will not cause the present load on the distribution transformer to exceed the predefined maximum distribution transformer load rating, wherein upon receipt of the charging option signal, said input/output device displays the at least one charging option to the consumer; and receive, from said input/output device, at least one of a charge-delay signal corresponding to a charge-delay selection and a charge-now signal corresponding to a charge-now selection. - View Dependent Claims (6, 7)
-
-
8. A method for controlling charging of an electric vehicle using an electric vehicle charging apparatus coupled to a distribution transformer, said method comprising:
-
determining an electrical load on the distribution transformer; providing the electric vehicle charging apparatus with an electric power charging signal if providing power to the electric vehicle charging apparatus will not cause the electrical load on the distribution transformer to exceed a predefined nominal load rating of the distribution transformer; determining if providing power to the electric vehicle charging apparatus will cause the load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer; comparing the electrical load on the distribution transformer to a predefined maximum distribution transformer load rating if it is determined that providing power to the electric vehicle charging apparatus will cause the load on the distribution transformer to exceed the predefined nominal load rating of the distribution transformer; and denying service to the electric vehicle charging apparatus if it is determined that providing power to the electric vehicle charging apparatus will cause the load on the distribution transformer to exceed the predefined maximum distribution transformer load rating and placing the electric vehicle charging apparatus in a queue. - View Dependent Claims (9, 10, 11, 12)
-
Specification