Managing electrical current allocation between charging equipment for charging electric vehicles
First Claim
1. A method, comprising:
- determining a maximum amount of electric current supported by a single electrical circuit, wherein a first charging equipment and the second charging equipment are each wired on the single electrical circuit; and
dynamically allocating electric current to the first charging equipment and to the second charging equipment such that the maximum amount of electric current supported by the single electrical circuit is prevented from being exceeded, wherein dynamically allocating electric current to the first charging equipment includes communicating a first current limit to a first electric vehicle connected to the first charging equipment to cause the first electric vehicle to limit its current draw to not exceed the first current limit, and wherein dynamically allocating electric current to the second charging equipment includes communicating a second current limit to a second electric vehicle connected to the second charging equipment to cause the second electric vehicle to limit its current draw to not exceed the second current limit, and wherein a sum of current being drawn at the first current limit and the second current limit does not exceed the maximum amount of electric current supported by the single electrical circuit.
4 Assignments
0 Petitions
Accused Products
Abstract
A first and second charging equipment for charging electric vehicles is wired on a single electrical circuit. Electric current is dynamically allocated to the first and second charging equipment such that the maximum amount of electric current supported by the single electrical circuit is prevented from being exceeded. Dynamically allocating electric current to the first and second charging equipment includes communicating a first and second current limit to a first and second electric vehicle respectively connected to the first and second charging equipment to cause the first and second electric vehicle to limit their current draw to not exceed the first and second current limit respectively. The sum of current being drawn at the first and second current limit does not exceed the maximum amount of electric current supported by the single electrical circuit.
60 Citations
20 Claims
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1. A method, comprising:
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determining a maximum amount of electric current supported by a single electrical circuit, wherein a first charging equipment and the second charging equipment are each wired on the single electrical circuit; and dynamically allocating electric current to the first charging equipment and to the second charging equipment such that the maximum amount of electric current supported by the single electrical circuit is prevented from being exceeded, wherein dynamically allocating electric current to the first charging equipment includes communicating a first current limit to a first electric vehicle connected to the first charging equipment to cause the first electric vehicle to limit its current draw to not exceed the first current limit, and wherein dynamically allocating electric current to the second charging equipment includes communicating a second current limit to a second electric vehicle connected to the second charging equipment to cause the second electric vehicle to limit its current draw to not exceed the second current limit, and wherein a sum of current being drawn at the first current limit and the second current limit does not exceed the maximum amount of electric current supported by the single electrical circuit. - View Dependent Claims (2, 3, 4, 11, 12, 13, 14)
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5. A method comprising:
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receiving, at a circuit sharing controller, a first message that indicates a request for an allocation of electric current through a first charging equipment, wherein the first charging equipment shares a single electrical circuit with a second charging equipment, and wherein the second charging equipment is presently allocated electric current; determining that granting the request would exceed a maximum amount of electric current supported by the single electrical circuit; responsive to that determination, adjusting the electric current allocated to the second charging equipment such that the first charging equipment can be allocated electric current and the maximum amount of electric current supported by the single electrical circuit is not exceeded; and granting the request and allocating electric current to the first charging equipment. - View Dependent Claims (6, 7, 8, 9, 10)
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15. A non-transitory machine readable storage medium that provides instructions that, when executed by a processor, causes said processor to perform operations comprising:
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receiving, at a circuit sharing controller, a first message that indicates a request for an allocation of electric current through a first charging equipment, wherein the first charging equipment shares a single electrical circuit with a second charging equipment, and wherein the second charging equipment is presently allocated electric current; determining that granting the request would exceed a maximum amount of electric current supported by the single electrical circuit; responsive to that determination, adjusting the electric current allocated to the second charging equipment such that the first charging equipment can be allocated electric current and the maximum amount of electric current supported by the single electrical circuit is not exceeded; and granting the request and allocating electric current to the first charging equipment. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification