ELECTRIC VEHICLE POWER MANAGEMENT SYSTEMS
First Claim
1. A method for managing power flow using safe failure modes in an electric vehicle charging network, comprising:
- communicating a first charging behavior from a central flow controller to a plurality of electric vehicles;
controlling power flow between each of a plurality of charging stations and their corresponding electric vehicles according to the first charging behavior;
detecting a communications failure mode between the central flow controller and one or more of the plurality of electric vehicles;
controlling, in response to detecting the communications failure mode, power flow between each of a plurality of charging stations and their corresponding electric vehicles according to the second charging behavior during the period of time of the communications failure, wherein the second charging behavior is predictable and non-disruptive to a power circuit supplying power to the plurality of charging stations.
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Accused Products
Abstract
A system that enables power flow management for electrical devices, such as electric vehicles. Power flow managers can coordinate charging activities. Power flow decisions may be based on site-level information. Power flow management strategies may be optimized. Power spikes may be avoided by using safe failure modes. Generation stacks may be used for reducing cost. AGC commands are used to control power resources. Power regulation are apportioned to power resources, and power regulation ranges may be determined. Power flow strategies are implemented in response to changes in intermittent power flow. Locations of devices may be determined using network fingerprints. Power flow measurements are determined, and AC power flows are inferred from DC power flows. Network traffic consumption are minimized. Communication protocols are translated. Enhanced vehicle communications are provided that communicate to vehicle subsystems, that arbitrate smart charge points, and that use existing hardware, non-specific hardware, or control extensibility systems.
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Citations
21 Claims
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1. A method for managing power flow using safe failure modes in an electric vehicle charging network, comprising:
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communicating a first charging behavior from a central flow controller to a plurality of electric vehicles; controlling power flow between each of a plurality of charging stations and their corresponding electric vehicles according to the first charging behavior; detecting a communications failure mode between the central flow controller and one or more of the plurality of electric vehicles; controlling, in response to detecting the communications failure mode, power flow between each of a plurality of charging stations and their corresponding electric vehicles according to the second charging behavior during the period of time of the communications failure, wherein the second charging behavior is predictable and non-disruptive to a power circuit supplying power to the plurality of charging stations. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer program product for managing power flow using safe failure modes in an electric vehicle charging network, comprising:
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a computer usable medium having computer readable program code embodied in the computer usable medium for causing an application program to execute on a computer system, the computer readable program code means comprising; computer readable program code for communicating a first charging behavior from a central flow controller to a plurality of electric vehicles; computer readable program code for controlling power flow between each of a plurality of charging stations and their corresponding electric vehicles according to the first charging behavior; computer readable program code for detecting a communications failure mode between the central flow controller and the plurality of electric vehicles; computer readable program code for controlling, in response to detecting the communications failure mode, power flow between each of a plurality of charging stations and their corresponding electric vehicles according to the second charging behavior during the period of time of the communications failure, wherein the second charging behavior is predictable and non-disruptive to a power circuit supplying power to the plurality of charging stations. - View Dependent Claims (9, 10, 11, 12, 13, 14, 21)
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15. A system for managing power flow using safe failure modes in an electric vehicle charging network, comprising:
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a central power flow controller communicatively coupled to a plurality of electric vehicles, the central power flow controller communicating a first charging behavior to the plurality of electric vehicles, each of the plurality of electric vehicles including; a memory for storing a plurality of charging behaviors from the central flow controller; a processor for controlling power flow between its associated electric vehicle and an associated charging station according to the first charging behavior of the plurality of charging behaviors received from the central flow controller; and a communication interface for detecting a communications failure mode between the central flow controller and the electric vehicle, wherein in response to detecting the communications failure mode, the processor controls power flow between the charging station and the electric vehicle according to the second charging behavior during the period of time of the communications failure, wherein the second charging behavior is predictable and non-disruptive to a power circuit supplying power to the plurality of charging stations. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification