Reconfigurable control architectures and algorithms for electric vehicle wireless energy transfer systems
First Claim
1. A method of operating a wireless energy transfer system executed by a control processor of the wireless energy transfer system, the method comprising:
- identifying a priority rank for each of a plurality of system faults, each priority rank representing an execution priority for a corresponding one of the system faults;
monitoring the system for activation of faults, wherein the monitoring comprises;
repeatedly executing a first control loop associated with a first fault having a first priority rank indicative of a high priority fault, the first control loop having an associated first execution time period T1; and
repeatedly executing a second control loop associated with a second fault having a second priority rank indicative of a moderate priority fault, the second control loop having an associated second execution time period T2; and
transmitting a signal to a power source controller in response to detecting that one of the first and second faults is active,wherein T2 is larger than T1 so that during a monitoring time period, the first control loop is executed more frequently than the second control loop; and
wherein the signal is transmitted at a speed corresponding to the priority rank of the active fault.
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Abstract
A control architecture for electric vehicle wireless power transmission systems that may be segmented so that certain essential and/or standardized control circuits, programs, algorithms, and the like, are permanent to the system and so that other non-essential and/or augmentable control circuits, programs, algorithms, and the like, may be reconfigurable and/or customizable by a user of the system. The control architecture may be distributed to various components of the wireless power system so that a combination of local or low-level controls operating at relatively high-speed can protect critical functionality of the system while higher-level and relatively lower speed control loops can be used to control other local and system-wide functionality.
711 Citations
22 Claims
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1. A method of operating a wireless energy transfer system executed by a control processor of the wireless energy transfer system, the method comprising:
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identifying a priority rank for each of a plurality of system faults, each priority rank representing an execution priority for a corresponding one of the system faults; monitoring the system for activation of faults, wherein the monitoring comprises; repeatedly executing a first control loop associated with a first fault having a first priority rank indicative of a high priority fault, the first control loop having an associated first execution time period T1; and repeatedly executing a second control loop associated with a second fault having a second priority rank indicative of a moderate priority fault, the second control loop having an associated second execution time period T2; and transmitting a signal to a power source controller in response to detecting that one of the first and second faults is active, wherein T2 is larger than T1 so that during a monitoring time period, the first control loop is executed more frequently than the second control loop; and wherein the signal is transmitted at a speed corresponding to the priority rank of the active fault. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of operating a wireless energy transfer system, comprising:
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executing first and second groups of control loops on a control processor, wherein the first group of control loops comprises one or more members each associated with a different one of a first group of system faults, and wherein the second group of control loops comprises one or more members each associated with a different one of a second group of system faults; determining whether any members of the first and second groups of system faults are active based on the execution of the first and second groups of control loops; transmitting a control signal to a power source controller when any one or more members of the first and second groups of system faults are active; and adjusting power supplied to a resonator of the system by the power source controller in response to the control signal, wherein each member of the first group of control loops is executed at a speed that is faster than a speed at which each member of the second group of control loops is executed; and wherein the control signal is transmitted at a first speed if a member of the first group of system faults is active, and at a second speed slower than the first speed if a member of the second group of system faults is active. - View Dependent Claims (19, 20, 21, 22)
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Specification