Base magnetics and sequence design for dynamic systems
First Claim
1. A device for charging an electric vehicle, the device comprising:
- a plurality of charging coils configured to charge the electric vehicle; and
at least one control circuit configured to provide power to each of the plurality of charging coils according to a selected first sequence or a selected second sequence, the first sequence configured to activate each of the plurality of charging coils in a direction of travel of the electric vehicle in a first order and with a first direction of current flow, and the second sequence configured to activate each of the plurality of charging coils in the direction of travel of the electric vehicle with at least one of a second order different from the first order or a second direction of current flow different from the first direction of current flow of the first sequence.
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Accused Products
Abstract
Dynamic wireless charging systems may involve coordinating multiple charging base pads to provide coordinated, continuous power transfers to a moving receiver along the distance in which the dynamic wireless charging system is installed. The layout and design of the charging base pads, the current flow through the charging base pads, and the sequencing of charging base pad activation and current flow implemented may dramatically affect the power transfers and practicality of such dynamic systems. The sequencing and control of these coils may need to be capable of managing the individual coils with minimal infrastructure as well as be capable of distributing the required power from the power grid to these pads efficiently and safely, and may comprise charging base pads, controllers to control the power flow to, activation of, and current flow direction within the base pads.
7 Citations
42 Claims
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1. A device for charging an electric vehicle, the device comprising:
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a plurality of charging coils configured to charge the electric vehicle; and at least one control circuit configured to provide power to each of the plurality of charging coils according to a selected first sequence or a selected second sequence, the first sequence configured to activate each of the plurality of charging coils in a direction of travel of the electric vehicle in a first order and with a first direction of current flow, and the second sequence configured to activate each of the plurality of charging coils in the direction of travel of the electric vehicle with at least one of a second order different from the first order or a second direction of current flow different from the first direction of current flow of the first sequence. - 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 for charging an electric vehicle, the method comprising:
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selecting a first sequence from a plurality of sequences of charging coil activation steps; and activating each of a plurality of charging coils in a direction of travel of the electric vehicle according to a first order and with a first direction of current flow based on the selected first sequence, each of the sequences of the plurality of sequences of charging coil activation steps comprising steps for activating each of the plurality of charging coils with at least one of a different order or a different direction of current flow than the other sequences of charging coil activations steps of the plurality of sequences. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A device for charging an electric vehicle, the device comprising:
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a plurality of means for providing a charge to the electric vehicle; means for selecting a first sequence from a plurality of sequences of means for providing a charge activation steps; and at least one means for providing power to each of the plurality of means for providing a charge according to the selected first sequence of a plurality of sequences of charge providing means activation steps, the first sequence configured to activate each of the plurality of charge providing means in a direction of travel of the electric vehicle in a first order and with a first direction of current flow, each of the sequences of the plurality of sequences of charge providing means comprising activation steps configured to activate each of the plurality of charge providing means in the direction of travel of the electric vehicle with at least one of a different order or a different direction of current flow than the other sequences of charge providing means activations steps of the plurality of sequences. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification