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US 2017/0361723 A1Published application
Wireless charging system coil alignment
AssigneeFord Global Technologies, LLC
InventorsMohamed ELSHAER, Christopher W. BELL, James A. LATHROP, John Paul GIBEAU
Life of this patent
Estimating the term…
Abstract
A vehicle system includes a controller configured to, responsive to an alignment mode, disable a power rectifier configured to transfer charge between a secondary coil and battery, and enable a precision rectifier to output a voltage responsive to current induced in the secondary coil resulting from current through a corresponding primary coil, and responsive to the voltage exceeding a threshold, enable the power rectifier and disable the precision rectifier.
Claims15
A vehicle system comprising:
- a controller configured to
- responsive to an alignment mode, disable a power rectifier configured to transfer charge between a secondary coil and battery, and enable a precision rectifier to output a voltage responsive to current induced in the secondary coil resulting from current through a corresponding primary coil, and
- responsive to the voltage exceeding a threshold, enable the power rectifier and disable the precision rectifier.
A method for a vehicle comprising:
- responsive to an alignment mode, disabling by a controller a power rectifier configured to transfer charge between a secondary coil and battery, and enabling a precision rectifier to output a voltage responsive to current induced in the secondary coil resulting from current through a corresponding primary coil, and
- responsive to the voltage exceeding a threshold, enabling the power rectifier and disabling the precision rectifier.
A method for a vehicle comprising:
- issuing by a controller commands prompting a change in a position of a secondary coil responsive to a voltage across the secondary coil, generated as a result of circulating no more than 1 ampere of current through a primary coil and output by a precision rectifier, being less than a threshold;
- and
- enabling a power rectifier to transfer charge between the secondary coil and a battery responsive the voltage being above the threshold.
Dependencies are inferred from the claim text.