Automatic Self-Locating Transmit Coil for Wireless Vehicle Charging
First Claim
1. A vehicle charging system comprising:
- a tire pad including a plurality of pressure-sensitive sensors arranged at known locations of the tire pad and configured to output signals having a magnitude indicative of a pressure applied by a tire at the known locations; and
at least one controller programmed to receive the signals and control movement of a transmit coil according to a position of the tire on the tire pad that is derived from the signals.
1 Assignment
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Accused Products
Abstract
Electric and plug-in hybrid electric vehicles include a rechargeable traction battery. An automated vehicle charging system is configured to charge the traction battery with minimal operator intervention. The vehicle charging system includes at least one tire pad including a plurality of pressure-sensitive sensors arranged at known locations of the tire pad and outputting signals having a magnitude indicative of a pressure applied by a tire at the known locations. The vehicle charging system also includes at least one controller programmed to receive the signals and control movement of a transmit coil according to a position of the tire on the tire pad that is derived from the signals. The known locations may be generally equally spaced or unevenly spaced across the tire pad. The tire pad may include a tire stop to limit motion of the tire in one direction.
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Citations
20 Claims
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1. A vehicle charging system comprising:
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a tire pad including a plurality of pressure-sensitive sensors arranged at known locations of the tire pad and configured to output signals having a magnitude indicative of a pressure applied by a tire at the known locations; and at least one controller programmed to receive the signals and control movement of a transmit coil according to a position of the tire on the tire pad that is derived from the signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tire position detector comprising:
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a pad having a plurality of sensors arranged at known locations of the pad, wherein each of the sensors is configured to output a signal indicative of a pressure applied by a tire on the pad at each of the known locations; and at least one controller programmed to receive the signals and output a position of the tire on the pad based on the signals. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of positioning a transmit coil comprising:
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receiving, by a controller, signals from a plurality of sensors, wherein the signals are indicative of a pressure applied by a tire at known locations of a pad; outputting, by the controller, a tire position that is derived from at least one of the signals; and positioning the transmit coil according to the tire position. - View Dependent Claims (18, 19, 20)
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Specification