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 and configured to output signals having a magnitude indicative of a pressure at the known locations applied by a tire in contact with the tire pad; and
a controller programmed to receive the signals and position a transmit coil for charging a vehicle according to a tire position on the tire pad 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.
12 Citations
16 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 and configured to output signals having a magnitude indicative of a pressure at the known locations applied by a tire in contact with the tire pad; and a controller programmed to receive the signals and position a transmit coil for charging a vehicle according to a tire position on the tire pad 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 and configured to output signals indicative of a pressure applied at each of the known locations by a tire in contact with the pad; and a controller programmed to receive the signals and output, to a charging system, position coordinates of the tire relative to a reference point of the charging system based on the signals. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification