System and method for detecting the presence of a moving object below a vehicle
First Claim
1. A wireless charging system for an electric vehicle, the system comprising:
- a vehicle charging pad configured to wirelessly receive power from a base charging pad spaced from the vehicle charging pad; and
a detection apparatus on a surface of the vehicle, the detection apparatus configured to detect existence of a moving object within an exclusion zone underneath the vehicle, the detection apparatus comprising at least one antenna assembly configured to transmit radiation and to receive radiation reflected from material within the exclusion zone, the at least one antenna assembly having a radiation pattern for at least one of the transmitted radiation and the received radiation having a maximum gain and having a first gain intensity along a first line perpendicular to the surface less than half of the maximum gain on a linear scale.
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Accused Products
Abstract
This disclosure provides systems, methods and apparatus for detecting the presence of an object or living being below a vehicle. In one aspect a wireless charging system for an electric vehicle is provided. The system includes a vehicle charging pad configured to wirelessly receive power from a base charging pad spaced from the vehicle charging pad. The system further includes a detection apparatus on a surface of the vehicle. The detection apparatus is configured to detect existence of a moving object within an exclusion zone underneath the vehicle. The detection apparatus includes at least one antenna assembly configured to transmit radiation and to receive radiation reflected from material within the exclusion zone. The at least one antenna assembly has a radiation pattern for at least one of the transmitted radiation and the received radiation, the radiation pattern having a maximum gain and having a first gain along a first line perpendicular to the surface less than half of the maximum gain on a linear scale.
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Citations
37 Claims
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1. A wireless charging system for an electric vehicle, the system comprising:
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a vehicle charging pad configured to wirelessly receive power from a base charging pad spaced from the vehicle charging pad; and a detection apparatus on a surface of the vehicle, the detection apparatus configured to detect existence of a moving object within an exclusion zone underneath the vehicle, the detection apparatus comprising at least one antenna assembly configured to transmit radiation and to receive radiation reflected from material within the exclusion zone, the at least one antenna assembly having a radiation pattern for at least one of the transmitted radiation and the received radiation having a maximum gain and having a first gain intensity along a first line perpendicular to the surface less than half of the maximum gain on a linear scale. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of controlling a wireless charging system of an electric vehicle, the method comprising:
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transmitting energy waves in a pattern in a region below an underside surface of the electric vehicle, the pattern having a maximum gain and having a first gain along a first line perpendicular to the underside surface less than half of the maximum gain on a linear scale; receiving energy waves reflected from material within the region; and analyzing the received energy waves to determine whether the received energy waves are indicative of a moving object within the region. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of controlling a wireless charging system of an electric vehicle, the method comprising:
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transmitting energy waves in a region below an underside surface of the electric vehicle; receiving, in a pattern, energy waves reflected from material within the region, the pattern having a maximum gain and having a first gain along a first line perpendicular to the underside surface less than half of the maximum gain on a linear scale; and analyzing the received energy waves to determine whether the received energy waves are indicative of a moving object within the region. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A wireless charging system for an electric vehicle, the system comprising:
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means for wirelessly transferring power to the electric vehicle; at least one means for receiving electromagnetic radiation; and at least one means for transmitting electromagnetic radiation, at least one of the received electromagnetic radiation and the transmitted electromagnetic radiation having a radiation pattern, the radiation pattern having a maximum gain and having a first gain along a first line perpendicular to the surface less than half of the maximum gain on a linear scale. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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Specification