US 11,938,830 B2
Wireless power antenna alignment adjustment system for vehicles
Hans Peter Widmer, Wohlenschwil (CH); Nigel P. Cook, El Cajon, CA (US); and Lukas Sieber, Olten (CH)
Assigned to WiTricity Corporation, Watertown, MA (US)
Filed by WiTricity Corporation, Watertown, MA (US)
Filed on Jan. 24, 2022, as Appl. No. 17/582,651.
Application 16/427,139 is a division of application No. 13/082,229, filed on Apr. 7, 2011, granted, now 10,343,535, issued on Jul. 9, 2019.
Application 17/582,651 is a continuation of application No. 16/897,644, filed on Jun. 10, 2020, abandoned.
Application 16/897,644 is a continuation of application No. 16/427,139, filed on May 30, 2019, granted, now 11,491,882.
Claims priority of provisional application 61/322,196, filed on Apr. 8, 2010.
Claims priority of provisional application 61/322,214, filed on Apr. 8, 2010.
Claims priority of provisional application 61/322,221, filed on Apr. 8, 2010.
Prior Publication US 2022/0144106 A1, May 12, 2022
Int. Cl. H02J 7/00 (2006.01); B60L 3/00 (2019.01); B60L 3/04 (2006.01); B60L 53/10 (2019.01); B60L 53/12 (2019.01); B60L 53/126 (2019.01); B60L 53/22 (2019.01); B60L 53/30 (2019.01); B60L 53/37 (2019.01); B60L 53/38 (2019.01); B60L 53/66 (2019.01); B60L 53/68 (2019.01)
CPC B60L 53/11 (2019.02) [B60L 3/0069 (2013.01); B60L 3/04 (2013.01); B60L 53/12 (2019.02); B60L 53/126 (2019.02); B60L 53/22 (2019.02); B60L 53/30 (2019.02); B60L 53/37 (2019.02); B60L 53/38 (2019.02); B60L 53/66 (2019.02); B60L 53/68 (2019.02); B60L 2200/26 (2013.01); B60L 2210/30 (2013.01); B60L 2210/40 (2013.01); B60L 2270/147 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/72 (2013.01); Y02T 90/12 (2013.01); Y02T 90/14 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An apparatus for determining a position of a vehicle-based wireless power transfer device relative to a ground-based wireless power transfer device, the apparatus comprising:
a transmitter configured to transmit a wide-band signal suitable for providing a specified position resolution; and
a plurality of receivers, each configured to receive the wide-band signal and to measure a relative time of arrival of the wide-band signal at the receiver;
a processor configured to:
determine the position of the vehicle-mounted wireless power transfer device relative to the ground-based wireless power transfer device based on the relative time of arrival as measured by each of the plurality of receivers.