US 12,391,136 B2
Macroscopic alignment method for wireless charging of electric vehicle and apparatus and system therefor
Jae Young Lee, Icheon-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Jul. 13, 2022, as Appl. No. 17/863,583.
Claims priority of application No. 10-2021-0188606 (KR), filed on Dec. 27, 2021.
Prior Publication US 2023/0202324 A1, Jun. 29, 2023
Int. Cl. B60L 53/38 (2019.01); B60L 53/37 (2019.01); G01S 17/08 (2006.01); H02J 50/12 (2016.01); H02J 50/90 (2016.01)
CPC B60L 53/38 (2019.02) [B60L 53/37 (2019.02); G01S 17/08 (2013.01); H02J 50/12 (2016.02); H02J 50/90 (2016.02)] 20 Claims
OG exemplary drawing
 
1. An alignment method for wireless charging of an electric vehicle, the method comprising:
identifying presence of a wireless power transmission pad during driving;
estimating a distance to the wireless power transmission pad;
performing a macroscopic alignment procedure according to the distance; and
performing wireless charging based on the macroscopic alignment procedure being completed,
wherein the macroscopic alignment procedure includes sequentially performing longitudinal position estimation at a first distance to the wireless power transmission pad, performing lateral position control at a second distance, shorter than the first distance, to the wireless power transmission pad, performing fine lateral control at a third distance, shorter than the second distance, to the wireless power transmission pad, and performing fine longitudinal control at a fourth distance, shorter than the third distance, to the wireless power transmission pad, and
wherein the second distance and the third distance are dynamically set based on a driving speed of the vehicle and/or a speed limit of a driving lane of the vehicle.