US 12,068,616 B2
Method for controlling the inductive charging of a user device and associated charging device for motor vehicle
Amaia Fortes Montilla, Toulouse (FR); and Youri Vassilieff, Toulouse (FR)
Assigned to Continental Automotive GmbH, Hannover (DE)
Appl. No. 17/604,214
Filed by Continental Automotive GmbH, Hannover (DE)
PCT Filed May 14, 2020, PCT No. PCT/EP2020/063544
§ 371(c)(1), (2) Date Oct. 15, 2021,
PCT Pub. No. WO2020/234131, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 1905190 (FR), filed on May 17, 2019.
Prior Publication US 2022/0209582 A1, Jun. 30, 2022
Int. Cl. H01M 10/44 (2006.01); H01M 10/46 (2006.01); H02J 7/00 (2006.01); H02J 50/00 (2016.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H02J 50/60 (2016.01)
CPC H02J 50/12 (2016.02) [H02J 7/00712 (2020.01); H02J 50/005 (2020.01); H02J 50/402 (2020.01); H02J 50/60 (2016.02); H02J 2310/48 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A method for controlling the inductive charging of a portable item of user equipment by a charging device, said charging device comprising a reception surface able to receive the item of user equipment, emitter coils and a magnetic field guide able to direct a magnetic field in a plane parallel to the reception surface, the charging device is equipped in a preliminary step with at least two magnetic antennas, each designed to emit a magnetic field and each designed to partially receive the magnetic field emitted by the other antenna, the method comprising:
a) Simultaneous emission by the two antennas, having a first phase shift at input with respect to one another;
b) Measurement of at least one parameter at the output of the antennas;
c) Storage of the measured parameter;
d) Comparison between the at least one parameter thus measured and a predetermined value;
e) Repetition of the preceding steps for other phase shift values; and
f) Controlling of the charging based on the comparison results.