公开(公告)号：EP4239843A3

公开(公告)日：2023-11-08

申请号：EP23186851.4

申请日：2017-08-23

申请人： LG INNOTEK CO., LTD.

发明人： PARK, Jae Hee

IPC分类号： H02J50/12 ,  H02J50/20 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90

摘要： The present invention relates to a method for detecting foreign material, and an apparatus and a system therefor, and a method for detecting foreign material in a wireless power transmitter, according to one embodiment of the present invention, comprises the steps of: measuring a quality factor value, which corresponds to a reference operation frequency, when an object is sensed; searching for a current peak frequency having a maximum quality factor value within an operation frequency band; receiving, form a wireless power receiver, a foreign material detection state packet including information on a reference peak frequency; correcting the measured quality factor value by using a difference value between the current peak frequency and the reference peak frequency; and determining whether the foreign material exists by comparing the corrected quality factor value with a predetermined quality factor threshold value. Therefore, the present invention has an advantage of enabling foreign material to be more effectively and accurately detected.

公开(公告)号：EP3984112B1

公开(公告)日：2023-11-08

申请号：EP20746370.4

申请日：2020-05-29

发明人： KUZNETSOV, Stephen B.

IPC分类号： H02J3/30 ,  H02P25/062 ,  H02J50/12 ,  B60L53/12 ,  B60L50/52

公开(公告)号：EP4269160A1

公开(公告)日：2023-11-01

申请号：EP21909960.3

申请日：2021-10-29

申请人： DENSO CORPORATION ,  The University of Tokyo ,  BRIDGESTONE CORPORATION

发明人： SUMIYA, Hayato ,  TAKITA, Shimpei ,  UDA, Kazuhiro ,  TAKAHASHI, Eisuke ,  YAMAGUCHI, Nobuhisa ,  FUJIMOTO, Hiroshi ,  SHIMIZU, Osamu ,  WAKAO, Yasumichi ,  KUWAYAMA, Isao

IPC分类号： B60L5/00 ,  H02J50/12 ,  H02J50/50 ,  H02J7/00 ,  B60L53/12 ,  B60M7/00

摘要： A power reception apparatus (250) is installable in a vehicle (200) and configured to receive electric power from a power transmission coil (40) embedded in the ground. The power reception apparatus includes: a relay coil (70) that is arranged on a tired wheel (60), which includes a tire (62) and a wheel (64), and includes a first coil (71) and a second coil (72); a power reception coil (240); and a power reception circuit (230) connected with the power reception coil. The first coil and the second coil are connected with each other by an electrical conductor (73). The first coil is arranged inside the tire. The second coil is arranged at a position such that a distance from a central axis (61) of the tired wheel to the second coil is shorter than a distance from the central axis of the tired wheel to the first coil. The power reception coil is arranged at a position such that when the first coil faces the power transmission coil, the power reception coil faces the second coil.

公开(公告)号：EP3352330B1

公开(公告)日：2023-11-01

申请号：EP16846325.5

申请日：2016-09-06

发明人： NAGAOKA Shiro

IPC分类号： H02J50/12 ,  H02J50/80 ,  H02J7/00 ,  B60L5/00 ,  B60M7/00 ,  H02J7/02

公开(公告)号：EP4266543A1

公开(公告)日：2023-10-25

申请号：EP21906142.1

申请日：2021-10-21

申请人： CANON KABUSHIKI KAISHA

发明人： TACHIWA, Wataru ,  SHICHINO, Takahiro

IPC分类号： H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J7/00

摘要： A power transmission apparatus that wirelessly transmits power to a power reception apparatus, the power transmission apparatus comprises: control means for controlling power transmission; first communication means for performing communication by superimposing a signal onto power that is transmitted; and second communication means for performing communication using a frequency that is different from a frequency used for power transmission. In a case where the control means determines to stop power transmission to the power reception apparatus in a state in which the second communication means and the power reception apparatus are connected based on information transmitted and received between the first communication means and the power reception apparatus, the second communication means performs communication for connecting the second communication means and the power reception apparatus.

公开(公告)号：EP3789598B1

公开(公告)日：2023-10-25

申请号：EP20182212.9

申请日：2020-06-25

发明人： LIU, Shengyi

IPC分类号： F02C7/32 ,  F01D15/10 ,  H02J50/12

公开(公告)号：EP2710707B1

公开(公告)日：2023-10-25

申请号：EP12786583.0

申请日：2012-05-17

发明人： BYUN, Kang-Ho ,  LEE, Kyung-Woo ,  KIM, Yu-Su ,  PARK, Se-Ho ,  YEO, Sung-Ku ,  LEE, Young-Min

IPC分类号： H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H02J7/00

公开(公告)号：EP4236025A3

公开(公告)日：2023-10-11

申请号：EP23178394.5

申请日：2017-08-23

申请人： LG INNOTEK CO., LTD.

发明人： PARK, Jae Hee

IPC分类号： H02J50/12 ,  H02J50/60 ,  H02J50/80 ,  H02J50/40 ,  H02J50/90 ,  H02J50/20

摘要： The present invention relates to a method for detecting foreign material, and an apparatus and a system therefor, and a method for detecting foreign material in a wireless power transmitter, according to one embodiment of the present invention, comprises the steps of: measuring a quality factor value, which corresponds to a reference operation frequency, when an object is sensed; searching for a current peak frequency having a maximum quality factor value within an operation frequency band; receiving, form a wireless power receiver, a foreign material detection state packet including information on a reference peak frequency; correcting the measured quality factor value by using a difference value between the current peak frequency and the reference peak frequency; and determining whether the foreign material exists by comparing the corrected quality factor value with a predetermined quality factor threshold value. Therefore, the present invention has an advantage of enabling foreign material to be more effectively and accurately detected.

公开(公告)号：EP4248545A1

公开(公告)日：2023-09-27

申请号：EP21894203.5

申请日：2021-11-19

申请人： Elssibony, Asaf Manova

发明人： Elssibony, Asaf Manova

IPC分类号： H02J50/05 ,  H02J50/12 ,  H02J50/70

公开(公告)号：EP3706286B1

公开(公告)日：2023-09-20

申请号：EP17930775.6

申请日：2017-10-30

发明人： BUNYA, Jun ,  AKUZAWA, Yoshiyuki ,  MATSUMORI, Hiroshi

IPC分类号： H02J50/12 ,  H02J50/00 ,  H02J50/40