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31. 发明申请

WO2020003314A1 ENHANCED METHOD FOR FOREIGN OBJECTS DETECTION 审中-公开
公开(公告)号：WO2020003314A1
公开(公告)日：2020-01-02
申请号：PCT/IL2019/050711
申请日：2019-06-26
申请人： POWERMAT TECHNOLOGIES LTD.
发明人： SHERMAN, Itay , MACH, Elieser
IPC分类号： H04B10/079 , H02J50/60 , H04B17/21
摘要： According to a one aspect of the present disclosure, a method of determining a calibrated signal strength factor is provided for an enhanced method of foreign object detection, by a receiver positioned on top of a transmitter, the method of determining a calibrated signal strength factor comprising: measuring a first signal strength resulting from a digital ping initiated by the transmitter at a first position, wherein the first position is a best coupling position; determining a first Q-factor for the first position, wherein the first Q-factor is a reported Q-factor; measuring a second signal strength resulting from another digital ping initiated by the transmitter at a second position; determining a second Q-factor for the second position; determining a calibrated signal strength factor based on, the first signal strength the second signal strength the first Q-factor and the second Q-factor. According to another aspect of the present disclosed subject matter an enhanced method of foreign object detection, by the receiver positioned on top of a transmitter, the method comprising: measuring a signal strength resulting from a digital ping initiated by the transmitter; determining a calibrated signal strength value by normalizing the signal strength with calibrated signal strength factor; and communicating values of the calibrated signal strength and the reported Q-factor to the transmitter, wherein the transmitter performs foreign object detection based the values.

32. 发明申请

WO2019219208A1 FOREIGN OBJECT DETECTOR, WIRELESS POWER TRANSMISSION SYSTEM COMPRISING A FOREIGN OBJECT DETECTOR AND METHOD OF DETECTING A FOREIGN OBJECT 审中-公开
公开(公告)号：WO2019219208A1
公开(公告)日：2019-11-21
申请号：PCT/EP2018/063120
申请日：2018-05-18
申请人： TDK CORPORATION
发明人： TEJEDA, Abiezer , HEMPHILL, Hugh
IPC分类号： G01V3/10 , H02J50/60
摘要： A foreign object detector, e.g. to be used together with a wireless power transmission system, is provided. The detector signals a polygon shaped sensing coil and an evaluation circuit. A voltage induced in the sensing coil has a linear dependence on the current in the transmission coil of the wireless power transmission system.

33. 发明申请

WO2019206866A1 VORRICHTUNG UND VERFAHREN ZUR FUNKTIONSPRÜFUNG EINES ANTENNENSYSTEMS 审中-公开
公开(公告)号：WO2019206866A1
公开(公告)日：2019-10-31
申请号：PCT/EP2019/060300
申请日：2019-04-23
申请人： CPT GROUP GMBH
发明人： HAGGENMILLER, Christoph , SCHROD, Walter
IPC分类号： H02J50/10 , H02J50/20 , H02J50/60 , G01R31/00 , H04B7/08 , H04B17/29 , H04B1/04 , H04B17/17
摘要： Die Erfindung betrifft eine Vorrichtung zur Funktionsprüfung eines Antennensystems, insbesondere zur Fremdmetallerkennung, die umfasst: ein Antennensystem mit einer Mehrzahl von Antenneneinheiten (AE0,..., AE15), wobei jede der eine Antenne (A0,..., A15) und zumindest einen Widerstand (R0,..., R15) umfassenden Antenneneinheiten (AE0,..., AE15) jeweils zwischen einem, mit einer Vorspannung (Vofst) beaufschlagten Knoten (K) und einem zugeordneten Eingang einer Selektionseinheit (SE) verschaltet ist; eine Recheneinheit (CU), die dazu ausgebildet ist, an einem ersten Ausgang (CUO1) ein Steuersignal (CTRL_MUX_I, CTRL_MUX_II) für die Selektionseinheit (SE) bereitzustellen, wobei durch das Steuersignal festgelegt ist, welcher Eingang der Selektionseinheit (SE) mit einem Ausgang (SEO) der Selektionseinheit (SE) zu verbinden ist, und an einem Eingang (CUI1) der Recheneinheit (CU) das an dem Ausgang (SEO) der Selektionseinheit (SE) anliegende Antennensignal zu empfangen; eine zwischen dem Ausgang (SEO) der Selektionseinheit (SE) und einem Diagnosespannungsanschluss verschaltete und durch die Recheneinheit (CU) ansteuerbare Diagnoseschaltung (DC), wobei an dem Diagnosespannungsanschluss eine Diagnosespannung (Vaux) anliegt. Die Recheneinheit (CU) ist dazu ausgebildet, aus dem Vergleich von bei aktivierter und nicht aktivierter Diagnoseschaltung ermittelten Antennensignalen an dem Ausgang (SEO) der Selektionseinheit (SE) auf einen Fehler des Antennensystems zu schließen.

34. 发明申请

WO2019204379A1 DEVICE, SYSTEM AND METHOD FOR DETECTION OF A FOREIGN OBJECT 审中-公开
公开(公告)号：WO2019204379A1
公开(公告)日：2019-10-24
申请号：PCT/US2019/027789
申请日：2019-04-17
申请人： GENERAL ELECTRIC COMPANY
发明人： KABAJASABAU, Viswanathan , ARAVIND, Deepak , BHAT, Suma Memana Narayana , BOHORI, Adnan Kutubuddin
IPC分类号： H02J50/60 , B60L53/124 , G01V3/10
摘要： A detection device (100) includes a detection mat (102) having a plurality of detection coils (106), and at least one pair of groups of detection coils (106), the pair of groups of detection coils (106) includes first and second groups of detection coils (106). The first and second group of detection coils (106) comprises first and second first and second impedance values. The detection device (100) includes one or more drive sub-systems (112) and a comparison sub-system (112). The drive sub-systems (112) are operatively coupled to the detection mat (102) and configured to excite at least one pair of groups of detection coils (106). The comparison sub-system (114) is operatively coupled to the detection mat (102) and configured to receive a differential current signal from the pair of groups of detection coils (106), the comparison sub-system (114) is configured to generate a control signal based on the differential current signal.

35. 发明申请

WO2019204376A1 DEVICE AND METHOD FOR DETECTING A FOREIGN OBJECT IN A WIRELESS POWER TRANSFER SYSTEM 审中-公开
公开(公告)号：WO2019204376A1
公开(公告)日：2019-10-24
申请号：PCT/US2019/027786
申请日：2019-04-17
申请人： GENERAL ELECTRIC COMPANY
发明人： BHAT, Suma Memana Narayana , ARAVIND, Deepak , KANAKASABAI, Viswanathan , VIJAYAN, Pradeep , BOHORI, Adnan Kutubuddin
IPC分类号： B60L53/124 , B60L53/122 , H02J50/60
摘要： A device for detecting a foreign object (112) in a WPT system is disclosed. The device includes an injection unit (122) to receive a DC power signal and generate a first AC power signal having a first frequency. Also, the device includes an array of coils (120) to receive the first AC power signal having the first frequency and generate a first electromagnetic field at the first frequency. Further, the device includes a detection unit (124) to measure a parameter of at least one of the DC power signal received by the injection unit (122) and the first AC power signal generated by the injection unit (122), and detect the foreign object (112) within the first electromagnetic field based on a change in the parameter of at least one of the DC power signal and the first AC power signal across at least one of the array of coils (120).

36. 发明申请

WO2019152496A8 SYSTEMS AND METHODS DETECTING WIRELESS POWER RECEIVERS AND OTHER OBJECTS AT A NEAR-FIELD CHARGING PAD 审中-公开
公开(公告)号：WO2019152496A8
公开(公告)日：2019-08-08
申请号：PCT/US2019/015820
申请日：2019-01-30
申请人： ENERGOUS CORPORATION
发明人： JOHNSTON, Cesar , JAIN, Deepak , HEINKE, Erik , HOSSEINI, Alister , NICOLSON, Sean
IPC分类号： H02J50/60
摘要： An example method is performed at a near-field charging pad that includes a wireless communication component, and a plurality of power-transfer zones that each respectively include at least one power-transferring element and a signature-signal receiving circuit. The method includes: sending, by a respective power-transferring element included in a first power-transfer zone of the plurality of power-transfer zones, test power transmission signals with first values for a set of transmission characteristics. The method also includes: in conjunction with sending each of the power transmission signals: detecting, using the signature-signal receiving circuit, respective amounts of reflected power at the first power-transfer zone. The method further includes: based on the respective amounts of reflected power, determining whether (i) an authorized wireless power receiver and/or (ii) an object other than a wireless power receiver is present on a surface of the charging pad that is adjacent the first power-transfer zone.

37. 发明申请

WO2019152496A1 SYSTEMS AND METHODS DETECTING WIRELESS POWER RECEIVERS AND OTHER OBJECTS AT A NEAR-FIELD CHARGING PAD 审中-公开
公开(公告)号：WO2019152496A1
公开(公告)日：2019-08-08
申请号：PCT/US2019/015820
申请日：2019-01-30
申请人： ENERGOUS CORPORATION
发明人： JOHNSTON, Cesar , JAIN, Deepak , HEINKE, Erik , HOSSEINI, Alister , NICOLSON, Sean
IPC分类号： H02J50/60
摘要： An example method is performed at a near-field charging pad that includes a wireless communication component, and a plurality of power-transfer zones that each respectively include at least one power-transferring element and a signature-signal receiving circuit. The method includes: sending, by a respective power-transferring element included in a first power-transfer zone of the plurality of power-transfer zones, test power transmission signals with first values for a set of transmission characteristics. The method also includes: in conjunction with sending each of the power transmission signals: detecting, using the signature-signal receiving circuit, respective amounts of reflected power at the first power-transfer zone. The method further includes: based on the respective amounts of reflected power, determining whether (i) an authorized wireless power receiver and/or (ii) an object other than a wireless power receiver is present on a surface of the charging pad that is adjacent the first power-transfer zone.

38. 发明申请

WO2019088487A3 무선전력 송신장치, 무선전력 수신장치 및 무선전력 전송 시스템 审中-公开
公开(公告)号：WO2019088487A3
公开(公告)日：2019-05-09
申请号：PCT/KR2018/011888
申请日：2018-10-08
申请人： 엘에스전선 주식회사
发明人： 류성한 , 김영선
IPC分类号： H02J50/60 , H02J50/12 , H03H7/38
摘要： 본 발명은 공진 결합을 기반으로 하는 자기공진 방식의 무선전력 전송에서 무선전력 송전부와 무선전력 수전부 사이에 금속 재질의 장애물이 개재되어 포함되는 경우에도 무선전력 전송이 가능한 무선전력 송신장치, 무선전력 수신장치 및 무선전력 전송 시스템에 관한 것이다.

39. 发明申请

WO2019088487A2 무선전력 송신장치, 무선전력 수신장치 및 무선전력 전송 시스템 审中-公开
公开(公告)号：WO2019088487A2
公开(公告)日：2019-05-09
申请号：PCT/KR2018/011888
申请日：2018-10-08
申请人： 엘에스전선 주식회사
发明人： 류성한 , 김영선
IPC分类号： H02J50/60 , H02J50/12 , H03H7/38
CPC分类号： H02J50/12 , H02J50/60 , H03H7/38
摘要： 본 발명은 공진 결합을 기반으로 하는 자기공진 방식의 무선전력 전송에서 무선전력 송전부와 무선전력 수전부 사이에 금속 재질의 장애물이 개재되어 포함되 는 경우에도 무선전력 전송이 가능한 무선전력 송신장치, 무선전력 수신장치 및 무 선전력 전송 시스템에 관한 것이다.

40. 发明申请

WO2019034456A1 FREMDKÖRPERERKENNUNG 审中-公开
公开(公告)号：WO2019034456A1
公开(公告)日：2019-02-21
申请号：PCT/EP2018/071202
申请日：2018-08-03
申请人： CONTINENTAL AUTOMOTIVE GMBH
发明人： RÖHRL, Thomas
IPC分类号： B60L11/18 , H02J50/60
摘要： Die vorliegende Erfindung betrifft eine Fahrzeug-Ladeabbruchsteuerungseinrichtung (10) mit Fremdkörpererkennung. Die Fahrzeug-Ladeabbruchsteuerungseinrichtung (10) weist wenigstens zwei Messspulen (21, 22, 23, 24, 25, 26) zum Erfassen jeweils einer induzierten Spannung und eine Steuereinheit (11) auf. Die Steuereinheit (11) ist dazu eingerichtet, eine erste Auswertung und eine zweite Auswertung durchzuführen. Bei der ersten Auswertung vergleicht die Steuereinheit (11) jede der induzierten Spannungen mit einem entsprechenden vordefinierten Erwartungswert, um eine erste Abweichung zwischen der erfassten induzierten Spannung und dem jeweiligen vordefinierten Erwartungswert zu bestimmen. Die Steuereinheit (11) ist ferner dazu eingerichtet, bei der zweiten Auswertung die induzierten Spannungen miteinander zu vergleichen und eine zweite Abweichung zwischen den induzierten Spannungen zu bestimmen. Die Steuereinheit (11) ist dazu eingerichtet, auf einen Fremdkörper (50) im Bereich der Messspulen (21, 22, 23, 24, 25, 26) zu schließen, wenn die erste Abweichung der ersten Auswertung einen ersten vordefinierten Schwellwert und/oder die zweite Abweichung der zweiten Auswertung einen zweiten vordefinierten Schwellwert unterschreitet und/oder überschreitet, wobei die Abweichung der ersten Auswertung und die Abweichung der zweiten Auswertung abhängig von einem Betriebspunkt einer Ladestation (40) gewichtetwerden.

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