CN102089955B - 在规定限制下的无线高电力传送 - Google Patents

在规定限制下的无线高电力传送 Download PDF

Info

Publication number
CN102089955B
CN102089955B CN200980126564.7A CN200980126564A CN102089955B CN 102089955 B CN102089955 B CN 102089955B CN 200980126564 A CN200980126564 A CN 200980126564A CN 102089955 B CN102089955 B CN 102089955B
Authority
CN
China
Prior art keywords
coil
antenna
aligned position
reception antenna
transmitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN200980126564.7A
Other languages
English (en)
Other versions
CN102089955A (zh
Inventor
奈杰尔·库克
汉斯彼得·威德默
卢卡斯·西贝尔
戴维·奥尔雷德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WiTricity Corp
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41211749&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN102089955(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to CN201410472151.7A priority Critical patent/CN104283331B/zh
Publication of CN102089955A publication Critical patent/CN102089955A/zh
Application granted granted Critical
Publication of CN102089955B publication Critical patent/CN102089955B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • H02J50/23—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H04B5/266—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/20—AC to AC converters
    • H04B5/79—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Abstract

本发明提供一种用于车辆的改进型电池充电系统。初级线圈及次级线圈位于其中所述车辆可(例如)通过进入停车空间中而从所述初级线圈接收电力的地方。所述停车空间可具有嵌入地面中的线圈，或可具有嵌入地面中的线圈阵列。本发明揭示一种导引系统。本发明还揭示精细定位。所述车辆中的所述次级线圈还可升高或降低以改进耦合。

Description

在规定限制下的无线高电力传送
根据35U.S.C.§119主张优先权
本专利申请案主张2008年7月8日申请的标题为“在规定限制下的无线高电力传送(WIRELESS HIGH POWER TRANSFER UNDER REGULATORY CONSTRAINTS)”的第61／078,812号临时申请案的优先权，所述申请案已转让给本发明的受让人且在此以引用的方式明确地并入本文中。
技术领域
本发明涉及一种用于无线电力的系统和方法。
背景技术
我们的先前申请案描述了天线之间的磁共振电力传送。天线可为电容性负载的线环或多匝线圈。这些形成将来自初级结构(发射器)的能量经由磁场而有效地耦合到远端定位的次级结构(接收器)的共振天线。将初级线圈与次级线圈两者均调谐到共同共振频率。
我们的先前申请案描述了无线电力作为针对人类安全的电磁干扰及辐射暴露的主要问题。经由磁场耦合的能量传送可能主要通过规定的H场限度而受到限制。可在离辐射结构的经界定距离(例如，10m)处测试是否符合这些限度。
发明内容
一方面，本发明提供一种用于无线电力的发射器系统，所述发射器系统包含发射天线，所述发射天线包括在第一频率下共同磁共振的电感性元件及电容器。所述发射天线可以嵌入地面中，并经配置以产生用于对装置进行充电的无线场，所述装置包括接收天线和导引控制器，所述导引控制器经配置以将所述装置的所述接收天线导引到相对于所述发射天线的第一对准位置。所述发射器系统还包含导引系统，其经配置以检测所述接收天线与所述第一对准位置处的发射天线的耦合；以及对准控制器，其经配置以提供x-y偏移控制，并且经配置以将所述发射天线相对于所述接收天线的所述位置从所述第一对准位置调整到第二对准位置，所述第二对准位置比所述第一对准位置具有所述接收天线与所述发射天线之间更精细的对准，以改进所述耦合。
另一方面，本发明提供一种用于无线电力的发射器系统，其包含：多个发射线圈，其形成阵列且彼此紧密地组装，且所述发射线圈中的每一者包括电容器，所述电容器使所述发射线圈在第一频率下实质性磁共振，所述发射线圈阵列嵌入地面区域中，并经配置以产生用于对装置进行充电的无线场，所述装置包括接收线圈和导引控制器，所述导引控制器经配置以将所述装置的所述接收线圈导引到相对于所述发射线圈的第一对准位置；以及导引系统，其经配置以检测所述接收线圈与所述第一对准位置处的所述发射线圈的耦合；以及对准控制器，其经配置以提供x-y偏移控制，并且经配置以将所述发射线圈相对于所述接收线圈的位置从所述第一对准位置调整到第二对准位置，所述第二对准位置比所述第一对准位置具有所述接收线圈与所述发射线圈之间更精细的对准，以改进所述耦合。
另一方面，本发明提供一种用于无线电力的接收器系统，其包含：接收天线，其耦合到装置并由在第一频率下共同磁共振的线圈及电容器形成；导引控制器，其经配置以将所述装置的所述接收天线导引到相对于发射天线的第一对准位置；用于所述接收天线的提升装置，其经配置以基于所述发射天线的检测而提升及降低所述接收天线；以及对准控制器，其经配置以提供x-y偏移控制，并且经配置以将所述接收天线从所述第一对准位置移动到第二对准位置，以将所述接收天线与所述发射天线更佳地对准。
另一方面，本发明提供一种用于无线电力的接收器系统，其包含：车辆，其经配置以基于电力而操作；接收线圈，其形成于所述车辆中，所述接收线圈包括在第一频率下共同磁共振的线圈及电容器，且经连接以产生为所述车辆供电的输出；导引控制器，其经配置以将所述车辆的所述接收天线导引到相对于发射线圈的第一对准位置；以及用于所述接收线圈的对准控制器，其提供x-y偏移控制，并且经自动地调整以将所述接收线圈从所述第一对准位置移动到第二对准位置，以更佳地对准所述接收线圈与所述发射线圈。
另一方面，本发明提供一种方法，其包含：在电池操作车辆中用接收天线以磁性方式接收电力；将所述电池操作车辆的所述接收天线导引到相对于发射天线的第一对准位置；以及响应于检测到的所述第一对准位置处的磁耦合，提供x-y偏移控制，以将所述车辆中的接收天线从所述第一对准位置移动到相对于所述发射天线的第二对准位置，以将所述接收天线与所述发射天线更佳地对准。
附图说明
图1展示无线电力传送系统的简化框图。
图2展示无线电力传送系统的更详细框图。
图3展示用于本发明的示范性实施例中的环形天线的示意图。
图4展示用于初级线圈及次级线圈的类似大小的两个盘形线圈；
图5展示次级线圈如何降下以实现紧密近接耦合；
图6展示车辆如何在线圈同轴时充电；
图7说明由导引系统控制的车辆；
图8展示通过次级线圈的x-y偏移控制进行的精细对准；
图9展示通过初级线圈的x-y偏移控制进行的精细对准；
图10展示在初级线圈阵列上方通过次级线圈的x-y偏移控制进行的精细对准。
具体实施方式
词语“示范性”在本文中是用以意味着“充当实例、例子或说明”。不必将在本文中描述为“示范性”的任何实施例理解为比其它实施例优选或有利。
以下结合附图阐述的详细描述意图作为本发明的示范性实施例的描述，且不意图表示可实践本发明的仅有实施例。所述详细描述包括用于提供对本发明的示范性实施例的透彻理解的特定细节。对于所属领域的技术人员来说应显而易见的是，可在没有这些特定细节的情况下实践本发明的示范性实施例。在一些例子中，以框图形式来展示众所周知的结构及装置，以便避免使本文中所呈现的示范性实施例的新颖性模糊。
词语“无线电力”在本文中是用以意味着与电场、磁场、电磁场相关联或另外在不使用物理电磁导体的情况下从发射器发射到接收器的任何形式的能量。
图1说明根据本发明的各种示范性实施例的无线发射或充电系统100。将输入电力102提供到发射器104以用于产生用于提供能量传送的辐射场106。接收器108耦合到辐射场106，且产生输出电力110以供存储或供耦合到输出电力110的装置(未图示)消耗。使发射器104与接收器108两者分离一距离112。在一个示范性实施例中，发射器104及接收器108是根据相互共振关系而被配置。当接收器108的共振频率与发射器104的共振频率相等时，发射器104与接收器108之间的发射损失在接收器108位于辐射场106的“近场”中时最小。
发射器104进一步包括用于提供用于能量发射的方式的发射天线114，且接收器108进一步包括用于提供用于能量接收的方式的接收天线118。发射天线及接收天线的大小是根据待与其相关联的应用及装置而确定。如所陈述，通过将能量的大部分在发射天线的近场中耦合到接收天线而非将大多数能量以电磁波传播到远场而发生有效能量传送。当在此近场中时，可在发射天线114与接收天线118之间产生耦合模式。在天线114及118周围可发生此近场耦合的区域在本文中被称为耦合模式区。
图2展示无线电力传送系统的简化示意图。发射器104包括振荡器122、电力放大器124以及滤波器及匹配电路126。振荡器122经配置以在所要频率(例如，13.5MHz)下产生，所述所要频率可响应于调整信号123而进行调整。替代方案使用LF频率(例如，135Khz)。振荡器信号可由电力放大器124使用响应于控制信号125的放大量而放大。可包括滤波器及匹配电路126以过滤掉谐波或其它不需要的频率，且使发射器104的阻抗匹配于发射天线114。
接收器108可包括匹配电路132以及整流器及切换电路134以产生DC电力输出，以如图2所示而为电池136充电或为耦合到接收器的装置(未图示)供电。可包括匹配电路132以使接收器108的阻抗匹配于接收天线118。
如图3所说明，用于示范性实施例中的天线可配置为“环形”天线150，其在本文中也可被称为“磁性”天线。环形天线可经配置以包括空心或例如铁氧体磁心的实心。使用铁氧体磁心可减少外来对象的影响。然而，铁氧体磁心可能需要特定长度才能有效，这当在车辆中使用时可能存在困难。认为空心盘形线圈更适用于集成于汽车中且适用于嵌入地面中。LF铁氧体可用作磁屏蔽以防止场在天线周围环境的金属部分中产生涡电流。
可通过保持其它装置在磁心区域外部而改进效率。
空心环形天线可更容许外来物理装置放置于磁心附近。此外，空心环形天线允许其它元件放置于磁心区域内。另外，空心环形可更容易使接收天线118(图2)能够放置于发射天线114(图2)的平面内，其中发射天线114(图2)的耦合模式区可更有功效。
如所陈述，在发射器104与接收器108之间的匹配共振或接近匹配共振期间发生在发射器104与接收器108之间的有效能量传送。然而，即使当发射器104与接收器108之间的共振不匹配时，能量也可在较低效率下传送。通过将能量从发射天线的近场耦合到驻留于建立此近场的邻域中的接收天线而非将能量从发射天线传播到自由空间中而发生能量传送。
环形或磁性天线的共振频率是基于电感及电容。环形天线中的电感通常就是由环产生的电感，而电容通常添加到环形天线的电感以产生在所要共振频率下的共振结构。作为非限制性实例，可将电容器152及电容器154添加到天线以产生共振电路，所述共振电路产生共振信号156。因此，对于更大直径的环形天线来说，诱发共振所需要的电容的大小随着环的直径或电感的增加而减少。此外，随着环形或磁性天线的直径增加，近场的有效能量传送区域增加。当然，其它共振电路也是可能的。作为另一非限制性实例，可将电容器并联地放置于环形天线的两个端子之间。另外，一股所属领域的技术人员应认识到，对于发射天线来说，共振信号156可为到环形天线150的输入。
本发明的示范性实施例包括在彼此的近场中的两个天线之间耦合电力。如所陈述，近场为在天线周围存在电磁场但其可能不远离于所述天线进行传播或辐射的区域。其通常被限于接近天线的物理体积的体积。在本发明的示范性实施例中，将例如单匝环形天线及多匝环形天线的磁型天线用于发射(Tx)天线系统及接收(Rx)天线系统两者，因为与电型天线(例如，小偶极)的电近场相比，对于磁型天线来说，磁近场振幅趋向于更高。此允许所述对之间的潜在更高耦合。此外，还预期“电性”天线(例如，偶极及单极)或磁性天线与电性天线的组合。
Tx天线可在足够低的频率下且以足够大的天线大小而操作，以在显著大于由前文所提及的远场及电感性方法所允许的距离的距离处实现到小Rx天线的良好耦合(例如，>-4dB)。如果Tx天线的大小经正确地确定，则当将主机装置上的Rx天线放置于经驱动Tx环形天线的耦合模式区内(即，近场中)时，可实现高耦合电平(例如，-2到-4dB)。
应注意，前述方法可应用于各种通信标准，例如，CDMA、WCDMA、OFDM，等等。所属领域的技术人员应理解，可使用各种不同技术及技艺中的任一者来表示信息及信号。举例来说，可通过电压、电流、电磁波、磁场或磁性粒子、光场或光学粒子或其任何组合来表示可在整个上文描述中所参考的数据、指令、命令、信息、信号、位、符号及码片。
本发明的示范性实施例是针对(或包括)下文。
发明者认为共振充电是最佳充电方式，因为对于相同大小线圈来说发热更少且效率更佳。因此，示范性实施例描述磁耦合系统。
在示范性实施例中，可理论上展示：最大可传送电力取决于辐射结构的大小(线圈直径)、初级线圈与次级线圈之间的耦合因子及初级线圈与次级线圈的品质因子(Q因子)。
大小及耦合因子对辐射电平具有强烈影响，从而限制距离及最大可传送电力。之所以这样认为，是因为以下事实：虽然使经传送电力维持恒定，但如果将次级线圈从初级线圈去除以使得耦合变得更弱，则存储于环绕线圈的磁场中的无功能量的量快速地增加。
改进的Q因子使得传送效率更高且降低辐射电平，因此允许更高的可传送电力。
为了示范说明耦合因子与最大可传送电力的关系，针对示范性实施例而假设由两个相同圆形线圈形成的假想能量传送系统。使用适当电容器而针对在135KHz下的共振来调谐初级线圈及次级线圈两者。表1中列出共振电路的线圈参数及Q因子。此可被视为可用于示范性实施例中的线圈的实例。
参数 单位 初级线圈 次级线圈
线圈外部半径 cm 8 8
线圈内部半径 cm 6.5 6.5
线圈轴向宽度 cm 1 1
匝数 66 66
线圈面积 m2 0.0201 0.0201
共振器的Q因子 250 250
表1
在135kHz下且对于给定线圈面积来说可应用的H场强度限度在10m的距离处为57dBuA／m，见欧洲标准EN300330(短程装置)。
表2指示初级线圈中的所得r.m.s.电流及电压。表2展示初级线圈上的数千伏特的电压，因此示范说明线圈内的高电压。这可能在电力／热耗散及耐电压方面存在难题。
表2
表2实际上展示所谓的中位距离，其为线圈中心到中心距离，其是针对示范性实施例的1cm厚线圈。因此，线圈的表面之间的实际距离为以厘米为单位的距离减去1cm。因此，表2中的1cm距离为接近零的值：线圈之间的最小可能距离。
已知电池电动车辆或“BEV”支持有限工作半径。示范性实施例描述用于为BEV再充电的无线解决方案。
图4中所说明的示范性实施例形成初级线圈或发射器400及次级线圈或接收器450。初级线圈及次级线圈中的每一者使用类似大小的盘形线圈。初级线圈410为盘形或“扁平”线圈，其中其径向宽度大于其轴向宽度。所述线圈的尺寸经确定以处置高电力且承受将产生的所得高AC电压及电流，例如，表2中所阐述的电压及电流。在示范性实施例中，接收线圈460具有与发射线圈的大小及特性相同的大小及特性。线圈也可由绝缘漆包绞线(Litz wire)形成。
为了使辐射场最小化，线圈直径应尽可能地小。然而，在示范性实施例中，线圈应充分地大以处置高电力且顾及车辆应用中将通常存在的某相对定位误差。
操作频率下的共振是通过添加与线圈串联的适当值高Q电容器而实现。图4展示与发射线圈410串联的电容器415，且展示与接收线圈460串联的电容器465。在示范性实施例中，所述两个电容器的尺寸均经确定以耐受表2中所阐述的高AC电压。
在示范性实施例中，向车辆传递充电电力的初级线圈310可在对应于次级线圈360在车辆上可能所在地方的位置处完全埋入到停车场的土壤中。通过将初级线圈放于地面中，可从较高的电压(例如，220V或440V)对其进行运转。线圈经定位使得不同大小及长度的车辆在初级线圈与次级线圈同轴地对准时均适当地停放。在图5及图6展示的布置中，BEV500具有安装于提升机构510上的线圈360，提升机构510控制提升及降低线圈。
所述操作可由车辆500中的处理器520控制。一旦线圈同轴地对准且检测到初级线圈，便如图5所示而降低次级线圈460以实现到初级线圈410的紧密近接耦合。接着，处理器可控制初始测试以检查初级线圈410与次级线圈460之间的电力传送的耦合及效率。可使用所述测试来调适链接。电力传送可在这些测试的成功完成后即刻开始。
在另一示范性实施例中，除了x-y精细定位控制之外，还可存在z轴控制。
图6说明车辆500可如何停放于空间600、610及620中的任一者中。这些空间中的每一者具有可用以为车辆充电的被嵌入且被激励的初级线圈。
图7中的示范性实施例可使用导引系统700来帮助驾驶者(或在自动驾驶车辆的状况下为自动驾驶仪(autopilot))准确地定位车辆。导引系统可依赖于使用LF或HF频带的无线电定位原理。举例来说，示范性实施例可感测初级线圈410与次级线圈460之间的耦合程度。可(例如)通过从初级线圈接收电力的车辆来检测耦合量。导引系统可产生指示所述程度的输出(例如，声音或显示)。
在图8所示的另一示范性实施例中，车载子系统可另外提供用于次级线圈的x-y偏移控制800。导引系统仅将用于仅粗略定位，而x-y偏移控制将调整精细对准以允许线圈之间的更佳耦合。
替代地或另外，图9的示范性实施例界定对准控制900作为初级子系统的一部分。此可提供移动初级线圈410的x-y偏移控制。
在图10所示的另一示范性实施例中，使用初级线圈阵列699以代替单一线圈。所述阵列包括紧密组装的线圈700、701、702、703、704。虽然此示范性实施例展示五个这些线圈，但可使用(例如)3个与15个线圈之间的任何数目。
充电控制710是通过开关盒720而连接到所述线圈中的每一者。通过测试到次级线圈的耦合，充电控制710选择阵列699中最靠近于次级线圈160的初级线圈。另外，如在其它示范性实施例中，次级线圈还可使用BEV的x-y偏移控制而对准于最靠近的初级线圈。在一个示范性实施例中，一旦建立链接，仅一个初级线圈即刻将起作用以用于无线充电。所有其它初级线圈均被去激活。此示范性实施例还可使用所述初级线圈的x-y控制，其是通过允许这些初级线圈的精细移动以匹配于次级线圈的位置而进行。
另一示范性实施例描述载运初级线圈的机器人车辆，且初级线圈在车辆下方自动地移动到次级线圈的位置。
另一示范性实施例包含人类存在检测器，其可用以检测人类何时进入或离开车辆。此可使用(例如)红外线检测系统，其使用位于车辆附近的各种位置处的例如215等红外线传感器。当红外线检测系统检测到很可能表示人的类型的热量时，其输出指示人的存在的信号。在示范性实施例中，如果检测到人就使充电终止。此可减轻磁性充电另外对健康有害的某些担心。
另一示范性实施例可包括自动地检测场强度(例如，FCC场强度)且自动地维持值低于FFC限度的电路。
所属领域的技术人员应进一步了解，可将结合本文中所揭示的实施例而描述的各种说明性逻辑块、模块、电路及算法步骤实施为电子硬件、计算机软件，或此两者的组合。为了清楚地说明硬件与软件的此互换性，已在上文大概按照其功能性而描述了各种说明性组件、块、模块、电路及步骤。此功能性被实施为硬件还是软件是取决于特定应用及强加于整个系统上的设计约束。所属领域的技术人员可针对每一特定应用而以变化方式来实施所描述功能性，但这些实施决策不应被解释为会导致脱离本发明的示范性实施例的范围。
结合本文中所揭示的实施例而描述的各种说明性逻辑块、模块及电路可通过通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或其它可编程逻辑装置、离散门或晶体管逻辑、离散硬件组件或其经设计以执行本文中所描述的功能的任何组合而实施或执行。通用处理器可为微处理器，但在替代方案中，处理器可为任何常规处理器、控制器、微控制器或状态机。还可将处理器实施为计算装置的组合，例如，DSP与微处理器的组合、多个微处理器、结合DSP核心的一个或一个以上微处理器，或任何其它此配置。
结合本文中所揭示的实施例而描述的方法或算法的步骤可直接以硬件、以由处理器所执行的软件模块或以此两者的组合来体现。软件模块可驻留于随机存取存储器(RAM)、快闪存储器、只读存储器(ROM)、电可编程ROM(EPROM)、电可擦除可编程ROM(EEPROM)、寄存器、硬盘、可装卸盘、CD-ROM或此项技术中已知的任何其它形式的存储媒体中。将示范性存储媒体耦合到所述处理器，使得所述处理器可从所述存储媒体读取信息及将信息写入到所述存储媒体。在替代方案中，存储媒体可与处理器成一体式。处理器及存储媒体可驻留于ASIC中。ASIC可驻留于用户终端中。在替代方案中，处理器及存储媒体可作为离散组件而驻留于用户终端中。
在一个或一个以上示范性实施例中，所描述功能可以硬件、软件、固件或其任何组合来实施。如果以软件实施，则所述功能可作为一个或一个以上指令或代码而存储于计算机可读媒体上或在计算机可读媒体上传输。计算机可读媒体包括计算机存储媒体及通信媒体两者，通信媒体包括促进计算机程序从一个位置传送到另一位置的任何媒体。存储媒体可为可由计算机存取的任何可用媒体。通过实例而非限制，这些计算机可读媒体可包含RAM、ROM、EEPROM、CD-ROM或其它光盘存储装置、磁盘存储装置或其它磁性存储装置，或可用以载运或存储指令或数据结构的形式的所要程序代码且可由计算机存取的任何其它媒体。又，适当地将任何连接称为计算机可读媒体。举例来说，如果使用同轴电缆、光纤电缆、双绞线、数字用户线(DSL)或例如红外线、无线电及微波的无线技术从网站、服务器或其它远程源发射软件，则同轴电缆、光纤电缆、双绞线、DSL或例如红外线、无线电及微波的无线技术包括于媒体的定义中。如本文中所使用的磁盘及光盘包括压缩光盘(CD)、激光光盘、光学光盘、数字通用光盘(DVD)、软性磁盘及蓝光光盘，其中磁盘通常以磁性方式再生数据，而光盘使用激光以光学方式再生数据。上述各项的组合也应包括于计算机可读媒体的范围内。
提供所揭示的示范性实施例的先前描述以使所属领域的技术人员能够制造或使用本发明。对这些示范性实施例的各种修改对于所属领域的技术人员来说将是显而易见的，且本文中所界定的一股原理可在不脱离本发明的精神或范围的情况下应用于其它实施例。因此，本发明不意图限于本文中所展示的实施例，而是将符合与本文中所揭示的原理及新颖特征一致的最广泛范围。

Claims (26)

1.一种用于无线电力的发射器系统，其包含：
发射天线，其包括在第一频率下共同磁共振的电感性元件及电容器，所述发射天线嵌入地面中，并经配置以产生用于对装置进行充电的无线场，所述装置包括接收天线和导引控制器，所述导引控制器经配置以将所述装置的所述接收天线导引到相对于所述发射天线的第一对准位置；
导引系统，其经配置以检测所述接收天线与所述第一对准位置处的发射天线的耦合；以及
对准控制器，其经配置以提供x-y偏移控制，并且经配置以将所述发射天线相对于所述接收天线的所述位置从所述第一对准位置调整到第二对准位置，所述第二对准位置比所述第一对准位置具有所述接收天线与所述发射天线之间更精细的对准，以改进所述耦合。
2.根据权利要求1所述的发射器系统，其中所述第一频率为135kHz。
3.根据权利要求2所述的发射器系统，其中所述发射天线包括线圈，所述线圈具有大于其轴向宽度的径向宽度。
4.根据权利要求1所述的发射器系统，其中所述发射天线包括天线阵列，所述天线彼此紧密地组装，且所述阵列在既定停车空间的规定区域上延伸。
5.根据权利要求4所述的发射器系统，其进一步包含充电控制系统，所述充电控制系统经配置以产生在所述第一频率下的信号，所述信号是在输出到所述发射天线时将电力发射到接收天线的类型的信号。
6.根据权利要求5所述的发射器系统，其中所述充电控制系统经配置以选择所述阵列的所述天线中的一者。
7.根据权利要求6所述的发射器系统，其进一步包含切换装置，所述切换装置经配置以仅将所述信号切换到所述阵列的所述天线中被选定的所述天线，且不将任何信号发送到所述阵列的任何其它天线。
8.根据权利要求1所述的发射器系统，其进一步包含充电控制系统，所述充电控制系统经配置以产生在所述第一频率下的信号，所述信号是在输出到所述发射天线时将电力发射到所述接收天线的类型的信号。
9.根据权利要求1所述的发射器系统，其中所述对准控制器改变所述发射天线的x位置及y位置。
10.一种用于无线电力的发射器系统，其包含：
多个发射线圈，其形成阵列且彼此紧密地组装，且所述发射线圈中的每一者包括电容器，所述电容器使所述发射线圈在第一频率下实质性磁共振，所述发射线圈阵列嵌入地面区域中，并经配置以产生用于对装置进行充电的无线场，所述装置包括接收线圈和导引控制器，所述导引控制器经配置以将所述装置的所述接收线圈导引到相对于所述发射线圈的第一对准位置；以及
导引系统，其经配置以检测所述接收线圈与所述第一对准位置处的所述发射线圈的耦合；以及
对准控制器，其经配置以提供x-y偏移控制，并且经配置以将所述发射线圈相对于所述接收线圈的位置从所述第一对准位置调整到第二对准位置，所述第二对准位置比所述第一对准位置具有所述接收线圈与所述发射线圈之间更精细的对准，以改进所述耦合。
11.根据权利要求10所述的发射器系统，其进一步包含充电控制系统，所述充电控制系统产生在所述第一频率下的信号，所述信号是在输出到所述线圈中的一者时将电力发射到所述接收线圈的类型的信号。
12.根据权利要求11所述的发射器系统，其中所述第一频率为135kHz。
13.根据权利要求11所述的发射器系统，其进一步包含切换配置，所述切换配置将所述信号切换到所述阵列的所述线圈中的任一者。
14.根据权利要求13所述的发射器系统，其进一步包含检测系统，所述检测系统检测所述线圈中的哪一者具有最佳耦合，且使用所述检测来控制所述切换配置。
15.一种用于无线电力的接收器系统，其包含：
接收天线，其耦合到装置并由在第一频率下共同磁共振的线圈及电容器形成；
导引控制器，其经配置以将所述装置的所述接收天线导引到相对于发射天线的第一对准位置；
用于所述接收天线的提升装置，其经配置以基于所述发射天线的检测而提升及降低所述接收天线；以及
对准控制器，其经配置以提供x-y偏移控制，并且经配置以将所述接收天线从所述第一对准位置移动到第二对准位置，以将所述接收天线与所述发射天线更佳地对准。
16.根据权利要求15所述的接收器系统，其进一步包含x-y对准控制器，所述x-y对准控制器经配置以通过在x方向及y方向上移动所述接收天线而自动地对准所述接收天线以与所述发射天线更佳地对准。
17.根据权利要求15所述的接收器系统，其进一步包含从所述接收天线接收磁诱发信号及从其产生电力的电路。
18.根据权利要求17所述的接收器系统，其中所述电路是在135kHz下共振。
19.根据权利要求15所述的接收器系统，其中所述接收天线及所述提升装置是电池操作车辆的一部分。
20.一种用于无线电力的接收器系统，其包含：
车辆，其经配置以基于电力而操作；
接收线圈，其形成于所述车辆中，所述接收线圈包括在第一频率下共同磁共振的线圈及电容器，且经连接以产生为所述车辆供电的输出；
导引控制器，其经配置以将所述车辆的所述接收线圈导引到相对于发射线圈的第一对准位置；以及
用于所述接收线圈的对准控制器，其提供x-y偏移控制，并且经自动地调整以将所述接收线圈从所述第一对准位置移动到第二对准位置，以更佳地对准所述接收线圈与所述发射线圈。
21.根据权利要求20所述的接收器系统，其进一步包含用于所述接收线圈的提升装置，所述提升装置自动地基于检测到来自所述发射线圈的磁耦合而升高及降低所述接收线圈。
22.根据权利要求20所述的接收器系统，其进一步包含从所述接收线圈接收磁诱发信号及从其产生电力且使用所述电力来操作所述车辆的电路。
23.根据权利要求22所述的接收器系统，其中所述电路在135kHz下共振。
24.根据权利要求20所述的接收器系统，其中所述对准控制器控制x-y对准。
25.一种用于接收无线电力的方法，其包含：
在电池操作车辆中用接收天线以磁性方式接收电力；
将所述电池操作车辆的所述接收天线导引到相对于发射天线的第一对准位置；以及
响应于检测到的所述第一对准位置处的磁耦合，提供x-y偏移控制，以将所述车辆中的接收天线从所述第一对准位置移动到相对于所述发射天线的第二对准位置，以将所述接收天线与所述发射天线更佳地对准。
26.根据权利要求25所述的方法，其进一步包含降低所述接收天线以使所述接收天线更靠近于所述发射天线。
CN200980126564.7A 2008-07-08 2009-07-08 在规定限制下的无线高电力传送 Active CN102089955B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410472151.7A CN104283331B (zh) 2008-07-08 2009-07-08 在规定限制下的无线高电力传送

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US7881208P 2008-07-08 2008-07-08
US61/078,812 2008-07-08
US12/498,159 US8466654B2 (en) 2008-07-08 2009-07-06 Wireless high power transfer under regulatory constraints
US12/498,159 2009-07-06
PCT/US2009/049975 WO2010006078A1 (en) 2008-07-08 2009-07-08 Wireless high power transfer under regulatory constraints

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201410472151.7A Division CN104283331B (zh) 2008-07-08 2009-07-08 在规定限制下的无线高电力传送

Publications (2)

Publication Number Publication Date
CN102089955A CN102089955A (zh) 2011-06-08
CN102089955B true CN102089955B (zh) 2014-10-22

Family

ID=41211749

Family Applications (2)

Application Number Title Priority Date Filing Date
CN200980126564.7A Active CN102089955B (zh) 2008-07-08 2009-07-08 在规定限制下的无线高电力传送
CN201410472151.7A Active CN104283331B (zh) 2008-07-08 2009-07-08 在规定限制下的无线高电力传送

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201410472151.7A Active CN104283331B (zh) 2008-07-08 2009-07-08 在规定限制下的无线高电力传送

Country Status (6)

Country Link
US (2) US8466654B2 (zh)
EP (2) EP2584665B1 (zh)
JP (3) JP5329660B2 (zh)
KR (3) KR20110026022A (zh)
CN (2) CN102089955B (zh)
WO (1) WO2010006078A1 (zh)

Families Citing this family (316)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7825543B2 (en) 2005-07-12 2010-11-02 Massachusetts Institute Of Technology Wireless energy transfer
US8169185B2 (en) 2006-01-31 2012-05-01 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US7952322B2 (en) 2006-01-31 2011-05-31 Mojo Mobility, Inc. Inductive power source and charging system
US11201500B2 (en) 2006-01-31 2021-12-14 Mojo Mobility, Inc. Efficiencies and flexibilities in inductive (wireless) charging
US11329511B2 (en) 2006-06-01 2022-05-10 Mojo Mobility Inc. Power source, charging system, and inductive receiver for mobile devices
US7948208B2 (en) 2006-06-01 2011-05-24 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices
US9421388B2 (en) 2007-06-01 2016-08-23 Witricity Corporation Power generation for implantable devices
US8805530B2 (en) 2007-06-01 2014-08-12 Witricity Corporation Power generation for implantable devices
US20110050164A1 (en) 2008-05-07 2011-03-03 Afshin Partovi System and methods for inductive charging, and improvements and uses thereof
EP2281322B1 (en) 2008-05-14 2016-03-23 Massachusetts Institute of Technology Wireless energy transfer, including interference enhancement
US8461720B2 (en) * 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using conducting surfaces to shape fields and reduce loss
US9318922B2 (en) 2008-09-27 2016-04-19 Witricity Corporation Mechanically removable wireless power vehicle seat assembly
US9601261B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Wireless energy transfer using repeater resonators
US8643326B2 (en) 2008-09-27 2014-02-04 Witricity Corporation Tunable wireless energy transfer systems
US8476788B2 (en) 2008-09-27 2013-07-02 Witricity Corporation Wireless energy transfer with high-Q resonators using field shaping to improve K
US8471410B2 (en) 2008-09-27 2013-06-25 Witricity Corporation Wireless energy transfer over distance using field shaping to improve the coupling factor
US9160203B2 (en) 2008-09-27 2015-10-13 Witricity Corporation Wireless powered television
US8901778B2 (en) 2008-09-27 2014-12-02 Witricity Corporation Wireless energy transfer with variable size resonators for implanted medical devices
US9065423B2 (en) 2008-09-27 2015-06-23 Witricity Corporation Wireless energy distribution system
US8569914B2 (en) 2008-09-27 2013-10-29 Witricity Corporation Wireless energy transfer using object positioning for improved k
US8957549B2 (en) 2008-09-27 2015-02-17 Witricity Corporation Tunable wireless energy transfer for in-vehicle applications
US8629578B2 (en) 2008-09-27 2014-01-14 Witricity Corporation Wireless energy transfer systems
US9515494B2 (en) 2008-09-27 2016-12-06 Witricity Corporation Wireless power system including impedance matching network
US8772973B2 (en) 2008-09-27 2014-07-08 Witricity Corporation Integrated resonator-shield structures
US9184595B2 (en) 2008-09-27 2015-11-10 Witricity Corporation Wireless energy transfer in lossy environments
US8963488B2 (en) 2008-09-27 2015-02-24 Witricity Corporation Position insensitive wireless charging
US8461721B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using object positioning for low loss
US8669676B2 (en) 2008-09-27 2014-03-11 Witricity Corporation Wireless energy transfer across variable distances using field shaping with magnetic materials to improve the coupling factor
US8922066B2 (en) 2008-09-27 2014-12-30 Witricity Corporation Wireless energy transfer with multi resonator arrays for vehicle applications
US8304935B2 (en) * 2008-09-27 2012-11-06 Witricity Corporation Wireless energy transfer using field shaping to reduce loss
US9246336B2 (en) 2008-09-27 2016-01-26 Witricity Corporation Resonator optimizations for wireless energy transfer
US9601266B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Multiple connected resonators with a single electronic circuit
US20120112691A1 (en) * 2008-09-27 2012-05-10 Kurs Andre B Wireless energy transfer for vehicles
US8946938B2 (en) 2008-09-27 2015-02-03 Witricity Corporation Safety systems for wireless energy transfer in vehicle applications
US8686598B2 (en) 2008-09-27 2014-04-01 Witricity Corporation Wireless energy transfer for supplying power and heat to a device
US8552592B2 (en) * 2008-09-27 2013-10-08 Witricity Corporation Wireless energy transfer with feedback control for lighting applications
US20100277121A1 (en) * 2008-09-27 2010-11-04 Hall Katherine L Wireless energy transfer between a source and a vehicle
US8692410B2 (en) * 2008-09-27 2014-04-08 Witricity Corporation Wireless energy transfer with frequency hopping
US8482158B2 (en) 2008-09-27 2013-07-09 Witricity Corporation Wireless energy transfer using variable size resonators and system monitoring
US8587153B2 (en) 2008-09-27 2013-11-19 Witricity Corporation Wireless energy transfer using high Q resonators for lighting applications
US8466583B2 (en) 2008-09-27 2013-06-18 Witricity Corporation Tunable wireless energy transfer for outdoor lighting applications
US9744858B2 (en) 2008-09-27 2017-08-29 Witricity Corporation System for wireless energy distribution in a vehicle
US8410636B2 (en) 2008-09-27 2013-04-02 Witricity Corporation Low AC resistance conductor designs
US8497601B2 (en) 2008-09-27 2013-07-30 Witricity Corporation Wireless energy transfer converters
US8937408B2 (en) 2008-09-27 2015-01-20 Witricity Corporation Wireless energy transfer for medical applications
US8324759B2 (en) * 2008-09-27 2012-12-04 Witricity Corporation Wireless energy transfer using magnetic materials to shape field and reduce loss
US8928276B2 (en) 2008-09-27 2015-01-06 Witricity Corporation Integrated repeaters for cell phone applications
US9577436B2 (en) 2008-09-27 2017-02-21 Witricity Corporation Wireless energy transfer for implantable devices
US8441154B2 (en) 2008-09-27 2013-05-14 Witricity Corporation Multi-resonator wireless energy transfer for exterior lighting
US8487480B1 (en) 2008-09-27 2013-07-16 Witricity Corporation Wireless energy transfer resonator kit
US9105959B2 (en) 2008-09-27 2015-08-11 Witricity Corporation Resonator enclosure
JP2012504387A (ja) * 2008-09-27 2012-02-16 ウィトリシティ コーポレーション 無線エネルギー伝達システム
US9544683B2 (en) 2008-09-27 2017-01-10 Witricity Corporation Wirelessly powered audio devices
US8933594B2 (en) 2008-09-27 2015-01-13 Witricity Corporation Wireless energy transfer for vehicles
US9106203B2 (en) 2008-09-27 2015-08-11 Witricity Corporation Secure wireless energy transfer in medical applications
US8947186B2 (en) 2008-09-27 2015-02-03 Witricity Corporation Wireless energy transfer resonator thermal management
US9601270B2 (en) 2008-09-27 2017-03-21 Witricity Corporation Low AC resistance conductor designs
US8723366B2 (en) 2008-09-27 2014-05-13 Witricity Corporation Wireless energy transfer resonator enclosures
US8901779B2 (en) 2008-09-27 2014-12-02 Witricity Corporation Wireless energy transfer with resonator arrays for medical applications
US9093853B2 (en) 2008-09-27 2015-07-28 Witricity Corporation Flexible resonator attachment
US8598743B2 (en) 2008-09-27 2013-12-03 Witricity Corporation Resonator arrays for wireless energy transfer
US8692412B2 (en) 2008-09-27 2014-04-08 Witricity Corporation Temperature compensation in a wireless transfer system
US8400017B2 (en) 2008-09-27 2013-03-19 Witricity Corporation Wireless energy transfer for computer peripheral applications
US9396867B2 (en) 2008-09-27 2016-07-19 Witricity Corporation Integrated resonator-shield structures
US8907531B2 (en) 2008-09-27 2014-12-09 Witricity Corporation Wireless energy transfer with variable size resonators for medical applications
US9035499B2 (en) 2008-09-27 2015-05-19 Witricity Corporation Wireless energy transfer for photovoltaic panels
US8587155B2 (en) * 2008-09-27 2013-11-19 Witricity Corporation Wireless energy transfer using repeater resonators
US8461722B2 (en) 2008-09-27 2013-06-11 Witricity Corporation Wireless energy transfer using conducting surfaces to shape field and improve K
US8912687B2 (en) 2008-09-27 2014-12-16 Witricity Corporation Secure wireless energy transfer for vehicle applications
EP2345100B1 (en) 2008-10-01 2018-12-05 Massachusetts Institute of Technology Efficient near-field wireless energy transfer using adiabatic system variations
US8798829B2 (en) * 2008-11-07 2014-08-05 Toyota Jidosha Kabushiki Kaisha Power feeding system for vehicle, electrically powered vehicle and power feeding apparatus for vehicle
EP2199142B1 (en) * 2008-12-22 2013-04-17 Aisin Aw Co., Ltd. Guidance device for charging vehicle battery
DE102009013694A1 (de) * 2009-03-20 2010-09-23 Paul Vahle Gmbh & Co. Kg Energieübertragungssystem mit mehreren Primärspulen
DE102009033239C5 (de) * 2009-07-14 2023-05-17 Conductix-Wampfler Gmbh Vorrichtung zur induktiven Übertragung elektrischer Energie
RU2523708C2 (ru) * 2009-08-19 2014-07-20 Конинклейке Филипс Электроникс Н.В. Электронное устройство и чашечная присоска, пригодная для такого электронного устройства
KR20110050831A (ko) * 2009-11-09 2011-05-17 삼성전자주식회사 배터리 충전 시스템에서 무접점 충전을 지원하기 위한 장치 및 방법
US20110133726A1 (en) * 2009-12-09 2011-06-09 Alexander Ballantyne Precision alignment system
JP5763675B2 (ja) * 2010-01-05 2015-08-12 アクセス ビジネス グループ インターナショナル リミテッド ライアビリティ カンパニー 電気車両用の誘導充電システム
JP5526795B2 (ja) 2010-01-15 2014-06-18 ソニー株式会社 ワイヤレス給電システム
JP2011188733A (ja) * 2010-02-12 2011-09-22 Semiconductor Energy Lab Co Ltd 移動体、無線給電システムおよび無線給電方法
CN106972642A (zh) * 2010-03-10 2017-07-21 无线电力公司 无线能量转移转换器
JP4905571B2 (ja) * 2010-03-10 2012-03-28 トヨタ自動車株式会社 車両の駐車支援装置およびそれを備える車両
JP5051257B2 (ja) * 2010-03-16 2012-10-17 トヨタ自動車株式会社 車両
JP5290228B2 (ja) * 2010-03-30 2013-09-18 株式会社日本自動車部品総合研究所 電圧検出器、異常検出装置、非接触送電装置、非接触受電装置、非接触給電システムおよび車両
US9561730B2 (en) 2010-04-08 2017-02-07 Qualcomm Incorporated Wireless power transmission in electric vehicles
US10343535B2 (en) * 2010-04-08 2019-07-09 Witricity Corporation Wireless power antenna alignment adjustment system for vehicles
JP5408343B2 (ja) 2010-04-21 2014-02-05 トヨタ自動車株式会社 車両の駐車支援装置およびそれを備える電動車両
EP2564486B1 (en) 2010-04-26 2020-09-16 Proterra Inc. Systems and methods for automatic connection and charging of an electric vehicle at a charging station
JP5139469B2 (ja) * 2010-04-27 2013-02-06 株式会社日本自動車部品総合研究所 コイルユニットおよび非接触給電システム
KR101616365B1 (ko) 2010-05-19 2016-04-28 퀄컴 인코포레이티드 적응형 무선 에너지 전송 시스템
US20110302078A1 (en) 2010-06-02 2011-12-08 Bryan Marc Failing Managing an energy transfer between a vehicle and an energy transfer system
EP2580844A4 (en) 2010-06-11 2016-05-25 Mojo Mobility Inc WIRELESS POWER TRANSFER SYSTEM SUPPORTING INTEROPERABILITY AND MULTIPOLAR MAGNETS FOR USE WITH THIS SYSTEM
US20130119781A1 (en) * 2010-07-29 2013-05-16 Toyota Jidosha Kabushiki Kaisha Resonance type non-contact power supply system
US8482250B2 (en) * 2010-08-06 2013-07-09 Cynetic Designs Ltd. Inductive transmission of power and data through ceramic armor panels
US9602168B2 (en) 2010-08-31 2017-03-21 Witricity Corporation Communication in wireless energy transfer systems
CN103119829B (zh) * 2010-10-01 2016-01-06 松下知识产权经营株式会社 电动汽车的供电系统以及用于该系统的电动汽车和供电装置
KR101842308B1 (ko) 2010-10-29 2018-03-26 퀄컴 인코포레이티드 커플링된 기생 공진기들을 통한 무선 에너지 전송
EP2651008B1 (en) 2010-12-01 2016-11-23 Toyota Jidosha Kabushiki Kaisha Wireless power feeding apparatus, vehicle, and method of controlling wireless power feeding system
US9379780B2 (en) * 2010-12-16 2016-06-28 Qualcomm Incorporated Wireless energy transfer and continuous radio station signal coexistence
DE102010054848A1 (de) * 2010-12-16 2012-06-21 Conductix-Wampfler Ag Vorrichtung zur induktiven Übertragung elektrischer Energie
US9197093B2 (en) 2010-12-24 2015-11-24 Toyota Jidosha Kabushiki Kaisha Non-contact charging system, non-contact charging method, non-contact charging type vehicle, and non-contact charging management apparatus
US9178369B2 (en) 2011-01-18 2015-11-03 Mojo Mobility, Inc. Systems and methods for providing positioning freedom, and support of different voltages, protocols, and power levels in a wireless power system
US9496732B2 (en) 2011-01-18 2016-11-15 Mojo Mobility, Inc. Systems and methods for wireless power transfer
US11342777B2 (en) 2011-01-18 2022-05-24 Mojo Mobility, Inc. Powering and/or charging with more than one protocol
US10115520B2 (en) 2011-01-18 2018-10-30 Mojo Mobility, Inc. Systems and method for wireless power transfer
JP5218576B2 (ja) * 2011-02-03 2013-06-26 株式会社デンソー 非接触給電制御装置及び非接触給電システム
US9184633B2 (en) 2011-02-03 2015-11-10 Denso Corporation Non-contact power supply control device, non-contact power supply system, and non-contact power charge system
JP5549748B2 (ja) * 2011-02-15 2014-07-16 トヨタ自動車株式会社 車両および外部給電装置
EP2688181B1 (en) * 2011-03-18 2018-12-26 Yazaki Corporation Power supply system
DE102011006504A1 (de) 2011-03-31 2012-10-04 Robert Bosch Gmbh Verfahren zum Positionieren eines Kraftfahrzeugs
US10090885B2 (en) * 2011-04-13 2018-10-02 Qualcomm Incorporated Antenna alignment and vehicle guidance for wireless charging of electric vehicles
CN103748761B (zh) * 2011-05-12 2018-09-11 株式会社 Ihi 车辆以及非接触供电系统
JP5737012B2 (ja) * 2011-07-01 2015-06-17 富士通株式会社 電力供給システム、電力供給方法及び電力供給装置
US9948145B2 (en) 2011-07-08 2018-04-17 Witricity Corporation Wireless power transfer for a seat-vest-helmet system
US9379571B2 (en) * 2011-07-11 2016-06-28 Delphi Technologies, Inc. Electrical charging system having energy coupling arrangement for wireless energy transmission therebetween
DE102011108386A1 (de) 2011-07-22 2013-01-24 Audi Ag Verfahren zum Aufladen einer Traktionsbatterie, Vorrichtung zum Übertragen von Energie an ein Elektrofahrzeug und Kraftwagen
CN108110907B (zh) 2011-08-04 2022-08-02 韦特里西提公司 可调谐无线电源架构
US20130033228A1 (en) * 2011-08-05 2013-02-07 Evatran Llc Method and apparatus for inductively transferring ac power between a charging unit and a vehicle
US9631950B2 (en) 2011-08-05 2017-04-25 Evatran Group, Inc. Method and apparatus for aligning a vehicle with an inductive charging system
US20130038276A1 (en) * 2011-08-11 2013-02-14 Evatran Llc Secondary coil structure of inductive charging system for electric vehicles
US20130037339A1 (en) * 2011-08-12 2013-02-14 Delphi Technologies, Inc. Parking assist for a vehicle equipped with for wireless vehicle charging
CN103874601A (zh) * 2011-08-16 2014-06-18 核科学股份有限公司 架空电力传送系统
ES2558182T3 (es) 2011-09-09 2016-02-02 Witricity Corporation Detección de objetos extraños en sistemas de transferencia de energía inalámbricos
US20130062966A1 (en) 2011-09-12 2013-03-14 Witricity Corporation Reconfigurable control architectures and algorithms for electric vehicle wireless energy transfer systems
WO2013039160A1 (ja) * 2011-09-13 2013-03-21 株式会社Ihi 移動車両給電システム
JP5803475B2 (ja) * 2011-09-16 2015-11-04 株式会社Ihi 移動車両給電システム
DE102011114321A1 (de) 2011-09-24 2013-03-28 Volkswagen Aktiengesellschaft Steckereinrichtung, Steckeraufnahme und System zur elektrischen Kopplung eines Fahrzeugs mit einer Ladestation sowie entsprechendes Verfahren
DE102011083427A1 (de) * 2011-09-26 2013-03-28 Siemens Aktiengesellschaft System zur Positionsbestimmung von zueinander beweglichen Objekten
JP5665710B2 (ja) * 2011-09-26 2015-02-04 株式会社東芝 無線電力伝送システム、送電装置及び受電装置
JP5781882B2 (ja) * 2011-09-29 2015-09-24 トヨタ自動車株式会社 送電装置、車両および電力伝送システム
KR20130035905A (ko) 2011-09-30 2013-04-09 삼성전자주식회사 무선 충전 장치 및 방법
US8816637B2 (en) * 2011-10-06 2014-08-26 Ford Global Technologies, Llc Vehicle guidance system with interface
US8483899B2 (en) 2011-10-06 2013-07-09 Ford Global Technologies, Llc Vehicle guidance system
US9318257B2 (en) 2011-10-18 2016-04-19 Witricity Corporation Wireless energy transfer for packaging
DE102011116253B3 (de) * 2011-10-18 2012-05-24 Audi Ag Fahrzeug mit Elektroantrieb mit Abschirmelement gegen elektromagnetische Strahlung
FR2981626B1 (fr) * 2011-10-19 2013-12-20 Peugeot Citroen Automobiles Sa Procede d'aide au positionnement d'un vehicule electrique ou hybride
US9184598B2 (en) * 2011-10-26 2015-11-10 Leggett & Platt Canada Co. Signal discrimination for wireless key fobs and interacting systems
US9673664B2 (en) 2011-10-27 2017-06-06 Toyota Jidosha Kabushiki Kaisha Wireless power reception apparatus, wireless power transmission apparatus, and wireless power transmission and reception system
US9145110B2 (en) * 2011-10-27 2015-09-29 Ford Global Technologies, Llc Vehicle wireless charger safety system
KR20140085591A (ko) 2011-11-04 2014-07-07 위트리시티 코포레이션 무선 에너지 전송 모델링 툴
JP5772535B2 (ja) * 2011-11-18 2015-09-02 トヨタ自動車株式会社 電力伝送システム及び車両
EP2784907A4 (en) * 2011-11-24 2015-09-16 Toyota Motor Co Ltd POWER TRANSMISSION DEVICE, VEHICLE, AND NON-CONTACT ENERGY TRANSMISSION / RECEPTION SYSTEM
DE102012105037B4 (de) * 2011-11-24 2017-04-06 Avl Software And Functions Gmbh Vorrichtung zur berührungslosen Energieübertragung, Leiterplatte mit einer Primärspulenanordnung und eine Ladestation
DE102011056807A1 (de) * 2011-12-21 2013-06-27 Thyssenkrupp Electrical Steel Gmbh Magnetfeldabschirmung für elektromagnetische Felder und Fahrzeug mit integrierter Magnetfeldabschirmung
JP5829923B2 (ja) * 2012-01-11 2015-12-09 小島プレス工業株式会社 非接触電力伝送システムの構成方法
US9306635B2 (en) 2012-01-26 2016-04-05 Witricity Corporation Wireless energy transfer with reduced fields
US8933589B2 (en) 2012-02-07 2015-01-13 The Gillette Company Wireless power transfer using separately tunable resonators
US9722447B2 (en) 2012-03-21 2017-08-01 Mojo Mobility, Inc. System and method for charging or powering devices, such as robots, electric vehicles, or other mobile devices or equipment
US9555716B2 (en) 2012-03-21 2017-01-31 Ford Global Technologies, Llc Automotive vehicle charge system
US20130271069A1 (en) 2012-03-21 2013-10-17 Mojo Mobility, Inc. Systems and methods for wireless power transfer
WO2013142866A1 (en) 2012-03-23 2013-09-26 Hevo Inc. Systems and mobile application for electric wireless charging stations
GB2500691B (en) * 2012-03-30 2016-06-15 Jaguar Land Rover Ltd Charging system for a vehicle
EP2845290B1 (en) 2012-05-03 2018-08-29 Powermat Technologies Ltd. System and method for triggering power transfer across an inductive power coupling and non resonant transmission
JP5348676B1 (ja) * 2012-05-30 2013-11-20 ニチユ三菱フォークリフト株式会社 充電システム
US9343922B2 (en) 2012-06-27 2016-05-17 Witricity Corporation Wireless energy transfer for rechargeable batteries
US10256657B2 (en) 2015-12-24 2019-04-09 Energous Corporation Antenna having coaxial structure for near field wireless power charging
US10992187B2 (en) 2012-07-06 2021-04-27 Energous Corporation System and methods of using electromagnetic waves to wirelessly deliver power to electronic devices
US10063105B2 (en) 2013-07-11 2018-08-28 Energous Corporation Proximity transmitters for wireless power charging systems
US10992185B2 (en) 2012-07-06 2021-04-27 Energous Corporation Systems and methods of using electromagnetic waves to wirelessly deliver power to game controllers
US9876394B1 (en) 2014-05-07 2018-01-23 Energous Corporation Boost-charger-boost system for enhanced power delivery
US10965164B2 (en) 2012-07-06 2021-03-30 Energous Corporation Systems and methods of wirelessly delivering power to a receiver device
US9867062B1 (en) 2014-07-21 2018-01-09 Energous Corporation System and methods for using a remote server to authorize a receiving device that has requested wireless power and to determine whether another receiving device should request wireless power in a wireless power transmission system
US11502551B2 (en) 2012-07-06 2022-11-15 Energous Corporation Wirelessly charging multiple wireless-power receivers using different subsets of an antenna array to focus energy at different locations
US9825674B1 (en) 2014-05-23 2017-11-21 Energous Corporation Enhanced transmitter that selects configurations of antenna elements for performing wireless power transmission and receiving functions
US10312715B2 (en) 2015-09-16 2019-06-04 Energous Corporation Systems and methods for wireless power charging
US9787103B1 (en) 2013-08-06 2017-10-10 Energous Corporation Systems and methods for wirelessly delivering power to electronic devices that are unable to communicate with a transmitter
US9859755B2 (en) 2012-07-16 2018-01-02 Qualcomm Incorporated Device alignment and identification in inductive power transfer systems
US9654184B2 (en) * 2012-07-20 2017-05-16 WIPQTUS Inc. Transmitter to receiver communication link in a wireless power system
US9287607B2 (en) 2012-07-31 2016-03-15 Witricity Corporation Resonator fine tuning
DE102012213958A1 (de) * 2012-08-07 2014-05-22 Bayerische Motoren Werke Aktiengesellschaft Fremdkörperüberwachung bei induktivem Laden
US9595378B2 (en) 2012-09-19 2017-03-14 Witricity Corporation Resonator enclosure
JP6043462B2 (ja) * 2012-09-27 2016-12-14 Ｉｈｉ運搬機械株式会社 車両給電装置
CN109969007A (zh) 2012-10-19 2019-07-05 韦特里西提公司 无线能量传输系统中的外来物检测
US11843260B2 (en) 2012-11-09 2023-12-12 California Institute Of Technology Generator unit for wireless power transfer
US11616520B2 (en) 2012-11-09 2023-03-28 California Institute Of Technology RF receiver
KR102225531B1 (ko) 2012-11-09 2021-03-08 캘리포니아 인스티튜트 오브 테크놀로지 스마트의 rf 렌싱: 효율적이고 동적이며 이동적인 무선 전력 전송
US9842684B2 (en) 2012-11-16 2017-12-12 Witricity Corporation Systems and methods for wireless power system with improved performance and/or ease of use
US9515492B2 (en) * 2012-12-06 2016-12-06 Toyota Motor Engineering & Manufacturing North America, Inc. Wireless power transfer using air gap and metamaterial
GB2510125B (en) * 2013-01-24 2015-07-08 Jaguar Land Rover Ltd Vehicle charging method and apparatus
US8823551B1 (en) 2013-03-07 2014-09-02 Delphi Technologies, Inc. System to align a vehicle within a parking location using thermal targets
KR102040739B1 (ko) 2013-03-20 2019-11-06 삼성전자주식회사 무선 전력 송수신 시스템
FR3003815B1 (fr) * 2013-03-27 2016-09-02 Renault Sa Procede pour la charge par induction d'une batterie electrique d'un vehicule automobile, station de charge, vehicule automobile et borne de charge associes
US9837846B2 (en) 2013-04-12 2017-12-05 Mojo Mobility, Inc. System and method for powering or charging receivers or devices having small surface areas or volumes
JP5870957B2 (ja) * 2013-04-26 2016-03-01 トヨタ自動車株式会社 受電装置、駐車支援装置、車両および電力伝送システム
CN105189184B (zh) * 2013-04-26 2017-07-21 丰田自动车株式会社 受电装置、送电装置、电力传送系统及停车辅助装置
JP5857999B2 (ja) * 2013-04-26 2016-02-10 トヨタ自動車株式会社 受電装置、駐車支援装置、および電力伝送システム
DE102013208005A1 (de) * 2013-05-02 2014-11-06 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Betreiben einer kontaktlosen Ladeeinrichtung
FR3005612B1 (fr) 2013-05-14 2016-11-18 Schneider Electric Ind Sas Dispositif de charge par induction de batteries d'un vehicule automobile electrique
DE102014208991A1 (de) * 2013-05-15 2014-11-20 Ford Global Technologies, Llc Sicherheitssystem für drahtloses Fahrzeugaufladegerät
US10069336B2 (en) 2013-06-28 2018-09-04 Siemens Aktiengesellschaft Inductive charging device, electric vehicle, charging station, and method for inductive charging
US9505314B2 (en) * 2013-08-09 2016-11-29 Qualcomm Incorporated Systems, methods, and apparatus related to detecting and identifying electric vehicle and charging station
US9857821B2 (en) 2013-08-14 2018-01-02 Witricity Corporation Wireless power transfer frequency adjustment
JP6110758B2 (ja) * 2013-08-26 2017-04-05 本田技研工業株式会社 車両誘導装置
US9787099B2 (en) * 2013-09-12 2017-10-10 Kohler, Co. Automatic diagnosis or repair for a generator controller
DE102013110280A1 (de) * 2013-09-18 2015-03-19 Paul Vahle Gmbh & Co. Kg Positionsbestimmungssystem für Fahrzeuge
US9461500B2 (en) * 2013-11-21 2016-10-04 Htc Corporation Wireless charging receiving device and wireless charging system using the same
CN103633697A (zh) * 2013-11-22 2014-03-12 北京航空航天大学 电磁感应式非接触充电系统及其对准方法
GB2520555B (en) * 2013-11-26 2021-03-10 Ford Global Tech Llc A motor vehicle having an energy storage device
EP3080894B1 (en) * 2013-12-03 2018-07-04 Utah State University Determining physical alignment between magnetic couplers
GB2520990A (en) * 2013-12-06 2015-06-10 Bombardier Transp Gmbh Inductive power transfer for transferring electric energy to a vehicle
JP5979125B2 (ja) * 2013-12-11 2016-08-24 トヨタ自動車株式会社 非接触送電装置
JP6156115B2 (ja) * 2013-12-13 2017-07-05 トヨタ自動車株式会社 送電装置
JP6427873B2 (ja) * 2013-12-20 2018-11-28 株式会社Ihi 駐車支援装置及びシステム
US20150180264A1 (en) * 2013-12-20 2015-06-25 Cambridge Silicon Radio Limited Antenna for wireless charging
JP6361132B2 (ja) 2013-12-24 2018-07-25 トヨタ自動車株式会社 非接触電力伝送システム、充電ステーション、および車両
US10090712B2 (en) 2014-01-30 2018-10-02 Hewlett-Packard Development Company, L.P. Wireless power alignment
US9780573B2 (en) 2014-02-03 2017-10-03 Witricity Corporation Wirelessly charged battery system
US9952266B2 (en) 2014-02-14 2018-04-24 Witricity Corporation Object detection for wireless energy transfer systems
US9772401B2 (en) * 2014-03-17 2017-09-26 Qualcomm Incorporated Systems, methods, and apparatus for radar-based detection of objects in a predetermined space
JP6060330B2 (ja) * 2014-03-24 2017-01-18 トヨタ自動車株式会社 受電装置、車両、および送電装置
JP6199789B2 (ja) 2014-03-31 2017-09-20 Ｉｈｉ運搬機械株式会社 非接触給電システムと車両給電装置
DE102014206739A1 (de) * 2014-04-08 2015-10-08 Bayerische Motoren Werke Aktiengesellschaft Schubfeld für einen Vorderwagen einer Fahrzeugkarosserie eines Fahrzeugs und Fahrzeug
WO2015161035A1 (en) 2014-04-17 2015-10-22 Witricity Corporation Wireless power transfer systems with shield openings
US9842687B2 (en) 2014-04-17 2017-12-12 Witricity Corporation Wireless power transfer systems with shaped magnetic components
US9837860B2 (en) 2014-05-05 2017-12-05 Witricity Corporation Wireless power transmission systems for elevators
EP3140680B1 (en) 2014-05-07 2021-04-21 WiTricity Corporation Foreign object detection in wireless energy transfer systems
US20150336464A1 (en) * 2014-05-23 2015-11-26 Ford Global Technologies, Llc Ultrasonic location for electric vehicle charging system
US9463705B2 (en) * 2014-06-10 2016-10-11 Qualcomm Incorporated System and method for adaptive charging compliance control
WO2015196123A2 (en) 2014-06-20 2015-12-23 Witricity Corporation Wireless power transfer systems for surfaces
US9842688B2 (en) 2014-07-08 2017-12-12 Witricity Corporation Resonator balancing in wireless power transfer systems
CN104052137A (zh) * 2014-07-08 2014-09-17 国家电网公司 一种大功率无线电力传输系统
US10574091B2 (en) 2014-07-08 2020-02-25 Witricity Corporation Enclosures for high power wireless power transfer systems
DE102014109893B4 (de) * 2014-07-15 2019-10-31 Paul Vahle Gmbh & Co. Kg Bestimmung der Lage einer Pickup relativ zur Primäranordnung eines induktiven Energieübertragungssystems
KR20160021332A (ko) 2014-08-14 2016-02-25 현대자동차주식회사 무선 충전 장치의 제어 방법
WO2016028939A1 (en) * 2014-08-19 2016-02-25 California Institute Of Technology Wireless power transfer
US9649948B2 (en) * 2014-08-25 2017-05-16 Ford Global Technologies, Llc Self-locating multi-coil system for wireless vehicle charging
US9889754B2 (en) * 2014-09-09 2018-02-13 Qualcomm Incorporated System and method for reducing leakage flux in wireless electric vehicle charging systems
US9597971B2 (en) * 2014-09-16 2017-03-21 Qualcomm Incorporated Methods and systems for compatible operation between a wireless power transfer system and vehicle remote entry systems
WO2016045117A1 (en) * 2014-09-28 2016-03-31 Intel Corporation Wireless charger coupling for electronic devices
DE102014114640A1 (de) * 2014-10-09 2016-04-14 Paul Vahle Gmbh & Co. Kg Induktives Energieübertragungssystem mit breiter Primäranordnung
JP6550718B2 (ja) 2014-10-28 2019-07-31 トヨタ自動車株式会社 電力伝送システム
DE102014017544A1 (de) * 2014-11-28 2016-06-02 Sew-Eurodrive Gmbh & Co Kg Verfahren und System zum induktiven Übertragen von elektrischer Energie an ein Fahrzeug
EP3241223A4 (en) * 2014-12-31 2018-06-13 Massachusetts Institute Of Technology Adaptive control of wireless power transfer
CN104485723A (zh) * 2014-12-31 2015-04-01 深圳市泰金田科技有限公司 电动汽车无线充电装置定位系统
US9843217B2 (en) 2015-01-05 2017-12-12 Witricity Corporation Wireless energy transfer for wearables
CN104648177B (zh) * 2015-02-11 2016-09-21 吴宗群 一种汽车无线充电伸缩装置
KR20160100755A (ko) * 2015-02-16 2016-08-24 엘지이노텍 주식회사 무선전력 송신장치 및 송신방법
JP6176272B2 (ja) * 2015-02-27 2017-08-09 トヨタ自動車株式会社 電力伝送システム
DE102015203796A1 (de) * 2015-03-03 2016-09-08 Siemens Aktiengesellschaft Verwendung und Anordnung von Pencake-Spulen zur drahtlosen Energieübertragung an Elektrofahrzeuge
JP5931241B1 (ja) * 2015-03-05 2016-06-08 セイコーインスツル株式会社 アンテナユニットおよび携帯型電子機器
JP6172185B2 (ja) 2015-03-11 2017-08-02 トヨタ自動車株式会社 受電装置および送電装置
US9845018B2 (en) 2015-05-06 2017-12-19 Toyota Motor Engineering & Manufacturing North America, Inc. Self-aligning wireless power transfer
EP3103674B1 (de) 2015-06-12 2021-08-18 Brusa Elektronik AG Positionsbestimmungssystem, verfahren zur positionsbestimmung und system zur induktiven energieübertragung mit positionsbestimmungssystem
US10778041B2 (en) 2015-09-16 2020-09-15 Energous Corporation Systems and methods for generating power waves in a wireless power transmission system
US11710321B2 (en) 2015-09-16 2023-07-25 Energous Corporation Systems and methods of object detection in wireless power charging systems
DE102015218410A1 (de) * 2015-09-24 2017-03-30 Continental Automotive Gmbh Verfahren und Einrichtung zum Bestimmen der Absolutposition eines Fahrzeuges
DE102015218437A1 (de) 2015-09-25 2017-03-30 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung einer Induktionsspule
US10248899B2 (en) 2015-10-06 2019-04-02 Witricity Corporation RFID tag and transponder detection in wireless energy transfer systems
US10734717B2 (en) 2015-10-13 2020-08-04 Energous Corporation 3D ceramic mold antenna
US9929721B2 (en) 2015-10-14 2018-03-27 Witricity Corporation Phase and amplitude detection in wireless energy transfer systems
US10063110B2 (en) 2015-10-19 2018-08-28 Witricity Corporation Foreign object detection in wireless energy transfer systems
EP3365958B1 (en) 2015-10-22 2020-05-27 WiTricity Corporation Dynamic tuning in wireless energy transfer systems
US10063108B1 (en) * 2015-11-02 2018-08-28 Energous Corporation Stamped three-dimensional antenna
US10486538B2 (en) * 2015-11-02 2019-11-26 Hyundai America Technical Center, Inc. Electromagnetic field controlling system and method for vehicle wireless charging system
US10075019B2 (en) 2015-11-20 2018-09-11 Witricity Corporation Voltage source isolation in wireless power transfer systems
US10038332B1 (en) 2015-12-24 2018-07-31 Energous Corporation Systems and methods of wireless power charging through multiple receiving devices
US10079515B2 (en) 2016-12-12 2018-09-18 Energous Corporation Near-field RF charging pad with multi-band antenna element with adaptive loading to efficiently charge an electronic device at any position on the pad
US11863001B2 (en) 2015-12-24 2024-01-02 Energous Corporation Near-field antenna for wireless power transmission with antenna elements that follow meandering patterns
US20170182903A1 (en) * 2015-12-26 2017-06-29 Intel Corporation Technologies for wireless charging of electric vehicles
US10759281B2 (en) * 2016-01-19 2020-09-01 Ford Global Technologies, Llc Controlling operation of electrified vehicle travelling on inductive roadway to influence electrical grid
CN105539186B (zh) * 2016-01-20 2017-07-07 厦门新页科技有限公司 一种汽车无线充电对准匹配系统及方法
US10263473B2 (en) 2016-02-02 2019-04-16 Witricity Corporation Controlling wireless power transfer systems
WO2017139406A1 (en) 2016-02-08 2017-08-17 Witricity Corporation Pwm capacitor control
KR101887738B1 (ko) * 2016-03-11 2018-08-10 현대자동차주식회사 무선 전력 전송 코일의 얼라인먼트 방법 및 이를 이용하는 장치
DE102016205352A1 (de) 2016-03-31 2017-10-05 Bayerische Motoren Werke Aktiengesellschaft Primärspuleneinheit
DE102016205711A1 (de) 2016-04-06 2017-10-12 Robert Bosch Gmbh Verfahren zum Positionieren eines Kraftfahrzeugs
US10284028B2 (en) 2016-05-27 2019-05-07 Wireless Advanced Vehicle Electrification, Inc. Checking alignment of inductive charge pads in motion
KR102550114B1 (ko) * 2016-06-16 2023-06-29 현대자동차주식회사 코일 정렬 방법 및 이를 이용하는 전기차 무선 전력 전송 장치
US10173542B2 (en) * 2016-06-16 2019-01-08 Ford Global Technologies, Llc Wireless charging system coil alignment
TWI692422B (zh) * 2016-06-21 2020-05-01 飛宏科技股份有限公司 具淹水監測之升降式充電裝置
US10547208B2 (en) 2016-06-23 2020-01-28 Qualcomm Incorporated Wireless power transmit resonator
KR101985490B1 (ko) * 2016-07-25 2019-06-03 최봉호 무선 충전 디바이스 및 이를 이용한 차량 무선 충전 방법
US10369894B2 (en) 2016-10-21 2019-08-06 Hevo, Inc. Parking alignment sequence for wirelessly charging an electric vehicle
CN106541844B (zh) * 2016-10-26 2020-04-10 深圳市沃尔核材股份有限公司 无线充电线圈对准方法、装置及系统
WO2018076214A1 (zh) * 2016-10-26 2018-05-03 深圳市沃尔核材股份有限公司 无线充电线圈对准方法、装置及系统
US10923954B2 (en) 2016-11-03 2021-02-16 Energous Corporation Wireless power receiver with a synchronous rectifier
KR102349607B1 (ko) 2016-12-12 2022-01-12 에너저스 코포레이션 전달되는 무선 전력을 최대화하기 위한 근접장 충전 패드의 안테나 존들을 선택적으로 활성화시키는 방법
US10680319B2 (en) 2017-01-06 2020-06-09 Energous Corporation Devices and methods for reducing mutual coupling effects in wireless power transmission systems
US10439442B2 (en) 2017-01-24 2019-10-08 Energous Corporation Microstrip antennas for wireless power transmitters
DE102017130173A1 (de) * 2017-02-24 2018-08-30 Denso Ten Limited Ladeunterstützungsvorrichtung
WO2018183892A1 (en) 2017-03-30 2018-10-04 Energous Corporation Flat antennas having two or more resonant frequencies for use in wireless power transmission systems
KR102027983B1 (ko) * 2017-04-05 2019-10-04 한국전력공사 지상변압기를 이용한 전기차 충전 장치 및 전기차 충전 방법
US11139686B2 (en) 2017-04-13 2021-10-05 Richard Marion Mansell System and method for wireless transmission of power
US20180304759A1 (en) 2017-04-19 2018-10-25 Arnold Chase Intelligent vehicle charging equipment
US10128697B1 (en) 2017-05-01 2018-11-13 Hevo, Inc. Detecting and deterring foreign objects and living objects at wireless charging stations
US11462949B2 (en) 2017-05-16 2022-10-04 Wireless electrical Grid LAN, WiGL Inc Wireless charging method and system
CN107199901B (zh) * 2017-05-25 2020-04-14 南京农业大学 一种法线式多线圈聚磁的电动汽车无线充电装置
CN107128201A (zh) * 2017-05-25 2017-09-05 南京农业大学 一种耦合器单方向绕线的电动汽车无线充电装置
EP3631946A4 (en) 2017-05-30 2020-12-09 Wireless Advanced Vehicle Electrification Inc. SINGLE-POWERED MULTI-DOCKING RANGE WIRELESS CHARGING
JP6527554B2 (ja) * 2017-06-22 2019-06-05 本田技研工業株式会社 非接触電力伝送システム
US10283952B2 (en) 2017-06-22 2019-05-07 Bretford Manufacturing, Inc. Rapidly deployable floor power system
US10848853B2 (en) 2017-06-23 2020-11-24 Energous Corporation Systems, methods, and devices for utilizing a wire of a sound-producing device as an antenna for receipt of wirelessly delivered power
WO2019006376A1 (en) 2017-06-29 2019-01-03 Witricity Corporation PROTECTION AND CONTROL OF WIRELESS POWER SYSTEMS
JP6920123B2 (ja) * 2017-07-18 2021-08-18 株式会社Ｓｕｂａｒｕ 受電装置
US10892632B2 (en) 2017-08-15 2021-01-12 Toyota Motor Engineering & Manufacturing North America, Inc. Configurable grid charging coil with active switch and sensing system
US10668828B2 (en) 2017-09-13 2020-06-02 Toyota Motor Engineering & Manufacturing North America, Inc. Multi-coil charging system for distributed in-wheel motors
US10850634B2 (en) * 2017-10-20 2020-12-01 Toyota Motor Engineering & Manufacturing North America, Inc. Multi-turn configurable grid charging coil
US11342798B2 (en) 2017-10-30 2022-05-24 Energous Corporation Systems and methods for managing coexistence of wireless-power signals and data signals operating in a same frequency band
WO2019126828A1 (en) 2017-12-22 2019-06-27 Wireless Advanced Vehicle Electrification, Inc. Wireless power transfer pad with multiple windings
US11462943B2 (en) 2018-01-30 2022-10-04 Wireless Advanced Vehicle Electrification, Llc DC link charging of capacitor in a wireless power transfer pad
US10562406B2 (en) * 2018-03-12 2020-02-18 Toyota Motor Engineering & Manufacturing North America, Inc. System and method for autonomous charging of an autonomous vehicle
CN110525238A (zh) * 2018-05-25 2019-12-03 比亚迪股份有限公司 用于轨道交通系统的无线充电系统和轨道交通系统
DE112019003293A5 (de) * 2018-06-29 2021-03-18 Brusa Elektronik Ag Fahrzeugladesystem zum Laden eines in einem Fahrzeug angeordneten Energiespeichers
FR3084974B1 (fr) * 2018-08-07 2021-10-29 Commissariat Energie Atomique Systeme de liaison electrique sans contact
CN109193958B (zh) * 2018-09-13 2021-01-15 京东方科技集团股份有限公司 无线充电装置及其充电机构和电子系统
US10988042B1 (en) 2018-10-12 2021-04-27 Arnold Chase Vehicle charging system
US11437735B2 (en) 2018-11-14 2022-09-06 Energous Corporation Systems for receiving electromagnetic energy using antennas that are minimally affected by the presence of the human body
KR20210117283A (ko) 2019-01-28 2021-09-28 에너저스 코포레이션 무선 전력 전송을 위한 소형 안테나에 대한 시스템들 및 방법들
US11444485B2 (en) 2019-02-05 2022-09-13 Mojo Mobility, Inc. Inductive charging system with charging electronics physically separated from charging coil
JP2022519749A (ja) 2019-02-06 2022-03-24 エナージャス コーポレイション アンテナアレイ内の個々のアンテナに使用するための最適位相を推定するシステム及び方法
US11329518B2 (en) * 2019-06-24 2022-05-10 Powermat Technologies Ltd. Long-range wireless charging
DE102019209324A1 (de) * 2019-06-27 2020-12-31 Vitesco Technologies GmbH Verfahren zum Positionieren eines Fahrzeugs über einer Bodenplatte zum induktiven Laden einer Fahrzeugbatterie
DE102019008519A1 (de) * 2019-12-08 2021-06-10 Tilman Röder Verfahren zur induktiven Energieübertragung für einen oder mehrere mögliche Stromverbraucher oder Stromspeicher mit zielgerichteter Positionierung mindestens einer Senderspule oder einer Empfängerspule und ein entsprechendes induktives Energieübertragungssystem sowie zugehörige Vorrichtung.
DE102020100250A1 (de) 2020-01-08 2021-07-08 Audi Aktiengesellschaft Ladevorrichtung und Empfangsvorrichtung zum induktiven Übertragen und Empfangen einer elektrischen Energie, Verfahren zum induktiven Übertragen und Empfangen einer elektrischen Energie, Ladesystem sowie Kraftfahrzeug mit einer Empfangsvorrichtung
CN112406569B (zh) * 2020-11-05 2022-09-16 宁波赛耐比光电科技有限公司 一种无线充电桩的控制装置及其控制方法
US11485246B1 (en) 2021-04-05 2022-11-01 Arnold Chase Individualized vehicular charging mat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5573090A (en) * 1994-05-05 1996-11-12 H. R. Ross Industries, Inc. Raodway-powered electric vehicle system having onboard power metering and communication channel features
US5821728A (en) * 1996-07-22 1998-10-13 Schwind; John P. Armature induction charging of moving electric vehicle batteries
US5821731A (en) * 1996-01-30 1998-10-13 Sumitomo Wiring Systems, Ltd. Connection system and connection method for an electric automotive vehicle
GB2347801A (en) * 1999-03-10 2000-09-13 Ea Tech Ltd Electric vehicle battery charger

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331225A (en) 1978-04-25 1982-05-25 Bolger John G Power control system for electrically driven vehicle
US5311973A (en) * 1992-07-31 1994-05-17 Ling-Yuan Tseng Inductive charging of a moving electric vehicle's battery
DE4235738A1 (de) * 1992-10-23 1994-04-28 Audi Ag Endseitiger Abschluß eines Fahrzeuglängsträgers
DE4236286A1 (de) 1992-10-28 1994-05-05 Daimler Benz Ag Verfahren und Anordnung zum automatischen berührungslosen Laden
JPH089512A (ja) * 1994-06-23 1996-01-12 Toyota Autom Loom Works Ltd 電動車用電磁給電装置
JPH0833112A (ja) * 1994-07-20 1996-02-02 Sumitomo Electric Ind Ltd 車両の非接触集電装置
JPH08126120A (ja) 1994-10-19 1996-05-17 Yazaki Corp 自動車の自動充電システム
JPH08237890A (ja) 1995-02-28 1996-09-13 Fuji Electric Co Ltd 自動車への非接触式電力供給装置
FR2740921A1 (fr) 1995-11-06 1997-05-09 Electricite De France Dispositif automatise de charge des batteries d'un vehicule automobile a propulsion electrique
JPH09213378A (ja) 1996-01-30 1997-08-15 Sumitomo Wiring Syst Ltd 電気自動車用充電システム
JP3586955B2 (ja) * 1996-02-02 2004-11-10 住友電装株式会社 電気自動車用充電システム
JPH10322247A (ja) * 1997-05-21 1998-12-04 Mitsubishi Electric Corp ワイヤレス伝送装置
US7064521B2 (en) * 2001-08-17 2006-06-20 O2Micro International Limited Charging circuit for parallel charging in multiple battery systems
JP2004166384A (ja) * 2002-11-12 2004-06-10 Sharp Corp 非接触型給電システムにおける電磁結合特性調整方法、給電装置、および非接触型給電システム
JP4442517B2 (ja) * 2005-06-07 2010-03-31 パナソニック電工株式会社 非接触給電装置及び自律移動装置用給電システム
AU2006269374C1 (en) * 2005-07-12 2010-03-25 Massachusetts Institute Of Technology Wireless non-radiative energy transfer
US7825543B2 (en) * 2005-07-12 2010-11-02 Massachusetts Institute Of Technology Wireless energy transfer
JP2007159359A (ja) 2005-12-08 2007-06-21 Sumitomo Electric Ind Ltd 電力転送システム、電力転送装置及び電力転送車載装置
US7952322B2 (en) * 2006-01-31 2011-05-31 Mojo Mobility, Inc. Inductive power source and charging system
JP2007294274A (ja) * 2006-04-26 2007-11-08 Matsushita Electric Ind Co Ltd 二次電池包装体
DE102007033654B4 (de) 2006-09-20 2019-08-01 Sew-Eurodrive Gmbh & Co Kg System mit Wagen und Basiseinheiten
EP2078330A2 (en) * 2006-10-25 2009-07-15 Laszlo Farkas High power wireless resonant energy transfer system transfers energy across an airgap
RU2009119727A (ru) * 2006-10-26 2010-12-10 Конинклейке Филипс Электроникс Н.В. (Nl) Индуктивная система питания и способ ее работы
JP4691000B2 (ja) * 2006-11-15 2011-06-01 三菱重工業株式会社 移動体の非接触給電装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5573090A (en) * 1994-05-05 1996-11-12 H. R. Ross Industries, Inc. Raodway-powered electric vehicle system having onboard power metering and communication channel features
US5821731A (en) * 1996-01-30 1998-10-13 Sumitomo Wiring Systems, Ltd. Connection system and connection method for an electric automotive vehicle
US5821728A (en) * 1996-07-22 1998-10-13 Schwind; John P. Armature induction charging of moving electric vehicle batteries
GB2347801A (en) * 1999-03-10 2000-09-13 Ea Tech Ltd Electric vehicle battery charger

Also Published As

Publication number Publication date
EP2584665A3 (en) 2013-05-15
CN104283331A (zh) 2015-01-14
CN102089955A (zh) 2011-06-08
EP2584665B1 (en) 2020-01-08
CN104283331B (zh) 2017-12-05
US20130278210A1 (en) 2013-10-24
KR20110026022A (ko) 2011-03-14
JP2014039462A (ja) 2014-02-27
KR20130006706A (ko) 2013-01-17
US8729859B2 (en) 2014-05-20
EP2301133A1 (en) 2011-03-30
EP2301133B1 (en) 2018-10-03
US20100117596A1 (en) 2010-05-13
EP2584665A2 (en) 2013-04-24
KR101459254B1 (ko) 2014-11-12
KR101436712B1 (ko) 2014-09-02
JP5329660B2 (ja) 2013-10-30
WO2010006078A1 (en) 2010-01-14
JP2011527884A (ja) 2011-11-04
JP2015065805A (ja) 2015-04-09
KR20130111647A (ko) 2013-10-10
JP6158159B2 (ja) 2017-07-05
US8466654B2 (en) 2013-06-18

Similar Documents

Publication Publication Date Title
CN102089955B (zh) 在规定限制下的无线高电力传送
US9994114B2 (en) Systems and methods for bi-state impedance conversion in wireless power transfer
CN103647156B (zh) 高频无线功率发射天线的自适应匹配和调谐
CN102598465B (zh) 可变无线功率发射
US9352661B2 (en) Induction power transfer system with coupling and reactance selection
US9859755B2 (en) Device alignment and identification in inductive power transfer systems
US10003217B2 (en) System and method for reducing emissions for polarized coil systems for wireless inductive power transfer
US10391871B2 (en) Controlling current flow path in wireless electric vehicle charging systems for mitigating RF radiated emissions
US9533589B2 (en) Integration of electronic components in inductive power transfer systems
CN102124604A (zh) 用于便携式无线功率充电的无线功率发射
KR20150046114A (ko) 무선 전력 전송 시스템들에서의 전력 공급 제어
US11353572B2 (en) Methods and apparatus utilizing multiple radars in object detection for wireless power transfer

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190417

Address after: Massachusetts, USA

Patentee after: Witricity Corp.

Address before: American California

Patentee before: Qualcomm Inc.