公开(公告)号：US20150180286A1

公开(公告)日：2015-06-25

申请号：US14565895

申请日：2014-12-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENICHI ASANUMA ,  HIROSHI YAMAMOTO

IPC: H02J17/00 ,  G01B7/00 ,  G01R27/26

CPC classification number: H02J50/90 ,  G01B7/003 ,  G01B2210/58 ,  G01R27/2611 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12

Abstract: A power transmission apparatus oscillates alternating current power at a first frequency (f1) which is lower than a resonant frequency (fr) of the second resonator and at a second frequency (f2) which is higher than the resonant frequency (fr). The power transmission apparatus measures an inductance value Lin (f1) and an inductance value Lin (f2). The inductance value Lin (f1) is measured when the oscillation circuit oscillates alternating current power at the first frequency (f1), and the inductance value Lin (f2) is measured when the oscillation circuit oscillates alternating current power at the second frequency (f2). The power transmission apparatus calculates a coupling coefficient k by using an expression represented by k2=1−Lin(f2)/Lin(f1), to detect relative position of the second resonator to the first resonator on the basis of the coupling coefficient k.

Abstract translation: 电力传输装置以比谐振频率（fr）高的第二频率（f2）以比第二谐振器的谐振频率（fr）低的第一频率（f1）振荡交流电力。 电力传输装置测量电感值Lin（f1）和电感值Lin（f2）。 当振荡电路以第一频率（f1）振荡交流电力时测量电感值Lin（f1），并且当振荡电路以第二频率（f2）振荡交流电力时测量电感值Lin（f2） 。 电力传输装置通过使用由k2 = 1-Lin（f2）/ Lin（f1）表示的表达式来计算耦合系数k，以基于耦合系数k检测第二谐振器相对于第一谐振器的相对位置。

公开(公告)号：US20150349541A1

公开(公告)日：2015-12-03

申请号：US14711788

申请日：2015-05-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROSHI YAMAMOTO ,  KENICHI ASANUMA ,  TSUTOMU SAKATA ,  HIROSHI KANNO

IPC: H02J5/00 ,  G01V3/10

CPC classification number: H02J50/12 ,  G01V3/10 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70

Abstract: In a first power transmission period, a power transmission device holds, in a memory, a value indicating a frequency f0 corresponding to an actual voltage value that matches a requested voltage value, then causes first AC power to be transmitted by using the frequency f0, and uses a foreign substance detector to determine whether or not a foreign substance is present. When it is determined that no foreign substance is present, in a second power transmission period, the power transmission device causes the power transmission of the first AC power to be resumed by using the value indicating the frequency f0, the value being held in the memory.

Abstract translation: 在第一电力传输期间，电力传输装置在存储器中保持表示与要求电压值相匹配的实际电压值对应的频率f0的值，然后使用频率f0发送第一交流电力， 并使用异物检测器来确定是否存在异物。 当确定没有异物存在时，在第二发电周期中，电力传输装置通过使用表示频率f0的值来恢复第一AC电力的电力传输，该值被保持在存储器中 。

公开(公告)号：US20170033615A1

公开(公告)日：2017-02-02

申请号：US15193215

申请日：2016-06-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENICHI ASANUMA ,  TSUTOMU SAKATA ,  ATSUSHI YAMAMOTO ,  HIROSHI KANNO

IPC: H02J50/60 ,  H02J7/02 ,  H02J50/12

CPC classification number: H02J50/60 ,  B60L53/12 ,  B60L53/124 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/14

Abstract: An object detecting device includes a coil array including coils, short-circuit switches connected in parallel with the coils, an oscillator circuit that outputs, to the coils, a voltage including an alternating current component, selection switches connected between the coils and the oscillator circuit, a detecting circuit that detects an object based on a change in a physical value such as voltage, and a control circuit that opens and closes the short-circuit switches and the selection switches. When a first selection switch is closed, a first short-circuit switch, which is connected to the first selection switch, is opened. The other selection switches are opened, and the other short-circuit switches are closed.

Abstract translation: 物体检测装置包括线圈阵列，包括线圈，与线圈并联连接的短路开关，振荡器电路，其向线圈输出包括交流分量的电压，连接在线圈之间的选择开关和振荡器电路 基于电压等物理值的变化来检测物体的检测电路，以及开闭短路开关和选择开关的控制电路。 当第一选择开关闭合时，连接到第一选择开关的第一短路开关被打开。 其他选择开关打开，其他短路开关闭合。

公开(公告)号：US20170040843A1

公开(公告)日：2017-02-09

申请号：US15199408

申请日：2016-06-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENICHI ASANUMA ,  TSUTOMU SAKATA ,  ATSUSHI YAMAMOTO ,  HIROSHI KANNO

IPC: H02J50/12 ,  H02J7/04 ,  H02J50/60 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J7/027 ,  H02J7/045 ,  H02J50/60 ,  H02J50/80

Abstract: A power transmitting device determines transmitting power P(t1) at a beginning of a first unit time, and transmitting power P(t2) at an end of the first unit time, stores a control parameter Q(t3) that determines a voltage of the transmitting power at a beginning of a second unit time, and a control parameter Q(t4) that determines a voltage of the transmitting power at an end of the second unit time, determines a power difference ΔP=P(t2)−P(t1) and a difference ΔQ=Q(t4)−Q(t3) in the control parameter Q, and, if the ΔP is equal to or larger than a first threshold and an absolute value of the ΔQ is equal to or larger than a second threshold, determines that there is a foreign object between a receiver resonator and a transmitter resonator and decreases the transmitting power output from an inverter circuit.

Abstract translation: 电力发送装置在第一单位时间开始时决定发送功率P（t1），并且在第一单位时间结束时发送功率P（t2），存储决定电源的控制参数Q（t3） 在第二单位时间开始时发送功率，以及决定第二单位时间结束时的发送功率的电压的控制参数Q（t4），决定功率差ΔP= P（t2）-P（t1 ）和控制参数Q中的差ΔQ= Q（t4）-Q（t3），并且如果ΔP等于或大于第一阈值，并且ΔQ的绝对值等于或大于第二阈值 确定在接收机谐振器和发射机谐振器之间存在异物并且减小从逆变器电路输出的发射功率。

公开(公告)号：US20150349543A1

公开(公告)日：2015-12-03

申请号：US14719324

申请日：2015-05-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUTOMU SAKATA ,  HIROSHI YAMAMOTO ,  HIROSHI KANNO ,  KENICHI ASANUMA

IPC: H02J5/00

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/60 ,  H02J50/70

Abstract: A power transmission device includes an inverter, an oscillator, a foreign substance detector, and a power transmission control circuitry. The power transmission control circuitry causes the foreign substance detector to perform a series of multiple processes and determine whether a foreign substance is present before a transmission of first AC power starts, and then causes the inverter to start the transmission of the first AC power. After the transmission starts, a detection period in which foreign substance detecting is performed and a power transmission period in which transmission of the first AC power is performed are repeated. The series of multiple processes is divided and performed in the multiple repeated detecting periods. The foreign substance detector is caused to divide and perform the series of multiple processes using the detecting periods and determine whether a foreign substance is present.

Abstract translation: 电力传输装置包括逆变器，振荡器，异物检测器和电力传输控制电路。 电力传输控制电路使异物检测器执行一系列多个处理，并且在第一交流电源的传输开始之前确定是否存在异物，然后使逆变器开始传输第一交流电力。 在传输开始之后，重复执行异物检测的检测周期和执行第一AC电力的传输的电力传输周期。 在多个重复检测周期中分割并执行多个处理系列。 使用异物检测器使用检测周期分割并执行一系列多个过程，并确定是否存在异物。

公开(公告)号：US20150349542A1

公开(公告)日：2015-12-03

申请号：US14712775

申请日：2015-05-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROSHI YAMAMOTO ,  KENICHI ASANUMA ,  TSUTOMU SAKATA ,  HIROSHI KANNO

IPC: H02J5/00 ,  H02J17/00

CPC classification number: H02J50/12 ,  G01V3/10 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70

Abstract: A power transmission device includes an inverter using a frequency f11 lower than a frequency f0 between a first resonator and a second resonator or a frequency f12 higher than the frequency f0 to generate a first power; an oscillator using a frequency f10 lower than a frequency fr between the first resonator and a third resonator or a frequency f20 higher than the frequency fr to generate a second power; and a power transmission control circuitry setting a foreign object detection period between first and second transmission periods, using the frequency f11 or frequency f12 in the first transmission period, using the frequency f10 or frequency f20 in the foreign object detection period, and if it is determined that a substance is present in the foreign object detection period, transmitting power in the second transmission period at a frequency different from the frequency used in the first transmission period.

Abstract translation: 电力传输装置包括使用低于第一谐振器和第二谐振器之间的频率f0的频率f11或比频率f0高的频率f12以产生第一功率的反相器; 使用低于第一谐振器和第三谐振器之间的频率fr的频率f10或比频率fr高的频率f20的振荡器以产生第二功率; 以及电力传输控制电路，使用第一发送周期中的频率f11或频率f12，在异物检测期间中使用频率f10或频率f20，在第一和第二发送期间之间设定异物检测期间，如果是 确定在异物检测期间存在物质，在第二发送期间以与第一发送期间所使用的频率不同的频率发送功率。