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公开(公告)号：US10926651B2
公开(公告)日：2021-02-23
申请号：US16516227
申请日：2019-07-18
Inventor： Hiroyuki Matsuo , Tetsuro Sawai
Abstract: A method for controlling a power transmitting device includes moving, if a mobile member holds a metal foreign object, the metal foreign object from a position overlapping a power transmitting coil to a position not overlapping the power transmitting coil by moving the mobile member from the position overlapping the power transmitting coil to a position not overlapping the power transmitting coil before the power transmitting coil begins to transmit power, causing the power transmitting coil to output the power, and moving, if another metal foreign object comes to a position overlapping the power transmitting coil when the mobile member is located at the position not overlapping the power transmitting coil, the other metal foreign object to a position not overlapping the power transmitting coil by returning the mobile member to the position overlapping the power transmitting coil in the state where the mobile member holds the foreign matter.
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公开(公告)号：US11329520B2
公开(公告)日：2022-05-10
申请号：US17161413
申请日：2021-01-28
Inventor： Hiroyuki Matsuo , Keisuke Fujimoto
Abstract: A power transmission device includes a power transmission coil, a magnetically shielded space created by a power transmission-side cancel coil arranged outside the power transmission coil, a moving member configured to move a metal foreign substance, and a moving mechanism configured to move a part or all of an upper surface of the moving member from an area outside the magnetically shielded space into the magnetically shielded space.
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公开(公告)号：US12257913B2
公开(公告)日：2025-03-25
申请号：US18323305
申请日：2023-05-24
Inventor： Hiroyuki Matsuo , Tetsuro Sawai
IPC: H02J7/00 , B60L50/50 , B60L53/124 , B60M7/00 , H02J50/10 , H02J50/12 , H02J50/60 , H02J50/90 , H02J50/80
Abstract: A power transmitting device includes a power transmitting coil for providing output power to a power receiving coil, a thermal sensor that detects a temperature around the power transmitting coil, and a power transmission control circuit that controls the power transmitting device. The power transmission control circuit causes the power transmitting coil to provide first output power, the power transmitting coil to provide second output power to the power receiving coil for charging a battery connected to the power receiving coil, the thermal sensor to detect the temperature around the power transmitting coil, and, if the detected temperature is equal to or higher than a threshold because of existing a metal foreign object, the power transmitting coil to reduce a level of the output power or stop the output power. The level of the first output power is lower than the level of the second output power.
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Patent Agency Ranking
公开(公告)号：US11180038B2
公开(公告)日：2021-11-23
申请号：US16424554
申请日：2019-05-29
Inventor： Hiroyuki Matsuo , Tetsuro Sawai
IPC: B60L53/124 , H02J50/10 , H02J50/40 , H02J50/60 , H02J7/02 , B60L50/50 , H02J7/00 , H02J50/12 , B60M7/00 , H02J50/90
Abstract: A method for controlling a power transmitting device includes (1) causing a power transmitting coil to output power before a power receiving coil and the power transmitting coil are electromagnetically coupled with each other and a mobile object including the power receiving coil overlaps the power transmitting coil in order for the power receiving coil and the power transmitting coil to be electromagnetically coupled with each other, (2) causing a thermal sensor to measure a surface temperature of the metal foreign object, and (3) causing, if the measured surface temperature of the metal foreign object is equal to or higher than a threshold, the power transmitting coil to reduce the power to be output or stop outputting the power.
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公开(公告)号：US10581283B2
公开(公告)日：2020-03-03
申请号：US15828917
申请日：2017-12-01
Inventor： Tetsuro Sawai , Hiroyuki Matsuo
IPC: H02J50/60 , H02J50/12 , H01F38/14 , G01V9/00 , H02J7/02 , G01K3/08 , G01V3/10 , H02J50/90 , B60L53/124 , H02J50/80 , B60L53/12
Abstract: A method for controlling a power transmitting device is a method for detecting a metal foreign object by controlling the power transmitting device including a power transmitting coil that outputs power to a power receiving coil and a thermal sensor that measures a surface temperature of the metal foreign object on the power transmitting coil. The method includes causing the power transmitting coil to output the power before the coils are electromagnetically coupled with each other and a mobile object including the power receiving coil overlaps the power transmitting coil, causing the thermal sensor to measure the surface temperature of the metal foreign object, and transmitting, if the measured surface temperature of the metal foreign object is equal to or higher than a threshold, a signal indicating presence of the metal foreign object to another receiving apparatus, other than the power transmitting device, having a function of receiving the signal.
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公开(公告)号：US11804736B2
公开(公告)日：2023-10-31
申请号：US17717717
申请日：2022-04-11
Inventor： Hiroyuki Matsuo , Keisuke Fujimoto
Abstract: A power transmission device includes a power transmission coil, a magnetically shielded space created by a power transmission-side cancel coil arranged outside the power transmission coil, a moving member configured to move a metal foreign substance, and a moving mechanism configured to move a part or all of an upper surface of the moving member from an area outside the magnetically shielded space into the magnetically shielded space.
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公开(公告)号：US11697351B2
公开(公告)日：2023-07-11
申请号：US17494411
申请日：2021-10-05
Inventor： Hiroyuki Matsuo , Tetsuro Sawai
IPC: H02J7/00 , B60L53/124 , H02J50/10 , H02J50/60 , B60L50/50 , H02J50/12 , B60M7/00 , H02J50/90 , H02J50/80
CPC classification number: B60L53/124 , B60L50/50 , B60M7/00 , H02J7/00 , H02J50/10 , H02J50/12 , H02J50/60 , H02J50/90 , H02J50/80 , Y02T10/70
Abstract: A power transmitting device includes a power transmitting coil for providing output power to a power receiving coil, a thermal sensor that detects a temperature around the power transmitting coil, and a power transmission control circuit that controls the power transmitting device. The power transmission control circuit causes the power transmitting coil to provide first output power, the power transmitting coil to provide second output power to the power receiving coil for charging a battery connected to the power receiving coil, the thermal sensor to detect the temperature around the power transmitting coil, and, if the detected temperature is equal to or higher than a threshold because of existing a metal foreign object, the power transmitting coil to reduce a level of the output power or stop the output power. The level of the first output power is lower than the level of the second output power
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公开(公告)号：US11225154B2
公开(公告)日：2022-01-18
申请号：US17151855
申请日：2021-01-19
Inventor： Hiroyuki Matsuo , Tetsuro Sawai
Abstract: A device includes a power transmitting coil that outputs power to a power receiving coil included in a mobile object, a case that includes the power transmitting coil inside thereof, a mobile member arranged on the case at a position overlapping the power transmitting coil, and a circuit that controls the power transmitting coil and the mobile member. The circuit starts to perform an operation to move the mobile member from a position overlapping the power transmitting coil to a position not overlapping the power transmitting coil before the power transmitting coil and the power receiving coil are aligned with each other, and causes the power transmitting coil to output the power to the power receiving coil.
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