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公开(公告)号：US20250026231A1
公开(公告)日：2025-01-23
申请号：US18757592
申请日：2024-06-28
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
Abstract: An information provision device acquires power receiving information and positional information on the power reception through communication from a communication device installed in a vehicle equipped with a power receiving device that receives power from a power supply device installed on a road in a contactless manner, calculates an area power consumption by aggregating the power receiving information for each area on the basis of the positional information, and visualizes the area power consumption to provide it to other devices.
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公开(公告)号：US20240428968A1
公开(公告)日：2024-12-26
申请号：US18665607
申请日：2024-05-16
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
Abstract: A coil unit includes a coil and a core member. The coil receives AC electric power transmitted in a contactless manner from an electric power transmission apparatus. The core member is formed of a directional magnetic material in sheet form. The core member is arranged on a rearward side of the coil when seen from the electric power transmission apparatus when the electric power transmission apparatus and the coil face each other. An outer shape of each of the coil and the core member is a rectangular annular shape. An orientation direction of the core member and a direction along a winding direction of the coil are orthogonal to each other in straight line portions that face each other of the coil and the core member.
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公开(公告)号：US20240322612A1
公开(公告)日：2024-09-26
申请号：US18582711
申请日：2024-02-21
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
IPC: H02J50/80 , B60L53/122 , H02J50/12
CPC classification number: H02J50/80 , H02J50/12 , B60L53/122
Abstract: A contactless electric power transmission system includes an electric power reception device and a control device. The electric power reception device receives electric power transmitted in a contactless manner between the electric power reception device and an electric power transmission device. The control device sets, in a coupling zone in which a coupling degree between a primary side coil of the electric power transmission device and a secondary side coil of the electric power reception device is equal to or more than a predetermined degree, a communication zone in which the coupling degree is relatively small, and an electric power transmission zone in which the coupling degree is relatively large. The control device transmits information relating to electric power transmission in the electric power transmission zone from the electric power reception device to the electric power transmission device by communication between the electric power transmission device and the electric power reception device when the secondary side coil is present in a foremost communication zone of the coupling zone.
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公开(公告)号：US20250115142A1
公开(公告)日：2025-04-10
申请号：US18892935
申请日：2024-09-23
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
IPC: B60L53/122 , B60L53/62
Abstract: A contactless power transmission system includes a power transmitting unit, a power transmission power conversion unit, and a power transmission side control device. The power transmitting unit has a primary coil for sending out AC power to be transmitted to a power receiving device in a non-contact manner. The power transmission power conversion unit has a plurality of transistors connected to the primary coil. The power transmission power conversion unit converts a DC power supplied from a power source unit to an AC power. The power transmission side control device sets transmission power at a start period of initial power transmission by the power transmitting unit to less than a predetermined power. The power transmission side control device changes the transmission power in a tendency of increasing toward a predetermined power as a time elapses from a start of power transmission by the power transmitting unit.
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公开(公告)号：US12176724B2
公开(公告)日：2024-12-24
申请号：US18109880
申请日：2023-02-15
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
Abstract: A power control device includes a power receiving device, a second power converting device, and a control device. The power receiving device receives electric power transmitted from a power transmitting device in a non-contact manner and outputs DC electric power. The second power converting device includes an element module including transistors forming a pair in two phases and a pair of reactors that are magnetically coupled. The second power converting device outputs arbitrary DC electric power by converting the DC electric power output from the power receiving device. The control device controls a switching operation of the element module according to a duty ratio based on a second voltage at an optimal operating point of the DC electric power input from the power receiving device to the second power converting device and a first voltage of the DC electric power output from the second power converting device.
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Patent Agency Ranking
公开(公告)号：US20240313578A1
公开(公告)日：2024-09-19
申请号：US18585099
申请日：2024-02-23
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
CPC classification number: H02J50/005 , H02J50/10
Abstract: A coil unit includes: a coil which transmits power to a power receiving device in a non-contact manner; a casing which accommodates the coil; and a core member that is inserted into an air core region of the coil and penetrates the casing to protrude outward, wherein the core member includes a frame-shaped wall portion which is disposed in the air core region and a lid portion which opens and closes an opening end of the wall portion.
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公开(公告)号：US20240048067A1
公开(公告)日：2024-02-08
申请号：US18224600
申请日：2023-07-21
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
Abstract: A power control device includes a power storage device, a rotating electric machine, a power receiving unit, and a control device. The rotating electric machine generates a travel driving force of a vehicle. The power receiving device has a power receiving unit and a power converting unit. The power receiving unit includes a secondary side coil that receives AC electric power transmitted from a power transmitting device in a non-contact manner. The power converting unit includes a plurality of switching elements (transistor) connected to the secondary side coil and converts the AC electric power received by the power receiving unit into DC electric power. The power storage device is connected to the power receiving device via the power conversion device. The control device performs a first compensation control to set power balance at input/output ends of the power storage device to zero and a second compensation control to match the power received by the power receiving unit with a power required for the travel driving force.
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公开(公告)号：US20240424920A1
公开(公告)日：2024-12-26
申请号：US18679501
申请日：2024-05-31
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
Abstract: A vehicle coil unit includes: a housing; a coil that receives AC electric power transmitted in a contactless manner from an electric power transmission apparatus; and a support member. The housing has a front surface exposed to the outside below a vehicle body. The coil that is arranged within the housing is in direct contact with the housing via a heat release member provided on an inner surface of the housing. The support member is in contact with the inner surface of the housing and the heat release member and covers a surface of the coil. A width of the support member in an orthogonal direction to a protrusion direction of the heat release member changes in an increasing tendency toward the inner surface from a front end side of the heat release member along the protrusion direction.
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公开(公告)号：US20240305138A1
公开(公告)日：2024-09-12
申请号：US18582699
申请日：2024-02-21
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
Abstract: A contactless electric power transmission system includes a drive control device and an electric power reception device. The electric power reception device includes an electric power reception portion and a reception electric power conversion portion. The electric power reception portion includes a secondary side coil and a secondary side capacitor. The secondary side coil receives AC electric power transmitted in a contactless manner from the electric power transmission device. The secondary side capacitor is connected in series to the secondary side coil. The reception electric power conversion portion converts the AC electric power received by the electric power reception portion into DC electric power. A control device sets a drive frequency of the electric power transmission device such that an average electric power received by the electric power reception portion in an electric power transmission zone of an electric power transmission device is maximized.
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公开(公告)号：US20240055910A1
公开(公告)日：2024-02-15
申请号：US18224599
申请日：2023-07-21
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jin Katsuya
Abstract: A non-contact power transmission system includes an in-vehicle communication device, a power receiving device, and a control device. The in-vehicle communication device communicates with a roadside communication device placed around a traveling path of a vehicle. The power receiving device transfers and receives electric power transmitted in a non-contact manner between a power transmitting device and the power receiving device. The control device acquires key information through communication between the roadside communication device and the in-vehicle communication device before the vehicle reaches a power transmission section of the power transmitting device. The control device causes the power transmitting device to start power transmission in response to verification of the key information, by sending information having at least the key information to the power transmitting device, through communication between the power transmitting device and the power receiving device when the vehicle is present in the power transmission section.
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