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公开(公告)号：US12187157B2
公开(公告)日：2025-01-07
申请号：US17672766
申请日：2022-02-16
Applicant: HONDA MOTOR CO., LTD.
Inventor： Hirokazu Oguma , Yasuo Yamada , Arata Ohishi , Minoru Nagasawa , Yoshihiro Kanamaru
Abstract: A vehicle control device includes processor configured to execute computer-readable instructions to perform. The processor is configured to acquiring a state of a first battery and a state of a second battery, acquiring at least first actual output power of the first battery, calculating a first upper power limit value based on the state of the first battery, calculating a second upper power limit value based on the state of the second battery, and controlling a power conversion process of a power convertor based on the calculated upper power limit values, requested power from a vehicle to be output to a motor, and the first actual output power. The controlling of the power conversion process includes, when output instruction content for iteratively issuing an instruction is determined, calculating the second requested power obtained by correcting currently requested power based on a difference between previously requested power and the first actual output power.
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公开(公告)号：US20240174090A1
公开(公告)日：2024-05-30
申请号：US18521546
申请日：2023-11-28
Applicant: Honda Motor Co., Ltd.
Inventor： Yasushi Ogihara , Yasuo Yamada
CPC classification number: B60L50/64 , B60L9/22 , B60L2210/14
Abstract: A power storage system has a battery, a three-phase motor in which coils of three phases are connected at a neutral point, an inverter connected on an electric power transmission path between the battery and the three-phase motor, and a DC power supply circuit connected to a connection portion positioned on an electric power transmission path between the inverter and the battery. The battery includes two power storages and a switch unit that switches between a first voltage state where the two power storages are connected in series and chargeable at a first voltage, and a second voltage state where the two power storages are connected in parallel and chargeable at a second voltage. The DC power supply circuit has a branch circuit connected to a coil of any one phase among the coils of three phases at a positive electrode side of the DC power supply circuit.
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公开(公告)号：US20220297573A1
公开(公告)日：2022-09-22
申请号：US17667591
申请日：2022-02-09
Applicant: HONDA MOTOR CO., LTD.
Inventor： Hirokazu Oguma , Yoshihiro Kanamaru , Yasuo Yamada
Abstract: A vehicle control device includes a processor configured to execute computer-readable instructions to perform. The processor is configured to acquiring a state of a first battery and a state of a second battery having lower capacity and higher power than the first battery, calculating a first upper power limit value based on the state of the first battery, calculating a second upper power limit value based on the state of the second battery, and calculating a power output ratio between amounts of electric power to be supplied from the first battery and the second battery to a motor that outputs motive power for traveling based on the first upper power limit value and the second upper power limit value, and controlling electric power to be output to the motor based on a traveling mode of a vehicle, a maximum driving force in the motor, and the power output ratio. The controlling of the electric power includes changes the maximum amount of electric power based on whether or not the traveling mode is a first traveling mode in which traveling performance has higher priority than that in another traveling mode.
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公开(公告)号：US20250135950A1
公开(公告)日：2025-05-01
申请号：US18923705
申请日：2024-10-23
Applicant: HONDA MOTOR CO., LTD.
Inventor： Yasushi OGIHARA , Satoshi Hashino , Yasuo Yamada
Abstract: A power storage system includes: a battery including a first power storage, a second power storage, and a first switch unit; a three-phase motor in which coils of three phases are connected at a neutral point, the three-phase motor being driven by electric power supplied from the battery; an inverter connected on an electric power transmission path between the battery and the three-phase motor; a DC power supply circuit connected to a first connection portion positioned on an electric power transmission path between the inverter and the battery; a capacitor provided on the electric power transmission path between the battery and the three-phase motor; and a branch circuit that branches off from the DC power supply circuit on a positive electrode side and is connected to a coil of any one phase among the coils of three phases. The first switch unit includes a semiconductor switch.
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公开(公告)号：US20240297511A1
公开(公告)日：2024-09-05
申请号：US18582687
申请日：2024-02-21
Applicant: HONDA MOTOR CO., LTD.
Inventor： Daichi WATANABE , Yasushi Ogihara , Yasuo Yamada
IPC: H02J7/00 , H01M10/42 , H01M10/613 , H01M10/625 , H01M50/233 , H01M50/264
CPC classification number: H02J7/00309 , H01M10/425 , H01M10/613 , H01M50/233 , H01M50/264 , H02J7/0048 , H02J7/007194 , H01M2010/4271 , H01M10/625
Abstract: A power supply system includes a battery pack including a solid-state battery cell and a restraining member, and a battery control device which controls power on charge and discharge of the battery pack. During a charge of the battery pack, the restraining member is compressed due to expansion of the solid-state battery cell, and a surface pressure applied to the solid-state battery cell is increased. During a discharge of the battery pack, the restraining member is restored due to contraction of the solid-state battery cell, and the surface pressure is decreased. The battery control device performs control to limit an output opening rate of the battery pack in a case where a temperature of the battery pack is equal to or higher than a control start temperature, and sets the control start temperature based on a usage state of the battery pack and a battery state of the battery pack.
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Patent Agency Ranking
公开(公告)号：US20240174099A1
公开(公告)日：2024-05-30
申请号：US18521438
申请日：2023-11-28
Applicant: HONDA MOTOR CO., LTD.
Inventor： Yasushi OGIHARA , Yasuo Yamada
CPC classification number: B60L53/22 , B60L58/18 , H02J7/0063 , B60L2210/10 , H02J2207/20
Abstract: A power storage system includes a first battery including two power storages, and a switch unit which switches between two voltage states in series and in parallel, a three-phase motor having a neutral point, an inverter connected on a power transmission path between the first battery and the three-phase motor, a DC power supply circuit connected to a connection portion on a power transmission path between the inverter and the first battery, a branch circuit branched from the DC power supply circuit on a positive side thereof and connected to a coil of one phase in the three-phase motor, a capacitor, a pre-charge circuit connected to a power transmission path between the inverter and the first battery, a converter connected to the pre-charge circuit, and a second battery connected to the converter and having a voltage lower than voltages of the first battery in the two voltage states.
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公开(公告)号：US11658502B2
公开(公告)日：2023-05-23
申请号：US17678017
申请日：2022-02-23
Applicant: HONDA MOTOR CO., LTD.
Inventor： Minoru Nagasawa , Hirokazu Oguma , Arata Ohishi , Yasuo Yamada , Yoshihiro Kanamaru
CPC classification number: H02J7/007182 , B60L53/20 , B60L58/18 , H02J7/0013 , H02J7/0048 , H02J7/0063 , H02J2207/20 , H02M3/158 , H02P27/08
Abstract: A power supply system includes: a first power circuit having a first battery, a second power circuit having a second battery, a voltage converter which converts voltage between the first power circuit and the second power circuit, a power converter which converts power between the first power circuit and the drive motor, a power control unit which controls charge/discharge of the first and second batteries by operating the voltage converter and the power converter, a first voltage parameter acquisition unit which calculates an effective value for the closed circuit voltage of the first battery as a first voltage parameter, a second voltage parameter acquisition unit which calculates the static voltage of the second battery as a second voltage parameter, in which the power control unit causes power to discharge from the second battery so that the second voltage parameter becomes no more than the first voltage parameter.
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公开(公告)号：US20220297571A1
公开(公告)日：2022-09-22
申请号：US17672766
申请日：2022-02-16
Applicant: HONDA MOTOR CO., LTD.
Inventor： Hirokazu Oguma , Yasuo Yamada , Arata Ohishi , Minoru Nagasawa , Yoshihiro Kanamaru
Abstract: A vehicle control device includes processor configured to execute computer-readable instructions to perform. The processor is configured to acquiring a state of a first battery and a state of a second battery, acquiring at least first actual output power of the first battery, calculating a first upper power limit value based on the state of the first battery, calculating a second upper power limit value based on the state of the second battery, and controlling a power conversion process of a power convertor based on the calculated upper power limit values, requested power from a vehicle to be output to a motor, and the first actual output power. The controlling of the power conversion process includes, when output instruction content for iteratively issuing an instruction is determined, calculating the second requested power obtained by correcting currently requested power based on a difference between previously requested power and the first actual output power.
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公开(公告)号：US12083928B2
公开(公告)日：2024-09-10
申请号：US17667591
申请日：2022-02-09
Applicant: HONDA MOTOR CO., LTD.
Inventor： Hirokazu Oguma , Yoshihiro Kanamaru , Yasuo Yamada
CPC classification number: B60L58/20 , H02J7/0013 , H02J7/0048 , H02J7/0063 , H02J7/007188 , B60K6/28 , B60L2260/20 , B60Y2200/91 , B60Y2200/92 , B60Y2300/182
Abstract: A vehicle control device includes a processor configured to execute computer-readable instructions to perform. The processor is configured to acquiring a state of a first battery and a state of a second battery having lower capacity and higher power than the first battery, calculating a first upper power limit value based on the state of the first battery, calculating a second upper power limit value based on the state of the second battery, and calculating a power output ratio between amounts of electric power to be supplied from the first battery and the second battery to a motor that outputs motive power for traveling based on the first upper power limit value and the second upper power limit value, and controlling electric power to be output to the motor based on a traveling mode of a vehicle, a maximum driving force in the motor, and the power output ratio. The controlling of the electric power includes changes the maximum amount of electric power based on whether or not the traveling mode is a first traveling mode in which traveling performance has higher priority than that in another traveling mode.
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公开(公告)号：US11831193B2
公开(公告)日：2023-11-28
申请号：US17678024
申请日：2022-02-23
Applicant: HONDA MOTOR CO., LTD.
Inventor： Arata Ohishi , Hirokazu Oguma , Yasuo Yamada , Minoru Nagasawa , Yoshihiro Kanamaru
IPC: H02J7/00 , B60L53/20 , B60L58/18 , G01R31/3835
CPC classification number: H02J7/007182 , B60L53/20 , B60L58/18 , G01R31/3835 , H02J7/0013 , H02J7/0031 , B60L2240/547 , H02J2207/20
Abstract: A power supply system includes: a first power circuit having a first battery and a first power line; a second power circuit having a second battery and a second power line; a voltage converter; a power converter; a first voltage acquisition unit which acquires a first closed circuit voltage lower limit CCVmin1 of the first battery; a second voltage acquisition unit which acquires a second closed circuit voltage lower limit CCVmin2 of the second battery; and a power control unit which operates the second power circuit based on a requested power, in which the power control unit isolates the second battery from the second power lines, in a case of a voltage difference between the first closed circuit voltage lower limit CCVmin1 and the second closed circuit voltage lower limit CCVmin2 becoming less than a first voltage threshold value A while output limitation of the second battery is being requested.
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