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公开(公告)号：US10744897B2
公开(公告)日：2020-08-18
申请号：US16106511
申请日：2018-08-21
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Naoyoshi Takamatsu , Yoshihiko Hiroe , Yoshitaka Niimi , Masaki Okamura
Abstract: A power-supply apparatus includes: an energy storage unit including energy storage modules; switches conducting or shutting off a current and switching a connection state of the storage modules; a voltage control unit switching a voltage of the energy storage unit; drive units, connected to the energy storage unit in series, driving respective external rotating electrical machines; and a capacitor connected to the drive units. Further, the power-supply apparatus includes a control unit that, when the voltage control unit switches the voltages of the energy storage unit, supplies electric power regenerated in the drive units to the capacitor and discharges the capacitor, and after an absolute value of a voltage difference between a post-switching voltage of the energy storage unit and a voltage of the capacitor is less than a predetermined value, controls so that the post-switching voltage of the energy storage unit is applied to the capacitor.
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公开(公告)号：US20190225096A1
公开(公告)日：2019-07-25
申请号：US16231680
申请日：2018-12-24
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yoshihiko Hiroe
Abstract: A vehicle includes a battery pack including battery stacks and switching relays, and charging ports that are respectively connected to the battery stacks. The switching relays are configured to switch between a first state where the battery stack and the battery stack are electrically connected to each other, and a second state where the battery stack and the battery stack are electrically disconnected from each other.
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公开(公告)号：US20190199108A1
公开(公告)日：2019-06-27
申请号：US16219115
申请日：2018-12-13
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yoshihiko Hiroe , Tomoya Ono , Hidetoshi Kusumi
CPC classification number: H02J7/0021 , B60L53/11 , B60L53/14 , B60L58/12 , B60L58/19 , B60L58/21 , H01M10/441 , H02J7/0024
Abstract: A charging apparatus includes a plurality of batteries, a changeover relay that can be changed over between a first state where the plurality of the batteries are connected in series to one another and a second state where the plurality of the batteries are connected in parallel to one another, an electric storage device, a main relay that is provided between the electric storage device and an electric load of a vehicle, and a control device that controls the opening/closing of the changeover relay. The control device renders the changeover relay in the first state when the main relay is in an open state.
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公开(公告)号：US11223215B2
公开(公告)日：2022-01-11
申请号：US16219115
申请日：2018-12-13
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yoshihiko Hiroe , Tomoya Ono , Hidetoshi Kusumi
Abstract: A charging apparatus includes a plurality of batteries, a changeover relay that can be changed over between a first state where the plurality of the batteries are connected in series to one another and a second state where the plurality of the batteries are connected in parallel to one another, an electric storage device, a main relay that is provided between the electric storage device and an electric load of a vehicle, and a control device that controls the opening/closing of the changeover relay. The control device renders the changeover relay in the first state when the main relay is in an open state.
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公开(公告)号：US11021067B2
公开(公告)日：2021-06-01
申请号：US16051957
申请日：2018-08-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidetoshi Kusumi , Yoshihiko Hiroe , Tomoya Ono
Abstract: An electrically powered vehicle includes electric power lines through which electric power supplied from external charger flows, an electric power storage device electrically connected to the electric power lines, a charging circuit electrically connected to the electric power lines, and an electronic control unit. The electric power storage device is configured to be charged with the electric power from the external charger. The charging circuit is configured to charge the electric power storage device in either a first state or a second state. The electronic control unit is configured to acquire charger information indicating information related to electric power to be suppliable from the external charger, generate the command by using the acquired charger information, and output the command to the charging circuit.
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Patent Agency Ranking
公开(公告)号：US10981453B2
公开(公告)日：2021-04-20
申请号：US16597360
申请日：2019-10-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Nobuyoshi Fujiwara , Yoshihiko Hiroe
Abstract: A power circuit protection device for a vehicle including a storage device, a drive motor, and a charging terminal includes a relaying device, a fuse device and a control device. The relaying device alternatively forms a first circuit that connects the storage device and the driving motor, and a second circuit that connects the storage device and the charging terminal. The fuse device is interposed between the storage device and the relaying device. The fuse device includes a first fuse, a second fuse having a fusing characteristic that is harder to blow than that of the first fuse, and a switching mechanism. The control device controls the switching mechanism such that the second fuse is connected to the power storage device when the control device controls the relaying device so that the second circuit is connected to the control device upon receiving a predetermined charging request.
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公开(公告)号：US11230199B2
公开(公告)日：2022-01-25
申请号：US16260550
申请日：2019-01-29
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yoshihiko Hiroe
Abstract: A motor-driven vehicle includes a power storage device, a charging inlet, a voltage conversion device, a first power line connected the charging inlet and a first node, a second power line connected the charging inlet and a second node, and a switching relay configured to switch between a first state and a second state. The first state is a state in which the charging inlet is connected to the power storage device via the first power line without passing through the second power line is connected to the power storage device via the second power line without passing through the first power line.
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公开(公告)号：US11124231B2
公开(公告)日：2021-09-21
申请号：US16535308
申请日：2019-08-08
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshihiko Hiroe , Masaki Okamura , Kensuke Yoshizue
Abstract: Provided is a vehicle including a plurality of wheels, a steering device, and a direction indication system. The steering device is configured to steer the wheels at least either to such a first steering angle that the vehicle travels straight in a direction intersecting the front-rear direction or to such a second steering angle that the vehicle rotates around a vertical axis passing through a central portion of the vehicle body. The direction indication system is configured to, when the steering device steers the wheels to either the first steering angle or the second steering angle, indicate toward the outside of the vehicle body that the vehicle is going to travel straight in a direction intersecting the front-rear direction or that the vehicle is going to rotate around the vertical axis passing through the central portion of the vehicle body.
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公开(公告)号：US11081895B2
公开(公告)日：2021-08-03
申请号：US16219115
申请日：2018-12-13
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yoshihiko Hiroe , Tomoya Ono , Hidetoshi Kusumi
Abstract: A charging apparatus includes a plurality of batteries, a changeover relay that can be changed over between a first state where the plurality of the batteries are connected in series to one another and a second state where the plurality of the batteries are connected in parallel to one another, an electric storage device, a main relay that is provided between the electric storage device and an electric load of a vehicle, and a control device that controls the opening/closing of the changeover relay. The control device renders the changeover relay in the first state when the main relay is in an open state.
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公开(公告)号：US20190275900A1
公开(公告)日：2019-09-12
申请号：US16281395
申请日：2019-02-21
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Yoshitaka Niimi , Yoshihiko Hiroe , Keiji Kaita
Abstract: An electrically driven vehicle includes an electrical storage device that includes a plurality of electrical storage bodies and that charges by a direct current electric power supply, and an electronic control unit that limits charge electric power supplied by the direct current electric power supply as an electrical storage amount of the electrical storage device increases. The plurality of the electrical storage bodies includes a first electrical storage body and a second electrical storage body. The electronic control unit performs adjustment control when charge by the direct current electric power supply is not carried out. The electronic control unit charges the first electrical storage body in priority to the second electrical storage body when charge by the direct current electric power supply is carried out.
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