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1.发明申请公开(公告)号：US20250087986A1
公开(公告)日：2025-03-13
申请号：US18830642
申请日：2024-09-11
Applicant: DENSO CORPORATION
Inventor： Ryota KAMEOKA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Akira TADA , Yoji HOMMA
IPC: H02H1/00 , B60R16/033 , H02H7/20 , H04L67/12
Abstract: A communication system includes: a first control device receiving electric power supply from a power source via an electronic fuse; a second control device connected to the first control device for data communication; and a management device connected to the first and second control devices for data communication and controlling the electronic fuse. The management device performs at least one of: transmitting power source pre-cutoff notification information to the second control device notifying that the electric power supply will be cut off before turning off the electronic fuse; and transmitting power source post-cutoff notification information notifying that the electric power supply has been cut off after turning off the electronic fuse.
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公开(公告)号：US20250123663A1
公开(公告)日：2025-04-17
申请号：US18910041
申请日：2024-10-09
Applicant: DENSO CORPORATION
Inventor： Akira TADA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Ryota KAMEOKA , Yukihiro YAMAKAWA
Abstract: A communication system includes interconnected multiple electronic controllers. At least one thereof is a multiple-circuits controller including a first electronic circuit device, a second electronic circuit device, a first power switch, a second power switch, a management frame exchange unit, and a power supply control unit. The first power switch switches between a first connected state and a first disconnected state. The second power switch switches between a second connected state and a second disconnected state. The management frame exchange unit exchanges a management frame including first switching information and second switching information. The power supply control unit switches the first power switch between the first connected state and the first disconnected state according to the first switching information and switches the second power switch between the second connected state and the second disconnected state according to the second switching information.
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公开(公告)号：US20250074340A1
公开(公告)日：2025-03-06
申请号：US18815915
申请日：2024-08-27
Applicant: DENSO CORPORATION
Inventor： Tomoya TOKUNAGA , Akira TADA , Ryota KAMEOKA , Tomohisa KISHIGAMI , Yuta KAWAMURA
IPC: B60R16/023 , G07C5/08
Abstract: A first device receives an electric power from a battery via an electronic fuse. A second device is connected to the first device to transmit and receive a frame. A third device controls the operation of the electronic fuse. The first and second devices store a diagnosis mask table. The diagnosis mask table defines, for each of communication groups, one or more combinations of a device whose electric power supply via the electronic fuse is cut off, a device which enters a sleep state, and a communication frame that is not received. The third device determines an activation group based on acquired activation trigger information. The third device transmits the communication frame indicating the determined activation group to the first and second devices.
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公开(公告)号：US20250125652A1
公开(公告)日：2025-04-17
申请号：US18910032
申请日：2024-10-09
Applicant: DENSO CORPORATION
Inventor： Akira TADA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Ryota KAMEOKA , Taku INAGAWA
Abstract: A communication system includes a first controller and a second controller connected to each other. The first controller receives electric power from a power source through a power switch. The second controller includes a current detection unit, the management frame obtaining unit, the disconnection determination unit, and the power supply disconnection unit. The current detection unit detects a consumed current value of the first controller. The management frame obtaining unit obtains a management frame including activation information of the first controller. The disconnection determination unit determines, based on the consumed current value and the activation information, whether a predetermined disconnection condition is met. The power supply disconnection unit switches the power switch to a disconnected state when the disconnection determination unit determines that the disconnection condition is met.
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公开(公告)号：US20250103118A1
公开(公告)日：2025-03-27
申请号：US18895451
申请日：2024-09-25
Applicant: DENSO CORPORATION
Inventor： Ryota KAMEOKA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Akira TADA
Abstract: A communication system includes a plurality of electronic control devices connected to be capable of transmitting and receiving a communication frame. The electronic control devices includes a power supply switching device configured to receive a power supply from a power source via a power supply switching section and a management device connected to the electronic control devices to be capable of transmitting and receiving a communication frame, and is configured to control an operation of one or a plurality of power supply switching sections. At least one of the electronic control devices includes a frame generation section configured to generate a management frame that is a communication frame and a frame transmission section configured to transmit the management frame.
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Patent Agency Ranking
公开(公告)号：US20250123668A1
公开(公告)日：2025-04-17
申请号：US18910026
申请日：2024-10-09
Applicant: DENSO CORPORATION
Inventor： Akira TADA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Ryota KAMEOKA , Taku INAGAWA
Abstract: A communication system includes a first controller and a second controller connected to each other. The first controller receives electric power from a power source through a switch. The second controller includes a current detection unit, a management frame obtaining unit, a state comparing unit, and a diagnostic process executing unit. The current detection unit detects a consumed current value by the first controller. The management frame obtaining unit obtains a management frame including activation information of the first controller. The state comparing unit determines whether a first state based on the consumed current value and a second state based on the activation information of the first controller are inconsistent with each other. The diagnostic process executing unit performs, when the first state and the second state are inconsistent with each other, at least one of (i) storing diagnostic information and (ii) transmitting a notification of the diagnostic information.
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公开(公告)号：US20250106065A1
公开(公告)日：2025-03-27
申请号：US18895474
申请日：2024-09-25
Applicant: DENSO CORPORATION
Inventor： Ryota KAMEOKA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Akira TADA
IPC: H04L12/40 , G06F1/3296 , G07C5/08
Abstract: A communication system includes a first control device that receives a power supply from a power source via a power supply switching section configured to switch between a conduction state and a cutoff state and a second control device that is data-communicably connected to the first control device and controls an operation of the power supply switching section. The second control device includes a state confirmation section that determines whether the first control device is in a cutoff-allowable state and a power supply control section that brings the power supply switching section into the cutoff state when the state confirmation section determines that the first control device is in the cutoff-allowable state.
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公开(公告)号：US20250085360A1
公开(公告)日：2025-03-13
申请号：US18829367
申请日：2024-09-10
Applicant: DENSO CORPORATION
Inventor： Akira TADA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Ryota KAMEOKA , Yoji HOMMA
Abstract: A communication system includes a first control device that receives a power supply from a power source via a first electronic fuse, a second control device that is data-communicably connected to the first control device and receives a power supply from the power source via a second electronic fuse, a management device that is data-communicably connected between the first control device and the second control device; a switching control section configured to execute switching control to switch the first electronic fuse and the second electronic fuse between an on state and an off state, a diagnostic information storage section configured to store diagnostic information related to communication with the first control device, and a state information storage section configured to store first fuse state information related to a state of the first electronic fuse, which is referred to for invalidating the diagnostic information.
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公开(公告)号：US20250103115A1
公开(公告)日：2025-03-27
申请号：US18895461
申请日：2024-09-25
Applicant: DENSO CORPORATION
Inventor： Ryota KAMEOKA , Tomohisa KISHIGAMI , Tomoya TOKUNAGA , Akira TADA
Abstract: A communication system includes a slave control device that receives a power supply from a power source via a first power supply switching section, a first power supply switching control section configured to receive a power supply from the power source via a second power supply switching section and control an operation of the first power supply switching section, a second power supply switching control section configured to control an operation of the second power supply switching section, a switching transmission section configured to transmit first switching instruction information indicating whether to bring the first power supply switching section into the first conduction state to the first power supply switching control section; and a power supply control section configured to bring the second power supply switching section into either the second conduction state or the second cutoff state based on the management frame.
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公开(公告)号：US20240383417A1
公开(公告)日：2024-11-21
申请号：US18666031
申请日：2024-05-16
Applicant: DENSO CORPORATION
Inventor： Ryota KAMEOKA , Takuro OMURA , Hidetoshi MORITA
IPC: B60R16/023 , B60R11/00
Abstract: An onboard design device or an onboard design method: acquires topology information indicating: a plurality of onboard candidate positions; at least one device onboard position showing a position of a peripheral device; and a wiring route; acquires a coefficient that defines an onboard function and an onboard condition; and determines an onboard position and an onboard number of an electronic control unit.
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