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

IPC: G06F1/28 ,  G06F11/32

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.

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.

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

IPC: G01R31/74 ,  G01R31/52

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.

公开(公告)号：US20150112510A1

公开(公告)日：2015-04-23

申请号：US14521553

申请日：2014-10-23

Applicant: DENSO CORPORATION

Inventor： Tomoya TOKUNAGA ,  Hidetoshi MORITA

IPC: B60R16/03

CPC classification number: B60R16/03 ,  H04L12/12 ,  H04L12/40045 ,  Y02T10/92

Abstract: A vehicle-mounted network system includes a plurality of electronic control units (ECUs) communicatively connected to a communication path of a vehicle-mounted network, each of which is configured to selectively perform a normal mode of operation and a sleep mode, and a management apparatus. The plurality of ECUs are configured to be individually powered on and off by a power supply relay of the management apparatus. The management apparatus is configured to acquire information indicative of a vehicle situation and determine a scene from the acquired information, determine control contents for powering on or off at least one specific ECU, of the plurality of ECUs, corresponding to the determined scene, if any, and power on or off the at least one specific ECU based on the determined control contents.

Abstract translation: 车载网络系统包括通信地连接到车载网络的通信路径的多个电子控制单元（ECU），每个电子控制单元被配置为选择性地执行正常操作模式和睡眠模式，以及管理 仪器。 多个ECU被配置为由管理装置的电源继电器单独加电和断电。 管理装置被配置为从所获取的信息中获取指示车辆状况的信息并确定场景，确定与所确定的场景对应的多个ECU中的至少一个特定ECU的上电或断开的控制内容，如果有的话 并且基于所确定的控制内容来打开或关闭所述至少一个特定ECU。