公开(公告)号：US20250158936A1

公开(公告)日：2025-05-15

申请号：US18837754

申请日：2023-02-28

Applicant: Hitachi Astemo, Ltd.

Inventor： Yuji OISHI ,  Koji MAEDA

IPC: H04L47/6275 ,  H04L47/28 ,  H04L67/12

Abstract: A communication device includes a classification unit that classifies received frames into a plurality of classes, a queueing unit that buffers the frames for each of the classes, a gate unit that opens/closes the frames, a scheduling unit that determines the open/closed state and sets a guard band as a transmission inhibition period at a proximity of a gate open state end time, to ensure a transmission timing of another class, and a transmission unit that transmits the frame passed through by the gate unit. The scheduling unit sets a guard band width corresponding to a frame maximum length, and controls the open/closed state to ensure the guard band width.

公开(公告)号：US20240176404A1

公开(公告)日：2024-05-30

申请号：US18285116

申请日：2022-02-18

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenji KOGO ,  Koji MAEDA

IPC: G06F1/26 ,  B60R16/023 ,  H02J3/38

CPC classification number: G06F1/263 ,  B60R16/0231 ,  H02J3/38

Abstract: An object of the present invention is to provide an electronic control device and an electronic control system capable of achieving power supply redundancy while suppressing an increase in number of wirings. The present invention is an electronic control device 1 including a data processing circuit that performs data communication with one or more another electronic control devices, the electronic control device 1 including: a power source terminal 105 connected to a first power source 60; a first data terminal 101a to which a first external data line is connected; and a power source selection circuit that has an input side to which the power source terminal 105 and the first data terminal 101a are connected and an output side to which the data processing circuit 100 is connected, selects any one with a higher potential of power from the power source terminal 105 and the first data terminal 101a on the input side, and connects the selected one to the data processing circuit on the output side.

公开(公告)号：US20230202494A1

公开(公告)日：2023-06-29

申请号：US17928126

申请日：2021-02-05

Applicant: Hitachi Astemo, Ltd.

Inventor： Koji MAEDA ,  Kenji KOGO

IPC: B60W50/023 ,  B60W60/00

CPC classification number: B60W50/023 ,  B60W60/00186

Abstract: Cost is reduced when a duplication configuration including up to a power supply is adopted. An in-vehicle electronic control device that executes calculation processing of vehicle control using information acquired by an external sensor includes: a first calculation unit that executes the calculation processing; and a second calculation unit that is communicably connected to the first calculation unit, in which the first calculation unit and the second calculation unit are supplied with power from different power supplies, and execute calculation processing of vehicle control that is different from each other in a normal state, the first calculation unit outputs an action plan of a vehicle, the second calculation unit outputs a signal to be input to an actuator for operating a vehicle, and when the first calculation unit or the second calculation unit fails, a calculation unit in a normal state executes calculation processing of degenerated vehicle control.

公开(公告)号：US20230166678A1

公开(公告)日：2023-06-01

申请号：US17921550

申请日：2021-01-22

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenji KOGO ,  Koji MAEDA

IPC: B60R16/023 ,  H04B3/54

CPC classification number: B60R16/023 ,  H04B3/54

Abstract: As the level of autonomous driving of an automobile is improved, traveling in a system without a driver is required, and high reliability of the system is essential. One method for achieving high reliability is redundancy of a power supply. To construct a redundant power supply network, a redundant power supply network is required in addition to a main power supply network, and the number of wires of the network increases. In addition, since a cable having a thick core wire is used as a power supply wiring in order to handle a large current, the weight of the cable becomes heavy, which leads to fuel consumption degradation of the vehicle. An electronic control device 11-B receives power fed from a power storage unit 12-A via another electronic control device 11-A, as a redundant power supply redundant to a power superimposition data wiring 16. That is, the electronic control device 11-B receives power fed or transmitted from both the directly-connected power storage unit 12-B and the indirectly-connected power storage unit 12-A.

公开(公告)号：US20240199073A1

公开(公告)日：2024-06-20

申请号：US18555718

申请日：2022-02-04

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroki MAEHAMA ,  Hiroaki ITO ,  Takeshi YAMADA ,  Koji MAEDA ,  Kazuyoshi SERIZAWA

IPC: B60W60/00 ,  B60W50/04

CPC classification number: B60W60/001 ,  B60W50/04 ,  B60W2530/00 ,  B60W2554/00

Abstract: An electronic control device that executes arithmetic processing for controlling an operation of a vehicle includes: a determination unit that is connected to one or a plurality of electronic devices that recognize an external environment on the basis of information of a sensor provided in the vehicle and determines an operation of the vehicle on the basis of external recognition information transmitted from the electronic devices; and a functional boundary change determination unit that determines changes in functions of the electronic control device and the electronic devices if it is determined that a processing load of the electronic control device is high.

公开(公告)号：US20230306796A1

公开(公告)日：2023-09-28

申请号：US18041701

申请日：2021-06-14

Applicant: HITACHI ASTEMO, LTD.

Inventor： Ryo TSUCHIYA ,  Kazuyoshi SERIZAWA ,  Koji MAEDA

IPC: G07C5/00

CPC classification number: G07C5/008

Abstract: The present invention addresses the problem of reducing the processor load of an integrated circuit that processes information aggregated in a zone architecture. A network engine (210) of this vehicle control device receives data containing a plurality of pairs of the information and a source address of the information according to a first communication protocol (Protocol A). The network engine (210) identifies a communication protocol (Protocol B, C) of a communication interface of a destination integrated circuit (SoC 220) corresponding to the source address of each item of the information. The network engine (210) sorts the information for each identified communication protocol, converts the sorted information into data of the identified communication protocol, and transmits each converted data item to the destination integrated circuit via the communication interface of the destination integrated circuit.

公开(公告)号：US20230012843A1

公开(公告)日：2023-01-19

申请号：US17786680

申请日：2020-12-15

Applicant: HITACHI ASTEMO, LTD.

Inventor： Sakie KOMATSU ,  Hiroaki ITO ,  Koji MAEDA

IPC: G06V10/82 ,  G06N3/04 ,  G06N5/04 ,  G06V10/75

Abstract: An autonomous driving system for a vehicle reduces the amount of computations for object extraction carried out by a DNN, using information a traveling environment or the like. An information processing apparatus including a processor, a memory, and an arithmetic unit that executes a computation using an inference model is provided. The information processing apparatus includes a DNN processing unit that receives external information, the DNN processing unit extracting an external object from the external information, using the inference model, and a processing content control unit that controls processing content of the DNN processing unit. The DNN processing unit includes an object extracting unit that executes the inference model in a deep neural network having a plurality of layers of neurons, and the processing content control unit includes an execution layer determining unit that determines the layers used by the object extracting unit.