Hitachi, Ltd.

Renesas Electronics Corporation

Renesas Technology Corp.

Hitachi Ulsi Systems Co., Ltd.

Hitachi Automotive Systems, Ltd.

Hitachi Astemo Ltd.

Other

Osada, Kenichi

Kenichi Osada

Koichiro Ishibashi

Masanao Yamaoka

Naoki Kitai

Makoto Saen

Shigezumi Matsui

Takayuki Kawahara

Akio Nishida

Yoshikazu Saitoh

Masaru Nakamichi

Shuji Ikeda

Kazumasa Yanagisawa

Masataka Minami

Yasuhisa Shimazaki

Riichiro Takemura

Tetsuya Yamada

Hisayuki Higuchi

Kiyoo Itoh

Hiroyuki Mizuno

Yusuke Kanno

Ken Yamaguchi

Ming Liu

Shigenobu Komatsu

Futoshi Furuta

Suguru Tachibana

Kazuo Otsuga

Shuhei Kaneko

Takeshi Sakata

Kazuo Yano

Kunio Uchiyama

Nozomu Matsuzaki

Hideyuki Matsuoka

Norikatsu Takaura

Masayuki Kojima

Tatsuo Nakagawa

Yasuko Yoshida

Norio Nakagawa

Hidetoshi Teraoka

Itaru Nonomura

Yoshikazu Saito

Yoshikazu Saitou

Tetsuro Honmura

Satoshi Misaka

Tetsuya Fukuoka

Mitsuyuki Kimura

Kenji Shiozawa

Tomonori Sekiguchi

Kazuyoshi Serizawa

Kohei Sakurai

Kenichi Kurosawa

Mitsuhiro Kitani

Mikio Kataoka

Naoyuki Yamamoto

Keisuke Toyama

Minoru Motoyoshi

Hiroshi Maruyama

Masashige Harada

Takehiko Kijima

Naotoshi Nishioka

Masahiro Moniwa

Takuya Mayuzumi

Akira Kotabe

Kenzo Kurotsuchi

Mitsuhiko Watanabe

Masatada Horiuchi

Taisuke Ueta

Goichi Ono

Shigeru Oho

Shiro Kamohara

Fumiharu Nakahara

Tasuku Ishigooka

Tomohito Ebina

Chihiro Yoshimura

Kiyoto Ito

Jun Sugawa

Satoshi Tsutsumi

Takashi Uchino

Yasuhiro Fujimura

Hitoshi Kawaguchi

Yoshiaki Takemura

Masashi Mizoguchi

Masaaki Nakamura

Masood Khan

Jin-Uk Luke Shin

Koichi Soraku

Ryo Nishino

An object of the present invention is to provide a technology that enables second control software to continue processing using a peripheral circuit even in a situation where an abnormality related to first control software occurs. An electronic control device includes a memory () that stores the first control software and the second control software, a CPU () that executes the first control software and the second control software, and a peripheral circuit () used by the first control software and the second control software. The memory further includes a first buffer () and a second buffer (). The CPU interrupts at least one of the processing of storing first peripheral transmission information in the first buffer and the processing of transmitting the first peripheral transmission information to the peripheral in a specific situation in which the abnormality related to the first control software occurs.

Electronic control device

An in-vehicle network system which is mounted on a vehicle includes an electronic control unit, a plurality of gateway devices, and a plurality of sensor devices that collects ambient information which is information around the vehicle. Each of the sensor devices communicates with the electronic control unit via at least one gateway device. The electronic control unit includes a mode management unit that determines one operation mode in a plurality of operation modes associated with the sensor device to be operated, and a sleep instruction control unit that specifies a gateway device which is the gateway device, in which the connected sensor device does not operate, and does not need to relay sensor information, based on the operation mode determined by the mode management unit, and transitions the gateway device having no need to relay the sensor information to a low power state in which a processing capacity is lowered.

In-vehicle network system, electronic control unit, and gateway device

Provided is a vehicle controller that can suppress increase in startup time due to increase in the number of function portions related to communication. The invention includes a power supply unitthat is capable of supplying or shutting off operating power to a microcomputerthat communicates with other electronic control units through CAN channels (CAN, CAN), and communication controllersandthat are respectively provided in the multiple CAN channels (CAN, CAN) used for communication of the microcomputer. When the communication controllerreceives a control start instruction signal instructing activation of the microcomputerthrough the CAN channel (CAN) related to the communication controller, the communication controllerswitches the state of the communication controllerfrom a standby state with a limited function to an operating state, transmits a power source activation instruction signal instructing switching of the supply state of operating power to the microcomputerfrom supply to shut-off to the power supply unit, and outputs a communication start instruction signal instructing switching from the standby state to the operating state to the communication controller

Vehicle controller

A software update device is connected to a control device and includes an update control unit executing an update process of causing software for the control device to transit from a non-updated state to a completely updated state, a recovery control information managing unit acquiring recovery control information, and a recovery control unit executing a recovery process of causing the software to transit to the completely updated state on a basis of the recovery control information in a case where an abnormality in the update process has prevented the software from transiting to the completely updated state.

Software update device, software update method, and software update system

The autonomous driving ECU includes a first communication unit that transmits and receives autonomous driving data to and from the plurality of data ECUs, and a vehicle control unit that controls a vehicle on the basis of the autonomous driving data transmitted from the plurality of data ECUs. Each data ECU includes a data construction unit that performs a construction of the autonomous driving data transmitted to the autonomous driving ECU, and a second communication unit that transmits and receives the autonomous driving data to and from the autonomous driving ECU. If a predetermined event occurs, among the data ECUs, the data construction unit of the data ECU in which the predetermined event occurs constructs the autonomous driving data so that a total amount of the autonomous driving data transmitted from the data ECU in which the predetermined event occurs is not greater than a predetermined amount of data.

Autonomous driving system, autonomous driving control method, data ECU, and autonomous driving ECU

It is possible to perform transfer with low latency. The control apparatus includes a routing control unit, transmission queues, and a plurality of controllers. The routing control unit includes a buffer, a normal transmission unit configured to output, among inputted frames, a frame other than a frame to be retransmitted to the transmission queue of the controller corresponding to a network serving as a transfer destination, and, when the controller corresponding to the network serving as the transfer destination is in a full state in which no more frames cannot be stored in the transmission queue, specify the inputted frame as the frame to be retransmitted and store the inputted frame in the buffer, and a signal handling unit configured to, when a cancellation signal indicating that the full state has been canceled is received from any of the plurality of controllers, output, to the transmission queue of the controller that has transmitted the cancellation signal, the frame to be retransmitted that is to be transferred to the network corresponding to the controller that has transmitted the cancellation signal. When the full state is canceled, the controller transmits the cancellation signal to the signal handling unit.

Control apparatus

A microcomputer is connected to a logic circuit. The microcomputer includes a monitoring unit monitoring the state of the logic circuit, a storage unit storing a plurality of information processing items executed by the microcomputer, and a processing unit executing a process on the basis of the state of the logic circuit and at least one information processing item selected from the plurality of information processing items on the basis of a communication frame inputted to the microcomputer.

Microcomputer and logic circuit

A conventional power supply device has a problem in miniaturization. A power supply device generates a prediction value of an error signal from first and second error signals, and controls an output voltage so that the prediction value lies between first and second threshold values. The first error signal is obtained by converting an error voltage based on the difference between the output voltage and a reference voltage at a first timing. The second error signal is obtained by converting an error voltage based on the difference between the output voltage and the reference voltage at a second timing.

Semiconductor integrated circuit device and power supply device

A logic circuit in a system LSI (Large Scale Integrated Circuit) is provided with a power switch so as to cut off the switch at the time of standby, reducing leakage current. At the same time, an SRAM (Static Random Access Memory) circuit of the system LSI controls a substrate bias to reduce leakage current.

Lower-power semiconductor memory device

Provided are a relay device and the like with which it is possible to suppress bus signal reflections and suppress signal delays. A relay deviceA includes a signal processing and forwarding pathway Pand a bypass connection pathway P. The signal processing and forwarding pathway Pprocesses a signal received from one bus CANof a plurality of buses, and forwards the processed signal to another bus CAN. The bypass connection pathway Pconnects the one bus CANto the other bus CAN, bypassing the signal processing and forwarding pathway P

Relay device, electronic control device, and vehicle-mounted network system

The present invention provides an in-vehicle processing device and an in-vehicle system capable of reducing power consumption while suppressing quality degradation of data to be transmitted and received. An ECU includes a data transmission and reception device for transmitting and receiving data and an MPU for controlling the data transmission and reception device. The data transmission and reception device includes a filter device and a steady current suppression circuit. The filter device attenuates noise that is superimposed on data by reflection of the data. The steady current suppression circuit suppresses a steady current flowing through the filter device and facilitates a transient current flowing through the filter device.

In-vehicle processing device and in-vehicle system

When threshold voltages of constituent transistors are reduced in order to operate an SRAM circuit at a low voltage, there is a problem in that a leakage current of the transistors is increased and, as a result, electric power consumption when the SRAM circuit is not operated while storing data is increased. Therefore, there is provided a technique for reducing the leakage current of MOS transistors in SRAM memory cells MC by controlling a potential of a source line ssl of the driver MOS transistors in the memory cells.

Semiconductor SRAM circuit having a plurality of MOSFETS controlling ground potential

The gateway device includes a plurality of communication ports that are connected to the respective low-level networks and receive low-level data that is transmitted and received to and from the low-level networks; a storage unit that stores each of the plurality of communication ports and a source identifier in association with each other; and a control unit that generates high-level data and transmits the high-level data to the high-level network, in which the payload of the high-level data that is generated by the control unit includes at least a part of the low-level data that is received by the communication ports, and in which the header of the high-level data that is generated by the control unit includes the source identifier which is associated with the communication ports.

Gateway device and computing device

A logic circuit in a system LSI is provided with a power switch so as to cut off the switch at the time of standby, reducing leakage current. At the same time, an SRAM circuit of the system LSI controls a substrate bias to reduce leakage current.

Semiconductor device

Prior known static random access memory (SRAM) cells are required that a diffusion layer be bent into a key-like shape in order to make electrical contact with a substrate with a P-type well region formed therein, which would result in a decrease in asymmetry leading to occurrence of a problem as to the difficulty in micro-patterning. To avoid this problem, the P-type well region in which an inverter making up an SRAM cell is formed is subdivided into two portions, which are disposed on the opposite sides of an N-type well region NWand are formed so that a diffusion layer forming a transistor has no curvature while causing the layout direction to run in a direction parallel to well boundary lines and bit lines. At intermediate locations of an array, regions for use in supplying power to the substrate are formed in parallel to word lines in such a manner that one regions is provided per group of thirty two memory cell rows or sixty four cell rows.

Semiconductor integrated circuit device

Growing community of inventors

Tokyo, Japan

Kenichi Osada