Toyota Jidosha Kabushiki Kaisha

Citizen Watch Company, Ltd.

Citizen Finedevice Co., Ltd.

Denso Corporation

Yusuke Satoh

Satoru Fukuyo

Tomoyasu Ishikawa

Hiroya Ando

Nobuyuki Nakagawa

Kazuo Takahashi

Hiroyoshi Ito

Hiroshi Nakagawa

Keisuke Sasaki

Masanori Yomoyama

Masakatsu Nagai

Takahiro Shidai

Kengo Hayashizaki

Osamu Hirashima

Tetsuya Aiba

Katsutomo Sasakura

Yuta Kanamori

Yoshihiko Katoh

Ikuo Takahashi

Norio Abe

Koji Hirabayashi

Aki Sudo

Serina Egawa

A master includes: a communication module configured to request a download of update data from a center; a first storage device configured to store the update data obtained by the download; and one or more processors configured to at a time of execution of the download, check at least one of a free space size of the first storage device or a free space size of a second storage device of each of one or more update-target in-vehicle devices among a plurality of in-vehicle devices connected through an in-vehicle network, and perform control such that, based on the update data, update software is installed, or installed and activated, in the one or more update-target in-vehicle devices, wherein the communication module is configured to request the download of the update data from the center based on the free space size.

Software update apparatus, master, OTA master, and network system

A software update apparatus includes a communication unit that sends a request for downloading update data to a center, a storage unit that stores the downloaded update data, and a control unit that executes, based on the update data, a control for installing, or installing and activating update software on one or more target electronic control units from among a plurality of electronic control units connected to each other via an in-vehicle network. The control unit acquires software versions of the electronic control units, determines whether there is a consistency in a combination of the acquired software versions, and executes, upon determining that there is an inconsistency in the combination of the acquired software versions, a process for attaining the consistency in the combination of the software versions.

Software update apparatus, software update method, non-transitory storage medium storing program, vehicle, and OTA master

A software update device is configured to be controlled in response to a request from a mobile terminal device. The software update device includes one or more processors configured to: acquire cooperation information indicating that connection of the mobile terminal device to a vehicle is made; and manage whether the mobile terminal device is permitted to execute interface processing related to software update, which is determined in accordance with at least the cooperation information.

Software update device, software update method, and center

A server configured to transmit update data used in updating software of an in-vehicle device of a vehicle to the vehicle. The server includes: a communication module configured to receive usage information representing a usage state of the vehicle, and transmit the update data to the vehicle; and one or more processors configured to control, based on the usage information, at least one of a timing or a communication speed of transmitting the update data to the vehicle by the communication module.

Server, software updating device, vehicle, software updating system, control method, and non-transitory storage medium

A software update apparatus includes a communication unit that sends a request for downloading update data to a center, a storage unit that stores the downloaded update data, a control unit that executes, based on the update data, a control for installing, or installing and activating update software on one or more target electronic control units from among a plurality of electronic control units connected to each other via an in-vehicle network, and a determination unit that determines whether the vehicle is stopped and can be maintained in a stopped state. When a determination result of the determination unit is positive, the control unit restricts operations of the target electronic control units and executes the control for installing, or installing and activating.

A software update device connected to an in-vehicle network including a plurality of in-vehicle devices includes one or a plurality of processors configured to: perform an update of software of at least one of the in-vehicle devices; and perform a control of setting a door of a vehicle in an unlocked state before performing predetermined processing included in processing for the update, when performing the update.

Software update device, software update method, non-transitory storage medium, and vehicle

An electronic control device includes: a memory that stores a plurality of divided programs obtained by dividing a program and a verification authenticator, a cryptographic operator that generates a partial authenticator for each of the plurality of divided programs in a cryptographic operation; and a verification unit that generates a operation authenticator by performing a logic operation using the plurality of partial authenticators, and verifies a falsification of the program by determining whether the verification authenticator and the operation authenticator match.

Electronic control device, program falsification detection method, and computer readable non- transitory tangible storage medium

A pressure detection device includes: a piezoelectric element that detects a pressure change via a diaphragm head or the like; a circuit board that is provided with a processing circuit that performs electrical processing with respect to a charge signal outputted from the piezoelectric element; a conductive housing member, which has conductivity and is disposed to cover (house) the circuit board, and which is connected to the ground of the circuit board; and a housing (a leading end side housing, the diaphragm head and a rear end side housing), which houses the piezoelectric element, the circuit board and the housing member, and which is electrically insulated from the piezoelectric element, the circuit board and the housing member.

Pressure detection device and pressure detection system having first and second housings electrically insulated from each other

A pressure detection device includes: a cylindrical body made of a conductor; a pressure receiver made of a conductor, the pressure receiver being mounted to one end side of the body and receiving pressure from the outside; a signal generator arranged inside the body, the signal generator being electrically connected to the pressure receiver and generating a signal corresponding to the pressure received by the pressure receiver; and a cover made of an insulator with a lower thermal conductivity than thermal conductivities of the body and the pressure receiver, the cover continuously covering an outer surface of the pressure receiver and a portion of an outer surface of the body, the portion being located at a side closer to the pressure receiver.

Pressure detection device, internal combustion engine equipped with the same, and method for manufacturing the same

An information collection method includes determining whether or not a vehicle satisfies predetermined conditions when a target device receives a test mode start request from an collection device, and when it is determined that the vehicle satisfies the predetermined conditions, starting the test mode. In the test mode, update of a predetermined counter is stopped. The collection device generates a first MAC based on the count value received from the target device and transmits an attack information acquisition request with the first MAC to the target device. If the attack information acquisition request with the first MAC is received from the collection device, the target device generates a second MAC based on the stopped count value, determines that the host device is normal in a case where the first MAC and the second MAC coincide with each other, and transmits the attack information to the collection device.

Communication system and information collection method executed in communication system

There are: a communication sheet that propagates electromagnetic wave; a wireless communication part arranged close to the communication sheet, and stores predetermined information, and wirelessly transmits the predetermined information to the communication sheet; a shield part that shields a radio signal wirelessly transmitted from the wireless communication part; an operation part that enables or disables wireless communication between the communication sheet and the wireless communication part; and a discrimination part that discriminates contents of operation by the operation part based on the predetermined information wirelessly transmitted by the wireless communication part. According to an operation by said operation part to disable the wireless communication between said communication sheet and the wireless communication part, said shield part shields the radio signal from the wireless communication part.

Switch device

A data communication network system which enables an intended unit to determine a start point for a transmission schedule in communication is provided. In a data communication network system in which a plurality of electronic control units perform network communication through a communication line based on a time triggered communication protocol, a control section for previously putting the communication line in a communication inhibited state, and canceling the communication inhibited state at a predetermined time is included, and a predetermined one unit among the plurality of electronic control units transmits a message for synchronization, in a communication time, with the other units thereamong immediately after the communication inhibited state is cancelled.

Data communication network system

To provide a data relay device which prevents a significant delay even when pieces of data are transmitted/received in protocols that are different from each other. Transmission timings at which pieces of data are transmitted/received in a network using an event trigger type communication protocol are estimated. Stay periods which occur when pieces of data are relayed and transmitted at predetermined transmission timings in a network using a time trigger type communication protocol are calculated while changing a reference time for the time trigger type communication protocol. Then, synchronization processing is performed in the network using the time trigger type communication protocol such that communication is performed using a reference time having a small stay period that has been calculated.

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Toyota, Japan

Yusuke Satoh