Denso Corporation

Nippondenso Co., Ltd.

Hajime Nomura

Yusuke Tanaka

Yoshitaka Uematsu

Makiko Hanzaki

Daishi Miyata

Yuka Ito

Noboru Takagi

Akihito Iwai

Minoru Hozuka

Tadashi Shibata

Yuusuke Tanaka

Tsutomu Hayashi

Masakatsu Shigyo

Kensuke Mizui

Kenji Murakami

Kei Okada

Yoshinori Gotoh

Shunji Kamei

Yuka Itou

Takanari Makita

Toshiaki Iwashita

Koji Hazama

By a platooning formation pattern proposal method, a platooning formation pattern proposal device, or a platooning formation pattern proposal system, a formation pattern of platooning is proposed when vehicles perform the platooning, information related to the formation pattern is collected, information in a predetermined index is extracted from the collected information, a score of the index is calculated, a recommendation formation pattern is proposed, a person having provided a predetermined value is granted a predetermined right.

Platooning formation pattern proposal method, platooning formation pattern proposal device, and platooning formation pattern proposal system

A vehicular apparatus is configured to authenticate a user of a vehicle. In response to authenticating the user, a user management table, which manages an association between the user and a permitted or prohibited operation of the user for each vehicle scene, is referred to, and the permitted or prohibited operation of the user authenticated is specified to provide a specified result. An application corresponding to the permitted or prohibited operation of the user is notified of the specified result to manage the operation of the user.

Vehicular apparatus, vehicular system, and user authentication management program product

A common storage management device for a system including a common storage and at least one computer includes at least one processor, the at least one computer storing a plurality of applications configured to write and read data in the common storage. The at least one processor is configured to manage a reservation of a storage space of the common storage in response to a request from the plurality of applications to reserve the storage space for storing the data. The at least one processor is configured to notify one application of the plurality of applications of a request to reduce data size of the data for which the storage space is required to be reserved per one request, when the one application requests to reserve the storage space for the data and free storage space is insufficient for reserving the storage space for the data.

Common storage management device and common storage management method

A common storage management device for a system including a common storage and at least one computer includes at least one processor, the at least one computer storing a plurality of applications configured to write and read data in the common storage. The at least one processor is configured to manage a reservation and a release of a storage space of the common storage in response to a request from the plurality of applications. The at least one processor is configured to assign a releasing priority to each storage space of the common storage that is reserved. The at least one processor is configured to instruct to release the storage space with highest releasing priority when the plurality of applications request to reserve the storage space for the data and free storage space is insufficient for reserving the storage space for the data.

An element crack detecting apparatus for an oxygen sensor detects a sensor output voltage for an abnormality detection period after a fuel cut-off is started during operation of an engine. When the output voltage becomes negative, an abnormality counter is counted up. When the abnormality counter value reaches a determination value, it is determined that the element crack is present. The abnormality detection period is variably set in response to an engine rotational speed, an intake air quantity and the mixture state immediately before the fuel cut-off is effected. The determination value is variably set in response to the oxygen sensor temperature and the mixture state immediately before the fuel cut-off is effected. Further, the determination value is variably set in response to a magnitude of the negative voltage of the oxygen sensor.

Element crack detecting apparatus and method for oxygen sensor

In an engine control apparatus, a control program is stored in a non-volatile rewritable memory such as EEPROM. The control program is rewritten by a rewriting tool. Specifically, a key identification code is retrieved from a vehicle key, and compared with a key reference code stored in the memory. If the compared codes are the same, a program identification code is retrieved from the rewriting tool, and compared with a program reference code stored in the memory. If the compared codes are the same, a new control program is transmitted from the rewriting tool to the memory to rewrite the control program with the new control program.

Control apparatus and method having program rewriting function

In a control apparatus and method for vehicles, control data such as engine air-fuel ratio correction values are learned and stored in a backup RAM to be used in engine control. Before the data are actually used in the engine control, not all the stored data are checked but only the data read out from the backup RAM to be used for control calculation are checked. Thus, all the memory data necessary are ensured to be checked in a short period of time, and improper control operation resulting from erroneous data can be obviated. Further, abnormality checking of all the stored data is executed at a specified timing separately. When the abnormality is found in any of the data, all the data in the backup RAM are initialized.

Memory check apparatus and method for checking data upon retrieval from memory

A plurality of electronic control units such as engine ECU, navigation ECU and meter ECU as well as a transponder unit is provided in a vehicle so that those control units communicate with each other through a communication line. Each unit stores therein a vehicle identification code which varies from vehicle to vehicle. Each unit checks whether the vehicle identification code is stored in response to a turn-on of power supply. One control unit which does not store the vehicle identification code, it requests a transmission of the vehicle identification code stored in other control units of the vehicle. The other control units responsively transmit the respective stored vehicle identification code to the one control unit. The one control unit, receiving the vehicle identification code writes the transmitted vehicle identification code into its non-volatile memory. Each unit not only controls a vehicle-mounted device, but also diagnoses the vehicle-mounted device. The diagnosis result is transmitted from the transponder unit to an external management station through a radio communication together with the stored vehicle identification code, so that the management station may determine to which a repair instruction should be issued.

Vehicle communication system and method for vehicles capable of automatic storing of vehicle identification code

A compact input/output processing IC, which reduces the CPU load, to which microcomputer 100, input/output processing IC 200, and various inputs and outputs are connected. Parallel signals are connected to a high-speed input/output buffer and serial signals are connected from communications control circuit 207 via serial communications circuit 206 to SIO 104. To achieve the proper control, data requiring high speed is handled by parallel communications. Serial communications is handled by shift registers, first bit of each being connected to the last bit of the other, to form a loop, with instruction and input/output data from the CPU exchanged simultaneously, thereby achieving efficient processing. This achieves better organization of the communications for input/output processing, enabling both better control and a compact hardware design.

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Okazaki, Japan

Hajime Nomura