Mazda Motor Corporation

The Furukawa Electric Co., Ltd.

Yazaki Corporation

Naldec Corporation

U-shin Ltd.

Furukawa Electric., Ltd.

Mazda Corp.

Osamu Michihira

Seiji Hirano

Masaaki Shimizu

Yutaka Matsuda

Yoshikazu Nobutoki

Yusaku Himono

Kiyoshi Inoue

Akira Sone

Kyosuke Hashimoto

Toshimichi Tokunaga

Hiroo Moriue

Masao Hideshima

Yuichi Ito

Teruhisa Inoue

Sadahisa Yamada

Hiroaki Sakamoto

Atsuhiko Suzuki

Yasuhiko Kurata

Taro Tamagawa

Mitsuru Anma

Shoji Hara

Hiroshi Suzuki

Tomoji Izumi

Shigefumi Hirabayashi

Nagahisa Fujita

Shinshi Kajimoto

Hideaki Masui

Kiyoshi Sakamoto

Takashi Nakashima

Kunio Odaka

Koji Terayama

Yasushi Kameyama

Shinji Kato

Hisaaki Katsuki

Yukiharu Sano

Nozomi Kawasaki

Futoshi Shoji

Takuji Oka

Ushio Sakurai

Kouki Makino

Takashi Tsuchida

Makoto Tanaka

Hidemi Aoki

Yuichi Itoh

Hiromasa Nakamoto

Mitsutoshi Kuroiwa

Hiroshi Kajiyama

Izumi Dohi

Tsuneo Kudou

Hideki Nakazono

Yuichi Akiyama

Yasuhiro Takabe

Kenji Okada

Tooru Niitani

Kunihiko Matumura

Chikashi Tagawa

Katsumi Shiraishi

Nobuyoshi Sugimoto

Yuichiro Tokumaru

Takashi Fujita

Yukinobu Natsuaki

Yukio Nanpo

Koki Makino

Makoto Mutoh

Mitsuru Akimoto

Kyosuke Hasimoto

Koji Umegaki

Makoto Muto

Kouji Umegaki

The present invention relates to a wire harness arrangement structure of a vehicle, comprising plural component control parts to control plural electric components for governing a drive of the vehicle, a main control part to generate a command signal for providing a command to the plural component control parts, and plural main wire harnesses to transmit the command signal to the plural component control parts. The plural electric components include at least a brake, an engine, a transmission, and a steering, the plural main wire harnesses comprise first signal transmission routes which extend from the main control part to the plural component control parts, respectively, and second signal transmission routes which extend from the main control part to the plural component control parts, respectively, and the command signal is transmitted to the main control part to the plural component control parts through the first and second signal transmission routes.

Wire harness arrangement structure of vehicle

The present invention relates to a wire harness arrangement structure of a vehicle, comprising plural component control parts to control plural electric components for governing a drive of the vehicle, a main control part to generate a command signal for providing a command to the plural component control parts, and plural main wire harnesses to transmit the command signal. The plural electric components include at least a brake, an engine, a transmission, and a steering, and the plural main wire harnesses constitute a signal transmission loop which extends from the main control part and returns to the main control part by way of the plural component control parts.

A power supply system comprises an electricity storage device provided at a vehicle's front portion, a front relay device provided at the vehicle's front portion and distributing power to a first electric load including electric loads arranged at the vehicle's front portion, a central relay device provided in a vehicle compartment and distributing power to a second electric load including electric loads arranged in the vehicle compartment, a rear relay device provided at a rear portion of the vehicle and distributing power to a third electric load including electric loads arranged at the vehicle's rear portion, a first power line connecting the electricity storage device and the front relay device, a second power line connecting the front relay device and the central relay device, and a third power line connecting the front relay device and the rear relay device.

Power supply system of vehicle

A power steering lock apparatus provides high reliability and can be actuated using minimal control parts. In a power steering lock apparatus including a lock bolt, an actuator, an actuator driving part, position detecting part, and a slave control part, and being structured such that the slave control part executes a control in accordance with a control signal output by a host control part, the host control part outputs an integrity confirmation code signal to the slave control part, the slave control part executes a computing process by using the input integrity confirmation code signal as a parameter, and outputs a result of computation as an integrity confirmation information to the host control part, and the host control part outputs an engine start signal when the host control part determines that the slave control part is normally activated, and the lock bolt indicates an unlock position state.

Power steering lock apparatus

A vehicle multiplex transmission apparatus which can operate all the auxiliary units of a vehicle even when a power supply line of the vehicle is locally short-circuited. This vehicle multiplex transmission apparatus includes a plurality of control nodes arranged in respective portions of a vehicle, for controlling vehicle auxiliary units, and a multiplex transmission line for connecting among the plurality of control nodes. The control nodes are connected to a power supply node arranged at a predetermined position of a vehicle body through two independent systems of first and second power supply lines. The first power supply line supplies power to vehicle travel auxiliary units. The second power supply line supplies power to general system auxiliary units, but it can supply power to the travel auxiliary units as needed.

Vehicle multiplex transmission apparatus

An electrical wiring harness structure constituting a multiplex transmission network in a vehicle, in which a vehicle body is divided into a plurality of blocks, electrical components are mounted in units of blocks to constitute modules, and thereafter, the modules are combined to complete a vehicle body. The structure includes control nodes, arranged in units of modules, for controlling communications of the electrical components mounted on the corresponding modules, wiring harnesses, arranged between the adjacent modules, for forming a transmission path for performing communications among the control nodes, and connectors for connecting the wiring harnesses and the control nodes.

Electrical wiring harness structure for vehicle

The number of control nodes, of a plurality of control nodes distributed/connected to a common multiplex transmission path, which can exchange data with each other, is counted and data communication between the plurality of control nodes is performed while each control node prolongs the data transmission period as the number of control nodes, i.e., the number of control nodes which can exchange data with each other, increases.

Multiplex transmission apparatus and method

An apparatus for diagnosing failures in a plurality of control units is provided in a control system. The apparatus has a detection device provided outside of the control units for comparing output data representing processing results of the control units to detect disparity of the output data of the control units, and a device for determining that a failure has occurred in at least one of the control units when the detection device detects the disparity of the output data.

Apparatus and method for diagnosing failures in control system

A multiplex transmission system includes a plurality of multiplex nodes interconnected by a common multiplex transmission line. Data frames are transmitted among the multiplex nodes through the multiplex transmission line. A data frame transmitted from a sending multiplex node includes a data area which is divided into subdivided areas in accordance with data transmitted therefrom and data transmitted from receiving multiplex nodes which send data in response to a send request, in accordance with the number of data pieces or the number of bits, and the receiving nodes send data to respective subdivided areas in a predetermined order, to thereby carry out a data transmission. Accordingly, the sending multiplex node can simultaneously collect data from the receiving multiplex nodes which are functionally subordinate. When any of the receiving multiplex nodes fails to return an ACK signal, the sending multiplex node retransmits the data frame.

Multiplex transmission system having plurality of nodes and common

In a multiplex transmission apparatus and a multiplex transmission method when a control unit reads reception data while a status flag is set, it determines that the reception data is obtained before data in a transmission buffer is transmitted. When the control unit reads the reception data while the status flag is reset, it determines that the read data is response data to transmission data. Thus, the control unit precisely recognizes the time series of data on communication control.

Multiplex transmission apparatus and multiplex transmission method

In a multiplex transmission apparatus, multiplex transmission paths to each of which a plurality of communication nodes are connected through a gateway node. When data transfer between the multiplex transmission paths is disabled, data are temporarily saved in a stack according to priority order of data, and when the saved data are transmitted, the data are transmitted on the basis of the priority order and the storage order of the data, thereby preventing omission of transfer data.

Apparatus having priority order storages for recovery from failure of

A multiplex transmission system of this invention includes a plurality of multiplex nodes interconnected by a common multiplex transmission line. A frame of data is transmitted among the multiplex nodes through the multiplex transmission line. When a data frame transmitted from an air conditioner switch multiplex node (subnode) is received, an air conditioner unit multiplex node (main node), which is predetermined as a destination node, detects the contents of each data from an ID-a of the received data, performs a calculation on SOM to DATA 4 received, generates collation data (CRC) in accordance with the result of the calculation and transmits same. The subnode generates collation data (CRC), which is an error check code, through a calculation on the transmitted SOM to DATA 4, and compares the thus-generated CRC with the CRC received from the main node, to determine whether or not the data transmission was properly carried out. When the data transmission was carried out properly, the subnode returns a signal ACK3, and when the data transmission failed, the data frame is retransmitted, whereby the subnode need not have an ACK management function.

Multiplex transmission system

In a multiplex transmission system wherein data is transmitted among a plurality of control units connected to a multiplex transmission line in decentralized fashion, communication is performed upon changing the period of the data transmission among the control units and the method of transmission, such as the order of priority of transmission, in dependence upon the travelling state of the vehicle equipped with the multiplex transmission system, the operating states of the control units or the control unit which is a party to the communication.

In a multiplex transmission system for vehicles, the right to access a bus is divided into a plurality of main time slots, and the individual time slots are subdivided into two subordinate time slots. In each individual main time slot, a communication node having comparatively heavy traffic is assigned to a first of the two subordinate time slots, and a communication node having comparatively light traffic is assigned to a second of the two subordinate time slots.

Multiplex transmission system for use in vehicles

An electrical harnessing structure for connecting to vehicle electrical components to an instrument panel, which is constituted by an instrument panel core to which the vehicle electrical components are mounted, and an instrument panel mount member for mounting the instrument panel core to a vehicle body component portion. The harnessing structure includes an electrical harnessing member divided at least into a first electrical harnessing member portion and a second electrical harnessing member portion, and consisting of a bundle of a plurality of electric wires, a first mounting member for mounting the first electrical harnessing member portion to the instrument panel mount member, a second mounting member for mounting the second electrical harnessing member portion to the instrument panel core, and a connect member for connecting the first and second electrical harnessing member portions to each other.

Electrical harnessing structure for vehicle

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Hiroshima, Japan

Osamu Michihira