Mazda Motor Corporation

Nippon Chemi-con Corporation

Naldec Corporation

Akira Sone

Kazutoshi Nobumoto

Toshiaki Tsuyama

Fumio Kageyama

Masao Hideshima

Makoto Kawamura

Yoshikazu Nobutoki

Osamu Michihira

Shigeyuki Satomura

Seigo Suzuki

Masayoshi Takahashi

Haruki Okazaki

Toru Onaka

Takeshi Murai

Hiroto Kido

Masafumi Sakakida

Hiromasa Honji

Satoshi Nishikaji

Masanobu Kosaka

Shinji Kato

Hiroaki Nakao

Ikufumi Honda

Kazuhiko Yoshikawa

Manabu Hashimoto

Ippei Yamachi

Hitoshi Ohara

Chikashi Tagawa

Masanoba Fukushima

Makoto Teshima

Joji Obara

A capacitor device has an accommodating case in which a plurality of accommodating parts are formed for accommodating capacitor main bodies. The plurality of accommodating parts are oriented so that the longitudinal directions thereof all face the same direction, and the plurality of capacitor main bodies are accommodated in the accommodating parts in a manner such that the sides having terminal parts are set up in the same orientation. The sides of the capacitor main bodies having the terminal parts are provided with engaging parts that engage with engaged parts provided to a predetermined element member, and the capacitor main bodies are accommodated all together in the accommodating case in a manner such that the engaging parts are engaged with the engaged parts.

Capacitor device

A battery is arranged at a specified position which is located on an outside of a front side frame in a vehicle width direction and between a front wheel and a crush can in a vehicle longitudinal direction. Accordingly, the battery can be positioned properly at a front portion of a vehicle so that the battery may not receive any improper thermal influence from an engine or a motor and not hurt the function of impact absorption in a vehicle frontal collision.

Battery arrangement structure of vehicle

A seatbelt system for a front seat of a vehicle having such a double door that a front door () and a rear door () open outwardly forward and rearward, respectively, to form an uninterrupted doorway () to a passenger compartment (A) and the front door () overlaps the rear door from the outside so as to allow the rear door () to open and close while the front door is open comprises a retractor () installed in the rear door () and retracting a seatbelt () therein, a seatbelt lock mechanism () operative to lock the seatbelt () when the seatbelt () attains a predetermined acceleration, and a lock canceling mechanism () operative to put the seatbelt lock mechanism () inoperative when activated, The seatbelt system activates the lock canceling mechanism () to put the seatbelt lock mechanism () inoperative when the seatbelt () is unbuckled while the front door and/or the rear door is open or not properly closed and deactivates the lock canceling mechanism () to put the seatbelt lock mechanism () operative when the seatbelt () is buckled up while the front door and/or the rear door is open or not properly closed.

Front seatbelt system for vehicle

A multiplex transmission method in which time-divisional multiplex transmission operations are performed among a plurality of communication nodes, and every time a node transmits a new signal, it changes the state of a re-transmission check bit added to the signal. When a signal is re-transmitted, each node sets the re-transmission check bit to be the same as that of the new signal to be re-transmitted. Each node can properly determine whether or not a reception signal is a new or re-transmission signal for the self node.

Multiplex transmission method

A slip control system for a motor vehicle controls slippage of driving wheels and includes a sensor for detecting a slip ratio of each driving wheel, a device for decreasing slip of each driving wheel by controlling a driving force transmitted to the driving wheel so that the slip ratio of the driving wheel is at least equal to a predetermined desired slip ratio when the slip ratio of the driving wheel is equal to the desired slip ratio, a sensor for detecting a yawing rate of the vehicle, and a sensor for detecting a steering amount of the vehicle. The slip decreasing device includes a correcting device for decreasing the desired slip ratio when a steering condition is detected based on amounts detected by both the yawing rate detecting sensor and the steering amount detecting sensor.

Slip control system for motor vehicle

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

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.

Multiplex transmission system

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

In a multiplex transmission method, refresh transmission operations at a predetermined period, and event transmission operations are time-divisionally performed in a multiplex transmission mode, and a predetermined non-transmission time is set before start of each refresh transmission operation. When another transmission operation is performed within the non-transmission time, a communication is performed, while the predetermined period of the refresh transmission operations is properly permitted to be delayed to assure the non-transmission time for such a communication state.

A system for reporting the occurrence of a failure in a multiplex communication network system in which a plurality of communication nodes are connected to one another and information is exchanged by transceiving frames. In the system, if a failure takes place in any of the communication nodes, the frame which reports the failure occurrence is transmitted to the network while being given the top priority.

A method of multiplex transmission for effecting multiplex transmission among a plurality of multiplex nodes is disclosed. The multiplex nodes are connected to a transmission path in which each multiplex node has its own node connection information for controlling its signal transmission and reception, and is capable of controlling and correcting the node connection information such that when a first multiplex node finds that a second multiplex node is in a normal state according to the node connection information of the first multiplex node and the remaining multiplex nodes find that the second multiplex node is in an abnormal state according to the node connection information of the remaining multiplex nodes, and when it is recognized that there is inconsistency in the node connection information between the first multiplex node and the remaining multiplex nodes and that a state of the second multiplex node should be recognized as normal, the remaining multiplex nodes transmit a request signal, which request the second multiplex node to transmit a return-to-normal signal which represents that the second multiplex node as returned to normal. Wherein the remaining multiplex nodes transmit the request signal at a predetermined time after the recognition of the inconsistency if they have received no request signal transmitted from any other multiplex node by that time, the predetermined time differing from node to node, the remaining multiplex nodes transmit no request signal if they have received a request signal transmitted from any other multiplex node.

Method of multiplex transmission

In a multiplex transmission method of a multiplex transmission apparatus provides time-divisional multiplex transmission operations among a plurality of communication nodes. A among the plurality of communication nodes predetermined node among the plurality of communication nodes is started requests other communication nodes to transmit connection signals so as to confirm a connection state of communication nodes on the multiplex transmission bus. When the predetermined communication node receives the connection signals from the other nodes within a predetermined period of time, confirmation of the connection state is ended and a multiplex transmission of data is started.

A slip control system for a motor vehicle controls slips in driving wheels and includes a sensor for detecting a slip ratio of each driving wheel and a traction control system for decreasing a slip of each driving wheel by controlling a driving force transmitted to each driving wheel so that the slip ratio of each driving wheel is at least equal to a predetermined desired slip ratio when the slip ratio of the driving wheel becomes equal to the desired slip ratio. An automatic transmission control system controls an automatic transmission by using a first shift property for a normal operation, and a second shift property for a traction control operation which is adapted to determine a relative higher speed stage. A device is provided for switching the first shift property to the second shift property when the traction control operation is started by the traction control system.

A slip control mechanism of a motor vehicle has a brake provided for each driving wheel, a first detection device means for detecting slip of each driving wheel, a second detection device for detecting if a predetermined condition has been met during a starting period of the vehicle, and a slip control device for operating the brake for providing each driving wheel with braking force when an excessive slip is detected, based on signals from the first detection device, to thereby eliminate such excessive slip. The slip control device controls the brake for the respective driving wheels whereby substantially the same amount of braking force is applied to the driving wheels when the second detection device detects that the predetermined condition is not met. The slip control device also controls the brake for the respective driving wheels independently in accordance with signals from the first detecting device when the second detecting device detects that the predetermined condition is met.

Slip control mechanism of a motor vehicle

A torque converter with a lockup clutch is interposed between an engine and a driven wheel, and the lockup clutch is coupled or uncoupled on the basis of a predetermined lockup characteristic. When a slip value of the driven wheel against a road surface reaches a given value or higher, torque to be applied to the driven wheel is decreased to thereby perform slip control. During this slip control, the lockup clutch is forced to be uncoupled prior to the lockup characteristic. The forcibly uncoupled state of the lockup clutch is maintained for a given period of time from the time when the slip control ends.

Growing community of inventors

Hiroshima, Japan

Akira Sone