Kabushiki Kaisha Tokai Rika Denki Seisakusho

Tokai Rika Co., Ltd.

K.k. Tokai Rika Denki Seisakusho

Hitoshi Muraki

Kouichi Itoigawa

Kenji Tanaka

Hiroshi Ueno

Teruhiko Koide

Masanori Kosugi

Tetsuya Egawa

Seiji Ishigaki

Takashi Nagao

Tetsushi Muromachi

Kenji Iwasaki

Masakata Kanbe

Masaki Yoshino

Yoshihisa Hirano

Makoto Murate

Naofumi Kato

Masaya Tajima

Takayuki Hara

Kunihiko Ikekame

A vehicle control system includes a terminal including a storage unit to store additional function information generated by software configured to add a new function to functionality of at least one electronic device mounted on a vehicle and a first communication unit to output the additional function information, and a vehicle control device including a second communication unit to communicate with the terminal through the first communication unit and configured to add a new function to the at least one electronic device based on the additional function information obtained from the terminal through the second communication unit.

Vehicle control system and vehicle control method

A vehicle wiper controller includes a wiper drive circuit which drives a wiper. An operation switch is manipulated in a plurality of manipulation directions or to a plurality of operation mode positions when a manipulation force is applied thereto. A wiper operation control unit electronically controls the operation of the wiper and sets the wiper to an operation mode corresponding to the manipulation of the operation switch. A control signal hold circuit, discrete from the wiper operation control unit, transmits a control signal to the wiper drive circuit when the operation switch is manipulated in a predetermined first manipulation direction or when the operation switch is manipulated to a predetermined first operation mode position. The control signal hold circuit sets a hold state for holding the transmission state of the control signal.

Wiper controller

An electric current detector has a bus bar with a current direction changing section for changing a direction of electric current through the bus bar, and a magnetic detector disposed in the current direction changing section of the bus bar. The current direction changing section of the bus bar has a pair of parallel portions at which the bus bar is orthogonally deformed, and a connection portion at which the pair of parallel portions are connected, and the magnetic detector is disposed between the pair of parallel portions. The magnetic detector has a magnetic detection element disposed on a substrate, and a yoke surrounding the substrate and allowing the magnetic detection element to be placed between both ends thereof.

Electric current detector having magnetic detector

A current sensor for detecting current flowing through a conductive bus bar. A fitting groove is formed in the bus bar. A package is fitted into the fitting groove including a magnetic detection element that detects current flowing through the bus bar. A lead frame is connected to the magnetic detection element and extends out of the package. The bus bar includes a first conductor and a second conductor facing toward the first conductor, with the first and second conductors defining the fitting groove. The magnetic detection element is arranged between the first conductor and the second conductor in a state in which the package is fitted into the fitting groove.

Current sensor for measuring current flowing through bus bar

A buckle apparatus in which a permanent magnet and GMR element are provided. The polar axis of the permanent magnet is transverse to the direction a tongue plate is inserted. A shielding member is provided to an ejector of the buckle apparatus via a lever. When an inserted tongue plate of a vehicle seat belt pushes and moves the ejector as far as a position at which an engaging piece can engage with a through-hole, the shielding member is interposed between the permanent magnet and the GMR element, and the shielding member shields lines of magnetic force from the permanent magnet toward the GMR element. As a result, magnetic forces lines penetrating the GMR element are greatly reduced, and an electrical resistance value of the GMR element is suddenly and greatly changed. Thus, a buckle apparatus is provided which includes a detection mechanism that can reliably detect when the tongue plate has been inserted into the apparatus main body.

Buckle apparatus

An acceleration switch that operates even when acceleration is applied to the acceleration switch from a direction other than a predetermined detection direction. The acceleration switch includes a movable portion, which has a movable electrode, and a fixed electrode. The movable portion includes an inertial weight moved in accordance with the application of acceleration, a beam portion for pivotably supporting the inertial weight, and a plurality of flexible plates that are arranged in the inertial weight and each have a distal end in which the movable electrode is located and are flexed separately from one another. The flexible plates separately move to contact the fixed portion when acceleration is applied from a direction other than a predetermined direction.

Acceleration switch

A plate spring urges a base of a buckle device toward an anchor insertion opening side with respect to an anchor plate. Provided that urging force of the plate spring exceeds urging force of a spiral spring, the base is held, by the urging force of the plate spring, at a position at which a rivet contacts an insertion direction side end portion of a long hole. However, when the urging force of the spiral spring exceeds the urging force of the plate spring due to, in order to attach a child seat, pulling out of a webbing belt more than at a time when a body is to be restrained, the base moves against the urging force of the plate spring, and the plate spring pushes a transfer rod. Due to this pushing force being detected by a semiconductor diffusion strain gauge, it can be detected that the child seat is attached on a seat.

Buckle apparatus for seat belt system

An acceleration switch that improves detection sensitivity without being enlarged. The acceleration switch includes a switch body, a fixed electrode arranged in the switch body, and a movable weight arranged in the switch body. The movable weight is displaced when subjected to acceleration. The movable weight includes a movable electrode that contacts the fixed electrode when the movable weight is displaced, and a pair of beams connecting the movable weight and the switch body. The beams pivotally support the movable weight and extend into recesses formed in the movable weight.

Growing community of inventors

Aichi, Japan

Hitoshi Muraki