Yazaki Corporation

Takashi Gohara

Yasuhiro Tamai

Yoshinori Ikuta

Mitsuaki Morimoto

Tetsuya Hasegawa

Akiyoshi Kanazawa

Noboru Yamaguchi

Kazuyoshi Ogasawara

Ken Ito

Akira Mita

Hideo Takahashi

Takuo Matsumoto

Masaaki Okada

A waveguide includes a waveguide body which is hollow inside and made from a shape-retentive material, and a conductive inner coating layer which is electrically conductive and provided on an inner surface of the waveguide body. The waveguide uses an inner space of the conductive inner coating layer as a transmission path to transmit electromagnetic waves as signals. Two electric wires provided along the outer surface of the waveguide body serve respectively as a power line and a ground line to transmit electric power.

Waveguide for in-vehicle communication system

A relay connector unit for communicating an electronic control unit with a plurality of electronic devices includes: a first connecting unit connected to the electronic control unit; a second connecting unit having a plurality of circuits connected to the electronic devices respectively; and a transferring unit connected to the first connecting unit and the second connecting unit. The transferring unit transmits first information received by the first connecting unit from the electronic control unit to at least one of the electronic devices through a corresponding circuit, on the basis of circuit identifying data included in first information, the circuit identifying data indicating the corresponding circuit to be transferred to or from. The transferring unit appends the circuit identifying data to second information received from one of the electronic devices through the corresponding circuit to transmit the second information to the electronic control unit through the first connecting unit.

Relay connector unit and electronic device control system

A communication relay apparatus includes a first connecting section for connecting to a first wire harness connected to an electronic control device, a second connecting section for connecting to a second wire harness connected to a plurality of electronic equipments, a communication address setting section which has a plurality of connection portions and sets a communication address for the electronic control device with a conducting pattern based on presence or absence of conduction at the connection portions, and a communication relay section which is electrically connected to the first connecting section and the second connecting section, and relays communication between the electronic control device and the electronic equipments on the basis of the communication address.

Communication relay apparatus and relay connector unit

An arc discharge preventing device is electrically connected to at least two electronic devices, the arc discharge preventing device. The arc discharge preventing device includes an insulating main body, a first terminal, a second terminal, a low conductive member, and a conductive member. The first terminal is provided on the insulating main body, and electrically connected to a first electronic device. The second terminal is provided on the insulating main body, and electrically connected to a second electronic device. The low conductive member is provided on the insulating main body, and having a first resistance value. The low conductive member is electrically connected to the first and second terminals. The conductive member is detachably mounted on the insulating main body, and having a second resistance value lower than the first resistance value. The conductive member is electrically connected to the first and second terminals when the conductive member is attached to the insulating main body.

Arc discharge preventing device

A current detection device, a power supply system and a method for detecting electric current is disclosed as including an electric conductor which has first, second and third conductor components extending from a diverging point O in three orientations with a given angle with respect to one another, first and second magnet-electric transducer elements located at both sides of the first conductor component in positions equally spaced from the first conductor component and in the vicinity of the diverging point, and a calculation processor circuit responsive to a differential value between first and second electric signals produced by the first and second transducer elements for thereby detecting electric current flowing through the first conductor component.

Current detection device, method of detecting electric current and power supply system using the same

A load driving apparatus is provided with a power source ( ) applying a power supply voltage, a load circuit ( ), a relay circuit ( ) electrically connecting the power source ( ) to the load circuit ( ), a first switching device ( ) driving the relay circuit ( ), a second switching device ( ) having one end connected to the power source ( ) and another end connected to the load circuit ( ), and supplying the power supply voltage to the load circuit ( ), and a control unit ( ) outputting a control signal to the second switching device ( ) so as to supply the power supply voltage to the load circuit ( ) and thereafter outputting a control signal to the first switching device ( ) so as to electrically connect the relay circuit ( ) to the power source ( ), thereby starting driving the load circuit ( ).

Load driving apparatus and driving method of load circuit

This invention provides a current detecting apparatus including three conductors disposed radially from a branch point such that they are branched, three hall devices disposed between conductors adjacent of the three conductors, and an operation processing circuit for detecting a current flowing through each of the three conductors based on an operation output obtained by a predetermined operation based on electric signals from the respective hall devices.

Current detecting apparatus and current detecting method

A first battery is for supply of power at a first voltage. A second battery is for supply of power at a second voltage to a load A converter is between the first battery and the second battery The converter is for conversion of power between the first voltage and the second voltage in magnitude. A controller is for operation of the converter in dependent on a first current in magnitude through the load and a second current in magnitude at an output terminal of the second battery

Power supply apparatus for vehicle

A vehicle slide door power supply apparatus includes a vehicle body-side primary coil ( ) and a slide door-side secondary coil ( ), which are brought into proximity to each other upon closing of a slide door to effect a mutual induction operation, thereby supplying electric power from a vehicle body to the slide door, a temperature sensor ( ), provided in the vicinity of a proximity fitting surface of the primary coil ( ) for the secondary coil ( ), and a primary coil control device ( ) which is connected to the temperature sensor ( ), and can stop the excitation of the primary coil ( ) in accordance with the temperature of the proximity fitting surface or the temperature of its vicinity, detected by the temperature sensor ( ), so as to interrupt the supply of the electric power to the slide door.

Vehicle slide door power supply apparatus and method of supplying power to vehicle slide door

A current detection switch comprising a measured conductor into which a measured current flows, a plurality of magnetoelectric devices placed sandwiching the measured conductor so as to have magneto-sensitive faces on sides to which a magnetic flux generated by the measured current is input, each of the magnetoelectric devices for outputting a magnetoelectric signal when the magnetic flux exceeds a predetermined value, and a computation section for outputting a logical multiplication of the magnetoelectric signals from the plurality of magnetoelectric devices as a detection signal.

Current detection switch and apparatus therewith

A current sensor including a cabinet , a sensor conductor partially accommodated in the cabinet and secured to the cabinet and having opposite ends pulled out from the cabinet , and a Hall element accommodated in the cabinet and secured to the cabinet , and disposed in the vicinity of the sensor conductor . An electric circuit including the current sensor, and a wire conductor used for wiring of the electric circuit and having fitting portions to be fitted to terminals and of the sensor conductor of the current sensor.

Current sensor and electric circuit using the same

A current detector includes; a conductor to be measured in which a through hole is formed, the conductor to be measured having a first branch path and a second branch path for dividing a current flowing into two portions; a first magnetic-electric conversion element being arranged in the through hole of the conductor to be measured, the first magnetic-electric conversion element being provided for detecting a disturbance; and a second magnetic-electric conversion element being arranged outside of the first branch path and the second branch path formed in the conductor to be measured.

Current detector using magnetic-electric conversion element and electric connection box using the same

A current detector having a linear conductor , 11 , a linear to-be measured conductor disposed substantially in parallel to the conductor and through which a to-be measured current flows. A Hall element disposed in the vicinity of the to-be measured conductor such that a magnetic flux generated by the to-be measured current flowing through the to-be measured conductor enter into a magnetic-force sensing face substantially perpendicularly. A substrate for supporting the conductor and the to-be measured conductor such that the magnetic flux generated by a current flowing through the conductor becomes substantially parallel to the magnetic-force sensing face &plus; in the magnetic-force sensing face of the Hall element

Current detector

A CPU ( ) captures an on control signal for low-voltage loads ( to ) in LAN multiplex transmission, controls low-voltage switching devices ( to ) to be turned on in order to supply a power to the low-voltage loads ( to ), and performs a DC supply from a low-voltage battery ( ) to the low-voltage loads ( to ). In this case, immediately after the on control signal for the low-voltage loads ( to ) is captured, the CPU ( ) controls a voltage converter ( ) which is not operating, so as to be activated, thereby performing a DC supply to the low-voltage battery ( ) and the low-voltage loads ( to ).

On-board electric power supply system

Loads ( ) in a slide door are in a stopped condition, and the charging rate of a slide door-contained battery ( ) is below a predetermined value, the slide door-contained battery ( ) is charged. When the charging rate of the slide door-contained battery ( ) is above the predetermined value, the trickle charging is effected.

Growing community of inventors

Shizuoka-ken, Japan

Takashi Gohara