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Air/fuel ratio control system for automotive vehicle using feedback
An simplified structure of an air-fuel ratio control system for an internal combustion engine includes an upstream and a downstream catalytic device installed in...
Tire air pressure detection system
A tire air pressure detection system, able to prevent a strong electric field or strong radio interference from affecting transmitters and causing mistaken data...
Control apparatus having fluid passage for cooling purpose
A control apparatus includes a body, a fixation plate and a control circuit arrangement. The body includes first and second fluid passages, which conduct fluid....
In a charge amplifier, an operational amplifier is provided. The operational amplifier has an inverting input terminal, a non-inverting input terminal, and an...
Control apparatus for selectively driving plural stator windings of
A control apparatus for a synchronous motor such as a switched reluctance motor, having a plurality of respectively separate stator windings, can operate the...
Electrical motor and fluid pump using the same
An electrical motor includes a commutator attached to one side of an armature in an axial direction, and a cover structure member attached to the other side of...
Rotary electric apparatus with high cooling performance
A rotary electric apparatus, such as on-vehicle three-phase AC generator (i.e., alternator) comprises a main rotary unit, a semiconductor power converter, and an...
Automatic transmission control apparatus having diagnostic function
An automatic transmission control apparatus controls a gear position by engaging and disengaging multiple frictional elements. A hydraulic pressure detector...
Temperature sensor capable of automatic installation
The present invention provides a temperature sensor with an improved reliability of a root portion of a harness. A substantially rod-shaped guide portion 28...
Condenser for vehicles and integrated radiator-condenser body including
A condenser (14) for vehicles, comprising: a pair of mutually parallel distributors (28,30), a plurality of mutually parallel tubes (32) positioned...
Exhaust gas recirculation device
An electric motor is placed on an upstream side of an exhaust gas recirculation passage of a housing in a direction that is parallel to an intake air flow...
Pressure detecting apparatus
Pressure detecting apparatus includes: a housing; a pipe extending from one end of the housing and having an elongated shape; and a pressure sensitive element...
Physical quantity sensor having sensor chip and circuit chip
A physical quantity sensor includes: a circuit chip; and a sensor chip disposed on the circuit chip through an adhesive layer. The sensor chip includes: a...
An expansion-and-compressor device of a fluid machine has a pump mode operation in which the expansion-and-compressor device is rotated by a driving force from a...
Communications terminal operable with high security protocol
A mobile phone connected to the Internet determines whether an emergency communications request for a designated IP address is received, and terminates the...
Electronic control device
An ECU includes a microcomputer that has an integrated flash memory. An initial writing flag is set in the microcomputer before an initial writing to the flash...
Image operation system
In an image control system, with a reactive force on an input device that controls a pointer in a display, a bilateral communication of a pointing device can...
Internal combustion engine knock determination device and ignition control
system including the same
An engine ECU executes a program including the steps of: detecting a waveform of vibration of an engine at a predetermined knock detection gate; determining...
Relay device having holding current stabilizing and limiting circuit
A relay device includes plural relay units, each having a coil for opening/closing a contact point, a base plate made of resin and having wiring metal pieces,...
A comparator includes a differential amplification circuit having differential input transistors and load transistors, an output transistor for outputting an...
Concentrated winding stator coil for an electric rotary machine
A tooth coil of a concentrated winding stator includes a first layer coil arranged by successively winding a flat type wire around a tooth in a direction...
Switch control device for vehicle
A switch control device for control of drives of power windows and power side mirrors of a vehicle, which has a simple and easy-to-operate switch panel provided...
Insert molding technique
An insert component (2) is located at a predetermined position between a pair of halves of a mold (1) in an open state while being held by a support (12) for...
Spark plug manufacturing apparatus and method of manufacturing spark plug
The spark plug manufacturing apparatus includes a holding plate formed with a plurality of mounting holes penetrating from a front surface to a rear surface...
Seat air conditioner for vehicle
A seat air conditioner for a vehicle seat includes a blower unit which has a blower fan and an air discharge duct, a vibration isolation unit arranged between...
A fluid machine has a compressor device for compressing refrigerant of a refrigerating cycle for an automotive vehicle, an electric rotating device operating as...
Diagnostic device for secondary air supply system
A secondary air control system supplies secondary air to the upstream of a catalyst purifying exhaust gas in an exhaust passage of an engine. A diagnostic device...
Distributed control system
In a distributed control system, a first electronic control unit sends trigger information to a second electronic control unit. The trigger information includes...
Tire air pressure monitoring system
A tire air pressure monitoring system is provided with at least one trailer-use receiving unit, which is mounted at a rear end of a tractor head to receive radio...
Navigation system with licensing function
When a navigation system is started for the first time, a time/position information item unique to each navigation system is generated based on a position and...
Network system using management frames for supervising control units
In a network system, each ECU transmits a start control frame when to start, and is started when it receives the start control frame from any other ECU during...
SINR measurement method for OFDM communications systems
A signal to interference-plus-noise power ratio (SINR) measurement method for wireless communications systems which employ orthogonal frequency division...
Electronic unit having identification information thereof
The electronic unit having identification information thereon includes a casing, an electronic circuit contained in the casing, a connector fitted to the casing,...
Vehicular alternator with a pair of dissimiliar metal alloy collector
A vehicular alternator includes a rotor, a stator and a brush device. The rotor includes a rotor coil wound around pole cores and a pair of collector rings...
Acrylic pressure sensitive adhesive and pressure sensitive adhesive tape
The purpose of the present invention is to provide an acrylic pressure sensitive adhesive and a pressure sensitive adhesive tape preferable to be used for...
Compound magnetic material and fabrication method thereof
A compound magnetic material having high heat resistance is provided. A fabrication method of a compound magnetic material includes the step of preparing mixed...
A sensor device has a sensing portion, a connector terminal, and a case housing the sensing portion therein and forming a terminal fixing portion. The connector...
Oil pressure control device for automatic transmission
In an automatic transmission having multiple oil pressure control valves for controlling friction engagement elements, a first and second pressure modulating...
Control device for free piston engine and method for the same
A free piston engine has a pair of pistons opposing to each other and movable in a cylinder, to form a combustion chamber between the pistons. A mixed gas of air...
Fluid flow detecting apparatus
A fluid flow detecting apparatus is disclosed for detecting a characteristic of fluid flowing in a fluid passage. The fluid flow detecting apparatus includes a...
Brush holding device
The brush holding device includes a brush holder having a brush-housing chamber, and a holder plate to which the brush holder is attached. The holder plate is...
Pattern display device and game machine including the same
A game machines has a back side display unit composed of reels for displaying back patterns, and a front side display unit composed of transparent EL panels for...
A protruding portion protruding toward the outside a tank is formed on a core plate in a range corresponding to a straight portion of a flat tube inserted and...
Vapor compression cycle having ejector
A first evaporator is arranged on a downstream side of an ejector, and a second evaporator is connected to a refrigerant suction inlet of the ejector. A...
Exhaust gas cleaning device for internal combustion engine
In an engine, when it is determined that catalyst, which is held on a filter substrate of a particulate filter, is not in an active state, an ECU executes a fuel...
Exhaust gas purification system of internal combustion engine
An electronic control unit (ECU) of an internal combustion engine calculates a present deposition quantity of exhaust particulate matters based on operating...
Compression ignition engine control apparatus ensuring desired output of
An engine control apparatus for a multi-cylinder compression ignition internal combustion engine includes a combustion status sensor and a controller. The...
In a DC to DC converter, first and second primary windings are magnetically coupled to a first secondary winding. Third and fourth primary windings are...
Rotation detecting device
A rotation detecting device for detecting a rotating object includes a housing having a bearing and an mounting surface, a rotor member having magnetic...
Current sensor having hall element
A current sensor includes: a current path; a semiconductor substrate; and a Hall element on the substrate. The Hall element detects a magnetic flux in a magnetic...