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Electronic control apparatus having a plurality of power source circuits
In an electronic control apparatus having a one-chip microcomputer and a power output circuit, a voltage abnormality detecting circuit is provided to detect...
Auxiliary system for starting engine
A load operating means controls electricity supplied from a power source to a starter in an auxiliary system for starting an engine. An engine control means and...
Individual information management system
Of a vehicle, a steering position, a seat position, and mirror angles are registered as setting data along with an ID code of the vehicle with a data center....
An ignition coil has a connector electrically connected to an external circuit, an igniter for accommodating a switching element adapted to cause a current...
Electric current sensor having magnetic gap
An electric current sensor includes: a core having a ring shape and including a plurality of core pieces, which are laminated and integrated to provide the core;...
Power control apparatus for a turbo charger equipped with an assist motor
and a motor driven turbo charging...
A power control apparatus includes an inverter giving a rectangular waveform drive signal to an induction motor, an inverter voltage controlling section...
Motor control apparatus
In an automatic transmission position control by a motor, it is determined whether the present instant belongs to a starting period, that is, the present instant...
Motor drive control apparatus and method having motor current limit
function upon motor lock
A direct current motor for an engine throttle control is driven with a motor current of 100% duty ratio, when a throttle valve is to be moved from one throttle...
Discharge lamp lighting apparatus
The discharge lamp lighting apparatus includes a high-voltage generating coil connected in series to a discharge lamp for applying a high voltage to the...
Motor, fuel pump, commutator, and method for manufacturing a commutator
A commutator includes six segments disposed in the direction of rotation, and is attached to one axial end of an armature. By the commutator rotating together...
Stator coil made of joined conductor segments for rotary electric
machinery and method for manufacturing the same
A stator core that includes electrical insulation between a small conductor segment and large conductor segment which forms stator coils inserted into slots of...
Production method of ceramic catalyst body
This invention provides a method for producing a ceramic catalyst body that can directly support a catalyst on a ceramic support without disposing a coating...
Production method for laminate type dielectric device and electrode paste
This invention provides a method of producing a laminate type dielectric device free from peeling of an electrode layer and a ceramic layer and from voids in...
Balanced variable displacement fluid apparatus
In a fluid apparatus used as a compressor, a swing support member is constructed of a hook-type adjustable joint, and supports a swing member in capable of...
Optical information reading apparatus
The present invention provides an optical information reading apparatus capable of producing uniform and bright illumination light and of projecting the...
Air conditioning apparatus for vehicle
An interior of an air conditioning case is partitioned into a first air passage extending from an inside air suction port to a foot opening portion and a second...
Idling speed control system and method
An controller detects a change in a load generation state of an accessory device that generates a load on the internal combustion engine during operation, and...
Physical quantity sensor capable of outputting time-serial signal
indicative of plural ranges of physical quantity
A physical quantity sensor detecting physical quantity, such as acceleration or angular velocity, is provided and mounted on, for example, a vehicle. The sensor...
Manufacturing method for cylindrical part
It is an object of the present invention to provide a method of manufacturing a cylindrical part with a thin-walled portion at a lower cost, and according to the...
Failure diagnosis method of vehicle communication network
When a resistance value of a CAN bus main line is 60 .OMEGA., the CAN bus main line is in a normal state. However, the resistance value thereof differs depending...
Voltage output control apparatus and method
When the output of a boosted voltage is started by a boosted voltage generation circuit, the voltage supplied to memory cells and level shift circuits side...
Switching device for controlling large amount of current
A switching device for controlling a large amount of current includes a circuit board carrying electronic components thereon, a power-switching element...
Internal planetary gear mechanism
An internal planetary gear mechanism reduces a load applied to tooth surfaces of an external gear and an internal gear, a sliding portion such as a bearing and...
Fuel injection valve
A fuel injection valve has a nozzle having a valve seat formed along an inner wall of the nozzle. Injection holes are located on an outlet side of the valve...
Ignition device for internal combustion engine
An internal combustion engine ignition device has a resin layer in a clearance between an insulator and a winding contained in the insulator. The ignition device...
Safety fuel injection pump
A fuel injection pump includes a camshaft, an eccentric cam, a cam ring, a housing and plungers. The camshaft is rotated by an engine. The cam is provided...
Intake control device for internal combustion engine
An intake control device for an engine includes a throttle body that defines a throttle bore, which is substantially circular-shaped in cross section, through...
Fluid volume measuring apparatus with bubble in fluid
A fluid volume measuring apparatus for measuring volume of fluid flowing out of a measured object includes a passage member that defines a measurement passage....
Air conditioning apparatus for vehicle
In an air conditioning apparatus for a vehicle, a distance between the vehicle and a forward vehicle is detected. When the distance is equal to or less than a...
Method for connecting printed circuit boards and connected printed circuit
A first printed circuit board includes a first insulating board substantially made of thermoplastic resin and a first conductive pattern. A second printed...
Iterative logical renewal of navigable map database
An improved method is provided for identifying road sections in a navigation database. The method includes: receiving a database update identifying at least one...
Method and apparatus for sampling a sensor signal
In an apparatus, a timing signal outputting unit outputs a timing signal every time interval. The time interval is shorter than a pulse time interval of the...
Vehicle power steering apparatus capable of suppressing vibration of EPS
motor during changes in steering angle
In a power steering apparatus employing an EPS (electrical power steering) motor coupled to a steering mechanism, when vibration of the steering mechanism is...
Signal transmitter having voltage booster circuit and method of operating
In a radio signal transmitter, a microcomputer operates by receiving an output voltage of a battery to sequentially generate a voltage boosting control signal....
Electrical resource device and load driving device
An electrical resource device of the present invention includes a current restriction portion for restricting current flowing in a semiconductor element based on...
Radar device for vehicle and method for adjusting mount angle for mounting
radar device on vehicle
Reception antenna elements are formed so that the reception beam axis in the vertical direction of at least one reception antenna element of a ...
ID registration method for tire pressure sensor, ID registration
apparatus, ID registration tool for tire...
Provided is a tire pressure monitoring system capable of preventing mistaken registration of ID due to radio interference. In the system, a tire pressure...
Environmental test method and system
In an environmental test system for controlling a temperature environment of a member to be tested at least from a low temperature environment to a high...
Voltage detecting apparatus applicable to a combination battery
A voltage detecting apparatus for a combination battery includes a multiplexer type flying capacitor voltage detecting circuit, a synchronous control type A/D...
Rotation angle detecting device
A rotation angle detecting device includes a magnet (4), a magnetic substance unit (5), and a non-contact magnetic detection element (7). The magnet (4) rotates...
Rotation detecting device
A rotation detecting device includes a rotary member having teeth, a biasing magnet, a magnetic sensor unit and a differential amplifier circuit for providing an...
Vehicle AC generator apparatus having improved generator control apparatus
A vehicle AC generator apparatus includes one or more rectifier elements for rectifying a generated AC voltage, and a generator control apparatus which monitors...
Brushless rotary electric machine having tandem rotary cores
A brushless rotary electric machine includes a stator having an annular armature core with first radial teeth at the outer periphery thereof and second radial...
Alternator for a vehicle
In a side-mount type vehicle alternator, the mounting faces of a larger stay and a smaller stay are arranged such that the fictive line, which runs through the...
Object detection apparatus for a vehicle
An object detection apparatus for a vehicle includes a light emitter covered with an emission window, a light receptor covered with a reception window, a defect...
Corrosion resistance structure of ceramic heater and gas sensor equipped
A ceramic heater is provided which may be employed in a gas sensor. The ceramic heater includes a heating element disposed inside a ceramic body, a connector...
Method of manufacturing silicon carbide semiconductor device
An insulating film (2) is formed on a semiconductor substrate (1) formed of silicon carbide. A contact hole (3) is formed in the insulating film (2) to expose a...
Method for manufacturing magnetic sensor
Magnetoresistive devices are formed on the insulating surface of a substrate made of silicon. The devices are connected in series through an insulating film...
Mechanical fuse and production method for the same
A mechanical fuse has further improved and stabilized fatigue limit ratio, and can obtain high reliability under a using condition in which cyclic loading is...
Contact structure for connector array and electronic appliance having the
A contact structure for electrically connecting a spring-loaded connector array and a pad array, the spring-loaded connector array having a plurality of...