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Electromagnetic switch for starter
An electromagnetic switch mounted on a starter for cranking an internal combustion engine includes an excitation coil for driving a plunger upon supplying...
Liquid level sensor switch
A liquid level sensor switch comprising a case, a rod type guide vertically extending from an inside bottom center of the case, a float having a center bore...
Gas sensor with improved structure of protective cover
An improved structure of a protective cover assembly of a gas sensor is provided. The protective cover assembly is of a double-walled structure made up of an...
Corrugated fin and heat exchanger using the same
In a corrugated fin which is formed and bent into a wave-form, a plurality of both-side-cut-louvers 8, which are laminated on each other and formed into a group,...
Internal combustion engine knock determination device
An engine ECU executes a program including the steps of: detecting a vibration corresponding to a first radial resonance mode by using a band-pass filter, from...
Variable valve timing controller for internal combustion engine
A motor current is estimated based on a target motor speed, an actual motor speed, and an engine speed. When the estimated motor current exceeds a predetermined...
Tire location detecting apparatus configured with rotation direction
detecting devices and triggering device
A tire location detecting apparatus for a vehicle with four wheels includes four rotation direction detecting devices, four transmitters, a triggering device, a...
Electronic control apparatus for motor vehicle
An ECU of a vehicle is activated to communicate with a user validation apparatus while a specific signal such as an ignition signal is being produced, and to...
Current detection apparatus
A current detection apparatus includes a magnetic core having a ring shape with a gap and a center opening portion through which a current path is disposed, and...
Hollow laminated piezoelectric element and its manufacturing method
A hollow laminated piezoelectric element having excellent durability and reliability and capable of obtaining a high output, and a method of manufacturing the...
A combination switch includes a combination switch body 1 fixed to a steering column of a vehicle, an operating lever 2 swingably mounted on the combination...
Air-conditioner for vehicle use
When a switching signal to switch the mode to the defroster mode is generated and the target air volume is smaller than a predetermined air volume .alpha., the...
Fuel vapor treatment apparatus
A fuel vapor treatment apparatus is provided with a purging passage for introducing and purging fuel vapor produced in a fuel tank to an intake system for an...
Apparatus for estimating air-fuel ratios and apparatus for controlling
air-fuel ratios of individual cylinders...
An individual-cylinder air-fuel ratio estimation model is designed so as to consider the mixing of gases exhausted from adjacent combustion cylinders, and a...
Driving circuit for crew protecting system
A driving circuit for a crew protection device to be mounted in a vehicle includes a squib for operating the protection device when a preset amount of electric...
The radar apparatus includes a laser light emitting section successively emitting laser lights, a reflection light detecting section receiving, as reflection...
A magnetic sensor includes a sensing chip having a magnetoresistive element for sensing a magnetic vector and a magnet for biasing the magnetic vector sensed by...
Spark plug with high capability to ignite air-fuel mixture
A spark plug according to the invention includes a metal shell, a hollow insulator, a center electrode, and a ground electrode. The insulator has a first end...
Rotor of rotary electric machine
A Lundell type rotor core with a pair of side cores and a magnetic-pole cylindrical portion has a structure in which the magnetic-pole cylindrical portion is...
Semiconductor mechanical sensor
A semiconductor mechanical sensor having a new structure in which a S/N ratio is improved. In the central portion of a silicon substrate 1, a recess portion 2 is...
Engine start control system
An engine start control unit enables engine start when a user performs a predetermined normal time push operation on a push switch in a normal mode. The engine...
Valve timing controller with separating member
A valve timing controller includes a first rotating element and a second rotating element. The controller further includes a link mechanism part including arm...
Variable valve timing apparatus with reduced power consumption and control
A convergence determination of intake valve phase control is made by comparing a phase deviation of an intake valve from a target phase with a convergence...
Pressure sensor for a vehicle
A pressure sensor is provided with a housing which has an opening portion for communicating an interior of the housing with an exterior, and a pressure detecting...
Fuel type identifying apparatus
A fuel tank is allowed to hold any of types of liquid fuels and currently hold one type of liquid fuel. A light emitting element outputs a light beam of a...
Passive safety system and determination device
A determination device includes a single acceleration sensor for measuring an acceleration of a vehicle and a determination circuit for determining severity of a...
Temperature compensation circuit
A temperature compensation circuit consists of a thermo sensitive resistance, a fixed resistance, a logic buffer, and a logic inverter, without incorporating any...
Control apparatus for automotive alternator having capability of reliably
detecting disconnection between...
According to the present invention, there is provided a control apparatus for an automotive alternator which includes a switch, a target voltage setter, a...
Substrate package structure and packaging method thereof
A substrate package structure includes bumps disposed on a surface side of a first substrate and a surface side of a second substrate. The bump at the first...
Semiconductor device, method and apparatus for fabricating the same
A semiconductor device has at least one semiconductor element, at least one radiator plate thermally connected with said semiconductor element, and a molded...
Air conditioner for vehicle use
An air conditioner for automotive vehicle use intended to prevent a defrosting operation in an instantaneous foot-defroster mode. The DEF mode in which air...
Multiple discharge ignition control apparatus and method for internal
In a multiple discharge ignition control apparatus, a battery, an energy storage coil and a first IGBT are connected in series. Further, the energy storage coil,...
Gauge pointer and light guide structure
A gauge with indicating pointer has three light sources on a printed circuit board. A rear dial plate has rear markings such as MPH indicia. The first light...
A pressure sensor includes a metal housing and a semiconductor chip. The housing has a diaphragm unitary with the housing and an inlet for introducing fluid to...
A pressure sensor includes a sensor element having a sensing portion for generating a signal upon receiving a pressure, a pressure transmission member having one...
Sensor device having a buffer element between the molding and the sensing
A method of manufacturing a sensor device includes a step of forming a sensor chip including a sensing element and a wiring portion connected to the sensing...
Humidity-sensitive element for humidity sensor
The invention provides a humidity-sensitive element using, as a humidity-sensitive film, a polyimide having a molecular structure capable of forming a network...
Vehicle-installed microcomputer system that interrupts power to higher
accuracy power supply circuit for sensor...
The vehicle-installed microcomputer system includes an A/D converter converting analog signal sent from an onboard sensor circuit into digital signal, a...
Highly reliable direct-type tire inflation pressure sensing apparatus
A tire inflation pressure sensing apparatus includes a pressure sensor, a transmitter, a transceiver, a receiver, and a determining device. The pressure sensor...
Smart key system
A smart key system for a vehicle determines that a mobile communicator is not in the passenger compartment and that an in-trunk communicator communicates with...
LED-based lamp apparatus
A LED-based lamp apparatus includes a LED unit having multiple LEDs connected in series, a step-up circuit for stepping up a power supply voltage by a switching...
Engine start controlling system
An engine start controlling system for an engine of the vehicle, makes an authentication for a user ID received from a mobile device and authentications for...
Optical sensor with rotary shaft-driven light intercepting member
An optical sensor includes a light receiving device disposed in a housing, an exterior filter rotatably mounted to an attachment surface of the housing, and a...
Handle switch device of vehicle
In a handle switch device of a vehicle, a switch casing which surrounds a bar handle and accommodates a switch in the inside thereof is mounted on the bar...
Organic EL devices and production process thereof
An organic electroluminescent device comprising a light-emitting layer between a pair of electrodes, the light-emitting layer comprising a mixture of a...
For integrally bonding a first member and a second member made of copper or a copper alloy by brazing, a paste brazing material composed essentially of copper...
Passenger detection system
A passenger detection system for a person on a seat of a vehicle, includes a long range capacitance sensor for measuring a long range capacitance between a...
Navigation apparatus and program
In a vehicle navigation apparatus, displaying an enlarged view of an intersection within a guide route is suppressed when a value N associated with a...
Electronic component mounting structure
An electronic component mounting structure includes a board and an electronic component mounted on a surface of the board. The board includes lands. The...
Current sensor and method of manufacturing the same
A current sensor includes a semiconductor substrate, a ring shaped magnetic core having a center opening and a gap and provided to a surface of the substrate,...