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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,...
Power supply circuit with series regulator
A series-regulator type of power supply circuit is provided. In the circuit, the emitter and collector of a transistor are connected to power input/output...
Self-luminous display device having an inorganic EL element light emission
unit between electrodes
A self-luminous display device includes emission pixels which are formed by sandwiching, through insulator layers, an emission layer between first and second...
Compact spark plug with high gas tightness
A spark plug has a compact structure where a threaded portion of a metal shell has a size of M10 or M12 and the width between any two opposite side surfaces of a...
Power supply system for a vehicle
In a power supply system for a passive safety device, a step-up circuit steps up an input voltage based on a supply voltage from a battery to obtain a...
Structure of gas sensor ensuring stability of electrical connection
A gas sensor includes a sensor element, a housing, a hollow porcelain insulator, electrical contacts, a holder, and an air cover. The sensor element is retained...
Silicon carbide semiconductor device and method for manufacturing the same
A method for manufacturing a silicon carbide semiconductor device includes the steps of: preparing a semiconductor substrate including a silicon carbide...
The object of this invention is to have shorter sealing chambers (preheating chamber and gradual cooling chamber) located before and after the brazing...
Rotary pump for braking device
The curvature of a circular arc constituted by a side of a suction groove is made larger than that of a circular arc constituted by a side of a discharge groove....
Fluid machine operable in both pump mode and motor mode and waste heat
recovering system having the same
A check valve is provided to each discharge port, which communicates between a corresponding working chamber and a high pressure chamber in an integrated...
Noise-resistant circuit and apparatus using same
An airbag apparatus for safety includes an airbag inflating in response to a signal, and a sensor sensing a movement and generating the signal in response to the...
Fuel injection device of internal combustion engine
A fuel injection device has a two-way control valve driven by a two-position actuator. The control valve directly controls oil pressure in a back pressure...
Control device for engine valve and control system for engine
A rotational phase difference of a camshaft relative to a crankshaft in a variable valve timing mechanism is controlled by an operation of an oil control valve....
A cover member of an ultrasonic sensor has a first engagement portion and a second engagement portion, which are respectively engaged with a third engagement...