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Tire inflation pressure sensing apparatus based on transponder method
A tire inflation pressure sensing apparatus includes a transmitter on a wheel of a vehicle and a receiver on a body of the vehicle. The transmitter includes a...
Electronic key system for entry objects
An electronic key system for an entry object such as a vehicle is comprised of a portable device and an in-object device. The portable device has a device body...
Angular position determining apparatus with malfunction detector
An angular position determining apparatus is provided which includes a magnet affixed to a rotary shaft and a plurality of magnetic sensor elements and works to...
Engine control apparatus
The engine control apparatus includes: the stop switch body 6; the stop switch knob 3; the lock plate 5 insertable to the stop switch knob 3; the transponder 9...
Control apparatus for electrical generator of motor vehicle
A control apparatus such as an ECU, that controls the generator of a vehicle, measures the engine rotation speed and generator rotation speed while the engine is...
Vane pump having vanes slanted relative to rotational axis
A vane pump is composed of a casing having a cylindrical inner bore and a rotor disposed in the inner bore with an eccentric relation to the inner bore. A...
Valve device for internal combustion engine
A valve device for an internal combustion engine is provided with two flange portions, each of which is arranged at the outer periphery of a valve and has a...
Two sides of a single metal plate are bent to form the structure of a spring terminal having two spring portions. In the spring terminal having such a structure,...
Method of producing winding of dynamo-electric machine
A method of producing a winding from electric conductors received in slots formed in a stator core has the steps of forming a first copying surface at an end of...
Production method of stacked piezoelectric element
A stacked piezoelectric element is produced by alternately stacking a piezoelectric layer and an inner electrode layer. The method includes producing a green...
Vehicle navigation system
In a vehicle navigation system, a data storage device stores data on categories of points of interest indicated on sign boards provided at freeway exits and...
Map search system
Retrieving an on-map position is executed within a targeted search area that is one of search areas. Search information items are stored for retrieving. Each of...
Antenna apparatus and method for mounting antenna
A planar antenna has a radiating element and a ground plate. A body of a vehicle has an internal edge that is formed by making a hole in the body. The planar...
Vehicle positioning control apparatus
A vehicle positioning control apparatus includes a vehicle positioning detection device, a vehicle positioning sudden change detection device, a tire air...
Vehicle security system
When transmitting an instruction for activating an immobilizer function to a vehicle, a base station also transmits a given password for releasing the...
Physical quantity sensing element having improved structure suitable for
electrical connection and method of...
A physical quantity sensing element according to the invention includes an insulating layer and a sensing layer. The sensing layer is configured to generate an...
Vehicle power-generation control unit
The vehicle power-generation control unit includes a voltage detecting circuit detecting a generation voltage of a vehicle generator driven by a vehicle engine,...
Control of vehicle generator using PWM signal with specially determined
duty and frequency
A control apparatus for a vehicle generator includes a switch, a regulator, a fault condition detector, and a PWM signal generator. The switch is selectively...
A ground electrode has one end portion fixed to a metal housing, a bent portion provided at an intermediate portion thereof, and the other end portion positioned...
Ceramic support capable of supporting a catalyst, a catalyst-ceramic body
and processes for producing same
A ceramic support capable of supporting a catalyst comprising a ceramic body having fine pores with a diameter or width up to 1000 times the ion diameter of a...
Method of etching metallic thin film on thin film resistor
An Al film is formed on a barrier metal covering a thin film resistor to have a first opening. A photo-resist is formed on the Al film and in the opening, and is...
Method of manufacturing a sensor device with binding material having a
A sensor device includes a sensor chip and a bonding wire being fixed on a substrate. The sensor device is manufactured by using a binding material made of an...
Torque transmission system
When a first damper contacts both of a protruding portion of a pulley body and a protruding portion of a center hub, a second damper is disposed as being apart...
Seating condition detecting system for vehicle
A seating condition detecting system has four load sensors, a belt tension sensor and a self-diagnostic system. The first and second abnormal ranges are set for...
Apparatus for optically reading information
In an apparatus for optically reading an information code, a case has one wall in which a reading window through which light is transmittable. The reading window...
Control unit for electric power steering
An electric power steering control unit is provided which is capable of detecting a motor current stably irrespective of a temperature variation to improve...
Awakening degree determining system
When a variation amount of a driving operation falls outside of a determining reference, a determining system determines that an awakening degree of a driver is...
Vehicle air-conditioning apparatus that can surely defog window
A vehicle air-conditioning apparatus includes a dehumidification means, which has a compressor and dehumidifies inside of the vehicle, a humidity calculation...
Vehicle air conditioning system with air temperature sensor
A vehicle air conditioning system uses a non-contact temperature sensor for feedback control of the temperature of the air blown out from a blowing opening. The...
Stick ignition coil apparatus for ignition plug
A stick ignition coil apparatus for an ignition plug includes a primary coil arrangement, a secondary coil arrangement, a center core, a coil case, a high...
Fuel feed apparatus having small sized structure
A lid member is mounted to the fuel tank to cover an opening of the fuel tank. A fuel pump is arranged in the fuel tank to pump fuel in the fuel tank. A module...
Injector for high-pressure injection
An injector has a housing, a command piston, a control chamber, a needle, a nozzle chamber, a fuel inflow passage, a fuel discharge passage and an electric...
Throttle control system and method
A throttle control system includes a valve, an electric throttle unit, a control unit, a throttle sensor, a memory device, and a memory execution unit. The...
Fuel injection controller for in-cylinder injection engine
A fuel injection controller of an in-cylinder injection engine determines that a combustion state has deteriorated and executes a split injection for injecting...
Valve timing controller
A vane rotor, a bush, and a press-fitting member are connected with a camshaft of an engine. The bush is supported by an inner surface of a front plate of a shoe...
Control apparatus for an internal combustion engine
A variable valve mechanism performs a valve lift switching operation for an intake valve. ECU defines valve lift switching characteristics corresponding to the...
Capacitive humidity sensor
A capacitive humidity sensor for detecting a humidity change includes a first sensor element having a first capacitance, a second sensor element having a second...
Device for supplying secondary air
There is provided a device for supplying secondary air, which comprises a secondary air passage for supplying secondary air, to an exhaust passage of an engine,...
Structure of gas sensor ensuring high degree of gas-tight seal
An improved structure of a gas sensor is provided which is designed for achieving desired crimping of an end portion of a sensor housing to establish a higher...
Memory control method and memory control apparatus for pipeline processing
A signal generator detects a stage in which a central processing unit (CPU) reads an interrupt vector number from an instruction controller based on an address...
Differential amplifier circuit
In a comparator, diodes are disposed between differential pair transistors and current mirror pair transistors forming active loads. The diodes may be disposed...
Integrated circuit device having clock signal output circuit
Integrated circuit device includes: a wiring; a clock signal output circuit including a ring oscillator; an internal circuit; an internal power supply generation...
Magnetic sensor apparatus and manufacturing method thereof
Two Hall element forming arrangements are formed on a semiconductor substrate. Each Hall element forming arrangement includes a Hall element that is formed in a...
Rotation angle detector
A rotation angle detector for detecting a relative rotation angle of two respective parts includes two sensors, two magnetic flux induction devices as well as a...
Inverter control device
An inverter control device controls the operation of an inverter connected to an electric motor. A switching vector SV is determined as an output switching...
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...
Spark plug with a plurality of ground electrodes
A spark plug according to the invention includes a metal shell, an insulator, a center electrode, a first ground electrode, and a second ground electrode. The...
Spark plug with improved noble metal chip
In a spark plug composed of a center electrode and an earth electrode, at least one of confronting portions of the center electrode and the earth electrode which...
Substrate for mounting semiconductor chip, mounting structure of
semiconductor chip, and mounting method of...
A substrate for mounting a semiconductor chip is formed as a multilayer substrate by alternately laminating insulation layers and wiring layers. Wires of the...
Method for manufacturing semiconductor substrate
An epitaxial layer is formed on a high-resistance semiconductor substrate containing interstitial oxygen at a high concentration, and then a heat treatment is...