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Valve timing adjusting apparatus
A valve timing adjusting apparatus has a housing and a vane rotor to form multiple fluid chambers, and a relative position of the vane rotor to the housing is...
Physical quantity sensor having angular speed sensor and acceleration
A physical quantity sensor includes: a substrate; an angular speed sensor disposed on the substrate; and an acceleration sensor disposed on the substrate. The...
Occupant sensing system and adjustment method thereof
An occupant sensing ECU determines an occupant state on a seat by comparing occupant determination threshold values with a corresponding sensed load data value,...
Input to output isolated DC-DC converter
In a DC to DC converter, a transformer circuit includes a primary winding and a secondary winding member composed of series-connected first to fourth secondary...
Band gap reference voltage circuit
In a band gap reference voltage circuit, a band gap cell circuit composed of two transistors is driven with different current densities under a bias condition in...
Control apparatus for automotive alternator having capability to
accurately detect temperature of alternator
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...
Laminated piezoelectric element and its manufacturing method
This invention provides a laminated piezoelectric element that suppresses the peeling off of an electrically conductive adhesive and has excellent durability and...
Infrared gas detector and method of the same
An infrared gas detector for detecting a density of a sample gas includes an infrared light sensor for detecting the density of the sample gas under an influence...
Noiseless gas concentration measurement apparatus
A noiseless circuit structure of a gas concentration measuring apparatus is provided. The gas concentration measuring apparatus includes a control circuit and a...
High-pressure pump having small initial axial force of a clamping bolt
A high pressure pump for preventing distortion of a sealing surface or a cylinder form. The high pressure pump has an intermediate member including a cylinder...
Air-conditioning apparatus including motor-driven compressor for idle
A low-cost vehicle air-conditioning apparatus for idle stopping vehicles is capable of performing both cooling and heating operations throughout the year. The...
Simple structure of fuel pressure regulator designed to minimize pressure
A fuel pressure regulator for use in internal combustion engines. The fuel pressure regulator includes a valve seat and a vale body disposed downstream of the...
Start controller for internal combustion engine
At an intake timing of an initial combustion cylinder, an actual intake valve timing is adjusted to a target intake valve timing corresponding to a target intake...
A pressure sensor for detecting a pressure and for outputting a signal based on the piezoresistance effect includes a substrate having a sensor chip on one side...
Capacitive acceleration sensor system
An acceleration sensor system includes: a first and a second fixed electrodes; a movable electrode for providing a first and a second capacitors; a detection...
Multi-layer board manufacturing method
Two types of resin films are prepared for manufacturing a multi-layer board containing a chip component. A fist type has a via hole for the chip component to be...
Manufacturing method of stator for vehicular rotary electric machine
A manufacturing method of a stator for vehicular rotary electric machine includes: forming an indentation in a radial direction in a side face of each of...
Apparatus and method for detecting deterioration of exhaust gas sensor
A deterioration detecting apparatus for an exhaust gas sensor of an internal combustion engine, the exhaust gas sensor including a sensor element and a heater...
Vehicle control system for executing a series of processes in electronic
A series of processes is allocated to functional blocks arranged in electronic control units (ECUs) of a vehicle control system, and each functional block...
Collision determining device
Satellite sensors are disposed in both sidewalls of a vehicle; each of the satellite sensors detects as an acceleration a collision of an obstruction with the...
Radio communication using a plurality of base stations
A communication zone is defined by a plurality of cells, which are separated from one another and has respective fixed base stations. The base stations in the...
Printed circuit board with a built-in passive device, manufacturing method
of the printed circuit board, and...
A multilayer printed circuit board with a built-in capacitor includes a plurality of resin films, each of which is made of thermoplastic resin and has a...
Rotation angle detecting device
A rotation angle detecting device is rotated by a rotating object via a gear mechanism to detect a rotation angle of the rotating object. The rotation angle...
DC-DC converter for boosting input voltage at variable frequency
A DC-DC converter for boosting an input voltage to a higher output voltage includes an inductor, a field effect transistor, a first ON signal generating circuit,...
Apparatus for controlling on-vehicle generator
A generation controller controls an amount of power generated by an on-vehicle generator responsively to a command signal from an external controller. The...
Electric generation control apparatus for vehicle alternator
An electric generation control apparatus for a vehicle alternator receives an electric generation control signal transferred from an ECU placed apart from the...
Wire bonding method and semiconductor device
A wire bonding method for bonding a plurality of conducting wires to connect first conductors and second conductors has the following steps. 1) Bonding a first...
Fuel cell control system
A plurality of individual fuel cells are connected in series with each other to construct the fuel cell. The fuel cell is diagnosed on the basis of an average...
Apparatus for detecting deterioration of air-fuel ratio sensor
In detecting a deterioration of an air-fuel ratio sensor, a sensor output change speed integrated value is calculated when an element temperature of a solid...
Downshift control for automotive automatic transmission
An automotive automatic transmission control apparatus is provided which works to increase the power of an engine in response to a request to down-shift the gear...
Air passage switching device and vehicle air conditioner
An air passage switching device includes a slide door slidable along first and second opening portions partitioned by a partition portion, a guide member for...
Impeller and apparatus using the same
An impeller rotates for pressurizing fluid in a pump passage. The impeller includes an inner circumferential portion and an outer circumferential portion. The...
Injector having structure for controlling nozzle needle
A valve back pressure chamber is provided to exert a back pressure of a first valve needle. Furthermore, a hydraulic pressure passage is provided to extend...
Double-layer vacuum container
A double-layer vacuum container includes: an inner container having a bridging member supported by an outer container in a bridging manner; the outer container...
Heat exchanger for air conditioner
A heat source fluid inlet pipe of a heat exchanger main body 150 comprises a rotation side inlet pipe 27 and a fixed side inlet pipe 23 that are integrated with...
Cooling system used for hybrid-powered automobile
A radiator 9 for electric parts use, which cools an inverter and others relating to the control of an electric motor, and a condenser 12 for condensing...
Fuel injection system
A fuel injection system includes (i) an injector for injecting gaseous fuel and liquid fuel into a cylinder of an internal combustion engine, (ii) a gaseous fuel...
Purge system for internal combustion engine
A canister is connected with a fuel tank to adsorb fuel vapor generated in the fuel tank. The canister is also connected to a downstream side point of an intake...
Fuel pump module anti-siphon valve
A fuel pump system for a fuel tank having a first and a second section has a fuel pump and a jet pump disposed in the first section. The jet pump draws fuel from...
Fuel pressure controller for direct injection internal combustion engine
A fuel pressure control device has a feedback control section for setting a feedback control amount (F/B control amount) in accordance with a deviation between...
Rotation angle sensing device
A rotation angle sensing device calculates an average value of calculation values of time necessary for rotation of each one of sections provided by equally...
Intake apparatus and manufacturing method for the same
An intake apparatus includes housings each defining an intake passage therein. The intake apparatus further includes valve members each being provided to each...
Leak detector for fuel vapor purge system
A suction pump introduces negative pressure into a reference-pressure-detecting portion. A driving voltage V of the suction pump is adjusted in such a manner...
A pressure sensor for detecting a pressure of a pressure medium includes a casing having an element locating portion, a pressure detection element located in the...
An inertia sensor system incorporates a vibration-type angular-speed sensor unit and an acceleration sensor unit provided separately. The inertia sensor system...
An air conditioner has an air conditioning case, a heat exchanger disposed in the air conditioning case to cool air therein, a drain pan disposed at a lower side...
Secondary air supply system and fuel injection amount control apparatus
using the same
A secondary air pipe is connected on the upstream side from catalyst in an exhaust pipe, and a secondary air pump is provided at an upstream portion of the...
Control apparatus of internal combustion engine
The ignition timing is sustained at an initial value during a predetermined time beginning at a start of an engine, and is retarded after the predetermined time...
Method of manufacturing rotor of rotary electric machine
In a method of manufacturing a rotor of a rotary electric machine, a rotor core is formed by preparing a material sheet in a form of a belt. The material sheet...
Data relay device and multiplex communication system
A data relay device connected with a plurality of networks is provided with a transmission timing adjusting device for adjusting the timing of transmission of...