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Voltage booster circuit having back-up circuit and battery voltage
In a voltage booster circuit, a switching transistor turns on and off a flow of an electric current in a booster coil thereby to boost a voltage supplied form a...
Voltage regulator for controlling output voltage of automotive alternator
A voltage regulator for an automotive alternator includes a switching transistor that controls an amount of field current supplied to a field coil of the...
Wiper control apparatus and method for automatic vehicular wiping
The wiper control apparatus comprises a precipitation detector, a surrounding state detector and a wiper controller. The precipitation detector detects a...
Rotor of rotary electric machine and method of manufacturing the rotor
In a rotor of a rotary electric machine, a rotor core is formed by helically winding a material sheet. The material sheet forms teeth on a first side of a middle...
Electric refrigeration compressor having a cooling system for an
In an electrical compressor having a motor and an electrical circuit integrated with a compression portion, a part of electrical components of the electrical...
Package type semiconductor device
A package type semiconductor device comprising: a semiconductor chip having a semiconductor part; a main electrode for connecting to a first region of the...
Semiconductor module and semiconductor device
In a semiconductor device, a semiconductor module contains a semiconductor element and having a radiating portion, and a heat absorbing member has a heat...
Semiconductor apparatus with heat radiation structure for removing heat
from semiconductor element
A semiconductor element, and a pair of insulation substrates sandwiching the semiconductor element therebetween forms a substrate unit. The substrate unit is...
Heat exchanger for heating, and air conditioner for vehicle use
A heat exchanger for heating comprises a plurality of heat transfer plate members (34) arranged in parallel with each other at predetermined intervals; and...
Filter and canister having the same
A canister is connected to a fuel tank to adsorb fuel vapor vaporized in the fuel tank and includes a canister housing and a canister main body, which is...
Vehicle headlamp assembly with lampshade and lighting circuit separately
mounted to reflector
In a headlamp assembly, a reflector unit includes a bearing surface for supporting a lighting control circuit. The lighting control circuit is mounted to the...
Connecting structure of pipe and pipe joint and method of connecting the
pipe to the pipe joint
In a connecting structure of a pipe of an air conditioning unit and a pipe joint for supporting the pipe, an insertion hole through which the pipe is inserted is...
Die forming method for forming female screw
A molten magnesium material is filled into a product section of a die. The molten magnesium material is cooled and solidified in the die, so that a molded...
Fuel feed apparatus having sub-tank and jet nozzle
A fuel feed apparatus, which is accommodated in a fuel tank, includes a sub-tank, a jet pump, and a covering member. The sub-tank includes a fuel inlet. The jet...
Ignition control system for internal combustion engine
An ignition control system for an internal combustion engine includes a throttle opening detector, a crank angle detector, a stroke determiner, and an ignition...
Fuel injection control system of internal combustion engine
An electronic control unit (ECU) of a fuel injection control system of an internal combustion engine feedback-controls injection timing so that a cylinder...
Semiconductor dynamic quantity sensor
In a semiconductor dynamic quantity sensor, a mass serving as a weight portion for detecting application of a dynamic quantity is divided into three masses (301,...
Air-fuel ratio sensor
An air-fuel ratio sensor includes a sensor element inserted through a cylindrical housing for detecting an air-fuel ratio in an atmosphere of unburnt gas, and a...
Method and apparatus for dynamically determining a mobile station's active
set during a connection rescue procedure
A method for allowing a mobile station (MS) to dynamically adjust its T_ADD_R and T_DROP_R pilot signal strength thresholds (established by pilot E.sub.c/I.sub.o...
Receiver, receiving method, and recording medium which records program for
receiving data signals
A receiving section outputs a received signal. An estimation section estimates transmission path characteristics, using the received signal and a modulated data...
An auxiliary resonance type DC/DC converter which is compact, inexpensive and highly efficient is provided. In a step-down type DC/DC converter 15, comprising...
Vehicle direction indication device with flash rate that does not appear
to change when battery voltage varies
A vehicle direction indication device is configured such that a voltage of a battery power supply is detected, and when a direction indication light switch is...
Portable transmitter for remotely controlling vehicular devices
When the connection of a cable to a control interface is confirmed, and thereafter a write command is received, a data write process is executed to renew...
Control apparatus for controlling traction motor equipped in vehicle
A motor control apparatus calculates a current command value based on a torque command value and a rotational speed of the traction motor, and calculates a...
Electric actuator system
The detection of a pulse signal in an initialization pattern is ensured regardless of the position where a DC motor is stopped. A CPU detects the pulse signal...
Stator arrangement of vehicle AC generator
In a vehicle AC generator, a plurality of conductor segments having connection-ends is connected to form a stator winding. Each pair of the connection-ends is...
Silicon carbide semiconductor device having junction field effect
transistor and method for manufacturing the same
A silicon carbide semiconductor device includes: a semiconductor substrate including a base substrate, a first semiconductor layer, a second semiconductor layer...
An infrared sensor formed as a membrane on a substrate and detecting infrared rays by an infrared detector on that membrane, wherein even if an adhesive used for...
Semiconductor dynamic sensor, and methods of transport and collet suction
for the same
A semiconductor dynamic sensor has a displacement portion, which is composed of a movable electrode and first and second fixed electrodes, formed in a...
Control method and device for automatic transmission
A control method for an automatic transmission is capable of quickly determining whether gear shifting is permissive. The control method varies the command value...
Steering apparatus for use in an automotive vehicle and equipped with a
transmission ratio adjusting mechanism
A transmission ratio of a rotational angle of an output shaft to a rotational angle of an input shaft is adjustable by a transmission ratio changing mechanism...
Cooling apparatus boiling and condensing refrigerant
A cooling apparatus includes a refrigerant tank having a surface to which heating devices are attached and containing liquid refrigerant which is boiled and...
A diecasting machine capable of realizing highly precise injection of molten metal at high-speed without using an accumulator is provided, which includes: an...
Control apparatus for internal combustion engine
During cylinder cut-off in which fuel injection for some cylinder(s) is halted, a variable valve operation mechanism or the halted cylinder is controlled based...
Control apparatus for device having dead band, and variable valve system
A control unit employed in a variable valve timing apparatus vibrates a control signal for controlling an oil-pressure control valve. If the vibration center of...
Actuator having drive cam and valve lift controller using the actuator
An actuator is used for controlling an intake valve lift of an automotive engine. A control shaft is joined with a transmission device on its one end side, and...
Pressure sensor contained in casing
A pressure sensor for detecting, e.g., an intake manifold pressure of an internal combustion engine is composed of a resin casing, a sensing member contained in...
An ultrasonic sensor includes a piezoelectric vibrator, a reverberation measuring device and a compensating device. The piezoelectric vibrator vibrates to...
Semiconductor dynamic quantity sensor
In a semiconductor acceleration sensor (S1), above one side of a first silicon substrate (10) made of a semiconductor and serving as a fixed electrode (11), a...
Capacitance type acceleration sensor
A capacitance type acceleration sensor includes a semiconductor substrate, a weight portion supported with the substrate through a spring portion, a movable...
Evaporative emission leak detection system with brushless motor
An evaporative emission leak detection system provides for detecting a leakage of a fuel vapor evaporating in a fuel tank by using a pressure difference between...
Injector nozzle and method of manufacturing injector nozzle
A fuel injector has an orifice member having an aperture for injecting atomizing and metering fuel. The orifice member is made of a plate material. The orifice...
An engine controller controls an injection quantity or intake airflow supplied to a cylinder of an engine. Constant associated with e running resistance of the...
Electronic control unit for a vehicle
In an electronic control unit for a vehicle, control data is stored in a volatile memory until a predetermined time passes after an ignition switch is turned...
Manufacturing method for a plurality of manufacturing lots
As a basic managing pattern, each manufacturing lot containing at least one workpiece is designated as a main objective to be managed. An appropriate number of...
Communication system, communication method and mobile terminal
A Micro-cell is formed to include a plurality of spot-cells. Communication is executed between a micro-cell base station and a mobile terminal in the micro-cell,...
GPS receiver using software correlation for acquisition and hardware
correlation for tracking
A GPS receiver includes a CPU for synchronously acquiring the GPS satellites by using software correlating and a hardware section composed of multiple hardware...
Rotation angle detecting device
A rotation angle detecting device includes a magnet, a magnetic flux concentrator, a first magnetic sensor, and a second magnetic sensor. The magnet is provided...
Pressure detecting device
A pressure detecting device includes a semiconductor substrate (30, 200, 300, 400) for outputting an electrical signal corresponding to an applied pressure...
Optical object detection apparatus designed to monitor front and lateral
zones of vehicle
An optical detection device for vehicles such as a laser radar is provided. The device consists of frontal and lateral object detection optical systems to...