Abstract: A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.

Abstract: To reduce noise, there is provided an alternator for motor vehicles having a rotor and a stator which is mounted between a pair of brackets. In the alternator a stator core forming the stator is made up of laminations of thin sheets. And at least a part of the thin sheets making up the stator core are split into four divisions or more in the circumferential direction; the thin sheets of each layer being laid with splits thereof arranged alternately in the circumferential direction.

Abstract: In a gas-flow measuring instrument for measuring a gas flow in an intake gas passage for sucking gas, an abnormal output, deterioration per hour, stain, and breakage of a flow measuring element caused by fluid and foreign materials contained in intake gas are reduced. A gas-flow measuring instrument disposed in an intake gas passage for sucking gas for measuring a gas flow includes a bypass passage for bringing gas flowing along the intake gas passage, a bypass passage inlet opened to the upstream side of a main stream direction of gas in the intake gas passage, and a flow measuring element disposed in the bypass passage.

Abstract: A power source control method of a car control unit in which control takes place according to the control unit temperature or the control of a semiconductor device in the control unit. The temperature of a throttle device is detected using a thermistor and is compared with the reference temperature. Depending on the comparison result, a relay for controlling the power supply to the throttle device is controlled. When the temperature of the throttle control unit rises higher than the reference temperature, the main power source of the throttle device 1 is interrupted.

Abstract: To enable the inclination of the injection direction and the distribution of the penetration force of spray to be adjusted over a wide range, and an axially symmetrical spray shape to be obtained even when the injection hole is inclined, or the shape of the spray to be changed without inclining the injection hole, a fuel passageway 203 is provided as a swirling force adjustment means between the valve seat 201 and injection hole 101 of the fuel injector. This swirling force adjustment means adjusts the distribution of the swirling force of the fuel flowing into injection hole 101, and thus adjusts the spray shape obtained as a result.

Abstract: A gear box for selecting a gear train arranged between input and output shafts and shifting gears is used as a transmission, and furthermore, a motor 2 is connected to a differential device 111 of the input and output shafts, and a plurality of mesh mechanisms of an input shaft 4 or an assist input shaft 54 are connected, and the motor 2 is driven, thus a generating machinery 1 is started.

Abstract: The object of the present invention is to propose an etch channel sealing structure characterized by excellent impermeability to moisture and resistance to temporal change of the diaphragm in the pressure sensor produced according to the sacrificial layer etching technique, and to provide a pressure sensor characterized by excellent productivity and durability. After a very small gap is formed by the sacrificial layer etching technique, silicon oxide film is deposited by the CVD technique or the like, there by sealing the etch channel. Further, impermeable thin film of polysilicon or the like is formed to cover the oxide film. This allows an etch channel sealing structure to be simplified in the pressure sensor produced according to the sacrificial layer etching technique, and prevents entry of moisture into the cavity, thereby improving moisture resistance. Moreover, sealing material with small film stress reduces temporal deformation of the diaphragm.

Abstract: A press-machined fuel induction pipe 40, a hollow tubular type of fixed core 1 with a flange at its upper end, and a nozzle holder 18 that was press-machined into a slender tubular shape and has an orifice plate equipped with a valve seat at the lower end of the nozzle holder, are connected by welding. The upper inner surface of nozzle holder 18 and the outer surface of fixed core 1 are welded after being press-fit. A movable core 14 and a valve body 16 are connected to the welded assembly via a point 15 having a spring function. On the outer surface of nozzle holder 18 is provided an electromagnetic coil 2, the outside of which is provided with a tubular yoke 4 whose upper end is connected by welding to the flange 1a of fixed core 1 and whose lower end is press-fit on the outer surface of nozzle holder 18.

Abstract: A thermal type air flowmeter arranges a temperature-dependent heating resistance element in an air flow path and measures the air flow rate from the output of a gauge circuit containing the heating resistance element. A calculation circuit in the flowmeter is provided for correcting the output characteristic by a polynomial expression higher than a quadratic expression. Thereby, high flowmeter measuring accuracy is achieved in lieu of laser trimming and with small-scale circuit composition.

Abstract: To enable compactness by lowering the connecting force of dog clutch so as to decrease the energy consumption and reduce the size of a system. A method of changing gears of automobile which moves the dog clutch in the axial direction at the time of gear change, while applying weak periodic torque vibration between the gear of the dog clutch and change gear of the gear shifter, and disconnects the two gears and, after the gear of the dog clutch and change gear of the gear shifter have been disconnected, also moves the dog clutch in the axial direction, while applying weak periodic rotating speed vibration between the gear of the dog clutch and another change gear of the gear shifter, and connects the two gears.

Abstract: An electrical power supply system for a vehicle is provided, which can eliminate proliferation of adverse effect on other control modules caused within one of a plurality of control modules. This is accomplished by provision of the power supply system comprising: battery 10 for supplying power; power line PL in a loop lay-out; a plurality of control modules BCM 100, VCM 110, FIM 120, DDM 130, RIM 140, CCM 150 and PDM 160 for a plurality of accessory systems, which are connected via said power line PL in loop lay-out, wherein a power control module (PCM) 20 for controlling the engine is connected to the power supply source via another power line 22 different from the power line PL.

Abstract: In order to provide a fuel injection method of an internal combustion engine having higher combustion stability which can direct a part of concentrated fuel spray toward an ignition plug according to a fuel injection atmosphere, a fuel injection valve thereof, and an internal combustion engine, the present invention provides a fuel injection method of an internal combustion engine for injecting fuel so as to generate a part of high spray concentration and a part of low spray concentration on the cross section of spray by giving swirling force to fuel from an injection hole at the front end of a fuel injection valve, comprising the step of setting a reference indicating the position of a axis of the fuel injection valve indicating the injection direction of the part of high spray concentration in the rotational direction when fuel is injected into an atmosphere under the atmospheric pressure.

Abstract: The object of the present invention is to propose an etch channel sealing structure characterized by excellent impermeability to moisture and resistance to temporal change of the diaphragm in the pressure sensor produced according to the sacrificial layer etching technique, and to provide a pressure sensor characterized by excellent productivity and durability. After a very small gap is formed by the sacrificial layer etching technique, silicon oxide film is deposited by the CVD technique or the like, thereby sealing the etch channel. Further, impermeable thin film of polysilicon or the like is formed to cover the oxide film. This allows an etch channel sealing structure to be simplified in the pressure sensor produced according to the sacrificial layer etching technique, and prevents entry of moisture into the cavity, thereby improving moisture resistance. Moreover, sealing material with small film stress reduces temporal deformation of the diaphragm.

Abstract: A flow rate sensor detects the flow rate in a pulsating condition including a large amount of the reverse flow. Upstream temperature sensors and downstream temperature sensors are formed in both sides of a heater, parallel resistors are formed in the external side of a thin film portion (cavity), and the downstream temperature sensors are connected at the contacts. The upstream and downstream temperature sensors are respectively allocated to the four sides of the bridge circuit so that the sensors of the same type are not side by side and the electrodes are balanced when the flow rate is zero. The upstream temperature sensor is cooled during the forward flow, while the downstream temperature sensor is influenced by the heater but virtual change is rather small and potential difference between the electrodes becomes larger. During the reverse flow, the downstream temperature sensor is cooled but virtual change is rather small.

Abstract: An antenna base, a control circuit section, and a high-frequency circuit section are enclosed in an inner space defined by a housing and a radome. Inside this inner space, the control circuit section and the high-frequency circuit section are surrounded by the antenna base and the housing. A circuit GND common to the control circuit section and the high-frequency circuit section is electrically connected to the antenna base and the housing, and it is connected to a body GND through only capacitive impedance.

Abstract: By sealing a diaphragm with less processes and lower cost and reducing deformation due to remaining stress, a stable and highly reliable pressure sensor construction is proposed. The pressure sensor is low in measurement error and small in floating capacitance and leakage current and good in characteristic. As a means to attain the above object, a polycrystalline silicon diaphragm is sealed with a silicon oxide film deposited through a LPCVD method and then completely covered. The diaphragm is placed on a surface of a semiconductor substrate with a nearly constant gap of 0.15 to 1.3 ?m, and has difference-in-grade constructions of a deformation reducing means due to remaining stress.

Abstract: When the position of a throttle valve approaches a target value, an integration calculation of position control is stopped. When a deviation from the target value increases, the integration calculation is restarted. If an integration value includes no frictional amount, a motor output in which a motor and a spring are matched is set synchronously with a change in target value.

Abstract: A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.

Abstract: To provide a filter cover which has little electromagnetic effect on a dielectric resonator and is able to lengthen the life of a press mold without impairing isolation between transmission and reception. A VCO comprising a dielectric resonator, a high-frequency oscillator, a base, a cover, in which the distance between the surface of the cover facing the dielectric resonator and the surface of the base facing the dielectric resonator is half or below of the effective wave length of the oscillator frequency, and the cover has periodic projections facing the dielectric resonator which are a quarter of effective wave length of the oscillator frequency, wherein the nearest distance between the surface of the dielectric resonator facing the cover and the surface of the cover facing the dielectric resonator is a quarter or over of the effective wave length of the oscillator frequency.

Abstract: One method of achieving the above subjects is by connecting one of electroconductive members 12, which are pre-connected to the top and bottom of a semiconductor chip 11 and have thermal conductivity, to an electroconductive member 13, which is used with the semiconductor chip 11 to constitute a laminated structure, in electrically insulated form on the same surface as the installation surface of the electroconductive member 13 so as to straddle the laminated structure constituted by the semiconductor chip 11 and the electroconductive member 13.