Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Hitachi Car Engineering Co., Ltd. Patents
Assignee:
Hitachi Car Engineering Co., Ltd.
Address:
Hitachinaka-shi, JP
No. of patents:
344
Patents:


1 2 3 4 5 6 7


Patent Number Title Of Patent Date Issued
RE40523 Non-contact rotational position sensor and throttle valve assembly including non-contact rotatio September 30, 2008
A non-contact sensor for sensing a rotational position of a rotating object is provided. A ring-shaped permanent magnet magnetized in the axial direction is sandwiched between two pairs of magnetic plates from above and below. Two pairs of upper and lower protruded magnetic substance
RE39738 Throttle sensor July 24, 2007
A throttle value spindle (3) is rotatably fixed to a throttle body (1). A recess is provided within the throttle body at one side of the throttle value spindle along the axial direction of the throttle valve spindle. A holder (6) is fixed to the throttle valve spindle within the recess a
RE39257 Air flow rate control apparatus September 5, 2006
A throttle control apparatus for an engine on a vehicle is provided, in which the number of component parts in the position detection means and the driven means is reduced to improve the accuracy in its position control and at the same time an integrated wiring is achieved and connec
RE38338 Car electronic control system and method for controlling the same December 2, 2003
A car remote control system utilizing a signal in the form of electromagnetic wave or infrared ray called `keyless entry`. When receiving a predetermined wake-up signal, an MPU is once operated even when the received input signal is a noise signal to perform only judging operation of
7469582 Heating resistor type flow measuring device housing structure having projection and recess for p December 30, 2008
A heating resistor type flow measuring device comprising a housing having a support part provided between a frame body and a connector and connected to the mounting part of a fluid passage, a flow rate detection element held on the frame body side of the housing, and an electronic ci
7467546 Equipment for measuring gas flow rate December 23, 2008
In a flow sensor, detecting elements are provided at a sub-passage. A sub-passage wall contains a hole to drain accumulated liquid. A protrusion arranged close to the hole on an external surface generates dynamic pressure on the opening in response to external flow. Alternatively, a
7458360 Motor driving type throttle apparatus December 2, 2008
An throttle valve is controlled by using an electric actuator. A cover for covering one end side of the throttle valve shaft is attached to a side wall of a throttle body. a throttle position sensor unit and an electronic control module for controlling the throttle valve is attached
7457711 Flowmeter and flowmeter system November 25, 2008
In a thermal-type airflow meter that measures an intake airflow rate in an internal combustion engine of an automobile or the like, there has been a problem that pulsation errors caused by external fluctuations under the environment including a large pulsation and reverse flow in the int
7446448 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet elec November 4, 2008
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
7427860 Module to control a rotating output shaft and a module to change a driving condition of vehicle September 23, 2008
A sensor and a control circuit are provided externally of a gear cover. A shift controller is operated by an electric actuator and a motor driven control module similar thereto. A rotating position detection sensor is thereby provided for a switching device without combination of a circu
7426154 Sensor adjusting circuit September 16, 2008
A sensor adjusting circuit for adjusting a digital sensor, whose circuit scale is small and which can maintain high accuracy in a wide adjustment range is provided. A sensor adjusting circuit for adjusting an analog input signal inputted from a sensor and outputting it as another analog
7417349 Driving apparatus August 26, 2008
A rotating electric machine comprises a stator having stator salient poles, three-phases windings wound around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles
7414307 Electronic device and pressure sensor August 19, 2008
An electronic device requires an electronic component to be mounted for the purpose of static shielding. The mounting of such an electronic component raises a problem of avoiding thermal stresses and cracks generated due to the difference between the coefficients of linear expansion
7395888 Vehicle drive device July 8, 2008
A vehicle drive device comprises an actuator located between an electric motor and axles for driving the vehicle, a built-in power source for supplying electric power to the actuator, and a control means for controlling the drive of the actuator. The built-in power source can be cons
7395707 Thermal type flow rate measuring apparatus July 8, 2008
A flow rate sensor has a problem that a resistance value of a heat generating resistor itself varies and sensor characteristics are changed during use of the sensor for a long term. Also, the temperature of the heat generating resistor must be adjusted on a circuit substrate with a r
7387043 Method of changing gears of an automobile, automotive gear shifter, controller for automotive ge June 17, 2008
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 period
7383815 Air flow measuring device formed integrally with electronically controlled throttle body June 10, 2008
An air flow sensor for an internal combustion engine is disclosed. An air flow rate measurement meter, a pressure gauge, electronically controlled throttle body, and the microcomputer, etc. are integrated as one body, and the correction of the air flow rate, the control, and the fault
7378773 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet elec May 27, 2008
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
7377161 Air flow measuring device provided with a vent in air passage May 27, 2008
The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measuring element locat
7376040 Backup circuit for holding information in a storage circuit when power cut-off occurs May 20, 2008
A backup circuit that can be fabricated by the standard CMOS process and has a small circuit scale. The backup circuit (10) is disposed between a digital circuit (20) including a storage circuit and a power supply terminal (T.sub.IN, T.sub.GND) for supplying power to the digital circ
7375510 Rotational position sensor and electronically controlled throttle device and internal combustion May 20, 2008
A rotational position sensor having a compact and simple structure, in which a magnetic surface can be formed to have a more accurate shape, and an electronically controlled throttle device for an internal combustion engine, which employs the rotational position sensor. The rotational
7373815 Thermal type flow measuring instrument with mold casing in metal insert May 20, 2008
A thermal type air flow measuring instrument has a molded part formed by integral molding with a metal plate. A slot or opening allowing only a resin to pass through the same is formed in the metal plate in an area subjected to higher stresses. A part of the connector terminals are d
7370518 Heating resistor type fluid flow rate measuring apparatus and control apparatus for internal com May 13, 2008
To realize a control apparatus for an internal combustion engine having a heating resistor type air flow rate measuring apparatus which can effectively remove salinity adhered to the heating resistor. Salt adheres not only to the heating portion of a heating resistor but also to lead
7367315 Throttle valve control apparatus of internal combustion engine and automobile using the same May 6, 2008
The invention provides a throttle valve control apparatus provided with a throttle sensor which is in trouble at a low possibility and has a long service life, whereby an accurate output of a throttle opening degree can be obtained. The throttle valve control apparatus of an internal
7347116 Automobile, and control unit and driving power train system for the same March 25, 2008
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
7331897 Active shift transmission, transmission control unit and automobile February 19, 2008
The object of the invention is to provide a less expensive active transmission control system for an automobile, capable of disconnecting an engine, without increasing the number of dog clutches.In an active shift transmission, a second intermediate shaft is provided between a transm
7316385 Throttle body January 8, 2008
A lightweight, low cost throttle body and throttle valve placed in the body, both formed of resins, that resolve the problem of excessively large gap formation is disclosed. Circumferentially oriented filler contained in a resin forming a throttle valve compensates to make the radial
7315104 Iron core and method of manufacturing the same and apparatus for manufacturing the same January 1, 2008
An apparatus for manufacturing an iron core comprising: a plate thickness measurement unit for measuring a thickness of the strip as an intermediate product of the iron core; an inlet guide for positioning the strip in a widthwise direction thereof; a mil roll unit for performing a r
7303406 Device for controlling a vehicle December 4, 2007
A device for controlling a vehicle 8 has a housing, a rectangular printed circuit board inside of the housing and a control circuit thereon. Plugs are provided along one side of the rectangular printed circuit board to transfer signals between the inside and the outside of the housing. T
7290528 Exhaust gas recirculation device for internal combustion engine November 6, 2007
An object of the present invention is to provide an exhaust gas recirculation device with an improved response speed and accuracy of exhaust gas recirculation flow control in an internal combustion engine. A recirculation gas control valve controls a recirculation flow rate in exhaus
7284535 Motor driving type throttle apparatus October 23, 2007
An throttle valve is controlled by using an electric actuator. A cover for covering one end side of the throttle valve shaft is attached to a side wall of a throttle body. A throttle position sensor unit and an electronic control module for controlling the throttle valve is attached
7284424 Thermal air flow rate measuring apparatus and its flowmeter and internal combustion engine and t October 23, 2007
A thermal air flow rate measuring apparatus of great precision wherein sensitivity is enhanced by sensors having different output characteristics and an operating device employing a digitized signal. The sensitivity and temperature can be corrected easily depending on the flow direct
7282810 Power supplying apparatus for vehicle and intensive wiring apparatus October 16, 2007
An electric power supply system for a vehicle has an electric power line wired in a loop configuration. From the electric power line power is supplied to a load, and to another system which supplies control system power supply. One shutdown circuit is provided in a module connected to
7281423 Characteristics adjusting apparatus of physical quantity sensing device and a thermal type air f October 16, 2007
The output characteristics of the sensing device or the control quantity of the sensing element can be adjusted by extracting an adjusting terminal in addition to a power source terminal, a ground terminal, an output terminal and the like outside a housing containing and protecting a
7279855 Electric drive device for vehicle and hybrid engine/motor-type four wheel drive device October 9, 2007
A vehicle electric drive system and a hybrid engine-motor type vehicle drive system realizing simplification and miniaturization of electric parts and, moreover, reduction in cost while maintaining performances can be provided. A part 1 of wheels is driven by an engine. The wheels are
7270000 Fluid flow sensor and fluid flow measurement device September 18, 2007
A Thermal type fluid flow sensor comprises a heating resistor formed on a thin film of a substrate, and plural thermal sensitive resistors configuring a bridge circuit. The thermal sensitive resistors are disposed on the thin film of the substrate so as to be located on an adjacent u
7269999 Thermal airflow meter September 18, 2007
A thermal airflow meter excellent in flow-rate measurement accuracy is provided. The airflow meter has a flow-rate measuring element comprising a heat resistor and a temperature-compensating resistor which are formed on the a first base member. A second base member of the airflow meter,
7267100 Controller of internal combustion engine September 11, 2007
An internal combustion engine controller, is used with a fuel-based torque-on-demand control type, multi-cylinder, direct-injection internal combustion engine, to provide an air flow rate control that excels in response and convergence. The internal combustion engine controller inclu
7260992 Pressure sensor, flowmeter electronic component, and method for manufacturing the same August 28, 2007
An outer case connector portion, a gauge housing case, and the like for use with a pressure sensor, for example, are generally made of a thermoplastic or thermosetting resin. However, the resin physically causes curing shrinkage. Especially when a metal is insert molded with a resin,
7260657 Serial data transferring apparatus August 21, 2007
A master unit sends a start signal to a slave unit. When receiving the start signal from the master unit, the slave unit sends, to the master unit, a synchronization field that is a data train (pulse signal) indicative of a transfer clock with which the slave unit is able to perform
7255837 Electronic device and thermal type flow meter on vehicle August 14, 2007
An airtight configuration for keeping down the permeation of corrosive gas from silicone adhesive, and for preventing corrosive gas from entering the case.An electronic device mounted on vehicle. The electronic device has at least one of a portion connecting components, and a portion
7247004 Electronically controlled actuator July 24, 2007
An electronically controlled actuator for controlling a turbocharger has a motor, a speed change mechanism and a position sensor contained in a case consisting of a body and a cover. The driving force of the motor is transmitted through the speed change mechanism to an output shaft to
7240661 Fuel injection device for internal combustion engine July 10, 2007
The present invention provides a fuel injection device comprising an intake pipe having interior wall surfaces for providing air from an upstream side to a downstream side and a fuel injection port disposed in the intake pipe between the surfaces for providing fuel into the intake pi
7231903 Throttle apparatus for an internal combustion engine June 19, 2007
A returning spring of the electronic control throttle and a default spring for securing an initial opening degree (default opening degree) of the throttle valve have diameters different from each other, and both of the springs are held around a shaft of the throttle valve shaft and arran
7228614 Method of manufacturing a gas flow meter June 12, 2007
A gas flowmeter capable of reducing a secular change comprises a silicon semiconductor substrate formed with a cavity and a heat element formed above the cavity of the semiconductor substrate by way of an insulating film. The heat element is a silicon (Si) semiconductor thin film imp
7226379 Active shift transmission, transmission control unit and automobile June 5, 2007
The object of the invention is to provide a less expensive active transmission control system for an automobile, capable of disconnecting an engine, without increasing the number of dog clutches.In an active shift transmission, a second intermediate shaft is provided between a transm
7225669 Heating resistance flow rate measuring apparatus June 5, 2007
A heating resistance flow rate measuring apparatus which can use a power source of an ECU in an automobile without requiring an expensive protective circuit and regulator. Heating of temperature detecting resistors themselves causes temperature changes on the windward and leeward sid
7216535 Air flow measuring device and engine having the air flow measuring device May 15, 2007
The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a predefined curvature with a maximum downstream point and a flow measuring element locat
7215115 Module to control a rotating output shaft and module to change a driving condition of vehicle May 8, 2007
A sensor and a control circuit are provided externally of a gear cover. This enhances reliability of a shift controller operated by an electric actuator and a motor driven control module similar thereto, and constitute them compact. Further, this provides a rotating position detectio
7215055 Vehicle May 8, 2007
A rotating electric machine comprises a stator having stator salient poles, three-phase windings wound around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles.
1 2 3 4 5 6 7

 
 
  Recently Added Patents
Method of producing near-infrared absorbing dye compound
Light
Mini-channel heat exchanger with reduced dimension header
Automated system and method for determining drug testing
Colorant for thermoplastic resin and uses thereof
Card embossing system
Rear bumper for an automobile
  Randomly Featured Patents
Crosslinkable waterborne dispersions of hydroxy functional polydiene polymers and amino resins
Liquid level sensor
Drive belt with connector
Correlated set of golf club irons
Speed control device for an elevator
Transfer adhesive sheet material
Data event logging in computing platform
Pyrophoric flare
Reliability system for networked exercise equipment
Pneumatic radial tire