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JP2016024167A |
To provide a method of observing inside of an injector nozzle injection hole in a nondestructive manner.The method of observing inside of an injector nozzle injection hole includes the steps of, in the order mentioned: an impregnation st...
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JP2016008554A |
To provide an on-vehicle control unit capable of preventing incorrect diagnosis of a stuck failure of a fuel pressure sensor and realizing low computation load.The present invention concerns an on-vehicle control unit acquiring waveform ...
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JP2015232333A |
To solve the problem that diagnosis accuracy degrades for a failure diagnosis of an intake valve of a high-pressure fuel pump if a fuel pressure instantaneously falls below a target fuel pressure due to a pulsation width of the fuel pres...
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JP5817597B2 |
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JP5813531B2 |
The device has fuel injector (20) is set with an injecting aperture from which fuel is supplied from a fuel collection container. A fuel pressure sensor measures fuel pressure in fuel path extended from fuel collection container to injec...
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JP5808415B2 |
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JP2015529777A |
The present invention is installed in a measurement chamber (2) in which a fluid is injected, a device (3) in which the fluid is injected into the measurement chamber (2), and a measurement chamber (2). A device (1) for measuring the amo...
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JP5776704B2 |
A fuel pressure sensor (20) detects fuel pressure in fuel passage, and electronic control unit (ECU) (30) receives pressure waveform representing variation in fuel pressure based on detected fuel pressure, when fuel injector (10) injects...
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JP5742797B2 |
A fuel injection controller includes a transistor downstream of a coil of a fuel injector, two transistors applying a source voltage to an upstream of the coil, a diode refluxing an electric current to the coil from a ground, and a Zener...
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JP2015101963A |
To properly determine state of an injector of a cylinder direct injection type internal combustion engine.A device for controlling an internal combustion engine that controls the cylinder direct injection type internal combustion engine ...
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JP5704152B2 |
A fuel injection apparatus includes: a first obtaining unit that obtains a first index relating to an opening behavior of an injector; a second obtaining unit that obtains at least one of a second index relating to a maximum injection ra...
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JP2015075050A |
To provide an internal combustion engine control device capable of acquiring a temperature of a tip section of an injector and a heat quantity of a cylinder head without directly detecting the temperatures of a tip section of the injecto...
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JP5693588B2 |
A system for measuring an injection process in a combustion engine includes a tank configured to hold a fuel. A storage container is configured to hold a compressed fuel. At least one injection valve is arranged at the storage container....
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JP5672133B2 |
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JP5672138B2 |
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JP2015014247A |
To realize a method for easily evaluating deterioration of an injector.A value for instructing a fuel injection performed by a common rail type diesel engine injector is inputted to a deterioration degree evaluation device. Then, the det...
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JP2014227858A |
To provide a fuel injection control device capable of highly accurately extracting the fluctuation waveform of a fuel pressure caused by injection, from a fluctuation waveform detected by a fuel pressure sensor during injection.A fuel in...
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JP5635022B2 |
A fuel pressure waveform acquiring equipment comprises the following components: a pressure waveform acquiring device which is used for acquiring a first pressure waveform detected through a fuel pressure sensor as a multi-segment inject...
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JP5617517B2 |
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JP5617328B2 |
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JP5587364B2 |
A fuel injection system has a fuel injector and a fuel pressure sensor. An ECU acquires a pressure waveform detected by the fuel pressure sensor during performing a multi-stage injection as a detected waveform at the time of the multi-st...
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JP5575264B2 |
A system for measuring an injection process includes a measurement chamber filled with a fluid. An injection valve injects the fluid into the measurement chamber. A piston is arranged in the measurement chamber. A sensor generates a volt...
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JP5573889B2 |
The method involves interpolating an injection rate deviation by an injection rate deviation interpolation step (S8) in a selected interpolation point based on the injection rate deviation computed by an injection rate deviation computat...
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JP5556209B2 |
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JP5530786B2 |
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JP5510380B2 |
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JP5500110B2 |
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JP5497010B2 |
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JP2014077357A |
To measure a fuel injection amount of each fuel injection cylinder while specifying the fuel injection cylinder, with respect to a fuel injection amount measuring system for measuring a fuel injection amount from a fuel injection pump as...
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JP2014066161A |
To properly store information on an individual difference of injectors in a control device.An ECU 1 comprises a flash ROM 14 that is used for correcting an injection characteristic of an injector 51 injecting fuel to a cylinder of an eng...
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JP5471558B2 |
To create an injection rate waveform in a sensorless manner without using a pressure sensor for detecting injection start timing, injection completion timing, and an injection rate of fuel. A plurality of injection rate waveforms varied ...
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JP5472204B2 |
The detector (60) has an alternating-current (AC) supply-unit (62) for overlaying the AC to supplied direct-current (DC) such that an injector (11) provides overlaid current. An AC detection unit (63) detects the AC flowing through the i...
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JP5464185B2 |
The system has a microcomputer (33) and an electronic control unit (11) for controlling fuel pressure detectors (IJ1-IJ4) and a fuel pressure sensor (27) and transmitting a request for outputting a known voltage to the injectors by commu...
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JP5462745B2 |
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JP5456059B2 |
In a method for carrying out a number of injections for at least one cylinder of an internal combustion engine, a reference point in time for a control application onset of an injection is ascertained for the at least one cylinder, and a...
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JP5445601B2 |
The control apparatus has a storage unit (30a) which stores injection time delays with a fuel pressure (P) in an image. An interpolation error is obtained with respect to time delays. An actual time delay corresponding to current pressur...
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JP5431483B2 |
The method of the invention includes the injection of fuel in a first constant-volume measuring chamber (3) in which the pressure (P) and the temperature (T) are measured, and the partial draining of said first chamber into a second vari...
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JP5418259B2 |
To inhibit a reduction in the detection accuracy of a pressure in a measurement chamber, also to inhibit an abnormal pressure fluctuation in the measurement chamber, and to prevent the measurement accuracy of the injection quantity from ...
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JP5392277B2 |
A parameter calculating portion (31) calculates the injection rate parameter based on fuel pressure waveform. A learning section (32) learns and stores the injection rate parameters as learning values, with a fuel injection amount. An es...
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JP5391121B2 |
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JP5375848B2 |
To provide a fuel injection condition analyzing device to improve the arithmetic processing efficiency for the analysis of an injection condition.The fuel injection condition analyzing device is applied to a fuel injection system provide...
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JP5362039B2 |
In a method for determining a needle closing of a valve needle that is driven by a piezoactuator, a signal of a voltage present at the piezoactuator is measured and the needle closing is detected from a curve of the signal.
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JP2013241904A |
To achieve improvement in injection quantity adjustment accuracy and reduction in adjustment time in a method for adjusting the injection quantity of an injector.A method for adjusting the injection quantity of an injector is configured ...
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JP5358621B2 |
A method of controlling a fuel injection device (617) that can control a small amount of injection is provided. A fuel injection device (617) for use in an internal combustion engine, includes: a valve body (114) that can open and close ...
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JP5348154B2 |
A defective-portion detector has a detecting portion which detects a variation in fuel pressure as a fuel pressure waveform based on a detection value of a fuel pressure sensor and a computing portion which computes, based on the fuel pr...
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JP5343877B2 |
To provide an injection abnormality detection device which can narrow down the portion of abnormality from a fuel injection valve which has caused injection abnormalities and identify it. The fuel injection system lifts a needle and inje...
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JP5330932B2 |
To provide a method of measuring atomization, precisely measuring an injection direction of a fluid injected from an injection system. A control unit 10 acquires an atomization cross-section image 40 formed on planar light 20 when inject...
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JP5327197B2 |
The detector (20) has a variation acquisition unit acquiring variation in relative injection rate of a fuel injected by a fuel injector (14), based on variation in pressure of fuel hermetically stored in a pressure tank (21). A conversio...
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JP5327198B2 |
The device has an output characteristic adjuster e.g. offset digital to analog converter, adjusting amplification factor used by a fuel pressure sensor (S1) for converting fuel pressure into a sensor signal and an offset potential for th...
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JP2013217277A |
To easily calculate a fuel kinematic viscosity with a high reliability.An electronic control unit 4 calculates a modulus of volume elasticity K of fuel using a predetermined operational expression based on the magnitude of rail pressure ...
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