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Matches 651 - 700 out of 3,208

Document Document Title
JPWO2012147186A1
本発明は、低圧燃料ポンプと高圧燃料ポンプ を備えた内燃機関の燃料噴射制御システムに おいて、高圧燃料ポンプを含む燃料噴射系の 故障を精度良く検出することを課題とす...  
JPWO2012147186A
In a fuel injection control system of an internal-combustion engine provided with a low-pressure fuel pump and a high-pressure fuel pump, the present invention makes it a subject to detect failure of a fuel injection system containing a ...  
JP5556209B2  
JP5530786B2  
JP2014105650A
To properly determine presence or absence of corrosion of an injection hole caused by condensate water in an injector.A fuel injection device includes first acquiring means for acquiring a first index relating to a valve opening behavior...  
JP5510380B2  
JP2014098355A
To reduce a measuring error caused by unevenness of fuel temperature inside a closed container.An injection measuring device: calculates a volume elasticity modulus of fuel from pressure and temperature inside a closed container 1 filled...  
JP2014098341A
To provide a fuel injection characteristic learning device for an internal combustion engine in which a learning about an operation characteristic of a fuel injection valve can be performed precisely on the basis of a fuel pressure withi...  
JP2014095325A
To provide an injection delay detection device capable of detecting an injection delay time in an easy method.An injection delay detection device includes: generation means for generating a comparison voltage which rises linearly with an...  
JP2014095312A
To restrict measurement error caused by non-uniformity in temperature of fuel within a closed container.A volume modulus of fuel is calculated in reference to a pressure and a temperature in a closed container 1 filled with fuel, a press...  
JP5500110B2  
JP5497010B2  
JP2014080899A
To reduce influence of cavitation generated in injecting a fuel.A volume modulus of a fuel is calculated on the basis of a pressure and a temperature in a sealed container 1 in which a fuel is charged, pressure change in the sealed conta...  
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...  
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...  
JP5471558B2  
JP5472204B2  
JP5464185B2  
JP5462745B2  
JP5456059B2  
JP5445601B2  
JP5431483B2  
JP5418259B2  
JP2014020317A
To enable a device to be simplified and downsized by eliminating a dedicated pump and piston for adjusting a pressure in a measurement chamber to a set pressure.When an inner pressure of a measurement chamber 11 is less than an inner pre...  
JP2014020287A
To improve detection accuracy of characteristics of an injector.A fuel injection control device 11 comprises a transistor (hereinafter, T0) on the downstream side of a coil 17 of an injector 15, comprises two transistors (hereinafter, T1...  
JP5392277B2  
JP2014005769A
To provide an abnormality diagnostic device capable of determining a defective property of fuel without using a property sensor.An abnormality diagnostic device comprises: static leak quantity estimation means S12 for estimating static l...  
JP5391121B2  
JP2013256894A
To provide a fuel pressure waveform acquisition device for extracting with high accuracy a pressure waveform caused by a target injection which is one of injections of a second stage or later of multistage injections, from waveforms dete...  
JP2013545919A
A piston fuel injector detecting device, comprising a base (1), a perspective platform (2), an observation cover (3), a sliding groove (4), an adjusting handle (5), a conducting wire column (6), a supporting plate (7), a tact switch (8),...  
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 provid...  
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.  
JP2013241897A
To provide a characteristics obtaining method for a fuel injection valve for obtaining injecting characteristics with a higher degree of accuracy.A standard injection rate wave shape Ram is set at a reference point with different injecti...  
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 ...  
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 ...  
JP2013238115A
To provide an electromagnetic driving valve control device capable of determining an open failure and a short failure of a regenerative diode provided in a driving circuit of an electromagnetic driving valve with a relatively simple stru...  
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...  
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...  
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...  
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...  
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...  
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 ...  
JP5321606B2
To highly accurately control an injection state by using an injection ratio parameter corresponding to the current environmental condition, while preventing an increase in learning processing load of the injection ratio parameter. This f...  
JP5316447B2
To provide a method for manufacturing an injector in which a step of measuring the flow rate of a fuel injection valve (injector) is separated from an assembling step. The flow rate characteristic (fuel flow rate) of the injector at the ...  
JP5316196B2
The device has a fuel pipe (4) for supplying fuel in a storage part (1) into an injection valve (2). The injection valve injects the fuel supplied from the storage part into an internal combustion engine that is designed as a multi-cylin...  
JP5313846B2
To provide an abnormality diagnostic device of a pressure sensor and an accumulator fuel injection device, surely detecting abnormality of the pressure sensor equipped on a common rail without involving addition of parts even during oper...  
JP2013199838A
To enable generation of an injection rate waveform without a sensor even if an injection area of a fuel injection valve is changed.A plurality of injection rate waveforms are measured while a fuel pressure and an injection amount are cha...  
JP5301564B2
A method and an apparatus for testing the piston (2) of an injection pump of a pressure medium, the piston comprising a longitudinal groove (2b) that begins from its frontal face (2a) and extends on its side, and a screw-shaped guide edg...  
JP2013185478A
To provide an injection failure determination device for an internal combustion engine which can determine the presence/absence of an injection failure due to expansion of an injection hole, in a form including at least possibility of an...  
JP5293765B2
A first curve obtaining unit receives a fuel injection pressure curve and a fuel non-injection pressure curve related to the fuel injection states of a fuel injector (10-1). A transmission time calculation unit calculates the transmissio...  

Matches 651 - 700 out of 3,208