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公开(公告)号：US07624717B2
公开(公告)日：2009-12-01
申请号：US12167759
申请日：2008-07-03
申请人： Takahiko Inada , Kimihiko Tanaya , Koichi Okamura
发明人： Takahiko Inada , Kimihiko Tanaya , Koichi Okamura
CPC分类号： F02P5/1455 , F02P5/1502 , F02P15/08 , F02P17/12 , F02P2017/125 , Y02T10/46
摘要： An internal-combustion-engine combustion condition detection apparatus that can accurately comprehend a combustion condition is obtained. The internal-combustion-engine combustion condition detection apparatus includes an ion-current detection device (41) that detects an ion current generated during combustion and ignition devices including a first ignition device (21) having a first ignition plug (11) that causes main combustion in a combustion chamber (33) and a second ignition device (22) having a second ignition plug (12) disposed in the same combustion chamber (33) as and spaced apart from the first ignition plug (11) of the first ignition device (21); the ion-current detection device (41) detects a combustion ion current that is generated in the second ignition device (22) regardless of whether or not ignition is performed by the second ignition device (22), thereby detecting pre-ignition or a precursor phenomenon of pre-ignition.
摘要翻译： 获得可以准确地理解燃烧条件的内燃机燃烧条件检测装置。 内燃机燃烧条件检测装置包括：检测燃烧时产生的离子电流的离子电流检测装置（41），以及包括具有第一点火装置（21）的第一点火装置（21）的点火装置， 在燃烧室（33）和第二点火装置（22）中的燃烧，所述第二点火装置（22）具有设置在与第一点火装置的第一火花塞（11）相同的燃料室（33）中的间隔开的第二火花塞 （21）; 离子电流检测装置（41）检测在第二点火装置（22）中产生的燃烧离子电流，而不管第二点火装置（22）是否进行点火，从而检测预点火或前体 预燃现象。
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12.发明申请公开(公告)号：US20080135017A1
公开(公告)日：2008-06-12
申请号：US11798065
申请日：2007-05-10
申请人： Yusuke Naruse , Koichi Okamura , Futoshi Aida
发明人： Yusuke Naruse , Koichi Okamura , Futoshi Aida
IPC分类号： F02P5/145
CPC分类号： F02P3/0435 , F02D35/021 , F02D41/221 , F02P2017/125 , G01L23/225
摘要： An ignition device, including: an ignition coil (1) having a primary coil and a secondary coil; a switching element (5) for causing a primary current to be conducted through and shut off from the primary coil of the ignition coil; a waveform shaping circuit (6) for shaping a waveform of an ignition signal transmitted from an outside through a signal line to supply a conduction signal thus obtained to the switching element; ion current detecting means (8, 9) connected to the secondary coil of the ignition coil, for detecting an ion current flowing through the secondary coil; and ion signal generating means (10, 11, 12) for outputting an ion signal, which indicates the ion current detected for a predetermined period after the conduction signal of the waveform shaping circuit has been turned off, to the outside through the signal line while invalidating the conduction signal from the waveform shaping circuit.
摘要翻译： 一种点火装置，包括：具有初级线圈和次级线圈的点火线圈（1）; 开关元件（5），用于使一次电流通过和切断所述点火线圈的初级线圈; 波形整形电路（6），用于对通过信号线从外部发送的点火信号的波形进行整形，以将由此获得的导通信号提供给开关元件; 连接到点火线圈的次级线圈的离子电流检测装置（8,9），用于检测流过次级线圈的离子电流; 以及离子信号发生装置（10,11,12），用于输出离子信号，该离子信号表示在波形整形电路的导通信号已被截止之后的预定时间段内检测到的离子电流通过信号线向外部，而 使来自波形整形电路的导通信号无效。
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13.发明授权公开(公告)号：US06865929B2
公开(公告)日：2005-03-15
申请号：US10261502
申请日：2002-10-02
CPC分类号： G01L23/22 , F02P17/12 , F02P2017/125
摘要： Ion current detection signal output section for outputting an ion current detection signal including a failure determination signal of an ignition operation is provided, and a failure determination as well as a combustion state can be performed based on this ion current detection signal.
摘要翻译： 提供了用于输出包括点火操作的故障判定信号的离子电流检测信号的离子电流检测信号输出部，并且可以基于该离子电流检测信号进行故障判定以及燃烧状态。
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公开(公告)号：US06378494B1
公开(公告)日：2002-04-30
申请号：US09628421
申请日：2000-07-28
IPC分类号： F02P5152
CPC分类号： F02P5/152 , F02P17/12 , F02P2017/128 , G01L23/221 , G01L23/225 , Y02T10/46
摘要： To obtain a knock detection apparatus which may obtain a good knock pulse S/N even if an ionic current generation amount is changed by the change of a kind of fuel or plugs, a knock detection apparatus for detecting a knock generated, in an internal combustion engine, in which a vibratory component superimposed on an ionic current generated by combustion of fuel is extracted, the component that is equal to or more than a knock detection threshold value is shaped in waveform into a pulse waveform, a knock strength is calculated through counting and calculation process of the number of pulses of the pulse waveform by an engine controlling unit, an ignition timing is controlled on the basis of the knock strength, comprises a knock detection threshold value adjusting unit for changing the knock detection threshold value on the basis of information of an ionic current.
摘要翻译： 为了获得能够通过燃料或塞的种类的变化来改变离子电流产生量而获得良好的爆震脉冲S / N的爆震检测装置，用于检测在内燃中产生的爆震的爆震检测装置 其中提取了叠加在由燃料燃烧产生的离子电流上的振动分量，将等于或大于爆震检测阈值的分量波形整形为脉冲波形，通过计数计算爆震强度 以及由发动机控制单元对脉搏波形的脉冲数的计算处理，基于爆震强度来控制点火正时，包括用于根据爆震检测阈值调整单元改变爆震检测阈值的爆震检测阈值调整单元 离子电流信息。
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公开(公告)号：US06550456B1
公开(公告)日：2003-04-22
申请号：US10261579
申请日：2002-10-02
IPC分类号： F02M5100
CPC分类号： G01M15/11 , F02D35/021 , F02D35/027 , F02D2200/1015 , F02P9/007 , F02P17/12 , F02P2017/128 , G01L23/225
摘要： A combustion state detection apparatus for an internal combustion engine has a detection period limit section, which limits a detection period of an ion current processed in misfire detection section or knock detection section.
摘要翻译： 用于内燃机的燃烧状态检测装置具有检测期间限制部，其限制在失火检测部或爆震检测部中处理的离子电流的检测期间。
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公开(公告)号：US06427662B2
公开(公告)日：2002-08-06
申请号：US09726519
申请日：2000-12-01
IPC分类号： F02P5152
CPC分类号： F02P5/1523 , G01L23/221 , G01L23/225 , Y02T10/46
摘要： A knock control apparatus for an internal combustion engine includes a knock detector for extracting a vibration component superposed on an ion current, and waveform shaping it at a predetermined threshold value to generate a train of knock pulses (Kp) of which the number of pulses indicates a knock intensity of a knock generated in the internal combustion engine, and an engine control unit for counting the number of knock pulses (npn) in the knock pulse train (Kp) output from the knock detector. The engine control unit judges, based on the number of knock pulses (npn), whether or not a knock is occurring. The engine control unit performs a peak hold of the number of knock pulses to calculate the knock judgement threshold value (BGL) by multiplying the number of pulses by (&agr;). Thus, precision in knock judgement is improved by performing knock judgement based on a maximum value (MAX) of the number of knock pulses (npn).
摘要翻译： 用于内燃机的爆震控制装置包括用于提取叠加在离子电流上的振动分量的爆震检测器，以及以预定阈值对其进行波形整形以产生脉冲数指示的一系列爆震脉冲（Kp） 在内燃机中产生的撞击的爆震强度，以及用于计算从爆震检测器输出的爆震脉冲串（Kp）中的爆震脉冲数（npn）的发动机控制单元。 发动机控制单元基于爆震脉冲数（npn）判断是否发生爆震。 引擎控制单元通过将脉冲数乘以（α）来执行敲击脉冲数的峰值保持以计算爆震判定阈值（BGL）。 因此，通过基于爆震脉冲数（npn）的最大值（MAX）进行爆震判断来提高爆震判断的精度。
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公开(公告)号：US4965445A
公开(公告)日：1990-10-23
申请号：US372591
申请日：1989-06-28
申请人： Masayuki Ikeuchi , Koichi Okamura
发明人： Masayuki Ikeuchi , Koichi Okamura
CPC分类号： G01D5/3473 , G01D5/34715
摘要： A rotation angle detector comprises a case housing a rotary shaft, a detection unit including a detection element and a processing circuit, and plural projections provided on an outside circumferential surface of the detection unit so as to put in contact with an inside circumferential surface of the case.
摘要翻译： 旋转角度检测器包括容纳旋转轴的壳体，包括检测元件和处理电路的检测单元，以及设置在检测单元的外周面上的多个突起，以便与所述检测元件的内周面接触 案件。
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公开(公告)号：US20070137628A1
公开(公告)日：2007-06-21
申请号：US11408051
申请日：2006-04-21
申请人： Yusuke Naruse , Koichi Okamura
发明人： Yusuke Naruse , Koichi Okamura
IPC分类号： F02P3/05
CPC分类号： F02P17/12 , F02P2017/125
摘要： The ignition apparatus includes an electronic control unit and an igniter. The igniter detects ions resulting from ignition, and sends an ion current output signal to the electronic control unit. The igniter has a waveform shaping circuit and an ion current detecting/outputting circuit. The waveform shaping circuit is adapted such that a voltage at an input terminal thereof becomes higher than a predetermined reference voltage to turn the switching element ON when the ignition signal is caused to flow through an electric load. The ion current detecting/outputting circuit has an output terminal which is connected to the input terminal and outputs therefrom an ion current output signal obtained as a result of conversion of an ion current, and is adjusted such that the voltage at the input terminal at the time when the ion current output signal is outputted to the electronic control unit becomes lower than the reference voltage.
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公开(公告)号：US06715700B2
公开(公告)日：2004-04-06
申请号：US10118077
申请日：2002-04-09
申请人： Koichi Okamura , Keita Nakano
发明人： Koichi Okamura , Keita Nakano
IPC分类号： F16K3102
CPC分类号： F16K31/0658 , B60T8/363 , B60T13/365 , B60T13/683 , B60T15/021 , B60T17/228 , F16K25/00 , F16K31/0665
摘要： A poppet type solenoid valve used in an electronically controllable vehicle hydraulic brake system is proposed which suppresses sound and vibration and simultaneously eliminates malfunction. For these effects, the following conditions have to be satisfied: FSP/(r2−B2) 29 (2) wherein FSP is the force of the spring, r is the tip diameter of the poppet, St is the stroke of the poppet, and B is the diameter of the area of the poppet where the valve-opening force by hydraulic pressure does not work on the poppet under the Bernoulli effect.
摘要翻译： 提出一种用于电子控制车辆液压制动系统的提升型电磁阀，其抑制声音和振动，同时消除故障。为了这些效果，必须满足以下条件：其中FSP是弹簧的力，r是 提升阀的顶端直径St是提升阀的行程，B是由于在伯努利效应下在液压作用下的阀门开启力不起作用的提升阀面积的直径。
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公开(公告)号：US5165380A
公开(公告)日：1992-11-24
申请号：US796796
申请日：1991-11-25
申请人： Koichi Okamura
发明人： Koichi Okamura
摘要： A distributor for an automotive engine with a built-in crank angle sensor includes a crank angle sensor unit 7A wherein the photodiode 12 opposing the light emitting diode 11 across the rotation disk 6 and the waveform shaper circuit for shaping the output of the photodiode 12 into a rectangular waveform are built into a single-chip photoreceptive integrated circuit 10. The photoreceptive integrated circuit 10A may include constant current source circuit consisting of a voltage divider 31a and 31b, a operational amplifier 32, a transistor 33, and current detector resistor 34, such that the current level through the light emitting diode 11 is kept constant.
摘要翻译： 具有内置曲轴转角传感器的汽车发动机的分配器包括曲轴转角传感器单元7A，其中与旋转盘6相对的发光二极管11的光电二极管12和用于将光电二极管12的输出成形为波形整形器电路 矩形波形内置在单片感光集成电路10中。感光集成电路10A可以包括由分压器31a和31b，运算放大器32，晶体管33和电流检测器电阻器34组成的恒流源电路， 使得通过发光二极管11的电流水平保持恒定。
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