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1.发明授权公开(公告)号：US06336355B1
公开(公告)日：2002-01-08
申请号：US09496277
申请日：2000-02-01
申请人： Shu Sasaki , Koichi Okamura , Yasuyoshi Hatazawa , Mitsuru Koiwa , Hisanori Nobe
发明人： Shu Sasaki , Koichi Okamura , Yasuyoshi Hatazawa , Mitsuru Koiwa , Hisanori Nobe
IPC分类号： G01M1500
CPC分类号： G01L23/225 , F02B77/08 , F02D35/021 , F02D41/009 , F02P17/12 , F02P2017/128 , G01L23/221
摘要： To provide a combustion condition detecting apparatus for an internal combustion engine, which may well detect the combustion conditions such as discrimination of a combustion cylinder and knock generating condition and may reduce a circuit scale therefor, there are provided an ignition coil 21 provided for each cylinder; an ignition plug 20 for discharging by the application of the ignition high tension voltage to ignite mixture within the cylinder; a bias circuit 1 provided for each cylinder for applying a bias voltage to the ignition plug 20; an ionic current detection circuit 2 provided for each cylinder for detecting as an ionic current detection signal an ionic current 6 generated in the cylinder that is immediately after the combustion of the mixture; a knock signal processing circuit 4 provided one for a combination of a plurality of cylinders that are every two or more cylinders in ignition order on the basis of a sum of the ionic current detection signals; and an ECU 5 for detecting the combustion condition of the ignition plug on the basis of the knock signal.
摘要翻译： 为了提供一种用于内燃机的燃烧条件检测装置，其可以很好地检测诸如识别燃烧气缸和爆震发生状况的燃烧条件，并且可以减小其电路规模，设置有用于每个气缸的点火线圈21 ; 火花塞20，用于通过施加点火高压电压进行放电以点燃气缸内的混合物; 为每个气缸设置的偏置电路1，用于向火花塞20施加偏置电压; 为每个气缸设置的离子电流检测电路2，用于检测作为离子电流检测信号的离子电流6，其在混合物燃烧之后立即在汽缸中产生; 爆震信号处理电路4，其基于离子电流检测信号的总和，以点火顺序设置每个两个或更多个气缸的多个气缸的组合; 以及用于基于爆震信号检测火花塞的燃烧状态的ECU5。
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公开(公告)号：US06334353B1
公开(公告)日：2002-01-01
申请号：US09482514
申请日：2000-01-14
IPC分类号： G01M1500
CPC分类号： G01L23/225
摘要： To obtain a knock detection apparatus for an internal combustion engine 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 vibratory component superimposed on an ionic current generated by combustion of fuel is extracted and shaped in waveform into a pulse waveform by comparison with a threshold value, the number of the pulses in the pulse waveform is calculated by a calculation unit, and a control of an ignition timing is performed on the basis of an output result of the calculation unit. The knock detection apparatus for an internal combustion engine comprises an integration circuit for integrating (charging) the vibratory component superimposed on the ionic current and a discharge circuit for discharging a predetermined amount of charge from the integrated charge. The threshold value is self-adjusted by a balance of charge/discharge between the integration circuit and the discharge circuit.
摘要翻译： 为了获得即使离子电流产生量通过燃料或塞子的种类的变化而改变也可获得良好的爆震脉冲S / N的内燃机爆震检测装置，产生叠加在离子电流上的振动成分 通过与阈值进行比较，将燃料燃烧提取并形成波形成脉搏波形，通过计算单元计算脉搏波形中的脉冲数，并基于以下方式进行点火正时的控制 计算单元的输出结果。 用于内燃机的爆震检测装置包括用于对叠加在离子电流上的振动分量进行积分（充电）的积分电路和用于从集成电荷中排出预定量的电荷的放电电路。 通过积分电路和放电电路之间的充电/放电的平衡来自动调整阈值。
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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：US06418785B1
公开(公告)日：2002-07-16
申请号：US09531326
申请日：2000-03-20
IPC分类号： G01M1500
CPC分类号： F02P17/12 , F02D35/021 , F02D2200/1015 , F02P2017/125 , G01M15/11
摘要： A misfire detecting apparatus for an internal combustion engine detects only an ion current due to combustion of an air/fuel mixture regardless of a leakage current when combustion: takes place normally. The apparatus includes circuitry for detecting an ion current generated within the engine cylinder immediately after combustion, circuitry 21, 24, 26 for detecting a leakage current occurring between electrodes of a spark plug 14, a first waveform shaper 18 for shaping the ion current into a pulse signal indicating a combustion or misfire event by comparing the pulse signal with a first threshold value for deciding the ion current, the first threshold value being set on the basis of a level of the ion current upon rising thereof, the ion current being superposed on the leakage current, a second waveform shaper 20 for shaping the ion current as detected into a pulse signal through comparison with a second fixed threshold value which is fixed at a value smaller than the first threshold value, and a selector 22 for selectively outputting as the combustion pulse signal either a shaped pulse signal outputted from the first waveform shaper 18 upon detection of occurrence of the leakage current or a shaped pulse signal outputted from the second waveform shaper 20 when no leakage current is detected.
摘要翻译： 用于内燃机的失火检测装置仅在燃烧时正常地检测由空气/燃料混合物的燃烧引起的离子电流，而不管泄漏电流如何。 该装置包括用于检测在燃烧之后立即在发动机气缸内产生的离子电流的电路，用于检测在火花塞14的电极之间产生的漏电流的电路21,24,26，用于将离子电流整形成第一波形整形器18 通过将脉冲信号与用于决定离子电流的第一阈值进行比较来指示燃烧或失火事件的脉冲信号，基于上升时离子电流的电平设定第一阈值，离子电流叠加在 泄漏电流，第二波形整形器20，用于通过与固定在小于第一阈值的值的第二固定阈值进行比较，将检测到的离子电流整形为脉冲信号;以及选择器22，用于选择性地输出为 燃烧脉冲信号是在检测出渗漏曲线时从第一波形整形器18输出的成形脉冲信号 nt或从第二波形整形器20输出的成形脉冲信号，当没有检测到泄漏电流时。
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公开(公告)号：US06275041B1
公开(公告)日：2001-08-14
申请号：US09500477
申请日：2000-02-09
申请人： Koichi Okamura , Yasuyoshi Hatazawa , Shu Sasaki , Mitsuru Koiwa , Yutaka Ohashi , Hisanori Nobe
发明人： Koichi Okamura , Yasuyoshi Hatazawa , Shu Sasaki , Mitsuru Koiwa , Yutaka Ohashi , Hisanori Nobe
IPC分类号： F02B1700
CPC分类号： F02P17/12 , F02P2017/125
摘要： A combustion state detecting apparatus for an internal combustion engine is imparted with facility for determining discriminatively the causes for non-occurrence of combustion. The apparatus includes a spark plug (4) for generating a spark discharge upon application of a high voltage generated by an ignition coil (1) in response to an ignition signal (X1) to thereby fire an air-fuel mixture within a cylinder of the internal combustion engine, an ion current detecting means (6A) for detecting as ion current detection signals (X2a; X2) an ion current corresponding to an amount of ions produced within the cylinder immediately after combustion of the air-fuel mixture, a signal detecting means (7A; 7B; 9) for comparing the ion current detection signal (X2a) outputted from the ion current detecting means (6A) with a first reference voltage (Vth1) to thereby output a first decision signal (X3) while comparing the ion current detection signal (X2) with a second reference voltage (Vth2) to thereby output a second decision signal (X4) while invalidating output of the second decision signal (X4) during a predetermine time period from a time point at which the comparison of the ion current detection signal (X2) with the second reference voltage (Vth2) is started, and an estimating logic unit (9, 10; 112) for estimating a cause for nongeneration of a combustion signal on the basis of output statuses of the first decision signal (X3) and the second decision signal (X4).
摘要翻译： 用于内燃机的燃烧状态检测装置被赋予用于确定不发生燃烧的原因的设备。 该装置包括火花塞（4），用于在施加由点火线圈（1）响应于点火信号（X1）产生的高电压时产生火花放电，从而使位于所述火花塞内的气缸内的空气燃料混合物 内燃机，用于检测作为离子电流检测信号（X2a; X2）的离子电流检测装置，其中所述离子电流对应于在所述空气 - 燃料混合物燃烧后立即产生的气缸内产生的离子的量， 用于将从离子电流检测装置（6A）输出的离子电流检测信号（X2a）与第一参考电压（Vth1）进行比较的装置（7A; 7B; 9），从而输出第一判定信号（X3），同时比较离子 具有第二参考电压（Vth2）的电流检测信号（X2），从而在从比较的时间点起的预定时间段期间使第二判定信号（X4）的输出无效的同时输出第二判定信号（X4） 开始具有第二参考电压（Vth2）的离子电流检测信号（X2），估计逻辑单元（9,10; 112），用于基于第一判定信号（X3）和第二判定信号（X4）的输出状态来估计燃烧信号的非燃性原因。
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6.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：US20060027211A1
公开(公告)日：2006-02-09
申请号：US11042076
申请日：2005-01-26
申请人： Yusuke Naruse , Hisanori Nobe , Mitsuru Koiwa
发明人： Yusuke Naruse , Hisanori Nobe , Mitsuru Koiwa
IPC分类号： F02P5/15
CPC分类号： F02P5/1455 , F02P3/05 , F02P5/151 , Y02T10/46
摘要： An ignition apparatus for an internal combustion engine is capable of avoiding mis-ignition even if subject to external disturbances when a fail signal is transmitted through a common signal line on which an ignition signal can also be transmitted. An igniter is connected to receive the ignition signal from an ECU, and includes a waveform shaper connected with the signal line and having an input connected in parallel to an input resistance so as to make a voltage at the input higher than a prescribed voltage when the ignition signal flows into the input resistance, and a pulse output circuit connected to the input and having an output for generating the fail signal into which a secondary coil current is converted. The pulse output circuit adjusts a fail signal current such that the voltage at the input when the fail signal flows into the input resistance becomes less than the prescribed voltage.
摘要翻译： 另外，内燃机的点火装置即使在故障信号通过也能够发送点火信号的公共信号线被发送的情况下也能够防止误动作。 连接点火器以接收来自ECU的点火信号，并且包括与信号线连接的波形整形器，并且具有与输入电阻并联连接的输入端，以便当输入端的电压高于规定电压时 点火信号流入输入电阻，而脉冲输出电路连接到输入端并具有用于产生转换了次级线圈电流的故障信号的输出端。 脉冲输出电路调节故障信号电流，使得当故障信号流入输入电阻时输入端的电压变得小于规定电压。
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公开(公告)号：US06997171B1
公开(公告)日：2006-02-14
申请号：US11042076
申请日：2005-01-26
申请人： Yusuke Naruse , Hisanori Nobe , Mitsuru Koiwa
发明人： Yusuke Naruse , Hisanori Nobe , Mitsuru Koiwa
IPC分类号： F02P1/00
CPC分类号： F02P5/1455 , F02P3/05 , F02P5/151 , Y02T10/46
摘要： An ignition apparatus for an internal combustion engine is capable of avoiding mis-ignition even if subject to external disturbances when a fail signal is transmitted through a common signal line on which an ignition signal can also be transmitted. An igniter is connected to receive the ignition signal from an ECU, and includes a waveform shaper connected with the signal line and having an input connected in parallel to an input resistance so as to make a voltage at the input higher than a prescribed voltage when the ignition signal flows into the input resistance, and a pulse output circuit connected to the input and having an output for generating the fail signal into which a secondary coil current is converted. The pulse output circuit adjusts a fail signal current such that the voltage at the input when the fail signal flows into the input resistance becomes less than the prescribed voltage.
摘要翻译： 另外，内燃机的点火装置即使在故障信号通过也能够发送点火信号的公共信号线被发送的情况下也能够防止误动作。 连接点火器以接收来自ECU的点火信号，并且包括与信号线连接的波形整形器，并且具有与输入电阻并联连接的输入端，以便当输入端的电压高于规定电压时 点火信号流入输入电阻，而脉冲输出电路连接到输入端并具有用于产生转换了次级线圈电流的故障信号的输出端。 脉冲输出电路调节故障信号电流，使得当故障信号流入输入电阻时输入端的电压变得小于规定电压。
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公开(公告)号：US5109827A
公开(公告)日：1992-05-05
申请号：US681829
申请日：1991-04-08
申请人： Hisanori Nobe , Mitsuru Koiwa
发明人： Hisanori Nobe , Mitsuru Koiwa
摘要： An ignition apparatus for an internal combustion engine is provided which is simple in the circuit arrangement and highly reliable in operation. An electromagnetic pickup coil generates an ignition signal having a magnitude proportional to the number of revolutions per minute of the engine in synchrony with the rotation thereof for controlling an ignition coil. A waveform shaper in the form of a comparator shapes the ignition signal from the pickup coil into a signal containing a pulse having a rising edge and a falling edge. An integrator integrates the ignition signal from the pickup coil to provide a rpm voltage representative of the number of revolutions per minute of the engine. A signal level controller controls the voltage level of the ignition signal based on the rpm voltage generated by the integrator. A current absorber absorbs from the ignition signal a current in accordance with the voltage of a power supply which powers the ignition coil. A switch turns off the current absorber when the shaped signal generated by the waveform shaper rises. A current-absorption suppressor suppresses a current to be absorbed by the current absorber in accordance with the rpm voltage generated by the integrator.
摘要翻译： 提供一种用于内燃机的点火装置，其电路布置简单并且操作高度可靠。 电磁拾取线圈与其旋转同步地产生具有与发动机的每分钟转数成比例的大小的点火信号，用于控制点火线圈。 以比较器形式的波形整形器使来自拾取线圈的点火信号形成包含具有上升沿和下降沿的脉冲的信号。 积分器将来自拾取线圈的点火信号进行积分，以提供代表发动机每分钟转数的转速电压。 信号电平控制器基于积分器产生的转速电压控制点火信号的电压电平。 电流吸收器根据对点火线圈供电的电源的电压从点火信号吸收电流。 当波形整形器产生的成形信号上升时，开关关闭电流吸收器。 电流吸收抑制器根据积分器产生的转数电压抑制电流吸收器吸收的电流。
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公开(公告)号：US07007683B2
公开(公告)日：2006-03-07
申请号：US10800970
申请日：2004-03-16
申请人： Yusuke Naruse , Hisanori Nobe
发明人： Yusuke Naruse , Hisanori Nobe
IPC分类号： F02P5/145
CPC分类号： F02P1/083 , F02D2041/2058 , F02D2041/2075 , F02P3/0453 , F02P3/051
摘要： An internal combustion engine ignition apparatus includes a switching circuit having no power supply terminal connected to a power supply such as a battery is constructed, and including an output terminal connected to an ignition coil, an input terminal for receiving an ignition signal voltage and a reference potential terminal connected to a reference potential. In the switching circuit, the terminal structure is simplified, and energization timing and ignition timing can be set more accurately. A current supply circuit is connected between the input terminal and the reference potential terminal, and a current is supplied from the current supply circuit to a drive resistor of the switching element. In this current supply circuit, an energization timing when supply of the driving current is started is controlled by a waveform shaping circuit operating by the ignition signal voltage, and an ignition timing when the driving current is interrupted is controlled.
摘要翻译： 一种内燃机点火装置，包括：不构成与电池等电源连接的电源端子的开关电路，具有与点火线圈连接的输出端子，接收点火信号电压的输入端子和基准电压 电位端子连接到参考电位。 在开关电路中，简化了端子结构，并且能够更准确地设定通电定时和点火正时。 电流供给电路连接在输入端子和参考电位端子之间，电流从电流供给电路提供给开关元件的驱动电阻器。 在该电流供给电路中，通过由点火信号电压进行动作的波形整形电路来控制供给驱动电流的通电定时，控制驱动电流中断时的点火正时。
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