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21. 发明授权

US06328016B1 Knock suppression control apparatus for internal combustion engine 失效
标题翻译：内燃机用抑制控制装置
公开(公告)号：US06328016B1
公开(公告)日：2001-12-11
申请号：US09500478
申请日：2000-02-09
申请人： Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi
发明人： Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi
IPC分类号： F02P5152
CPC分类号： F02P5/152 , F02P17/12 , Y02T10/46
摘要： A knock suppression control apparatus for an internal combustion engine which can avoid erroneous knock detection and hence the erroneous knock suppression control, to thereby ensure knock suppression control with high reliability. The knock suppression control apparatus includes an ion current detecting means (10) for detecting an ion current (i) flowing by way of a spark plug (8) upon combustion of an air-fuel mixture charged in the cylinder, a filter means (14A) for extracting a knock signal (Kj) from an output signal (Ei) of the ion current detecting means (10), a knock decision means (23) for deciding occurrence of a knock event in the engine on the basis of the knock signal (Kj), a control quantity correcting means (24) for correcting a control quantity for the internal combustion engine so as to suppress the knock event on the basis of result (H) of decision made by the knock decision means (23), an integrating means (16, 16A) for arithmetically determining an integral value (Km; Em) which corresponds to an output level of the ion current (Ei), a comparison level setting means (26, 26A) for setting a predetermined comparison reference level (MR) for the integral value (Km; Em), and a correcting quantity arithmetic means (25, 25A) for outputting a correcting signal (M1; M2) for correcting parameters relevant to the knock decision means (23) or alternatively relevant to the control quantity correcting means (24) on the basis of result of the comparison between the integral value (Km; Em) and the comparison reference level (MR).
摘要翻译：一种用于内燃机的爆震抑制控制装置，其可以避免错误的爆震检测和因此的错误的爆震抑制控制，从而以高可靠性确保爆震抑制控制。爆震抑制控制装置包括：离子电流检测装置（10），用于检测在汽缸内装入的空气燃料混合物燃烧时通过火花塞（8）流动的离子流（i）;过滤装置（14A）），用于从离子电流检测装置（10）的输出信号（Ei）提取爆震信号（Kj）;基于爆震信号判定发动机爆震事件的爆震判定装置（23）（Kj），用于根据由所述爆震判定装置（23）作出的判定结果（H）来校正所述内燃机的控制量以抑制所述爆震事件的控制量校正装置，用于算术确定对应于离子电流（Ei）的输出电平的积分值（Km; Em）的积分装置（16,16A），用于设定预定比较基准电平的比较电平设定装置（26,26A） MR）和积分值（Km; Em）和校正量ar 算术装置（25,25A），用于输出校正信号（M1; M2），用于根据积分值（Km; Em）和比较参考电平（MR）之间的比较结果校正与爆震判定装置（23）相关的参数，或者与控制量校正装置（24）相关）。

22. 发明授权

US06418785B1 Misfire detecting apparatus for internal combustion engine 有权
标题翻译：内燃机失火检测装置
公开(公告)号：US06418785B1
公开(公告)日：2002-07-16
申请号：US09531326
申请日：2000-03-20
申请人： Yasuyoshi Hatazawa , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi , Hisanori Nobe
发明人： Yasuyoshi Hatazawa , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi , Hisanori Nobe
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。

23. 发明授权

US06275041B1 Combustion state detecting apparatus for internal combustion engine 有权
标题翻译：内燃机燃烧状态检测装置
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。

24. 发明授权

US06348797B1 Combustion state detecting apparatus for internal combustion engine 有权
标题翻译：内燃机燃烧状态检测装置
公开(公告)号：US06348797B1
公开(公告)日：2002-02-19
申请号：US09499344
申请日：2000-02-08
申请人： Takeshi Shimizu , Mitsuru Koiwa , Yutaka Ohashi
发明人： Takeshi Shimizu , Mitsuru Koiwa , Yutaka Ohashi
IPC分类号： F02B1700
CPC分类号： F02P17/12 , H01F2019/085
摘要： A combustion state detecting apparatus for an internal combustion engine which can ensure adequate thermal insulation between a transformer and a bias circuit and which can be manufactured in a miniaturized structure. The apparatus includes a transformer (11) having a primary winding (111) and a secondary winding (112) which are so electromagnetically coupled mutually that upon interruption of a current flowing through the primary winding, a high voltage is induced at a high-potential end of the secondary winding, a switch (12) for controllably interrupting the current flowing through the primary winding, a spark plug (3) for generating a spark discharge in response to application of the high voltage at the high-potential end of the secondary winding, a bias circuit (13) for applying to a low-potential end of the secondary winding a voltage of plus polarity for detecting ions produced when the spark discharge occurs at the spark plug, and an outer packaging case (16) for accommodating therein the transformer, the switch and the bias circuit, wherein the bias circuit is disposed within the outer packaging case at a location adjacent to the switch remote from the transformer, and wherein the outer packaging case is filled with a moldable resin (17).
摘要翻译：一种用于内燃机的燃烧状态检测装置，其能够确保变压器和偏置电路之间的充分的热绝缘，并且可以以小型化结构制造。该装置包括具有初级绕组（111）和次级绕组（112）的变压器（11），它们相互电磁耦合，使得在中断流过初级绕组的电流时，高电压被诱导为高电位次级绕组的端部，用于可控地中断流过初级绕组的电流的开关（12），用于响应于在次级的高电位端施加高电压而产生火花放电的火花塞（3）绕组，用于向次级绕组的低电位端施加正极性电压的偏置电路（13），用于检测在火花塞处发生火花放电时产生的离子;以及外包装盒（16），用于容纳其中所述变压器，所述开关和所述偏置电路，其中所述偏置电路在远离所述变压器的所述开关附近的位置处设置在所述外包装壳体内，并且其中所述外部平衡用可模塑树脂（17）填充卡盘盒。

25. 发明授权

US06334353B1 Knock detection apparatus for an internal combustion engine 有权
标题翻译：用于内燃机的敲击检测装置
公开(公告)号：US06334353B1
公开(公告)日：2002-01-01
申请号：US09482514
申请日：2000-01-14
申请人： Hisanori Nobe , Yasuyoshi Hatazawa , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi
发明人： Hisanori Nobe , Yasuyoshi Hatazawa , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi
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。

26. 发明申请

US20060027211A1 IGNITION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE 失效
标题翻译：内燃机点火装置
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。

27. 发明授权

US06550456B1 Combustion state detection apparatus for internal combustion engine 有权
标题翻译：内燃机燃烧状态检测装置
公开(公告)号：US06550456B1
公开(公告)日：2003-04-22
申请号：US10261579
申请日：2002-10-02
申请人： Toshio Uchida , Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa
发明人： Toshio Uchida , Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa
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。

28. 发明授权

US06427662B2 Knock control apparatus for internal combustion engine 有权
标题翻译：内燃机爆震控制装置
公开(公告)号：US06427662B2
公开(公告)日：2002-08-06
申请号：US09726519
申请日：2000-12-01
申请人： Kimihiko Tanaya , Yasuyoshi Hatazawa , Koichi Okamura , Mitsuru Koiwa
发明人： Kimihiko Tanaya , Yasuyoshi Hatazawa , Koichi Okamura , Mitsuru Koiwa
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。

29. 发明授权

US5977856A Ignition coil device for internal-combustion engine 失效
标题翻译：内燃机点火线圈装置
公开(公告)号：US5977856A
公开(公告)日：1999-11-02
申请号：US990783
申请日：1997-12-15
申请人： Toshio Maekawa , Mitsuru Koiwa
发明人： Toshio Maekawa , Mitsuru Koiwa
IPC分类号： H01F38/12 , F02P3/02 , F02P13/00 , H01F27/02 , F02P15/00
CPC分类号： F02P13/00 , F02P3/02
摘要： An ignition coil device for an internal-combustion engine reduces the deterioration in reliability caused by heat stress. The ignition coil device is provided with: a case (5); a core (6) provided in the case (5); a primary coil (8) which is provided so that it surrounds the core (6) and which has a primary winding (13) trough which a primary current flows composed of a conductor wound around a bottomed cylindrical primary bobbin (12); a secondary coil (9) which is provided so that it surrounds the primary coil (8) and in which high voltage is generated by the interruption of the primary current; a stopper (21) which is provided at an opening (12a) of the primary bobbin (12) to close the opening (12a) of the primary bobbin (12); and an insulator (11) composed of a thermosetting resin which is provided in the case (5) to secure the primary coil (8) and the secondary coil (9) in the case (5). The stopper (21) prevents the insulator (11), which has not yet been thermally cured, from flowing between the core (6) and the primary bobbin (12) when it is charged into the case (5).
摘要翻译：用于内燃机的点火线圈装置降低由热应力导致的可靠性的劣化。点火线圈装置设有：壳体（5）; 设置在壳体（5）中的芯体（6）; 初级线圈（8），其被设置为使其包围所述芯体（6），并且具有初级绕组（13），所述初级绕组由初级电流流过，所述初级绕组围绕着有底圆筒形初级线轴（12）缠绕在导体上。次级线圈（9），其被设置成使其围绕初级线圈（8），并且其中通过初级电流的中断产生高电压; 一个设置在主线轴（12）的开口（12a）上以闭合主线轴（12）的开口（12a）的止动器（21）; 以及设置在壳体（5）中以将初级线圈（8）和次级线圈（9）固定在壳体（5）中的由热固性树脂构成的绝缘体（11）。当塞子（21）装入壳体（5）中时，止动件（21）防止未被热固化的绝缘体（11）在芯体（6）和主线轴（12）之间流动。

30. 发明授权

US5634453A Ignition apparatus for internal combustion engine 失效
标题翻译：内燃机点火装置
公开(公告)号：US5634453A
公开(公告)日：1997-06-03
申请号：US590328
申请日：1996-01-23
申请人： Masaaki Taruya , Mitsuru Koiwa
发明人： Masaaki Taruya , Mitsuru Koiwa
IPC分类号： F02P3/04 , F02P9/00 , F02P3/05
CPC分类号： F02P9/002
摘要： An ignition apparatus for internal combustion engine includes an ignition power unit 1A having a power transistor 14A for feeding and shutting off a primary current i1 to and from an ignition coil 13 and a control circuit 2 having a CPU 21 for calculating an ignition timing of an internal combustion engine and a feeding time of the primary current in accordance with an operating state D and outputting an ignition signal G to the power transistor, feeds and shuts off the primary current in response to an ignition signal Ga to generate a high-tension secondary voltage from the ignition coil. The power transistor has a characteristic for increasing a direct current amplifying ratio as a base to emitter voltage VBE between a base and emitter increases to suppress the rising-up of the primary current to thereby suppress a secondary voltage generated when the primary current starts to be fed. With this arrangement, the ignition apparatus for internal combustion engine can suppress malfunction when the ignition signal rises up without the use of a high-tension diode and realize cost reduction and miniaturization of the apparatus.
摘要翻译：一种用于内燃机的点火装置包括点火功率单元1A，该点火功率单元1A具有用于向和从点火线圈13供给和关闭初级电流i1的功率晶体管14A和具有用于计算点火正时的CPU 21的控制电路2 内燃机和根据工作状态D的一次电流的供电时间，并将点火信号G输出到功率晶体管，响应于点火信号Ga进给和关闭一次电流，以产生高压次级点火线圈的电压。功率晶体管具有增加直流放大比的特性，因为基极和发射极之间的基极到发射极电压VBE增加以抑制初级电流的上升，从而抑制当初级电流开始时产生的次级电压喂。通过这种布置，内燃机的点火装置可以在不使用高压二极管的情况下点燃信号上升而抑制故障，实现设备的成本降低和小型化。

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