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51. 发明授权

US5070853A Ignition device for an internal combustion engine 失效
标题翻译：用于内燃机的点火装置
公开(公告)号：US5070853A
公开(公告)日：1991-12-10
申请号：US638592
申请日：1991-01-08
申请人： Mitsuru Koiwa
发明人： Mitsuru Koiwa
IPC分类号： F02P3/045
CPC分类号： F02P3/0453
摘要： An ignition device for an internal combustion engine comprises an ignition signal generator whose output signal has a magnitude corresponding to the engine rpms and is in synchronism therewith, a d.c. bias circuit 3 having a predetermined construction and component parameter values for superimposing a d.c. bias voltage on the ignition signal, a threshold setting circuit for determining a threshold level voltage, a comparator 2b having a first input terminal for receiving a signal obtained by superimposing the ignition signal and the d.c. bias voltage and a second input terminal for receiving the threshold level voltage to thereby generate an output having an inverse level in response to the magnitude of the input voltages inputted to the input terminals, and a switching circuit 4 for controlling a primary current to an ignition coil in response to the output of the comparison circuit. The threshold level voltage at the time of supplying the primary current to the ignition coil is determined by a circuit including a plurality of components having the same component parameter values as corresponding components in the d.c. bias circuit.

52. 发明授权

US06925374B2 Misfire detection apparatus of internal combustion engine 失效
标题翻译：内燃机失火检测装置
公开(公告)号：US06925374B2
公开(公告)日：2005-08-02
申请号：US10273272
申请日：2002-10-18
申请人： Kenji Matsushita , Kimihiko Tanaya , Koichi Okamura , Mitsuru Koiwa
发明人： Kenji Matsushita , Kimihiko Tanaya , Koichi Okamura , Mitsuru Koiwa
IPC分类号： F02D45/00 , F02P17/12 , G01M15/11 , G06G7/70 , F02P17/00
CPC分类号： G01M15/11 , F02D35/021 , F02D41/22 , F02D41/28 , F02D2041/286 , F02D2200/1015 , F02P17/12 , F02P2017/125 , Y02T10/40
摘要： A misfire detection apparatus of an internal combustion engine for detecting combustion or a misfire of an air fuel mixture in the internal combustion engine based on an ion current generated at the combustion time of the air fuel mixture. The misfire detection apparatus includes ion current detection means and misfire determination means. The ion current detection means detects the ion current responsive to the amount of ions occurring in a cylinder just after combustion of the air fuel mixture in the cylinder in the internal combustion engine. The misfire determination means calculates a predetermined function based on the ion current detection value and determines that the condition is combustion when the magnitude exceeds a threshold value.
摘要翻译：一种用于基于在空气燃料混合物的燃烧时间产生的离子电流来检测内燃机中的空气燃料混合物的燃烧或失火的内燃机的失火检测装置。失火检测装置包括离子电流检测装置和失火判定装置。离子电流检测装置根据在内燃机中的气缸内的空气燃料混合物燃烧之后的气缸中发生的离子量来检测离子电流。失火判定单元基于离子电流检测值来计算预定的功能，并且当幅度超过阈值时，判定为燃烧状态。

53. 发明授权

US06474302B2 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：US06474302B2
公开(公告)日：2002-11-05
申请号：US09728089
申请日：2000-12-04
申请人： Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Tsutomu Morishita
发明人： Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Tsutomu Morishita
IPC分类号： F02P515
CPC分类号： F02P5/1526 , F02D35/021 , F02D35/027 , Y02T10/46
摘要： To obtain a knock control apparatus for internal-combustion engine having a function of judging whether or not the causes for failure have been solved for returning to normal knock control at the time of the solution, and capable of easily judging failure even in a failure mode in which it is difficult to raise the filter value and it is difficult to judge the failure. A fail control means 4 includes: a failure judgment unit 4 for judging failure for each cylinder based on output from a background level setting unit 2 and a knock suppression and control unit 3; number of fail cylinders judgment unit 42 for judging the number of fail cylinders based on output from the failure judgment unit 41; a retard angle changing unit 43 for changing at least the real retard angle of a fail cylinder based on output from the knock suppression and control unit 3, the failure judgment unit 41 and the number of fail cylinders judgment unit 42; and a normal judgment returning unit 44 for returning to normal ignition timing retard when a cylinder under judgment for failure meets normal judgment requirements based on the output from the background level setting unit 2 and the retard angle changing unit 43.
摘要翻译：为了获得具有判断故障原因是否已经解决用于在解决时恢复正常爆震控制的功能的内燃机的爆震控制装置，并且即使在故障模式下也能够容易地判断故障其中难以提高过滤器值，并且难以判断故障。失效控制装置4包括：故障判断单元4，用于根据来自背景等级设置单元2和敲击抑制和控制单元3的输出来判断每个气缸的故障; 用于根据故障判断单元41的输出判断失败气缸数的故障气缸判定单元42的数量; 延迟角改变单元43，用于根据爆震抑制和控制单元3，故障判断单元41和失败气缸判断单元42的数量，至少改变故障气缸的实际延迟角; 以及正常判断返回单元44，用于当基于判断失败的圆筒根据来自背景等级设置单元2和延迟角度改变单元43的输出满足正常判断要求时返回正常点火正时延迟。

54. 发明授权

US06360586B1 Device for detecting the knocking of an internal combustion engine 失效
标题翻译：用于检测内燃机爆震的装置
公开(公告)号：US06360586B1
公开(公告)日：2002-03-26
申请号：US09496253
申请日：2000-02-01
申请人： Tsutomu Morishita , Yasuhiro Takahashi , Koichi Okamura , Kimihiko Tanaya , Mitsuru Koiwa
发明人： Tsutomu Morishita , Yasuhiro Takahashi , Koichi Okamura , Kimihiko Tanaya , Mitsuru Koiwa
IPC分类号： G01L2322
CPC分类号： F02D35/027 , F02D2041/1432 , F02P5/1525 , F02P2017/128 , G01L23/225 , Y02T10/46
摘要： A device for detecting the knocking of an internal combustion engine, which maintains the background level at an optimum value irrespective of the knocking level, and features improved reliability by preventing the erroneous detection of noise or knocking when the knocking level is shifted. The device includes a counter 12 for operating signals N of the knocking level from the ionic current, an averaging circuit 13A for operating an average knocking level AVE, a circuit 14A for operating a background level BGLA by using an offset value, a comparator 15 for judging the knocking by comparing the signals of the knocking level with the background level, a circuit 16 for judging the average knocking level that lies in a predetermined region, and a circuit 17 for correcting the offset value depending on the result of judging the predetermined region, wherein the offset value is corrected toward a direction to cancel the increment or the decrement of the average knocking level depending on the predetermined region.
摘要翻译：一种用于检测内燃机的爆震的装置，其将背景水平保持在最佳值，而不管撞击水平如何，并且通过防止当敲击水平移动时噪声的错误检测或敲击而具有改进的可靠性。该装置包括用于从离子电流操作敲击电平的信号N的计数器12，用于操作平均敲击电平AVE的平均电路13A，用于通过使用偏移值来操作背景电平BGLA的电路14A，用于通过比较敲击电平的信号与背景电平来判断敲击，用于判断位于预定区域中的平均敲击电平的电路16以及用于根据判断预定区域的结果校正偏移值的电路17 其中，偏移值根据预定区域朝着取消平均敲击等级的增量或减小的方向被校正。

55. 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。

56. 发明授权

US06298823B1 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：US06298823B1
公开(公告)日：2001-10-09
申请号：US09495485
申请日：2000-02-01
申请人： Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Tsutomu Morishita
发明人： Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Tsutomu Morishita
IPC分类号： F02P5152
CPC分类号： F02P17/12 , F02P5/1526 , Y02T10/46
摘要： A knock control apparatus for suppressing knock event in an internal combustion engine by correcting a control quantity such as ignition timing for the engine while evading erroneous knock decision and erroneous knock control when a spark plug of the engine is in a sooting state. The apparatus includes a means (10) for detecting an ion current (i) flowing by way of the spark plug (8) upon combustion of air-fuel mixture within an engine cylinder being monitored, a filter means (14) 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 the control quantity for the internal combustion engine so as to suppress the knock event on the basis of result (H) of decision, and a sooting state detecting means (25) for detecting a sooting state of the spark plug (8) on the basis of a current signal (Gi) detected through the ion current detecting means (10) during a period in which detection of the ion current (i) is not performed, wherein the sooting state detecting means (25) generates a correction inhibiting signal (M1; M2) for inhibiting correction of the control quantity as performed by the control quantity correcting means (24) on the basis of the decision result (H) the sooting state of the spark plug (8) is detected.
摘要翻译：一种爆震控制装置，用于通过在发动机的火花塞处于燃烧状态的同时避免错误的敲击判定和错误的爆震控制来校正发动机的点火正时等控制量来抑制内燃机的爆震事件。该装置包括一个装置（10），用于检测在被监测的发动机气缸内的空气燃料混合物燃烧时通过火花塞（8）流动的离子流（i），用于提取爆震的过滤装置（14）信号（Kj），根据爆震信号（Kj）决定发动机的爆震事件发生的爆震判定装置（23），控制量校正装置（24），用于根据判定结果（H）来校正内燃机的控制量以抑制爆震事件;以及用于检测烟炱状态的烟炱状态检测装置（25）基于在不执行离子电流（i）的检测的时间段期间通过离子电流检测装置（10）检测的电流信号（Gi）的火花塞（8），其中所述烟炱状态检测装置 25）产生用于禁止校正的校正禁止信号（M1; M2）根据判定结果（H），控制量校正装置（24）执行的控制量的检测，检测火花塞（8）的烟炱状态。

57. 发明授权

US06234146B1 Knock control device for an internal combustion engine 有权
标题翻译：用于内燃机的敲击控制装置
公开(公告)号：US06234146B1
公开(公告)日：2001-05-22
申请号：US09495487
申请日：2000-02-01
申请人： Kimihiko Tanaya , Yasuhiro Takahashi , Yasuyoshi Hatazawa , Mitsuru Koiwa
发明人： Kimihiko Tanaya , Yasuhiro Takahashi , Yasuyoshi Hatazawa , Mitsuru Koiwa
IPC分类号： F02P5152
CPC分类号： G01L23/225 , F02P5/152 , Y02T10/46
摘要： A knock control device for an internal combustion engine includes means 12 for calculating a knock level signal N on the basis of an ionic current, means 20 for arithmetically estimating a maximum noise level MN on the basis of a variation in the knock level signal, means 25 for obtaining a noise peak value PA on the basis of the maximum noise level, means 14A for calculating a background level BGLA on the basis of the noise peak value, means 15 for judging the knock on the basis of the background level, and means 7 for arithmetically operating the controlled variable on the basis of the knock judgement result.
摘要翻译：用于内燃机的爆震控制装置包括用于基于离子电流计算爆震级信号N的装置12，用于基于爆震级信号的变化对算法估计最大噪声电平MN的装置20， 25，用于基于最大噪声电平获得噪声峰值PA;基于噪声峰值计算背景电平BGLA的装置14A;基于背景电平判断敲击的装置15;以及装置 7用于根据敲击判断结果算术操作受控变量。

58. 发明授权

US5603307A Ignition coil for internal combustion engine 失效
标题翻译：内燃机点火线圈
公开(公告)号：US5603307A
公开(公告)日：1997-02-18
申请号：US582437
申请日：1996-01-03
申请人： Shingo Morita , Mitsuru Koiwa
发明人： Shingo Morita , Mitsuru Koiwa
IPC分类号： F02P15/00 , F02P3/02 , F02P3/055 , H01F38/12 , F02P3/04
CPC分类号： F02P3/02 , F02P3/0552 , H01F38/12
摘要： An ignition coil for an internal combustion engine to suppress the superposition of a noise signal caused by a capacitive discharge current at an ignition plug to thereby prevent the faulty operation of other circuit devices. The ignition coil has first and second non-magnetic bobbins into which a magnetic core 3 is inserted, a primary coil (1) wire wound around the first bobbin, a secondary coil (2) wire wound around the second bobbin, an interrupting circuit 7 connected to one end of the primary coil for interrupting a primary current i1 flowing to the primary coil, and an ignition plug 5 connected to one end of the secondary coil for generating a discharge spark by a secondary voltage V2 output from the secondary coil. A buffer coil 8 having an inductance which is much smaller than that of the primary or secondary coil is connected in series with one of them.
摘要翻译：一种用于内燃机的点火线圈，用于抑制由火花塞处的电容放电电流引起的噪声信号的叠加，从而防止其他电路装置的故障操作。点火线圈具有插入磁芯3的第一和第二非磁性线轴，围绕第一线圈架缠绕的初级线圈（1）线圈，缠绕在第二线圈架上的次级线圈（2）线，中断电路7 连接到初级线圈的一端以中断流过初级线圈的初级电流i1，以及火花塞5，其连接到次级线圈的一端，用于通过从次级线圈输出的次级电压V2产生放电火花。具有小于初级或次级线圈的电感的电感的缓冲线圈8与它们中的一个串联连接。

59. 发明授权

US5215066A 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：US5215066A
公开(公告)日：1993-06-01
申请号：US959404
申请日：1992-10-13
申请人： Takafumi Narishige , Shingo Morita , Mitsuru Koiwa
发明人： Takafumi Narishige , Shingo Morita , Mitsuru Koiwa
IPC分类号： F02P3/08 , F02P9/00
CPC分类号： F02P9/007 , F02P3/0869 , F02P3/0892 , F02P9/002
摘要： An LCDI-type ignition apparatus for an internal combustion engine includes first and second capacitors connected to an ignition coil and a voltage source for generating a charging voltage for the capacitors. The first capacitor is for producing an initial discharge of a spark plug, and the second capacitor is for lengthening the discharge of the spark plug after discharge has been initiated by the first capacitor. In one form of the invention, the second capacitor is charged only after the first capacitor has been charged by the voltage source to a prescribed voltage sufficient to produce a suitable discharge of the spark plug. As a result, even when the engine is operating at a high rotational speed and the time between consecutive firings of the engine is small, an adequate ignition voltage can be obtained. In another form of the invention, the charging voltage(s) of one or both of the capacitors is or are varied in accordance with the one or more engine operating conditions. Each charging voltage can be controlled to the minimum necessary value based on the present engine operating conditions.
摘要翻译：用于内燃机的LCDI型点火装置包括连接到点火线圈的第一和第二电容器以及用于产生电容器的充电电压的电压源。第一电容器用于产生火花塞的初始放电，并且第二电容器用于在由第一电容器启动放电之后延长火花塞的放电。在本发明的一种形式中，第二电容器仅在第一电容器已被电压源充电到足以产生适当的火花塞放电的规定电压之后进行充电。因此，即使在发动机以高转速运转，发动机连续起动之间的时间小的情况下，也能够获得足够的点火电压。在本发明的另一种形式中，一个或两个电容器的充电电压根据一个或多个发动机工作条件而变化或者是变化的。基于目前的发动机工作条件，可将每个充电电压控制到最小必要值。

60. 发明授权

US4977883A Ignition control apparatus for an internal combustion engine 失效
标题翻译：内燃机用点火控制装置
公开(公告)号：US4977883A
公开(公告)日：1990-12-18
申请号：US495804
申请日：1990-03-19
申请人： Mitsuru Koiwa
发明人： Mitsuru Koiwa
IPC分类号： F02P15/00 , F02P3/04 , F02P3/05 , F02P3/09 , F02P15/12
CPC分类号： F02P15/12 , F02P3/051
摘要： An ignition apparatus for an engine limits the primary winding current of an ignition coil to a prescribed level. The conducting time of drive transistors which control the primary winding current is controlled on the basis of the voltage across a capacitor which is charged by a signal generator. At normal engine speeds, when the primary winding current reaches the prescribed level, current is bypassed around the capacitor by a bypass transistor. When the engine is cranking and the signal generator voltage is low, a switching transistor disables the bypass transistor, and the capacitor is not bypassed, thereby preventing misfiring.
摘要翻译：用于发动机的点火装置将点火线圈的初级绕组电流限制到规定水平。基于由信号发生器充电的电容器两端的电压来控制控制初级绕组电流的驱动晶体管的导通时间。在正常的发动机转速下，当初级绕组电流达到规定水平时，电流通过旁路晶体管绕过电容器旁路。当发动机起动并且信号发生器电压低时，开关晶体管禁用旁路晶体管，并且电容器不被旁路，从而防止点火。

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