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1. 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。

2. 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。

3. 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。

4. 发明授权

US07624717B2 Internal-combustion-engine combustion condition detection apparatus 有权
标题翻译：内燃机燃烧条件检测装置
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
IPC分类号： F02P5/145 , G01M15/04
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。

5. 发明授权

US06865929B2 Combustion state detection and failure determination apparatus of an internal combustion engine 有权
标题翻译：内燃机的燃烧状态检测和故障确定装置
公开(公告)号：US06865929B2
公开(公告)日：2005-03-15
申请号：US10261502
申请日：2002-10-02
申请人： Koichi Okamura , Hisanori Nobe , Yasuhiro Takahashi , Mitsuru Koiwa
发明人： Koichi Okamura , Hisanori Nobe , Yasuhiro Takahashi , Mitsuru Koiwa
IPC分类号： G01M15/04 , F02D45/00 , F02P17/12 , G01L23/22 , G01M15/00
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。

6. 发明授权

US06378494B1 Knock detection apparatus 失效
标题翻译：敲击检测装置
公开(公告)号：US06378494B1
公开(公告)日：2002-04-30
申请号：US09628421
申请日：2000-07-28
申请人： Yasuyoshi Hatazawa , Koichi Okamura , Hisanori Nobe , Mitsuru Koiwa
发明人： Yasuyoshi Hatazawa , Koichi Okamura , Hisanori Nobe , Mitsuru Koiwa
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。

7. 发明授权

US06336355B1 Combustion condition detecting apparatus for an internal combustion engine 有权
标题翻译：用于内燃机的燃烧条件检测装置
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。

8. 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）。

9. 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。

10. 发明授权

US06311672B1 Device for controlling the knocking of an internal combustion engine 失效
标题翻译：用于控制内燃机爆震的装置
公开(公告)号：US06311672B1
公开(公告)日：2001-11-06
申请号：US09496252
申请日：2000-02-01
申请人： Tsutomu Morishita , Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi
发明人： Tsutomu Morishita , Yasuhiro Takahashi , Koichi Okamura , Mitsuru Koiwa , Yutaka Ohashi
IPC分类号： F02P1152
CPC分类号： F02D35/027 , F02P5/1525 , F02P17/12 , F02P2017/128 , G01L23/225 , Y02T10/46
摘要： A device for controlling knocking of an internal combustion engine featuring improved reliability by preventing signals of the knocking level from being erroneously detected as those of the noise level. The device detects an ionic current flowing through a spark plug, counts a signal of the knocking level from the ionic current, establishes an average knocking level from the signals of the knocking level and determines a background level from the average knocking level. A comparator judges the knocking state by comparing the signal of the knocking level with the background level. The device calculates the control quantity of the engine based on the operation conditions and the result of judgement of knocking. The device further judges a transient state and decreases the average knocking level depending upon a transience judgment signal in order to maintain a background level in a transient state at an optimum value.
摘要翻译：一种用于通过防止爆震级别的信号被错误地检测为噪声水平的信号来控制具有改进的可靠性的内燃机的爆震的装置。该装置检测流过火花塞的离子电流，从离子电流计数敲击电平的信号，从敲击电平的信号建立平均敲击电平，并从平均敲击电平确定背景电平。比较器通过将敲击级别的信号与背景级别进行比较来判断敲击状态。该装置根据操作条件和敲击判断结果计算发动机的控制量。该装置进一步判断瞬态状态，并根据瞬态判断信号降低平均敲击电平，以将瞬态中的背景电平维持在最佳值。

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