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。

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。

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。

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。