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公开(公告)号：US07853400B2
公开(公告)日：2010-12-14
申请号：US12496189
申请日：2009-07-01
IPC分类号： F02P5/15
CPC分类号： G01L23/225 , F02D35/027 , F02D2041/286 , F02D2041/288 , F02P5/152 , Y02T10/46
摘要： A knock control apparatus includes: a knock sensor for detecting knock of an internal combustion engine; a signal processing section for calculating a knock intensity; and knock determination level setting sections: for calculating an average value of the knock intensity; for calculating, based on the average value, an overall variance of the knock intensity of an entirety of a frequency distribution, a higher variance of the knock intensity above the average value, and a lower variance of the knock intensity below the average value; for calculating a standard deviation of the knock intensity from the overall variance; for presetting a value allowing the frequency distribution of the knock intensity to be a predetermined confidence interval as a confidence coefficient; and for setting a sum of the average value and a value obtained by multiplying the standard deviation by the corrected confidence coefficient as a knock determination level.
摘要翻译： 爆震控制装置包括：用于检测内燃机的爆震的爆震传感器; 用于计算爆震强度的信号处理部分; 爆震判定等级设定部分：计算爆震强度的平均值; 用于基于平均值计算整个频率分布的敲击强度的总体方差，高于平均值的爆震强度的较高方差和低于平均值的爆震强度的较低方差; 用于计算爆震强度与总方差的标准偏差; 用于将允许爆震强度的频率分布设定为预定置信区间的值作为置信系数; 并且通过将标准偏差乘以校正的置信系数作为爆震判定水平来设置平均值和值。
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公开(公告)号：US08949006B2
公开(公告)日：2015-02-03
申请号：US13251939
申请日：2011-10-03
CPC分类号： F02P5/152 , F02D35/027 , F02D41/2451 , F02D2041/286 , F02D2041/288 , Y02T10/46
摘要： A knock control apparatus for internal combustion engine includes: a knock signal normalization unit that normalizes a knock signal extracted from an output signal of a knock sensor; a knock determination threshold setting unit that sets a knock determination threshold on the basis of the normalized knock signal; a knock intensity computation unit that calculates knock intensity on the basis of the normalized knock signal and the set knock determination threshold; a knock determination unit that determines a presence or absence of a knock on the basis of the calculated knock intensity; and a knock correction amount computation unit that calculates a knock correction amount to correct the calculated knock intensity in a case where an occurrence of a knock is determined. The knock signal normalization unit normalizes a standard deviation of the knock signal by dividing the knock signal by an average value of the knock signal.
摘要翻译： 用于内燃机的爆震控制装置包括：敲击信号归一化单元，其对从爆震传感器的输出信号提取的爆震信号进行归一化; 爆震判定阈值设定单元，其基于归一化爆震信号设定爆震判定阈值; 敲击强度计算单元，其基于所述归一化爆震信号和所述设定爆震判定阈值来计算爆震强度; 敲击判定单元，其基于所计算的爆震强度来确定爆震的存在或不存在; 以及敲击校正量计算单元，其在确定敲击的发生的情况下计算敲击校正量以校正所计算的敲击强度。 敲击信号归一化单元通过将爆震信号除以爆震信号的平均值来标准化爆震信号的标准偏差。
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公开(公告)号：US08694229B2
公开(公告)日：2014-04-08
申请号：US13226999
申请日：2011-09-07
IPC分类号： F02P5/152
CPC分类号： F02P5/152 , F02D35/027 , Y02T10/46
摘要： A knock correction amount computation portion computes, on the basis of intensity of a knock in a case where the presence of an occurrence of the knock is determined, a knock correction amount by which to move a spark timing of the internal combustion engine to be on a retard side and returns the knock correction amount to be back on an advance side in a case where the absence of an occurrence of a knock is determined. In a case where a value of the knock correction amount to be on the retard side becomes equal to or exceeds a predetermined value, the knock correction amount computation portion limits and holds the knock correction amount at the predetermined value and returns the limited knock correction amount to be back on the advance side in a case where the absence of an occurrence of a knock is determined.
摘要翻译： 敲击校正量计算部分在确定爆震发生的情况下，基于爆震的强度来计算将内燃机的火花正时移动为打开的爆震校正量 在确定不存在爆震的情况下，返回到前进侧的爆震校正量。 在爆震校正量的滞后侧的值变为等于或超过预定值的情况下，爆震校正量计算部分将爆震校正量限制并保持在预定值，并且返回有限爆震校正量 在确定不存在爆震的情况下回到前进侧。
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公开(公告)号：US10197036B2
公开(公告)日：2019-02-05
申请号：US13290437
申请日：2011-11-07
摘要： An operation status value detection unit detects two or more operation status values indicating an operation status of an internal combustion engine. A filtering processing unit applies filtering processing to the detected operation status values, and an operation status value difference calculation unit calculates the difference between the filter-processed operation status value and the corresponding non-filter-processed operation status value so as to calculate two or more operation status value differences. An operation status value difference normalization unit normalizes the two or more operation status value differences, based on predetermined reference values for the two or more operation status values, so as to calculate two or more normalized operation status value differences; and a transient correction unit corrects a control amount for controlling output of the internal combustion engine, based thereon, when the engine is in a transient-operation mode.
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公开(公告)号：US20100174472A1
公开(公告)日：2010-07-08
申请号：US12496189
申请日：2009-07-01
IPC分类号： F02D41/00
CPC分类号： G01L23/225 , F02D35/027 , F02D2041/286 , F02D2041/288 , F02P5/152 , Y02T10/46
摘要： A knock control apparatus includes: a knock sensor for detecting knock of an internal combustion engine; a signal processing section for calculating a knock intensity; and knock determination level setting sections: for calculating an average value of the knock intensity; for calculating, based on the average value, an overall variance of the knock intensity of an entirety of a frequency distribution, a higher variance of the knock intensity above the average value, and a lower variance of the knock intensity below the average value; for calculating a standard deviation of the knock intensity from the overall variance; for presetting a value allowing the frequency distribution of the knock intensity to be a predetermined confidence interval as a confidence coefficient; and for setting a sum of the average value and a value obtained by multiplying the standard deviation by the corrected confidence coefficient as a knock determination level.
摘要翻译： 爆震控制装置包括：用于检测内燃机的爆震的爆震传感器; 用于计算爆震强度的信号处理部分; 爆震判定等级设定部分：计算爆震强度的平均值; 用于基于平均值计算整个频率分布的敲击强度的总体方差，高于平均值的爆震强度的较高方差和低于平均值的爆震强度的较低方差; 用于计算爆震强度与总方差的标准偏差; 用于将允许爆震强度的频率分布设定为预定置信区间的值作为置信系数; 并且通过将标准偏差乘以校正的置信系数作为爆震判定水平来设置平均值和值。
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公开(公告)号：US08392094B2
公开(公告)日：2013-03-05
申请号：US12965329
申请日：2010-12-10
CPC分类号： F02D35/021 , F02D13/0234 , F02D13/0238 , F02D35/027 , F02D35/028 , F02D41/0002 , F02D41/22 , F02D2041/001 , F02D2041/227 , G01M15/11 , Y02T10/40
摘要： A control apparatus for an internal combustion engine includes: an abnormal combustion detection unit for detecting an abnormal combustion due to self-ignition occurring; a pre-ignition determination unit for detecting abnormal combustion occurrence timing based on abnormal combustion detection information to determine whether or not the abnormal combustion is the pre-ignition based on comparison between pre-ignition determination timing and the abnormal combustion occurrence timing; a heat-source pre-ignition determination unit for determining whether the pre-ignition is the heat-source pre-ignition or the compression pre-ignition based on comparison between the abnormal combustion occurrence timing set by the pre-ignition determination timing and heat-source pre-ignition determination timing; a first avoidance unit for avoiding the heat-source pre-ignition in a case where the pre-ignition is determined as the heat-source pre-ignition; and a second avoidance unit for avoiding the compression pre-ignition in a case where the pre-ignition is determined as the compression pre-ignition.
摘要翻译： 一种用于内燃机的控制设备包括：异常燃烧检测单元，用于检测由于自点火发生的异常燃烧; 预燃点确定单元，用于基于异常燃烧检测信息检测异常燃烧发生定时，以基于预燃点确定时刻和异常燃烧发生定时之间的比较来确定异常燃烧是否是点火前的; 基于通过预先点火判定时刻设定的异常燃烧发生时刻与热点预测时刻之间的比较来判定预热点是否为热源预点火或压缩预点火的热源预先点火判定单元， 源点火确定时机; 在预先点火被确定为热源预点火的情况下避免热源预点火的第一回避单元; 以及在预先点火被确定为压缩预点火的情况下避免压缩预点火的第二回避单元。
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公开(公告)号：US08316824B2
公开(公告)日：2012-11-27
申请号：US12906753
申请日：2010-10-18
IPC分类号： F02P5/00
CPC分类号： F02D41/0002 , F02D13/0226 , F02D13/0269 , F02D15/00 , F02D35/021 , F02D35/027 , F02D37/02 , F02D2041/001 , F02P5/152 , F02P17/12 , Y02T10/142 , Y02T10/42 , Y02T10/46
摘要： Control apparatus for an internal combustion engine including: a second knock detection unit for detecting occurrence of a second knock due to an effective compression ratio when ignition timing is on a retard side of a predetermined value in the case where a first knock is detected; a second knock suppression unit for suppressing the second knock when the second knock is detected; a first abnormal ignition detection means for detecting occurrence of first abnormal ignition due to the pre-ignition or the post-ignition when a knock intensity of the second knock is equal to or larger than a predetermined value; and a first abnormal ignition suppression unit for suppressing the first abnormal ignition by performing fuel control for the internal combustion engine when the first abnormal ignition is detected.
摘要翻译： 一种用于内燃机的控制装置，包括：第二爆震检测单元，用于在检测到第一次敲击的情况下，当点火正时处于预定值的延迟侧时，检测由于有效压缩比导致的第二次敲击的发生; 第二敲击抑制单元，用于当检测到第二次敲击时抑制第二次敲击; 第一异常点火检测装置，用于当第二次敲击的爆震强度等于或大于预定值时，检测由于点火前或点火后发生的第一异常点火; 以及第一异常点火抑制单元，用于当检测到第一异常点火时，通过对内燃机执行燃料控制来抑制第一异常点火。
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公开(公告)号：US08965666B2
公开(公告)日：2015-02-24
申请号：US13238113
申请日：2011-09-21
CPC分类号： F02P5/152 , F02D35/027 , F02D41/2416 , F02D2041/288 , Y02T10/46
摘要： A knock control device is provided in which erroneous knock detection can be reduced by suppressing sudden knock signal changes due to noise, without causing any increase in the number of matching steps, deterioration in the S/N in knock detection and decrease in detection performing frequency. In the knock control device, an open gain is applied to the detected signal only during a knock detection window set in advance by a knock window setting means. The window corresponds to a period in which vibration due to knock arises. During other periods, either a closed gain or an interpolated gain value is applied to the detected signal.
摘要翻译： 提供了一种爆震控制装置，其中可以通过抑制由于噪声引起的突发爆震信号变化而降低错误的爆震检测，而不会引起匹配步骤的数量的任何增加，爆震检测中的S / N的恶化和检测执行频率的降低 。 在爆震控制装置中，仅在由敲门窗设定装置预先设定的爆震检测窗口期间，对检测信号施加开放增益。 窗口对应于产生敲击振动的时段。 在其他时段期间，将闭合增益或内插增益值应用于检测到的信号。
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公开(公告)号：US08635005B2
公开(公告)日：2014-01-21
申请号：US13445241
申请日：2012-04-12
IPC分类号： F02P5/152
CPC分类号： F02D41/22 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/0087 , F02D41/1401 , F02D2041/1422 , F02D2041/1432 , F02D2041/227 , F02D2041/286 , F02P5/152 , Y02T10/42 , Y02T10/46
摘要： A control device of an internal combustion engine includes a filter processing portion which performs a filter processing on the vibration level extracted by the vibration level extraction portion, and calculates a vibration level after the filter processing; and an abnormal ignition suppression control portion which compares the vibration level after the filter processing to the abnormal ignition determination value when a retard correction equal to or greater than a predetermined value is performed by the knock control portion, in a case where it is determined that the vibration level after the filter processing is equal to or greater than the abnormal ignition determination value, determines that the abnormal ignition is generated in the internal combustion engine, corrects and controls the combustion control portion in a direction of suppressing the abnormal ignition.
摘要翻译： 内燃机的控制装置具备：滤波处理部，对由振动级别提取部提取的振动级进行滤波处理，算出滤波处理后的振动水平; 以及异常点火抑制控制部，其在通过所述爆震控制部进行所述爆震控制部的延迟校正以上时，将所述滤波处理后的振动水平与所述异常点火判定值进行比较，在判定为 过滤处理后的振动水平等于或大于异常点火判定值，判断为在内燃机中产生异常点火，对燃烧控制部的异常点火方向进行修正控制。
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公开(公告)号：US08924135B2
公开(公告)日：2014-12-30
申请号：US13612179
申请日：2012-09-12
申请人： Takahiko Ono , Yuhei Matsushima , Keitaro Ezumi , Tomokuni Kusunoki , Atsushi Inoue , Hiroki Morimoto
发明人： Takahiko Ono , Yuhei Matsushima , Keitaro Ezumi , Tomokuni Kusunoki , Atsushi Inoue , Hiroki Morimoto
IPC分类号： G06F19/00
CPC分类号： F02P5/152 , F02D41/222 , F02D2041/1432 , F02P5/1523 , Y02T10/46
摘要： There are provided a combustion start determination unit that determines whether or not the inner-cylinder state of an internal combustion engine has changed from a non-combustion state to a combustion state; and a filter coefficient changing demand unit that outputs a filter coefficient changing demand until a predetermined filter coefficient changing period elapses from the time instant when the combustion start determination unit determines that the inner-cylinder state of the internal combustion engine has changed from the non-combustion state to the combustion state to the time instant. Based on the filter coefficient changing demand, at least one of a background level calculation unit and a standard deviation calculation unit changes the value of a filter coefficient utilized in a filtering operation to the one with which a filtering effect is weakened.
摘要翻译： 提供了一种燃烧开始确定单元，其确定内燃机的内缸状态是否已经从非燃烧状态变为燃烧状态; 以及滤波器系数变更要求单元，其从燃烧开始判定单元判断出内燃机的内侧气缸状态从非燃烧状态发生变化的时刻到期间经过了规定的过滤器系数变更期间， 燃烧状态到燃烧状态到时刻。 基于滤波器系数变化要求，背景等级计算单元和标准差计算单元中的至少一个将滤波操作中使用的滤波器系数的值改变为滤波效果弱化的滤波器系数的值。
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