Control apparatus for internal combustion engine
    1.
    发明授权
    Control apparatus for internal combustion engine 有权
    内燃机控制装置

    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

    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。

    Internal combustion engine control apparatus

    公开(公告)号:US10197036B2

    公开(公告)日:2019-02-05

    申请号:US13290437

    申请日:2011-11-07

    IPC分类号: B60T7/12 F02P5/152 F02D35/02

    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.

    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制装置

    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

    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。

    Knock control apparatus for internal combustion engine
    4.
    发明授权
    Knock control apparatus for internal combustion engine 有权
    内燃机爆震控制装置

    公开(公告)号:US08949006B2

    公开(公告)日:2015-02-03

    申请号:US13251939

    申请日:2011-10-03

    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。

    Knock control apparatus for internal combustion engine
    5.
    发明授权
    Knock control apparatus for internal combustion engine 有权
    内燃机爆震控制装置

    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

    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。

    Control device of internal combustion engine
    6.
    发明授权
    Control device of internal combustion engine 有权
    内燃机控制装置

    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

    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。

    Control apparatus for an internal combustion engine
    7.
    发明授权
    Control apparatus for an internal combustion engine 有权
    一种用于内燃机的控制装置

    公开(公告)号:US08392094B2

    公开(公告)日:2013-03-05

    申请号:US12965329

    申请日:2010-12-10

    IPC分类号: F02D43/00 F02P5/152

    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。

    Control apparatus for internal combustion engine
    8.
    发明授权
    Control apparatus for internal combustion engine 有权
    内燃机控制装置

    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

    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。

    Estimation device for cylinder intake air amount and internal EGR rate in internal combustion engine
    9.
    发明授权
    Estimation device for cylinder intake air amount and internal EGR rate in internal combustion engine 有权
    汽油机进气量和内燃机内部EGR率的估算装置

    公开(公告)号:US09164011B2

    公开(公告)日:2015-10-20

    申请号:US13732864

    申请日:2013-01-02

    摘要: An estimation device for a cylinder intake air amount and an internal EGR rate in an internal combustion engine is provided which is capable of making an estimation with a high degree of accuracy in a small number of adaptation constants. The estimation device calculates a volumetric efficiency corresponding value and the internal EGR rate based on an exhaust efficiency (a linear function of intake pipe internal pressure) which is an index indicating an amount of residual gas which is an exhaust gas after combustion remaining in the cylinder without being discharged from the cylinder to an exhaust pipe, and an intake efficiency (a linear function of intake pipe internal pressure) which is an index indicating an amount of air coming into the cylinder from the intake pipe excluding the residual gas.

    摘要翻译: 提供了一种用于内燃机中的气缸进气量和内部EGR率的估计装置,其能够以少量的适应常数以高精度进行估计。 估计装置基于排气效率(进气管内压的线性函数)计算体积效率对应值和内部EGR率,该排气效率是表示在气缸中残留的燃烧后的废气残留气体的量的指标 不从气缸排出到排气管,以及作为表示从除了残留气体以外的进气管进入气缸的空气量的指标的进气效率(进气管内压的线性函数)。

    Control apparatus for an internal combustion engine
    10.
    发明授权
    Control apparatus for an internal combustion engine 有权
    一种用于内燃机的控制装置

    公开(公告)号:US07305967B1

    公开(公告)日:2007-12-11

    申请号:US11705427

    申请日:2007-02-13

    IPC分类号: F02D9/08 B60T7/12

    摘要: In throttle control, a throttle opening is set with sufficient control accuracy in accordance with the operating state of an engine despite variations in a throttle body and various kinds of sensors. A target effective opening area is calculated from a target amount of intake air, an atmospheric pressure, an intake pipe internal pressure and an intake air temperature by using a flow rate formula for a throttle type flow meter. A target throttle opening is calculated from a correlation map. An actual effective opening area is calculated from the amount of intake air, the atmospheric pressure, the intake pipe internal pressure, and the intake air temperature by using the above-mentioned flow rate formula, and a learning throttle opening is calculated from the correlation map. The target throttle opening is corrected by a throttle opening learning value calculated from a deviation between the target throttle opening and the learning throttle opening.

    摘要翻译: 在节气门控制中,尽管节气门体和各种传感器有变化,但是根据发动机的操作状态,节气门开度被设定为具有足够的控制精度。 通过使用节气门式流量计的流量公式,从进气的目标量,大气压,进气管内压和进气温度计算出目标有效开口面积。 从相关图计算目标节气门开度。 通过使用上述流量公式,根据进气量,大气压,进气管内压和进气温度计算实际有效开口面积,并根据相关图计算学习节气门开度 。 通过从目标节气门开度和学习节气门开度之间的偏差计算的节气门开度学习值来校正目标节气门开度。