公开(公告)号：US07438046B2

公开(公告)日：2008-10-21

申请号：US11642944

申请日：2006-12-21

申请人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki

发明人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki

IPC分类号： F02D13/04 ,  F01L1/00

CPC分类号： F02D13/0207 ,  F01L1/20 ,  F01L1/34 ,  F01L13/0063 ,  F01L2800/14 ,  F01L2820/043 ,  F02D35/023 ,  F02D2200/025 ,  Y02T10/18

摘要： A failure detection apparatus for preventing erroneous detection due to a degradation of a sensor and thereby accurately performing failure detection of a variable valve timing and lift control system is provided. The detection apparatus detects a failure of a variable valve timing and lift control system in an engine. The detection apparatus detects a vibration inside an engine cylinder, extracts the component of seating sound of the valve from the output signal of the sensor, determines an actual seating time of said valve from the component of seating sound, and calculates a target seating time of said valve based on at least one of a requested lift amount, a requested advance angle, and a requested open angle depending on the operating conditions. The detecting apparatus corrects the actual seating time for a stationary deviation between the actual seating time and the target seating time caused by degradation or unevenness of the sensor. The detecting apparatus determines a failure of the variable valve timing and lift control system by comparing the corrected actual seating time with the target seating time.

摘要翻译： 提供一种故障检测装置，用于防止由于传感器的劣化导致的错误检测，从而准确地执行可变气门正时和升程控制系统的故障检测。 检测装置检测发动机中的可变气门正时和升程控制系统的故障。 检测装置检测发动机气缸内的振动，从传感器的输出信号中提取阀的座位声音的分量，根据座位声音的分量确定所述阀的实际就座时间，并计算目标就座时间 基于所述操作条件，所述阀基于所请求的提升量，请求的提前角和所请求的开启角中的至少一个。 检测装置校正由于传感器的劣化或不均匀性引起的实际就座时间和目标就座时间之间的固定偏差的实际就座时间。 检测装置通过将校正的实际就座时间与目标就座时间进行比较来确定可变气门正时和升程控制系统的故障。

公开(公告)号：US20090132144A1

公开(公告)日：2009-05-21

申请号：US11665054

申请日：2005-09-29

申请人： Koichiro Shinozaki ,  Yuji Yasui ,  Katsura Okubo ,  Masahiro Sato

发明人： Koichiro Shinozaki ,  Yuji Yasui ,  Katsura Okubo ,  Masahiro Sato

IPC分类号： F02D45/00 ,  G01M15/08 ,  F02D15/02

CPC分类号： F02D35/023 ,  F02D15/02 ,  F02D41/1497 ,  F02D2041/288

摘要： Work done by an engine can be accurately calculated regardless of the part in an observation section where the cylinder internal pressure signal is detected. The apparatus for calculating the work done by an engine establishes in advance correlation of phase between the cylinder internal pressure of the engine and a reference signal composed of a predetermined frequency component as a reference phase relation. A means for detecting the cylinder internal pressure of the engine for a predetermined observation section is provided. A reference signal corresponding to the detected cylinder internal pressure of the engine is calculated so that the reference phase relation is satisfied. A correlation coefficient of the detected cylinder internal pressure of the engine and the calculated reference signal is calculated for the observation section and the work done by the engine is calculated in accordance with the correlation coefficient.

摘要翻译： 无论检测到气缸内部压力信号的观察部分中的部分如何，都可以精确地计算发动机的作业。 用于计算由发动机完成的作业的装置预先将发动机的气缸内部压力与由预定频率分量组成的参考信号之间的相位相关，作为参考相位关系。 提供了一种用于检测用于预定观察部分的发动机的气缸内部压力的装置。 计算与检测到的发动机气缸内部压力相对应的参考信号，使得满足基准相位关系。 对于观测部分计算检测到的发动机气缸内部压力和计算出的参考信号的相关系数，并根据相关系数计算发动机完成的功率。

公开(公告)号：US20080294323A1

公开(公告)日：2008-11-27

申请号：US11663811

申请日：2005-09-28

申请人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichi Ikoma

发明人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichi Ikoma

IPC分类号： F02D45/00 ,  F02D15/02

CPC分类号： F02D15/02 ,  F02D35/023 ,  F02D2041/288 ,  F02D2200/1004 ,  F02D2250/12 ,  G01L5/0095 ,  G01L23/225

摘要： A device and method for calculating the work load of an engine more efficiently and accurately. The device for calculating the work load of an engine comprises a means for determining a desired frequency component to calculate the work load of the engine obtained through frequency decomposition of the volume variation rate of the engine. The device further comprises a first calculating means for calculating a first correlation coefficient between the volume variation rate and a reference signal composed of a frequency corresponding to the determined component, and a second calculating means for calculating a second correlation coefficient between the cylinder inner pressure of the engine and a reference signal composed of a frequency corresponding to the determined component. The work load of the engine is calculated using the first and second correlation coefficients.

摘要翻译： 一种用于更有效和准确地计算发动机的工作负荷的装置和方法。 用于计算发动机的工作负荷的装置包括用于确定期望频率分量以计算通过对发动机的体积变化率进行频率分解获得的发动机的工作负荷的装置。 该装置还包括：第一计算装置，用于计算体积变化率与由所确定的分量相对应的频率组成的参考信号之间的第一相关系数;以及第二计算装置，用于计算第二相关系数， 发动机和由对应于确定的部件的频率组成的参考信号。 使用第一和第二相关系数来计算发动机的工作负荷。

公开(公告)号：US07299680B2

公开(公告)日：2007-11-27

申请号：US11268729

申请日：2005-11-08

申请人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki ,  Kosuke Higashitani

发明人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki ,  Kosuke Higashitani

IPC分类号： G01L23/22 ,  F02P5/00 ,  G06F19/00

CPC分类号： G01L23/225

摘要： An in-cylinder pressure sensor for outputting a signal corresponding to an internal cylinder pressure of an engine is provided. A first signal and a second signal are extracted from the output signal of the in-cylinder pressure sensor. The first signal has a frequency band corresponding to knocking of the engine. The second signal has a frequency band used for detecting a peak of the internal cylinder pressure. A knocking detection period is set based on the second signal. The first signal in the knocking detection period is examined to determine whether or not knocking has occurred.

摘要翻译： 提供了用于输出与发动机的内部气缸压力相对应的信号的缸内压力传感器。 从缸内压力传感器的输出信号中提取第一信号和第二信号。 第一信号具有对应于发动机爆震的频带。 第二信号具有用于检测内部气缸压力的峰值的频带。 基于第二信号设定爆震检测期间。 检查爆震检测期间的第一信号以确定是否发生了敲击。

公开(公告)号：US20060030999A1

公开(公告)日：2006-02-09

申请号：US11194441

申请日：2005-08-02

申请人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato

发明人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato

IPC分类号： G06F19/00

CPC分类号： G01L3/245 ,  G01M15/044 ,  G01M15/08

摘要： A method of calculating the amount of work done by an internal combustion engine, which is capable of calculating a work amount parameter indicative of the amount of work done with accuracy while compensating for a phase delay in in-cylinder pressure data caused e.g. by a filtering process performed thereon. The method calculates the work amount parameter Pmi indicative of the amount of work done by the engine 3 including a combustion chamber 3b, as follows: Pressure in the combustion chamber 3b is detected to obtain in-cylinder pressure data P indicative of the detected pressure. Volume data V indicative of a state of change in volume of the combustion chamber 3b is obtained. The obtained volume data V is subjected to a first predetermined filtering process. The work amount parameter Pmi is calculated based on the detected in-cylinder pressure data P, and the volume data filtered value VF obtained by subjecting the volume data V to the first filtering process.

摘要翻译： 一种计算内燃机完成的工作量的方法，其能够在补偿例如气缸内压力数据的相位延迟的补偿的同时，计算表示精度完成量的工作量参数。 通过其上执行的过滤处理。 该方法计算表示包括燃烧室3b的发动机3的作业量的作业量参数P MIN，其如下：检测燃烧室3b中的压力， 指示检测到的压力的气缸压力数据P. 获得表示燃烧室3b的体积变化状态的体积数据V. 所获得的体积数据V经受第一预定过滤处理。 基于检测到的缸内压力数据P和通过对体积数据V进行第一过滤处理而获得的体积数据过滤值VF来计算工作量参数P＆lt; mi＆gt;。

公开(公告)号：US07757545B2

公开(公告)日：2010-07-20

申请号：US11597037

申请日：2005-05-18

申请人： Masahiro Sato ,  Katsura Okubo ,  Koichiro Shinozaki ,  Yuji Yasui ,  Keiichi Nagashima

发明人： Masahiro Sato ,  Katsura Okubo ,  Koichiro Shinozaki ,  Yuji Yasui ,  Keiichi Nagashima

IPC分类号： G06F19/00

CPC分类号： F02D41/222 ,  F02D35/023 ,  G01L23/225 ,  G01L27/005 ,  G01L27/007 ,  Y02T10/40

摘要： A device and a method for determining the trouble of a cylinder pressure sensor without increasing cost calculates the cylinder pressure of an internal combustion engine based on an output from the cylinder sensor installed in the engine and calculates a drift parameter indicating the drift amount of the cylinder pressure based on the cylinder pressure. When the drift parameter is not within a specified range, the device determines that the cylinder pressure sensor is defective. The specified range can be set based on the behavior of the cylinder pressure. A correction factor is obtained according to the operating state of the engine, and the drift parameter is corrected with the correction factor. A specified search signal is superimposed on the output from the cylinder pressure sensor. The cylinder pressure is calculated based on the output from the cylinder pressure sensor on which the search signal was superimposed.

摘要翻译： 用于在不增加成本的情况下确定气缸压力传感器的故障的装置和方法基于安装在发动机中的气缸传感器的输出来计算内燃机的气缸压力，并计算指示气缸的漂移量的漂移参数 基于气缸压力的压力。 当漂移参数不在指定范围内时，设备确定气缸压力传感器有故障。 可以根据气缸压力的行为来设定指定的范围。 根据发动机的运行状态得到校正系数，校正系数校正漂移参数。 指定的搜索信号叠加在气缸压力传感器的输出上。 气缸压力基于叠加有搜索信号的气缸压力传感器的输出计算。

公开(公告)号：US07398150B2

公开(公告)日：2008-07-08

申请号：US11194441

申请日：2005-08-02

申请人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato

发明人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato

IPC分类号： G01M15/00

CPC分类号： G01L3/245 ,  G01M15/044 ,  G01M15/08

摘要： A method of calculating the amount of work done by an internal combustion engine, which is capable of calculating a work amount parameter indicative of the amount of work done with accuracy while compensating for a phase delay in in-cylinder pressure data caused e.g. by a filtering process performed thereon. The method calculates the work amount parameter Pmi indicative of the amount of work done by the engine 3 including a combustion chamber 3b, as follows: Pressure in the combustion chamber 3b is detected to obtain in-cylinder pressure data P indicative of the detected pressure. Volume data V indicative of a state of change in volume of the combustion chamber 3b is obtained. The obtained volume data V is subjected to a first predetermined filtering process. The work amount parameter Pmi is calculated based on the detected in-cylinder pressure data P, and the volume data filtered value VF obtained by subjecting the volume data V to the first filtering process.

摘要翻译： 一种计算内燃机完成的工作量的方法，其能够在补偿例如气缸内压力数据的相位延迟的补偿的同时，计算表示精度完成量的工作量参数。 通过其上执行的过滤处理。 该方法计算表示包括燃烧室3b的发动机3的作业量的作业量参数P MIN，其如下：检测燃烧室3b中的压力， 指示检测到的压力的气缸压力数据P. 获得表示燃烧室3b的体积变化状态的体积数据V. 所获得的体积数据V经受第一预定过滤处理。 基于检测到的缸内压力数据P和通过对体积数据V进行第一过滤处理而获得的体积数据过滤值VF来计算工作量参数P＆lt; mi＆gt;。

公开(公告)号：US20070239343A1

公开(公告)日：2007-10-11

申请号：US11642944

申请日：2006-12-21

申请人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki

发明人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki

IPC分类号： F02D28/00

CPC分类号： F02D13/0207 ,  F01L1/20 ,  F01L1/34 ,  F01L13/0063 ,  F01L2800/14 ,  F01L2820/043 ,  F02D35/023 ,  F02D2200/025 ,  Y02T10/18

摘要： A failure detection apparatus for preventing erroneous detection due to a degradation of a sensor and thereby accurately performing failure detection of a variable valve timing and lift control system is provided. The detection apparatus detects a failure of a variable valve timing and lift control system in an engine. The detection apparatus detects a vibration inside an engine cylinder, extracts the component of seating sound of the valve from the output signal of the sensor, determines an actual seating time of said valve from the component of seating sound, and calculates a target seating time of said valve based on at least one of a requested lift amount, a requested advance angle, and a requested open angle depending on the operating conditions. The detecting apparatus corrects the actual seating time for a stationary deviation between the actual seating time and the target seating time caused by degradation or unevenness of the sensor. The detecting apparatus determines a failure of the variable valve timing and lift control system by comparing the corrected actual seating time with the target seating time.

摘要翻译： 提供一种故障检测装置，用于防止由于传感器的劣化导致的错误检测，从而准确地执行可变气门正时和升程控制系统的故障检测。 检测装置检测发动机中的可变气门正时和升程控制系统的故障。 检测装置检测发动机气缸内的振动，从传感器的输出信号中提取阀的座位声音的分量，根据座位声音的分量确定所述阀的实际就座时间，并计算目标就座时间 基于所述操作条件，所述阀基于所请求的提升量，请求的提前角和所请求的开启角中的至少一个。 检测装置校正由于传感器的劣化或不均匀性引起的实际就座时间和目标就座时间之间的固定偏差的实际就座时间。 检测装置通过将校正的实际就座时间与目标就座时间进行比较来确定可变气门正时和升程控制系统的故障。

公开(公告)号：US07647155B2

公开(公告)日：2010-01-12

申请号：US11663811

申请日：2005-09-28

申请人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichi Ikoma

发明人： Koichiro Shinozaki ,  Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichi Ikoma

IPC分类号： F02D45/00 ,  F02D15/02 ,  G01M15/00

CPC分类号： F02D15/02 ,  F02D35/023 ,  F02D2041/288 ,  F02D2200/1004 ,  F02D2250/12 ,  G01L5/0095 ,  G01L23/225

摘要： A device and method for calculating the work load of an engine more efficiently and accurately. The device for calculating the work load of an engine comprises a means for determining a desired frequency component to calculate the work load of the engine obtained through frequency decomposition of the volume variation rate of the engine. The device further comprises a first calculating means for calculating a first correlation coefficient between the volume variation rate and a reference signal composed of a frequency corresponding to the determined component, and a second calculating means for calculating a second correlation coefficient between the cylinder inner pressure of the engine and a reference signal composed of a frequency corresponding to the determined component. The work load of the engine is calculated using the first and second correlation coefficients.

摘要翻译： 一种用于更有效和准确地计算发动机的工作负荷的装置和方法。 用于计算发动机的工作负荷的装置包括用于确定期望频率分量以计算通过对发动机的体积变化率进行频率分解获得的发动机的工作负荷的装置。 该装置还包括：第一计算装置，用于计算体积变化率与由所确定的分量相对应的频率组成的参考信号之间的第一相关系数;以及第二计算装置，用于计算第二相关系数， 发动机和由对应于确定的部件的频率组成的参考信号。 使用第一和第二相关系数来计算发动机的工作负荷。

公开(公告)号：US07212912B2

公开(公告)日：2007-05-01

申请号：US11268718

申请日：2005-11-08

申请人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki

发明人： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki

IPC分类号： G01M15/00 ,  F02D45/00

CPC分类号： G01L23/225

摘要： An in-cylinder pressure sensor outputs a signal corresponding to a change rate of an internal cylinder pressure of an engine. The output signal of the in-cylinder pressure sensor is filtered so that frequency components lower than frequencies that substantially compose an internal cylinder pressure required for controlling the engine are cut. The filtered output signal is integrated to determine the internal cylinder pressure. Thus, an internal cylinder pressure having no drift can be determined.

摘要翻译： 缸内压力传感器输出与发动机的内部气缸压力的变化率对应的信号。 缸内压力传感器的输出信号被过滤，使得低于实质上构成用于控制发动机所需的内部气缸压力的频率的频率分量被切断。 滤波的输出信号被积分以确定内部气缸压力。 因此，可以确定没有漂移的内部气缸压力。