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1. 发明授权

US07536902B2 Misfire detecting apparatus for internal combustion engine 有权
标题翻译：内燃机失火检测装置
公开(公告)号：US07536902B2
公开(公告)日：2009-05-26
申请号：US11637883
申请日：2006-12-13
申请人： Toshinori Tsukamoto , Mahito Shikama
发明人： Toshinori Tsukamoto , Mahito Shikama
IPC分类号： G01M15/00
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for an internal combustion engine wherein a rotational speed parameter according to a rotational speed of the engine is detected. A reference value of the rotational speed parameter is then calculated. Next, a difference between the reference value and a rotational speed parameter detected at every predetermined crank angle as a relative speed parameter is calculated. Further, an integrated value of the relative speed parameter is calculated, and a misfire determination is performed based on the calculated integrated value.
摘要翻译：一种用于内燃机的失火检测装置，其中检测到根据发动机转速的转速参数。然后计算转速参数的参考值。接下来，计算基准值与在每个预定曲轴角度检测的转速参数之间的差作为相对速度参数。此外，计算相对速度参数的积分值，并且基于所计算的积分值执行失火判定。

2. 发明申请

US20080098806A1 Angular speed detecting apparatus for crankshaft of internal combustion engine 有权
标题翻译：内燃机曲轴角速度检测装置
公开(公告)号：US20080098806A1
公开(公告)日：2008-05-01
申请号：US11897000
申请日：2007-09-07
申请人： Mahito Shikama , Toshinori Tsukamoto
发明人： Mahito Shikama , Toshinori Tsukamoto
IPC分类号： G01P3/44
CPC分类号： F02D41/0097 , F02D41/2451 , G01P3/489
摘要： An angular speed detecting apparatus for a crankshaft of an internal combustion engine. The angular speed detecting apparatus detects a rotational angular speed of the crankshaft based on an output of a pulse generator which generates a crank pulse at every predetermined rotational angle of the crankshaft. An average value of a speed parameter indicating a rotational angular speed of the crankshaft is calculated using the data sampled at intervals of 720/N degrees where N is a number of cylinders of the engine. A learning correction coefficient for correcting the speed parameter is calculated according to the average value. The speed parameter is corrected using the learning correction coefficient.
摘要翻译：一种用于内燃机的曲轴的角速度检测装置。角速度检测装置基于在曲轴的每个预定旋转角度产生曲柄脉冲的脉冲发生器的输出来检测曲轴的旋转角速度。使用以N =发动机的气缸数的720 / N度的间隔采样的数据来计算表示曲轴的旋转角速度的速度参数的平均值。根据平均值计算用于校正速度参数的学习校正系数。使用学习校正系数校正速度参数。

3. 发明授权

US07614290B2 Angular speed detecting apparatus for crankshaft of internal combustion engine 有权
标题翻译：内燃机曲轴角速度检测装置
公开(公告)号：US07614290B2
公开(公告)日：2009-11-10
申请号：US11897000
申请日：2007-09-07
申请人： Mahito Shikama , Toshinori Tsukamoto
发明人： Mahito Shikama , Toshinori Tsukamoto
IPC分类号： G01P3/44
CPC分类号： F02D41/0097 , F02D41/2451 , G01P3/489
摘要： An angular speed detecting apparatus for a crankshaft of an internal combustion engine. The angular speed detecting apparatus detects a rotational angular speed of the crankshaft based on an output of a pulse generator which generates a crank pulse at every predetermined rotational angle of the crankshaft. An average value of a speed parameter indicating a rotational angular speed of the crankshaft is calculated using the data sampled at intervals of 720/N degrees where N is a number of cylinders of the engine. A learning correction coefficient for correcting the speed parameter is calculated according to the average value. The speed parameter is corrected using the learning correction coefficient.
摘要翻译：一种用于内燃机的曲轴的角速度检测装置。角速度检测装置基于在曲轴的每个预定旋转角度产生曲柄脉冲的脉冲发生器的输出来检测曲轴的旋转角速度。使用以N =发动机的气缸数的720 / N度的间隔采样的数据来计算表示曲轴的旋转角速度的速度参数的平均值。根据平均值计算用于校正速度参数的学习校正系数。使用学习校正系数校正速度参数。

4. 发明授权

US07480591B2 Misfire detecting apparatus for internal combustion engine 有权
标题翻译：内燃机失火检测装置
公开(公告)号：US07480591B2
公开(公告)日：2009-01-20
申请号：US11898235
申请日：2007-09-11
申请人： Mahito Shikama , Toshinori Tsukamoto
发明人： Mahito Shikama , Toshinori Tsukamoto
IPC分类号： G06F11/30 , G06F15/00
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for detecting a misfire of an internal combustion engine based on a detected rotational speed parameter. A moving averaging calculation is performed with respect to data of the detected rotational speed parameter to calculate an averaged speed parameter, a number of the data being equal to a sampling number NTDC. A reference value of the averaged speed parameter and a relative speed parameter are calculated. The relative speed parameter is a deviation of the averaged speed parameter detected at every predetermined crank angle from the reference value. An integrated value of the relative speed parameter is calculated and a misfire determination is performed based on the integrated value. The sampling number (NTDC) is determined by an equation: NTDC=720/(N×Dθ) where (N) is a number of cylinders and (Dθ) is a sampling angular period (degree) of the rotational speed parameter.
摘要翻译：一种用于基于检测到的转速参数来检测内燃机的失火的失火检测装置。对所检测的转速参数的数据执行移动平均计算，以计算平均速度参数，数据的数量等于采样数NTDC。计算平均速度参数和相对速度参数的参考值。相对速度参数是在每个预定曲轴角度处检测到的平均速度参数与参考值的偏差。计算相对速度参数的积分值，并基于积分值执行失火判定。采样数（NTDC）由以下等式确定：<？in-line-formula description =“In-line Formulas”end =“lead”？> NTDC = 720 /（NxDtheta）<？in-line-formula description = “直列公式”end =“tail”？>其中（N）是气缸数，（Dθ）是旋转速度参数的采样角度周期（度）。

5. 发明申请

US20070157713A1 Misfire detecting apparatus for internal combustion engine 有权
标题翻译：内燃机失火检测装置
公开(公告)号：US20070157713A1
公开(公告)日：2007-07-12
申请号：US11637883
申请日：2006-12-13
申请人： Toshinori Tsukamoto , Mahito Shikama
发明人： Toshinori Tsukamoto , Mahito Shikama
IPC分类号： G01L3/26
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for an internal combustion engine wherein a rotational speed parameter according to a rotational speed of the engine is detected. A reference value of the rotational speed parameter is then calculated. Next, a difference between the reference value and a rotational speed parameter detected at every predetermined crank angle as a relative speed parameter is calculated. Further, an integrated value of the relative speed parameter is calculated, and a misfire determination is performed based on the calculated integrated value.
摘要翻译：一种用于内燃机的失火检测装置，其中检测到根据发动机的转速的转速参数。然后计算转速参数的参考值。接下来，计算基准值与在每个预定曲轴角度检测的转速参数之间的差作为相对速度参数。此外，计算相对速度参数的积分值，并且基于所计算的积分值执行失火判定。

6. 发明授权

US07877192B2 Control for an internal-combustion engine 有权
标题翻译：内燃机控制
公开(公告)号：US07877192B2
公开(公告)日：2011-01-25
申请号：US12222790
申请日：2008-08-15
申请人： Mahito Shikama , Toshinori Tsukamoto , Hiroyuki Ando , Hideharu Takamiya , Toshifumi Hiraboshi
发明人： Mahito Shikama , Toshinori Tsukamoto , Hiroyuki Ando , Hideharu Takamiya , Toshifumi Hiraboshi
IPC分类号： G06F19/00 , G06G7/70
CPC分类号： F02D41/0097 , F02D13/0226 , F02D41/0085 , F02D41/1498 , Y02T10/18
摘要： A rotational speed parameter is detected in accordance with a rotational speed of the engine. A reference value of the rotational speed parameter is calculated. For each cylinder, an error between the reference value and the rotational speed parameter detected every predetermined crank angle is calculated as a relative speed parameter. For each cylinder, an integrated value is calculated by integrating the relative speed parameters over a predetermined period. For each cylinder, an average value per cylinder of the sum of the integrated values of all the cylinders is calculated. For each cylinder, an error between the integrated value of the cylinder and the average value is calculated. For each cylinder, the output of the engine is controlled in accordance with the error calculated for the cylinder such that variations in the output between the cylinders are suppressed.
摘要翻译：根据发动机的转速来检测转速参数。计算转速参数的基准值。对于每个气缸，计算每个预定曲轴角度的参考值和旋转速度参数之间的误差作为相对速度参数。对于每个气缸，通过在预定时间段内积分相对速度参数来计算积分值。对于每个气缸，计算所有气缸的积分值之和的每缸的平均值。对于每个气缸，计算气缸的积分值与平均值之间的误差。对于每个气缸，根据针对气缸计算的误差来控制发动机的输出，从而抑制气缸之间输出的变化。

7. 发明申请

US20080103681A1 Misfire detecting apparatus for internal combustion engine 有权
标题翻译：内燃机失火检测装置
公开(公告)号：US20080103681A1
公开(公告)日：2008-05-01
申请号：US11898235
申请日：2007-09-11
申请人： Mahito Shikama , Toshinori Tsukamoto
发明人： Mahito Shikama , Toshinori Tsukamoto
IPC分类号： G06G7/70
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for detecting a misfire of an internal combustion engine based on a detected rotational speed parameter. A moving averaging calculation is performed with respect to data of the detected rotational speed parameter to calculate an averaged speed parameter, a number of the data being equal to a sampling number NTDC. A reference value of the averaged speed parameter and a relative speed parameter are calculated. The relative speed parameter is a deviation of the averaged speed parameter detected at every predetermined crank angle from the reference value. An integrated value of the relative speed parameter is calculated and a misfire determination is performed based on the integrated value. The sampling number (NTDC) is determined by an equation: NTDC=720/(N×Dθ) where (N) is a number of cylinders and (Dθ) is a sampling angular period (degree) of the rotational speed parameter.
摘要翻译：一种用于基于检测到的转速参数来检测内燃机的失火的失火检测装置。对所检测的转速参数的数据执行移动平均计算，以计算平均速度参数，数据的数量等于采样数NTDC。计算平均速度参数和相对速度参数的参考值。相对速度参数是在每个预定曲轴角度处检测到的平均速度参数与参考值的偏差。计算相对速度参数的积分值，并基于积分值执行失火判定。采样数（NTDC）由以下等式确定：<？in-line-formula description =“In-line Formulas”end =“lead”？> NTDC = 720 /（NxDtheta）<？in-line-formula description = “直列公式”end =“tail”？>其中（N）是气缸数，（Dθ）是旋转速度参数的采样角度周期（度）。

8. 发明申请

US20140007664A1 METHOD AND APPARATUS FOR DIAGNOSING ENGINE FAULT 有权
标题翻译：用于诊断发动机故障的方法和装置
公开(公告)号：US20140007664A1
公开(公告)日：2014-01-09
申请号：US14006446
申请日：2012-02-24
申请人： Hiroshi Ito , Takayuki Abe , Tetsuya Ohno , Mahito Shikama
发明人： Hiroshi Ito , Takayuki Abe , Tetsuya Ohno , Mahito Shikama
IPC分类号： G01M15/11
CPC分类号： G01M15/11 , F02D41/123 , F02D41/1498 , F02D41/22 , F02D2200/021 , F02D2200/023 , F02D2200/1015 , F02D2200/503 , G01M15/046
摘要： According to a method and an apparatus of the present invention for diagnosing a fault of an engine, a cranking rotation state is created by rotating a crank shaft while explosions in each cylinder are stopped; a variation of angular velocity of the crank shaft is detected for each cylinder in the cranking rotation state; a cylinder the compression pressure of which is insufficient is detected based on the variation; and if a cylinder indicated as a misfiring cylinder by a fault code is the same as the cylinder detected as being insufficient in compression pressure in the cranking rotation state, the cylinder is specified.
摘要翻译：根据本发明的用于诊断发动机故障的方法和装置，通过在每个气缸中的爆炸停止的同时旋转曲轴来产生起动旋转状态; 在起动旋转状态下，针对每个气缸检测曲柄轴的角速度的变化; 基于该变化来检测压缩压力不足的气缸; 并且如果通过故障代码指示为失火气缸的气缸与在起动旋转状态下被检测为压缩压力不足的气缸相同，则指定气缸。

9. 发明授权

US08272367B2 Control system for internal combustion engine 失效
标题翻译：内燃机控制系统
公开(公告)号：US08272367B2
公开(公告)日：2012-09-25
申请号：US12527063
申请日：2008-04-30
申请人： Mahito Shikama , Ryuji Kohno , Eisei Yamazaki , Hidekazu Hironobu
发明人： Mahito Shikama , Ryuji Kohno , Eisei Yamazaki , Hidekazu Hironobu
IPC分类号： F02D41/10 , F02P5/15
CPC分类号： F02D41/10 , F02D11/105 , F02D41/1498 , F02D2041/141 , F02D2250/21
摘要： A control system for an internal combustion engine for driving a vehicle, which controls an output torque of the engine, is provided. In this control system, a rapid change in a demand torque of the engine is detected, and a feedforward correction amount is generated during a correction period which is substantially equal to a resonance period of a powertrain of the vehicle, from a time when the rapid change in the demand torque is detected. An output torque control amount of the engine is corrected with the feedforward correction amount. A torque change amount integrated value is calculated by integrating an amount of change in the demand torque, and the feedforward correction amount is generated according to the torque change amount integrated value.
摘要翻译：提供了一种用于驱动车辆的内燃机的控制系统，其控制发动机的输出转矩。在该控制系统中，检测到发动机的需求扭矩的急剧变化，并且在从快速的时间起，基本上等于车辆的动力总成的共振周期的校正期间产生前馈修正量检测到需求扭矩的变化。用前馈修正量校正发动机的输出转矩控制量。通过积分需求扭矩的变化量来计算转矩变化量积分值，并且根据转矩变化量积分值生成前馈校正量。

10. 发明申请

US20060179928A1 Failure diagnosis apparatus for evaporative fuel processing system 有权
标题翻译：蒸发燃料处理系统故障诊断装置
公开(公告)号：US20060179928A1
公开(公告)日：2006-08-17
申请号：US11346367
申请日：2006-02-03
申请人： Mahito Shikama , Koichi Yoshiki , Takashi Yamaguchi , Yosuke Kosaka
发明人： Mahito Shikama , Koichi Yoshiki , Takashi Yamaguchi , Yosuke Kosaka
IPC分类号： G01M19/00
CPC分类号： F02M25/0809
摘要： A failure diagnosis apparatus for diagnosing a failure of an evaporative fuel processing system. The system includes a fuel tank, a canister having adsorbent for adsorbing evaporative fuel generated in the fuel tank, an air passage connected to the canister for communicating the canister with the atmosphere, a first passage for connecting the canister and the fuel tank, a second passage for connecting the canister and an intake system of an internal combustion engine, and a purge control valve provided in the second passage. A pressure in the evaporative fuel processing system is detected. An opening of the purge control valve is controlled by changing a duty ratio of a drive signal which drives the purge control valve. First and second filterings of the detected pressure are performed. A second passing frequency band of the second filtering is narrower than a first passing frequency band of the first filtering. A flow rate abnormality of a purge gas flowing in the second passage is determined based on the filtered pressures.
摘要翻译：一种故障诊断装置，用于诊断蒸发燃料处理系统的故障。该系统包括燃料箱，具有用于吸附在燃料箱中产生的蒸发燃料的吸附剂的罐，连接到罐的空气通道，用于将罐与大气连通，用于连接罐和燃料箱的第一通道，第二用于连接罐和内燃机的进气系统的通道以及设置在第二通道中的净化控制阀。检测蒸发燃料处理系统中的压力。通过改变驱动清洗控制阀的驱动信号的占空比来控制清洗控制阀的打开。执行检测到的压力的第一和第二过滤。第二滤波的第二通过频带比第一滤波的第一通过频带窄。基于过滤的压力确定在第二通道中流动的吹扫气体的流量异常。

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