公开(公告)号：US5704315A

公开(公告)日：1998-01-06

申请号：US694701

申请日：1996-08-09

申请人： Koji Tsuchida ,  Chikara Tanaka ,  Jiro Takagi ,  Hirokazu Ohsaki

发明人： Koji Tsuchida ,  Chikara Tanaka ,  Jiro Takagi ,  Hirokazu Ohsaki

IPC分类号： F01M1/06 ,  F01L1/04 ,  F01L1/053 ,  F01L1/18 ,  F01L1/26 ,  F01L13/00 ,  F01M9/10 ,  F01M11/02 ,  F02B75/22

CPC分类号： F01M9/108 ,  F01L1/053 ,  F01L1/267 ,  F01M9/107 ,  F02B75/22 ,  F01M11/02 ,  F01M9/102 ,  F02B2275/20

摘要： In an engine including a variable timing/lift mechanism for an intake valve, journal portions of a valve-operating cam shaft are supported on cam bearing portions integrally provided in a cylinder head, and an intake rocker shaft is fixed by bolts to rocker shaft fixing portions provided on an upper surface of the cam bearing portions. By bringing opposite sides of intake rocker arms swingably supported on the intake rocker shaft into slidable abutment against positioning faces integrally formed on opposite sides of the cam bearing portions, the intake rocker arms are positioned in a thrust direction. Thus, it is possible to accurately and easily position the intake rocker arms in the thrust direction without the need for a special member.

摘要翻译： 在包括用于进气阀的可变定时/提升机构的发动机中，阀操作凸轮轴的轴颈部分被支撑在一体地设置在气缸盖中的凸轮轴承部分上，并且进气摇杆轴通过螺栓固定到摇臂轴固定 设置在凸轮轴承部分的上表面上的部分。 通过使进气摇臂的相对侧摆动地支撑在进气摇臂轴上，使滑动抵接在与凸轮轴承部分相对的两侧一体形成的定位面上，进气摇臂沿推力方向定位。 因此，可以准确且容易地将进气摇臂在推力方向上定位，而不需要特殊构件。

公开(公告)号：US5493227A

公开(公告)日：1996-02-20

申请号：US360935

申请日：1994-12-21

申请人： Yuichi Shimasaki ,  Masaki Kanehiro ,  Hirokazu Ohsaki ,  Jiro Takagi ,  Katsumi Noguchi ,  Kanehisa Kitukawa

发明人： Yuichi Shimasaki ,  Masaki Kanehiro ,  Hirokazu Ohsaki ,  Jiro Takagi ,  Katsumi Noguchi ,  Kanehisa Kitukawa

IPC分类号： G01M15/04 ,  F02D45/00 ,  F02P17/00 ,  F02P17/12

CPC分类号： F02P17/12 ,  F02P2017/006 ,  F02P2017/125

摘要： A misfire-detecting system for an internal combustion engine detects occurrence of a misfire in the engine, based on voltage between both ends of a spark plug assumed when sparking discharge takes place at the spark plug. A diode is arranged in an ignition secondary circuit of the engine, for checking reverse current flowing in the circuit in a direction reverse to the direction of flow of current occurring when spark ignition takes place at the spark plug. An ECU detects reverse current flowing in the ignition secondary circuit, and detects an abnormality of the diode, based on the detected reverse current.

摘要翻译： 用于内燃机的失火检测系统基于在火花塞处发生火花放电时假定的火花塞的两端之间的电压来检测发动机中发生失火的发生。 在发动机的点火二次回路中设置二极管，用于检查在与火花塞处发生火花点火时发生的电流的流动方向相反的电路中流动的反向电流。 ECU检测在点火二次回路中流动的反向电流，并且基于检测到的反向电流来检测二极管的异常。

公开(公告)号：US20110178750A1

公开(公告)日：2011-07-21

申请号：US13120433

申请日：2009-09-09

申请人： Natsuko Kitamura ,  Yoshiaki Akimoto ,  Jiro Takagi ,  Atsushi Kurauchi ,  Masayuki Yoshiiri ,  Hirotaka Komatsu ,  Kazuhiko Hirota ,  Makoto Murakami

发明人： Natsuko Kitamura ,  Yoshiaki Akimoto ,  Jiro Takagi ,  Atsushi Kurauchi ,  Masayuki Yoshiiri ,  Hirotaka Komatsu ,  Kazuhiko Hirota ,  Makoto Murakami

IPC分类号： G01R23/16

CPC分类号： G01R23/16 ,  G01L23/221 ,  G01L23/225 ,  G01M15/12 ,  G05B15/00 ,  G06F17/00 ,  G06F19/00

摘要： A frequency spectrum analyzing apparatus for performing a frequency spectrum analysis with respect to a detected value of an operating parameter of an internal combustion engine in synchronism with rotation of the engine, is provided. The operating parameter is sampled at predetermined time intervals, and a sampled value is converted to a digital value. Intensities of first and second elements are calculated with respect to a predetermined number of the sampled values. The first elements and second elements respectively correspond to a plurality of frequency components contained in the detected value, and a phase of the second element differs from a phase of the first element by 90 degrees. Frequency component intensities corresponding to the plurality of frequency components are calculated in synchronism with rotation of the engine, using the first element intensities and the second element intensities. The frequency component intensities are calculated by replacing a part of an integrated value of the first element intensities, and a part of an integrated value of the second element intensities respectively with corresponding preceding calculated values, when an rotational speed of the engine is higher than or equal to a set threshold value.

摘要翻译： 提供了一种频谱分析装置，用于与发动机的旋转同步地执行关于内燃机的操作参数的检测值的频谱分析。 以预定的时间间隔对操作参数进行采样，并将采样值转换为数字值。 相对于预定数量的采样值来计算第一和第二元素的强度。 第一元件和第二元件分别对应于包含在检测值中的多个频率分量，并且第二元件的相位与第一元件的相位不同90度。 使用第一元件强度和第二元件强度，与发动机的旋转同步地计算与多个频率分量对应的频率分量强度。 通过将发动机的转速高于或等于的第一元件强度的积分值的一部分和第二元件强度的积分值的一部分分别与相应的先前计算值相对应地计算频率分量强度， 等于设定的阈值。

公开(公告)号：US06827062B2

公开(公告)日：2004-12-07

申请号：US10776306

申请日：2004-02-12

申请人： Takaaki Fukusako ,  Mikio Fujiwara ,  Jiro Takagi

发明人： Takaaki Fukusako ,  Mikio Fujiwara ,  Jiro Takagi

IPC分类号： F02P5152

CPC分类号： F02D41/0087 ,  F02D13/06 ,  F02D17/02 ,  F02D41/005 ,  F02P5/1516 ,  F02P5/152 ,  F02P5/1527 ,  G01L23/225 ,  Y02T10/18 ,  Y02T10/46

摘要： An ignition timing control apparatus for an internal combustion engine having a plurality of cylinders, wherein operation of the engine is switchable between a partial-cylinder operation, which operates some of the cylinders, and an all-cylinder operation, which operates all of the cylinders. Basic ignition timing is calculated according to an operating condition of the engine. Knocking is determined based on an output of the knock sensor. A correction amount of the ignition timing is calculated according to a result of the knocking determination to suppress knocking, and the basic ignition timing is corrected with the calculated correction amount. Learning values of the correction amount are calculated corresponding, respectively, to partial-cylinder operation and all-cylinder operation, and one of the calculated learning values is used according to the operating condition of the engine.

公开(公告)号：US5598821A

公开(公告)日：1997-02-04

申请号：US443567

申请日：1995-05-18

申请人： Shukoh Terata ,  Kenichi Maeda ,  Shigetaka Kuroda ,  Yuichi Shimasaki ,  Masaki Kanehiro ,  Takuji Ishioka ,  Takashi Hisaki ,  Jiro Takagi ,  Eitetsu Akiyama ,  Shigeki Baba ,  Shigeru Maruyama

发明人： Shukoh Terata ,  Kenichi Maeda ,  Shigetaka Kuroda ,  Yuichi Shimasaki ,  Masaki Kanehiro ,  Takuji Ishioka ,  Takashi Hisaki ,  Jiro Takagi ,  Eitetsu Akiyama ,  Shigeki Baba ,  Shigeru Maruyama

IPC分类号： F02D29/02 ,  F02D45/00 ,  F02P5/15 ,  F02P17/00 ,  F02P17/12 ,  F02P5/00

CPC分类号： F02P17/12 ,  F02P5/1504

摘要： A high probability of detecting an erroneous misfire occurs when combustion becomes unstable during jolt control. Therefore, during jolt control the reliability of the misfire detection system is degraded. As a result, the misfire detection system is inactivated during jolt control by discontinuing the misfire detection, or by deliberately deeming no misfire has occurred if jolt control has occurred. Alternatively, the misfire detection sensitivity is masked during jolt control.

摘要翻译： 当在颠簸控制期间燃烧变得不稳定时，发生错误的失火的高概率。 因此，在颠簸控制期间，失火检测系统的可靠性降低。 因此，通过停止失火检测，或者通过故意认为如果发生抖动控制，则不发生失火，在失速控制中失火检测系统被停用。 或者，在颠簸控制期间，失火检测灵敏度被屏蔽。

公开(公告)号：US20110282562A1

公开(公告)日：2011-11-17

申请号：US13144978

申请日：2010-01-28

申请人： Masayuki Yoshiri ,  Jiro Takagi ,  Hirotaka Komatsu ,  Kazuhiko Hirota ,  Atsushi Kurauchi ,  Natsuko Kitamura

发明人： Masayuki Yoshiri ,  Jiro Takagi ,  Hirotaka Komatsu ,  Kazuhiko Hirota ,  Atsushi Kurauchi ,  Natsuko Kitamura

IPC分类号： F02D45/00

CPC分类号： F02P5/1522 ,  F02D35/027 ,  F02D41/187 ,  F02D41/2451 ,  F02D41/248 ,  Y02T10/46

摘要： An ignition timing control system for an internal combustion engine, for controlling an ignition timing of the engine, is provided. A charging efficiency of the engine is calculated according to the intake air flow rate and the engine rotational speed which are detected, and a knock limit ignition timing is calculated according to the engine rotational speed and the charging efficiency. A knock correction value is calculated according to the knocking detection result by a knock sensor, and a learning parameter table, in which first and second learning parameters are set, is updated based on the engine rotational speed and the knock correction value when the knocking is detected. The learning parameter table is retrieved according to the engine rotational speed, to calculate the first and second learning parameters. Each-cylinder correction values are calculated corresponding respectively to a plurality of cylinders of the engine using the charging efficiency, the first learning parameter, and the second learning parameter and the ignition timing of the engine is controlled using the knock limit ignition timing and the each-cylinder correction value.

摘要翻译： 提供了一种用于控制发动机的点火正时的用于内燃机的点火正时控制系统。 根据检测到的进气流量和发动机转速来计算发动机的充气效率，并且根据发动机转速和充电效率计算爆震极限点火正时。 根据爆震传感器的爆震检测结果计算爆震校正值，并且当敲击是基于发动机转速和爆震校正值而更新基于第一和第二学习参数的学习参数表 检测到。 根据发动机转速检索学习参数表，计算第一和第二学习参数。 使用充电效率，第一学习参数和第二学习参数分别对应于发动机的多个气缸来计算每个气缸校正值，并且使用爆震极限点火正时来控制发动机的点火正时 - 气缸校正值。

公开(公告)号：US20110118960A1

公开(公告)日：2011-05-19

申请号：US12674577

申请日：2009-03-09

申请人： Hirotaka Komatsu ,  Jiro Takagi ,  Atsushi Kurauchi ,  Masayuki Yoshiri ,  Kazuhiko Hirota ,  Natsuko Kitamura ,  Yoshiaki Akimoto

发明人： Hirotaka Komatsu ,  Jiro Takagi ,  Atsushi Kurauchi ,  Masayuki Yoshiri ,  Kazuhiko Hirota ,  Natsuko Kitamura ,  Yoshiaki Akimoto

IPC分类号： G01L23/22

CPC分类号： G01L23/221 ,  F02D35/027 ,  F02D2041/288 ,  F02D2250/14 ,  G01M15/042 ,  G01M15/12

摘要： A knocking detecting apparatus for an internal combustion engine, which can more accurately perform the knocking determination based on frequency components of the output signal of the knock sensor, is provided. A frequency spectrum analysis of the knock sensor output signal is performed at predetermined angular intervals of the crankshaft rotation angle. Intensities of a plurality of frequency components obtained by the frequency spectrum analysis are stored as time series data. The time series data of the frequency component intensity are binarized, and it is determined whether or not a knocking has occurred based on the binarized time series data.

摘要翻译： 提供了一种用于内燃机的爆震检测装置，其能够基于爆震传感器的输出信号的频率分量更准确地执行爆震确定。 爆震传感器输出信号的频谱分析以曲轴旋转角度的预定角度间​​隔进行。 通过频谱分析获得的多个频率分量的强度被存储为时间序列数据。 频率分量强度的时间序列数据被二值化，并且基于二进制化的时间序列数据确定是否发生了敲击。

公开(公告)号：US20120053822A1

公开(公告)日：2012-03-01

申请号：US13172489

申请日：2011-06-29

申请人： Yosuke Kosaka ,  Daisuke Shiomi ,  Jiro Takagi ,  Masaya Agata ,  Kentaro Onuma ,  Shinobu Ochiai

发明人： Yosuke Kosaka ,  Daisuke Shiomi ,  Jiro Takagi ,  Masaya Agata ,  Kentaro Onuma ,  Shinobu Ochiai

IPC分类号： F02D41/00

CPC分类号： F02D41/0002 ,  F02D9/02 ,  F02D11/105 ,  F02D13/02 ,  F02D13/0238 ,  F02D41/0062 ,  F02D41/0072 ,  F02D41/18 ,  F02D2041/001 ,  F02D2200/0402 ,  F02D2200/0408 ,  F02D2200/1002 ,  F02D2200/1004 ,  F02D2200/703 ,  F02D2250/18 ,  F02P5/1504 ,  F02P5/1516 ,  F02P5/152 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/46 ,  Y02T10/47

摘要： A control system for an internal combustion engine having a throttle valve disposed in an intake passage of the engine. A target intake air amount of the engine is calculated, and an intake pressure of the engine is estimated. A wide-open intake air amount is calculated according to the engine rotational speed, and a theoretical intake air amount is calculated according to the wide-open intake air amount and the intake pressure. The wide-open intake air amount is an intake air amount corresponding to a state where the throttle valve is fully opened, and the theoretical intake air amount is an intake air amount corresponding to a state where no exhaust gas of the engine is recirculated to a combustion chamber of the engine. further, an exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the target intake air amount, and a target output torque of the engine is calculated using the target intake air amount and the exhaust gas recirculation ratio. The engine is controlled using the target output torque.

摘要翻译： 一种用于内燃机的控制系统，其具有设置在发动机的进气通道中的节流阀。 计算发动机的目标进气量，并且估计发动机的进气压力。 根据发动机转速计算出大的进气量，根据大气开放量和进气压力算出理论吸气量。 宽敞的吸入空气量是与节气门完全打开的状态相对应的吸入空气量，理论吸入空气量是与发动机的排气不再循环到的状态对应的吸入空气量 发动机的燃烧室。 此外，使用理论吸入空气量和目标进气量计算废气再循环比，并且使用目标进气量和排气再循环比率来计算发动机的目标输出转矩。 使用目标输出扭矩控制发动机。

公开(公告)号：US07438665B2

公开(公告)日：2008-10-21

申请号：US11589474

申请日：2006-10-30

申请人： Jiro Takagi ,  Yasuaki Asaki ,  Nobuyuki Kawaguchi ,  Makoto Segawa ,  Hirosuke Niwa

发明人： Jiro Takagi ,  Yasuaki Asaki ,  Nobuyuki Kawaguchi ,  Makoto Segawa ,  Hirosuke Niwa

IPC分类号： B60W10/04

CPC分类号： F02D41/0087 ,  B60W2510/1005 ,  B60W2520/10 ,  F01L13/0005 ,  F01L2800/00 ,  F02D41/0225 ,  F02D2200/023 ,  F02D2200/024 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/703 ,  F16H63/50 ,  Y10T477/675 ,  Y10T477/679 ,  Y10T477/68

摘要： A control system for an internal combustion engine having a plurality of cylinders and a switching mechanism for switching between an all-cylinder operation in which all of the plurality of cylinders are operated and a partial-cylinder operation in which at least one of the plurality of cylinders is halted. A condition for performing the partial-cylinder operation is determined, based on the detected operating parameters of the vehicle driven by the engine. A result of the determination is modified so that the partial-cylinder operation may be continued, when the detected operating parameters satisfy a predetermined continuation condition within a predetermined time period from the time a vehicle operating state where the condition for performing the partial-cylinder operation is satisfied, has changed to another vehicle operating state where the condition for performing the partial-cylinder operation is not satisfied.

摘要翻译： 一种用于具有多个气缸的内燃机的控制系统和用于在其中操作所有多个气缸的全气缸操作之间进行切换的切换机构和其中多个气缸中的至少一个 气瓶停止。 基于由发动机驱动的车辆的检测到的操作参数来确定用于执行部分缸操作的条件。 当从执行部分气缸操作的状态的车辆操作状态起的预定时间段内检测到的操作参数满足预定的连续状态时，修改确定的结果，使得可以继续部分气缸操作 已经改变为不满足执行部分气缸操作的条件的另一个车辆操作状态。

公开(公告)号：US20070042863A1

公开(公告)日：2007-02-22

申请号：US11589474

申请日：2006-10-30

申请人： Jiro Takagi ,  Yasuaki Asaki ,  Nobuyuki Kawaguchi ,  Makoto Segawa ,  Hirosuke Niwa

发明人： Jiro Takagi ,  Yasuaki Asaki ,  Nobuyuki Kawaguchi ,  Makoto Segawa ,  Hirosuke Niwa

IPC分类号： B60W10/04

CPC分类号： F02D41/0087 ,  B60W2510/1005 ,  B60W2520/10 ,  F01L13/0005 ,  F01L2800/00 ,  F02D41/0225 ,  F02D2200/023 ,  F02D2200/024 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/703 ,  F16H63/50 ,  Y10T477/675 ,  Y10T477/679 ,  Y10T477/68

摘要： A control system for an internal combustion engine having a plurality of cylinders and a switching mechanism for switching between an all-cylinder operation in which all of the plurality of cylinders are operated and a partial-cylinder operation in which at least one of the plurality of cylinders is halted. A condition for performing the partial-cylinder operation is determined, based on the detected operating parameters of the vehicle driven by the engine. A result of the determination is modified so that the partial-cylinder operation may be continued, when the detected operating parameters satisfy a predetermined continuation condition within a predetermined time period from the time a vehicle operating state where the condition for performing the partial-cylinder operation is satisfied, has changed to another vehicle operating state where the condition for performing the partial-cylinder operation is not satisfied.

摘要翻译： 一种用于具有多个气缸的内燃机的控制系统和用于在其中操作所有多个气缸的全气缸操作之间进行切换的切换机构和其中多个气缸中的至少一个 气瓶停止。 基于由发动机驱动的车辆的检测到的操作参数来确定用于执行部分缸操作的条件。 当从执行部分气缸操作的状态的车辆操作状态起的预定时间段内检测到的操作参数满足预定的连续状态时，修改确定的结果，使得可以继续部分气缸操作 已经改变为不满足执行部分气缸操作的条件的另一个车辆操作状态。