公开(公告)号：US09399958B2

公开(公告)日：2016-07-26

申请号：US13695713

申请日：2010-05-11

申请人： Takeshi Sano ,  Shinji Ikeda ,  Yusuke Suzuki ,  Soichiro Tanaka

发明人： Takeshi Sano ,  Shinji Ikeda ,  Yusuke Suzuki ,  Soichiro Tanaka

IPC分类号： F02M25/07 ,  F02D21/08 ,  F02D35/02 ,  F02D41/00

CPC分类号： F02D21/08 ,  F02D35/023 ,  F02D41/0072 ,  Y02T10/47

摘要： To accurately specify an EGR rate from an output value of an in-cylinder pressure sensor, a specifying method of an EGR rate in an internal combustion engine of the present invention acquires an output value of an in-cylinder pressure sensor at an intake stroke to calculate comparison data related to an in-cylinder pressure at the intake stroke from the acquired sensor output value. An output value of the in-cylinder pressure sensor at an exhaust stroke of the same cycle is also acquired to calculate comparison data related to the in-cylinder pressure at the exhaust stroke from the acquired sensor output value. Two comparison data are compared to specify the EGR rate of an air-fuel mixture provided for combustion from a difference between the values.

摘要翻译： 为了从缸内压力传感器的输出值准确地确定EGR率，本发明的内燃机的EGR率的指定方法将进气冲程中的缸内压力传感器的输出值取得为 从获取的传感器输出值计算与进气冲程中的缸内压力相关的比较数据。 还获取在相同循环的排气冲程中的缸内压力传感器的输出值，以从所获取的传感器输出值计算与排气行程的缸内压力有关的比较数据。 将两个比较数据进行比较，从这些值之间的差中指定提供用于燃烧的空气 - 燃料混合物的EGR率。

公开(公告)号：US20130042843A1

公开(公告)日：2013-02-21

申请号：US13695713

申请日：2010-05-11

申请人： Takeshi Sano ,  Shinji Ikeda ,  Yusuke Suzuki ,  Soichiro Tanaka

发明人： Takeshi Sano ,  Shinji Ikeda ,  Yusuke Suzuki ,  Soichiro Tanaka

IPC分类号： F02D21/08 ,  F02M25/07 ,  F02B47/08

CPC分类号： F02D21/08 ,  F02D35/023 ,  F02D41/0072 ,  Y02T10/47

摘要： To accurately specify an EGR rate from an output value of an in-cylinder pressure sensor, a specifying method of an EGR rate in an internal combustion engine of the present invention acquires an output value of an in-cylinder pressure sensor at an intake stroke to calculate comparison data related to an in-cylinder pressure at the intake stroke from the acquired sensor output value. An output value of the in-cylinder pressure sensor at an exhaust stroke of the same cycle is also acquired to calculate comparison data related to the in-cylinder pressure at the exhaust stroke from the acquired sensor output value. Two comparison data are compared to specify the EGR rate of an air-fuel mixture provided for combustion from a difference between the values.

摘要翻译： 为了从缸内压力传感器的输出值准确地确定EGR率，本发明的内燃机的EGR率的指定方法将进气冲程中的缸内压力传感器的输出值取得为 从获取的传感器输出值计算与进气冲程中的缸内压力相关的比较数据。 还获取在相同循环的排气冲程中的缸内压力传感器的输出值，以从所获取的传感器输出值计算与排气行程的缸内压力有关的比较数据。 将两个比较数据进行比较，从这些值之间的差中指定提供用于燃烧的空气 - 燃料混合物的EGR率。

公开(公告)号：US20120004821A1

公开(公告)日：2012-01-05

申请号：US13254699

申请日：2010-02-26

申请人： Takeshi Sano ,  Yusuke Suzuki ,  Shinji Ikeda

发明人： Takeshi Sano ,  Yusuke Suzuki ,  Shinji Ikeda

IPC分类号： F02D28/00

CPC分类号： G01M15/11 ,  F02D35/023 ,  F02D41/008 ,  F02D2200/1004 ,  F02D2200/1012 ,  G01M15/08

摘要： A torque estimating system for an internal combustion engine including a plurality of cylinders is provided that is capable of accurately estimating torque for each cylinder.A cylinder pressure of a CPS-mounted cylinder #1 is acquired (step 100). Measured indicated torque Te1 resulting from an explosion in the CPS-mounted cylinder #1 is calculated based on the cylinder pressure (step 102). A first angular acceleration dω1/dt and a second angular acceleration dω2/dt are calculated (steps 104 to 106). Estimated indicated torque Te2 resulting from an explosion in a CPS-less cylinder #2 is calculated using the measured indicated torque Te1 of the CPS-mounted cylinder #1 and a difference value between the second angular acceleration dω2/dt and the first angular acceleration dω1/dt (step 108). If a cylinder pressure sensor is to be disposed in a plurality of cylinders, cylinders in which the CPS is disposed are set such that the number of cylinders in which the explosion takes place between the cylinders having the CPS is equal.

摘要翻译： 提供一种用于包括多个气缸的内燃机的扭矩估计系统，其能够精确地估计每个气缸的扭矩。 获取安装有CPS的气缸＃1的气缸压力（步骤100）。 基于气缸压力计算由CPS安装的气缸＃1中的爆炸产生的测量的指示转矩Te1（步骤102）。 计算第一角加速度dω1/ dt和第二角加速度dω2/ dt（步骤104至106）。 使用CPS安装的气缸＃1的测量指示转矩Te1和第二角加速度dω2/ dt与第一角加速度dω1之间的差值来计算由无CPS气缸＃2中的爆炸产生的预计转矩Te2 / dt（步骤108）。 如果将气缸压力传感器设置在多个气缸中，则设置CPS的气缸被设定为使得在具有CPS的气缸之间发生爆炸的气缸数相等。

公开(公告)号：US08688358B2

公开(公告)日：2014-04-01

申请号：US13254699

申请日：2010-02-26

申请人： Takeshi Sano ,  Yusuke Suzuki ,  Shinji Ikeda

发明人： Takeshi Sano ,  Yusuke Suzuki ,  Shinji Ikeda

IPC分类号： F02D41/24

CPC分类号： G01M15/11 ,  F02D35/023 ,  F02D41/008 ,  F02D2200/1004 ,  F02D2200/1012 ,  G01M15/08

摘要： A torque estimating system for an internal combustion engine includes a plurality of cylinders and estimates torque for each cylinder. A cylinder pressure of a cylinder pressure sensor (CPS) mounted cylinder #1 is acquired. Measured indicated torque Te1 resulting from an explosion in the CPS-mounted cylinder #1 is calculated based on the cylinder pressure. A first angular acceleration dω1/dt and a second angular acceleration dω2/dt are calculated. Estimated indicated torque Te2 resulting from an explosion in a CPS-less cylinder #2 is calculated using the measured indicated torque Te1 of the CPS-mounted cylinder #1 and a difference value between the second angular acceleration dω2/dt and the first angular acceleration dω1/dt.

摘要翻译： 用于内燃机的扭矩估计系统包括多个气缸并且估计每个气缸的扭矩。 获得安装有气缸＃1的气缸压力传感器（CPS）的气缸压力。 基于气缸压力计算由CPS安装的气缸＃1中的爆炸产生的测量的指示转矩Te1。 计算第一角加速度dω1/ dt和第二角加速度dω2/ dt。 使用CPS安装的气缸＃1的测量指示转矩Te1和第二角加速度dω2/ dt与第一角加速度dω1之间的差值来计算由无CPS气缸＃2中的爆炸产生的预计转矩Te2 / dt。

公开(公告)号：US09518523B2

公开(公告)日：2016-12-13

申请号：US14117489

申请日：2011-05-16

申请人： Shinji Ikeda ,  Takeshi Sano ,  Kazumasa Shimode

发明人： Shinji Ikeda ,  Takeshi Sano ,  Kazumasa Shimode

IPC分类号： F02D41/30 ,  F02D41/00 ,  F02D35/02 ,  F02D41/14

CPC分类号： F02D41/30 ,  F02D35/023 ,  F02D41/0085 ,  F02D41/1454 ,  F02D41/1475

摘要： A plurality of cylinders are provided. An in-cylinder pressure sensor is mounted on each of the plurality of cylinders. A combustion parameter (e.g., the amount of generated heat) is calculated from the output of the in-cylinder pressure sensor. The air-fuel ratio for a cylinder is enleaned by reducing a fuel injection amount until the combustion parameter coincides with a predetermined value. Each cylinder is subjected to fuel injection amount reduction control so that the combustion parameter coincides with the predetermined value. The air-fuel ratio for each cylinder is then calculated in accordance with the reduction amount of fuel injection amount. The calculated air-fuel ratios are compared to detect an air-fuel ratio imbalance between the cylinders.

摘要翻译： 提供多个气缸。 缸内压力传感器安装在多个气缸中的每一个上。 根据缸内压力传感器的输出计算燃烧参数（例如，产生的热量）。 通过减少直到燃烧参数与预定值一致的燃料喷射量，来净化气缸的空燃比。 对每个气缸进行燃料喷射量减少控制，使得燃烧参数与预定值一致。 然后根据燃料喷射量的减少量计算每个气缸的空燃比。 比较计算出的空燃比以检测气缸之间的空燃比不平衡。

公开(公告)号：US20140290622A1

公开(公告)日：2014-10-02

申请号：US14117489

申请日：2011-05-16

申请人： Shinji Ikeda ,  Takeshi Sano ,  Kazumasa Shimode

发明人： Shinji Ikeda ,  Takeshi Sano ,  Kazumasa Shimode

IPC分类号： F02D41/30

CPC分类号： F02D41/30 ,  F02D35/023 ,  F02D41/0085 ,  F02D41/1454 ,  F02D41/1475

摘要： A plurality of cylinders are provided. An in-cylinder pressure sensor is mounted on each of the plurality of cylinders. A combustion parameter (e.g., the amount of generated heat) is calculated from the output of the in-cylinder pressure sensor. The air-fuel ratio for a cylinder is enleaned by reducing a fuel injection amount until the combustion parameter coincides with a predetermined value. Each cylinder is subjected to fuel injection amount reduction control so that the combustion parameter coincides with the predetermined value. The air-fuel ratio for each cylinder is then calculated in accordance with the reduction amount of fuel injection amount. The calculated air-fuel ratios are compared to detect an air-fuel ratio imbalance between the cylinders.

摘要翻译： 提供多个气缸。 缸内压力传感器安装在多个气缸中的每一个上。 根据缸内压力传感器的输出计算燃烧参数（例如，产生的热量）。 通过减少直到燃烧参数与预定值一致的燃料喷射量，来净化气缸的空燃比。 对每个气缸进行燃料喷射量减少控制，使得燃烧参数与预定值一致。 然后根据燃料喷射量的减少量计算每个气缸的空燃比。 比较计算出的空燃比以检测气缸之间的空燃比不平衡。

公开(公告)号：US06304813B1

公开(公告)日：2001-10-16

申请号：US09517627

申请日：2000-03-03

申请人： Shinji Ikeda ,  Yusuke Suzuki

发明人： Shinji Ikeda ,  Yusuke Suzuki

IPC分类号： F02D4114

CPC分类号： F02D41/1494 ,  F02D41/1456 ,  G01N27/4067

摘要： An oxygen concentration detector includes an air-fuel ratio sensor, a heater that heats the air-fuel ratio sensor, a heater controller that supplies electric power to the heater such that the air-fuel ratio sensor reaches an activation temperature, and an element temperature detector that detects a temperature of an element of the air-fuel ratio sensor. The heater controller detects a rate of decrease in the temperature of the element of the air-fuel ratio sensor based on the temperature detected by the element temperature detector, and determines that the sensor element is wetted when the detected rate of decrease is greater than a reference value. The element temperature detector can detect the sensor element temperature based on an impedance of the element. The heater controller can prevent the supply of electric power to the heater if it is determined that the sensor element is wetted. The air-fuel ratio sensor can be provided in an exhaust passage of an engine.

摘要翻译： 氧浓度检测器包括空燃比传感器，加热空燃比传感器的加热器，向加热器供电以使空燃比传感器达到活化温度的加热器控制器，以及元件温度 检测器，其检测空燃比传感器的元件的温度。 加热器控制器基于由元件温度检测器检测到的温度来检测空燃比传感器的元件的温度降低率，并且当检测到的降低速率大于a时，确定传感器元件被润湿 参考值。 元件温度检测器可以基于元件的阻抗来检测传感器元件的温度。 如果确定传感器元件被润湿，加热器控制器可以防止对加热器的电力供应。 空燃比传感器可以设置在发动机的排气通道中。

公开(公告)号：US09354154B2

公开(公告)日：2016-05-31

申请号：US13503585

申请日：2011-06-07

申请人： Hiroki Nishijima ,  Shinji Ikeda ,  Keiichiro Aoki ,  Yoshinobu Yoshihara ,  Yasufumi Nakanishi ,  Takaya Suzuki

发明人： Hiroki Nishijima ,  Shinji Ikeda ,  Keiichiro Aoki ,  Yoshinobu Yoshihara ,  Yasufumi Nakanishi ,  Takaya Suzuki

IPC分类号： F02D41/14 ,  G01N15/06 ,  F01N9/00

CPC分类号： G01N15/0656 ,  F01N9/002 ,  F01N2410/00 ,  F01N2560/05 ,  F01N2560/20 ,  F02D41/1466

摘要： A porous structure including a pair of electrodes disposed in a flow direction of exhaust gas and a solid electrolyte interposed between the electrodes is arranged in an exhaust passage of an internal combustion engine, and the amount of a particulate matter in exhaust gas is specified based on a potential difference generated between the electrodes.

摘要翻译： 在内燃机的排气通道中设置有包括在废气流动方向上设置的一对电极和介于电极之间的固体电解质的多孔结构，并且基于 在电极之间产生的电位差。

公开(公告)号：US07249757B2

公开(公告)日：2007-07-31

申请号：US10666047

申请日：2003-09-18

申请人： Nobuhiro Ozawa ,  Takeshi Kirihara ,  Shinji Ikeda

发明人： Nobuhiro Ozawa ,  Takeshi Kirihara ,  Shinji Ikeda

IPC分类号： F16F3/04

CPC分类号： H01R39/381

摘要： A spring device consists of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a liner spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance between the right and left side plates of the spring case is set a little larger than an outer diameter of the coil spring. A distance between the back and front side pates of the spring case is set about 1.5 to 2 times larger than the outer diameter of the coil spring, and a length of the spring case is set smaller than a free length of the coil spring. The coil spring is deformed and a non-linear spring property is obtained when the coil spring is urged through the spring urging member.

摘要翻译： 弹簧装置包括由右，左，后和前侧板形成的螺旋弹簧壳体和弹簧接收板，具有衬垫弹簧特性的螺旋弹簧和用于将螺旋弹簧推入螺旋弹簧壳体的弹簧推动构件 。 弹簧壳体的右侧板和左侧板之间的距离被设定为比螺旋弹簧的外径稍大。 弹簧箱的后侧和前侧之间的距离设定为比螺旋弹簧的外径大约1.5至2倍，并且弹簧壳体的长度被设定为小于螺旋弹簧的自由长度。 当螺旋弹簧通过弹簧推动构件被推动时，螺旋弹簧变形并且获得非线性的弹簧特性。

公开(公告)号：US20070090718A1

公开(公告)日：2007-04-26

申请号：US11561469

申请日：2006-11-20

申请人： Nubuhiro Ozawa ,  Takeshi Kirihara ,  Shinji Ikeda

发明人： Nubuhiro Ozawa ,  Takeshi Kirihara ,  Shinji Ikeda

IPC分类号： H01R39/38 ,  H01R39/40

CPC分类号： H01R39/381

摘要： A spring device includes of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a liner spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance between the right and left side plates of the spring case is set a little larger than an outer diameter of the coil spring. A distance between the back and front side pates of the spring case is set about 1.5 to 2 times larger than the outer diameter of the coil spring, and a length of the spring case is set smaller than a free length of the coil spring. The coil spring is deformed and a non-linear spring property is obtained when the coil spring is urged through the spring urging member.

摘要翻译： 弹簧装置包括由右，左，后和前侧板形成的螺旋弹簧壳体和弹簧接收板，具有衬垫弹簧特性的螺旋弹簧和用于将螺旋弹簧推入螺旋弹簧壳体的弹簧推动构件 。 弹簧壳体的右侧板和左侧板之间的距离被设定为比螺旋弹簧的外径稍大。 弹簧箱的后侧和前侧之间的距离设定为比螺旋弹簧的外径大约1.5至2倍，并且弹簧壳体的长度被设定为小于螺旋弹簧的自由长度。 当螺旋弹簧通过弹簧推动构件被推动时，螺旋弹簧变形并且获得非线性的弹簧特性。