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1. 发明申请

US20080243362A1 Air-fuel ratio detection apparatus of internal combustion engine 有权
标题翻译：内燃机空燃比检测装置
公开(公告)号：US20080243362A1
公开(公告)日：2008-10-02
申请号：US12153064
申请日：2008-05-13
申请人： Tetsuji Mitsuda , Yasuo Sagisaka , Yasuo Hirata , Eijirou Yamada
发明人： Tetsuji Mitsuda , Yasuo Sagisaka , Yasuo Hirata , Eijirou Yamada
IPC分类号： F02D41/00
CPC分类号： F02D41/0085 , F01L9/04 , F01N3/10 , F01N11/007 , F02D13/0207 , F02D13/0215 , F02D13/06 , F02D41/008 , F02D41/0087 , F02D41/123 , F02D41/1458 , F02D41/22 , F02D41/2454 , F02D2041/001 , F02D2041/1415 , Y02T10/18
摘要： In a multi-cylinder engine, to compute the air-fuel ratio of each cylinder by an air-fuel ratio sensor disposed in an exhaust pipe, a cylinder is determined by a crank angle detected by a crank angle sensor. A deviation in the air-fuel ratio of each cylinder is detected on the basis of the output signal of the air-fuel ratio sensor disposed in the exhaust pipe and the forcibly changed quantity of the air-fuel ratio.
摘要翻译：在多缸发动机中，为了通过设置在排气管中的空燃比传感器来计算各气缸的空燃比，通过由曲轴转角传感器检测到的曲柄角来确定气缸。基于设置在排气管中的空燃比传感器的输出信号和空燃比的强制变化量来检测各气缸的空燃比的偏差。

2. 发明申请

US20110213544A1 FUEL INJECTION CONTROLLER FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：燃油喷射控制器内燃机
公开(公告)号：US20110213544A1
公开(公告)日：2011-09-01
申请号：US13033785
申请日：2011-02-24
申请人： Tetsuji Mitsuda , Kuniaki Ueda
发明人： Tetsuji Mitsuda , Kuniaki Ueda
IPC分类号： F02D41/30
CPC分类号： F02D41/402 , F02D41/1456 , F02D41/2441 , F02D41/2467 , Y02T10/44
摘要： When an engine is driven in a high engine-load condition, a split fuel injection is performed in which a required fuel injection quantity is injected by multiple fuel injections. While the split fuel injection is performed, an actual air-fuel ratio of each cylinder is individually computed based on the output of the air-fuel ratio sensor. Based on the actual air-fuel ratio and a reference air-fuel ratio, an injection-quantity variation of each cylinder is computed. A correction value is computed and learned in order to correct the injection-quantity variation of each cylinder.
摘要翻译：当发动机在高发动机负载状态下被驱动时，执行分离燃料喷射，其中通过多次燃料喷射喷射所需的燃料喷射量。在进行分体燃料喷射的同时，基于空燃比传感器的输出，分别计算各气缸的实际空燃比。基于实际的空燃比和基准空燃比，计算各气缸的喷射量变化。计算和学习校正值，以便校正每个气缸的喷射量变化。

3. 发明授权

US07801666B2 Air-fuel ratio detection apparatus of internal combustion engine 有权
标题翻译：内燃机空燃比检测装置
公开(公告)号：US07801666B2
公开(公告)日：2010-09-21
申请号：US12153064
申请日：2008-05-13
申请人： Tetsuji Mitsuda , Yasuo Sagisaka , Yasuo Hirata , Eijirou Yamada
发明人： Tetsuji Mitsuda , Yasuo Sagisaka , Yasuo Hirata , Eijirou Yamada
IPC分类号： F02D41/14 , F02D41/00
CPC分类号： F02D41/0085 , F01L9/04 , F01N3/10 , F01N11/007 , F02D13/0207 , F02D13/0215 , F02D13/06 , F02D41/008 , F02D41/0087 , F02D41/123 , F02D41/1458 , F02D41/22 , F02D41/2454 , F02D2041/001 , F02D2041/1415 , Y02T10/18
摘要： In a multi-cylinder engine, to compute the air-fuel ratio of each cylinder by an air-fuel ratio sensor disposed in an exhaust pipe, a cylinder is determined by a crank angle detected by a crank angle sensor. A deviation in the air-fuel ratio of each cylinder is detected on the basis of the output signal of the air-fuel ratio sensor disposed in the exhaust pipe and the forcibly changed quantity of the air-fuel ratio.
摘要翻译：在多缸发动机中，为了通过设置在排气管中的空燃比传感器来计算各气缸的空燃比，通过由曲轴转角传感器检测到的曲柄角来确定气缸。基于设置在排气管中的空燃比传感器的输出信号和空燃比的强制变化量来检测各气缸的空燃比的偏差。

4. 发明申请

US20070240695A1 Air-fuel ratio detection apparatus of internal combustion engine 有权
标题翻译：内燃机空燃比检测装置
公开(公告)号：US20070240695A1
公开(公告)日：2007-10-18
申请号：US11727917
申请日：2007-03-29
申请人： Tetsuji Mitsuda , Yasuo Sagisaka , Akihiro Okamoto , Yasuo Hirata , Eijirou Yamada
发明人： Tetsuji Mitsuda , Yasuo Sagisaka , Akihiro Okamoto , Yasuo Hirata , Eijirou Yamada
IPC分类号： F02D41/00 , F01N3/00
CPC分类号： F02D41/0085 , F01L9/04 , F01N3/10 , F01N11/007 , F02D13/0207 , F02D13/0215 , F02D13/06 , F02D41/008 , F02D41/0087 , F02D41/123 , F02D41/1458 , F02D41/22 , F02D41/2454 , F02D2041/001 , F02D2041/1415 , Y02T10/18
摘要： In a multi-cylinder engine, to compute the air-fuel ratio of each cylinder by an air-fuel ratio sensor disposed in an exhaust pipe, a cylinder is determined by a crank angle detected by a crank angle sensor. A deviation in the air-fuel ratio of each cylinder is detected on the basis of the output signal of the air-fuel ratio sensor disposed in the exhaust pipe and the forcibly changed quantity of the air-fuel ratio.
摘要翻译：在多缸发动机中，为了通过设置在排气管中的空燃比传感器来计算各气缸的空燃比，通过由曲轴转角传感器检测到的曲柄角来确定气缸。基于设置在排气管中的空燃比传感器的输出信号和空燃比的强制变化量来检测各气缸的空燃比的偏差。

5. 发明授权

US07677091B2 Air-fuel ratio controller for an internal combustion engine and diagnosis apparatus for intake sensors 有权
标题翻译：用于内燃机的空燃比控制器和用于进气传感器的诊断装置
公开(公告)号：US07677091B2
公开(公告)日：2010-03-16
申请号：US12213932
申请日：2008-06-26
申请人： Yasuo Mukai , Tetsuji Mitsuda
发明人： Yasuo Mukai , Tetsuji Mitsuda
IPC分类号： G01M15/05
CPC分类号： F02D41/18 , F02D41/222 , F02D41/2451 , F02D2200/0402 , F02D2200/0404 , F02D2200/0406
摘要： A computer calculates an estimated cylinder-intake-air amount based on outputs from an airflow meter and a throttle position sensor, and then calculates a reference cylinder-intake-air amount based on an air-fuel ratio in an exhaust gas and fuel injection amount. An error of the estimated cylinder-intake-air amount is calculated by comparing the reference cylinder-intake-air amount with an estimated cylinder-intake-air amount base value. The error is low-pass filtered. The estimated cylinder-intake-air amount base value is corrected to obtain the final estimated cylinder-intake-air amount.
摘要翻译：计算机基于来自气流计和节气门位置传感器的输出来计算估计的气缸进气量，然后基于排气中的空燃比和燃料喷射量计算基准气缸吸入空气量。通过将参考气缸进气量与估计的气缸进气空气量基准值进行比较来计算估计气缸进气量的误差。错误是低通滤波。校正估计的气缸进气量基准值以获得最终估计的气缸进气量。

6. 发明申请

US20100269805A1 EXHAUST GAS SENSOR HEATER DEGRADATION DIAGNOSIS DEVICE 审中-公开
标题翻译：排气传感器加热器降解诊断装置
公开(公告)号：US20100269805A1
公开(公告)日：2010-10-28
申请号：US12766040
申请日：2010-04-23
申请人： Hiroyuki FUKUDA , Masahiko Yamaguchi , Tetsuji Mitsuda
发明人： Hiroyuki FUKUDA , Masahiko Yamaguchi , Tetsuji Mitsuda
IPC分类号： F02D41/00
CPC分类号： F02D41/1494 , F02D41/1454 , F02D41/222 , F02D2200/503 , Y02T10/40
摘要： A switching element is connected between a heater of an oxygen sensor and a ground in series. A voltage sensing resistor is connected in parallel with the switching element and in series with the heater. When the switching element is in a de-energization state, if the heater degrades and a resistance of the heater changes, a heater terminal voltage (potential at middle point between heater and voltage sensing resistor) changes correspondingly. Therefore, when the switching element is in the de-energization state, a heater terminal voltage determination parameter changing in accordance with the heater terminal voltage is sensed, and a degradation determination value corresponding to a battery voltage and temperature of the heater is calculated from a map. The heater terminal voltage determination parameter is compared with the degradation determination value to determine whether the heater has degraded.
摘要翻译：开关元件连接在氧传感器的加热器和串联的地面之间。电压感测电阻器与开关元件并联并与加热器串联。当开关元件处于断电状态时，如果加热器劣化并且加热器的电阻变化，则加热器端子电压（加热器和电压感测电阻器之间的中间点的电位）相应地改变。因此，当开关元件处于断电状态时，检测到根据加热器端子电压而变化的加热器端子电压确定参数，并且根据加热器端子电压的电池电压和温度的劣化判定值从地图。将加热器端子电压确定参数与劣化判定值进行比较，以确定加热器是否已经劣化。

7. 发明申请

US20080004787A1 Air-fuel ratio controller for internal combustion engine and diagnosis apparatus for intake sensors 有权
标题翻译：用于内燃机的空燃比控制器和进气传感器的诊断装置
公开(公告)号：US20080004787A1
公开(公告)日：2008-01-03
申请号：US11892296
申请日：2007-08-21
申请人： Tetsuji Mitsuda , Yasuo Mukai
发明人： Tetsuji Mitsuda , Yasuo Mukai
IPC分类号： F02D41/00
CPC分类号： F02D41/18 , F02D41/222 , F02D41/2451 , F02D2200/0402 , F02D2200/0404 , F02D2200/0406
摘要： A computer calculates an estimated cylinder-intake-air amount based on outputs from an airflow meter and a throttle position sensor, and then calculates a reference cylinder-intake-air amount based on an air-fuel ratio in an exhaust gas and fuel injection amount. An error of the estimated cylinder-intake-air amount is calculated by comparing the reference cylinder-intake-air amount with an estimated cylinder-intake-air amount base value. The error is low-pass filtered. The estimated cylinder-intake-air amount base value is corrected to obtain the final estimated cylinder-intake-air amount.
摘要翻译：计算机基于来自气流计和节气门位置传感器的输出来计算估计的气缸进气量，然后基于排气中的空燃比和燃料喷射量计算基准气缸吸入空气量。通过将参考气缸进气量与估计的气缸进气空气量基准值进行比较来计算估计气缸进气量的误差。错误是低通滤波。校正估计的气缸进气量基准值以获得最终估计的气缸进气量。

8. 发明申请

US20080275623A1 Air-fuel ratio controller for an internal combustion engine and diagnosis apparatus for intake sensors 有权
标题翻译：用于内燃机的空燃比控制器和用于进气传感器的诊断装置
公开(公告)号：US20080275623A1
公开(公告)日：2008-11-06
申请号：US12213932
申请日：2008-06-26
申请人： Naoki Osumi , Tetsuji Mitsuda , Yasuo Mukai
发明人： Naoki Osumi , Tetsuji Mitsuda , Yasuo Mukai
IPC分类号： F02D45/00
CPC分类号： F02D41/18 , F02D41/222 , F02D41/2451 , F02D2200/0402 , F02D2200/0404 , F02D2200/0406
摘要： A computer calculates an estimated cylinder-intake-air amount based on outputs from an airflow meter and a throttle position sensor, and then calculates a reference cylinder-intake-air amount based on an air-fuel ratio in an exhaust gas and fuel injection amount. An error of the estimated cylinder-intake-air amount is calculated by comparing the reference cylinder-intake-air amount with an estimated cylinder-intake-air amount base value. The error is low-pass filtered. The estimated cylinder-intake-air amount base value is corrected to obtain the final estimated cylinder-intake-air amount.
摘要翻译：计算机基于来自气流计和节气门位置传感器的输出来计算估计的气缸进气量，然后基于排气中的空燃比和燃料喷射量计算基准气缸吸入空气量。通过将参考气缸进气量与估计的气缸进气空气量基准值进行比较来计算估计气缸进气量的误差。错误是低通滤波。校正估计的气缸进气量基准值以获得最终估计的气缸进气量。

9. 发明申请

US20060005821A1 Air-fuel ratio controller for internal combustion engine and diagnosis apparatus for intake sensors 失效
公开(公告)号：US20060005821A1
公开(公告)日：2006-01-12
申请号：US11169020
申请日：2005-06-29
申请人： Naoki Osumi , Tetsuji Mitsuda , Yasuo Mukai
发明人： Naoki Osumi , Tetsuji Mitsuda , Yasuo Mukai
IPC分类号： F02D41/14
CPC分类号： F02D41/18 , F02D41/222 , F02D41/2451 , F02D2200/0402 , F02D2200/0404 , F02D2200/0406
摘要： A computer calculates an estimated cylinder-intake-air amount based on outputs from an airflow meter and a throttle position sensor, and then calculates a reference cylinder-intake-air amount based on an air-fuel ratio in an exhaust gas and fuel injection amount. An error of the estimated cylinder-intake-air amount is calculated by comparing the reference cylinder-intake-air amount with an estimated cylinder-intake-air amount base value. The error is low-pass filtered. The estimated cylinder-intake-air amount base value is corrected to obtain the final estimated cylinder-intake-air amount.

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