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    CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE
    11.
    发明申请
    CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机控制系统

    公开(公告)号：US20160017829A1

    公开(公告)日：2016-01-21

    申请号：US14763566

    申请日：2013-01-29

    Applicant: Go HAYASHITA ,  Keiichiro AOKI

    Inventor： Go HAYASHITA ,  Keiichiro AOKI

    IPC: F02D41/14

    CPC classification number: F02D41/1454 ,  F02D41/1401 ,  F02D41/1441 ,  F02D41/1456 ,  G01N27/403 ,  G01N27/4065 ,  G01N27/4076

    Abstract: This control device for an internal combustion engine is equipped with: an air/fuel ratio sensor; and an engine control device that controls the internal combustion engine according to the output of the air/fuel ratio sensor. The air/fuel ratio sensor is configured so that the applied voltage at which the output current reaches zero varies according to the exhaust air/fuel ratio, and the output current increases if the applied voltage is increased at the air/fuel ratio sensor when the exhaust air/fuel ratio is the stoichiometric air/fuel ratio. When the air/fuel ratio of exhaust gas is to be detected by the air/fuel ratio sensor, the applied voltage at the air/fuel ratio sensor is fixed at a constant voltage, said constant voltage being different to the voltage at which the output current reaches zero when the exhaust air/fuel ratio is the stoichiometric air/fuel ratio, and being the voltage at which the output current reaches zero when the exhaust air/fuel ratio is different to the stoichiometric air/fuel ratio. Thus provided is a control device for an internal combustion engine that uses an air/fuel ratio sensor capable of detecting an absolute value for the air/fuel ratio of exhaust gas even if the air/fuel ratio of the exhaust gas is not the stoichiometric air/fuel ratio.

    Abstract translation: 该内燃机的控制装置配备有：空燃比传感器; 以及根据空燃比传感器的输出来控制内燃机的发动机控制装置。 空气/燃料比传感器被配置为使得输出电流达到零的施加电压根据排气/燃料比而变化，并且如果当空气/燃料比传感器的施加电压增加时，输出电流增加 排气/燃料比是理论空燃比。 当空燃比传感器检测排气的空气/燃料比时，将空气/燃料比传感器的施加电压固定为恒定电压，所述恒定电压与输出的电压不同 当排气/燃料比是化学计量空气/燃料比时，当排气/燃料比不同于理论空燃比时，电流达到零时，电流达到零。 因此，即使废气的空气/燃料比不是化学计量空气，也可以使用能够检测废气的空气/燃料比的绝对值的空气/燃料比传感器的内燃机的控制装置 /燃料比。

    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    12.
    发明申请
    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机控制装置

    公开(公告)号：US20150337752A1

    公开(公告)日：2015-11-26

    申请号：US14441681

    申请日：2013-05-24

    Applicant: Keiichiro AOKI ,  Go HAYASHITA

    Inventor： Keiichiro AOKI ,  Go HAYASHITA

    IPC: F02D41/14

    CPC classification number: F02D41/1454 ,  F02D41/1456 ,  G01N27/4065 ,  G01N27/4072

    Abstract: A sensor for detecting oxygen concentration in exhaust gas or an air-fuel ratio provided with a solid electrolyte body, an exhaust gas side electrode being disposed on one side of the solid electrolyte body and being in contact with the exhaust gas, an atmosphere side electrode being disposed on the other side of the solid electrolyte body and being in contact with the atmosphere, and an electric circuit applying a reference voltage between these electrodes is arranged in an engine exhaust passage. The sensor for detecting the oxygen concentration in the exhaust gas or the air-fuel ratio has a characteristic in which an output current continues to increase without having a limiting current region when the voltage applied between the electrodes is increased while the air-fuel ratio is constant. The air-fuel ratio is controlled based on the output current of the sensor for detecting the oxygen concentration in the exhaust gas or the air-fuel ratio.

    Abstract translation: 一种用于检测废气中的氧浓度的传感器或设置有固体电解质体的空燃比，排气侧电极设置在固体电解质体的一侧并与废气接触的气体侧电极 设置在固体电解质体的另一侧并与大气接触，并且在这些电极之间施加参考电压的电路布置在发动机排气通道中。 用于检测排气中的氧浓度的传感器或空燃比具有当电极之间施加的电压增加时输出电流继续增加而不具有限制电流区域的特性，而空燃比为 不变。 基于用于检测排气中的氧浓度的传感器的输出电流或空燃比来控制空燃比。

    OXYGEN SENSOR AND OXYGEN SENSOR CONTROL DEVICE
    13.
    发明申请
    OXYGEN SENSOR AND OXYGEN SENSOR CONTROL DEVICE 有权
    氧传感器和氧传感器控制装置

    公开(公告)号：US20130276431A1

    公开(公告)日：2013-10-24

    申请号：US13993734

    申请日：2010-12-24

    Applicant: Keiichiro Aoki ,  Takanori Sasaki ,  Go Hayashita

    Inventor： Keiichiro Aoki ,  Takanori Sasaki ,  Go Hayashita

    IPC: F01N11/00

    CPC classification number: F01N11/007 ,  F02D41/123 ,  F02D41/1454 ,  F02D41/1476 ,  F02D2041/2051 ,  G01N27/407

    Abstract: In this invention, an EMF oxygen sensor is subjected to an activation process applying unidirectional voltage between an atmosphere electrode and an exhaust electrode thereof. A control device controlling the oxygen sensor in which a voltage was applied with the atmosphere electrode being positive, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode positive, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio of the internal combustion engine was rich relative to the theoretical air-fuel ratio. Conversely, A control device controlling the oxygen sensor in which a voltage was applied to make the atmosphere electrode negative, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode negative, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio was lean relative to the theoretical air-fuel ratio.

    Abstract translation: 在本发明中，EMF氧传感器在气氛电极和排气电极之间进行施加单向电压的激活处理。 控制在气氛电极中施加电压的氧传感器的控制装置为正，另外在电极之间施加单向电压，使得气氛电极为正，例如当氧气传感器在空气中的环境下使用时 内燃机的燃料比相对于理论空燃比是丰富的。 相反，控制其中施加电压以使气氛电极为负的氧传感器的控制装置另外在电极之间施加单向电压，以使气氛电极为负值，例如当氧传感器在其中 空燃比相当于理论空燃比。

    Control device for internal combustion engine
    14.
    发明授权
    Control device for internal combustion engine 有权

    公开(公告)号：US10408149B2

    公开(公告)日：2019-09-10

    申请号：US14441681

    申请日：2013-05-24

    Applicant: Keiichiro Aoki ,  Go Hayashita

    Inventor： Keiichiro Aoki ,  Go Hayashita

    IPC: F02D41/14 ,  G01N27/406 ,  G01N27/407

    Abstract: A sensor for detecting oxygen concentration in exhaust gas or an air-fuel ratio provided with a solid electrolyte body, an exhaust gas side electrode being disposed on one side of the solid electrolyte body and being in contact with the exhaust gas, an atmosphere side electrode being disposed on the other side of the solid electrolyte body and being in contact with the atmosphere, and an electric circuit applying a reference voltage between these electrodes is arranged in an engine exhaust passage. The sensor for detecting the oxygen concentration in the exhaust gas or the air-fuel ratio has a characteristic in which an output current continues to increase without having a limiting current region when the voltage applied between the electrodes is increased while the air-fuel ratio is constant. The air-fuel ratio is controlled based on the output current of the sensor for detecting the oxygen concentration in the exhaust gas or the air-fuel ratio.

    Sensor characteristic correction device
    16.
    发明授权
    Sensor characteristic correction device 有权
    传感器特征校正装置

    公开(公告)号：US09163574B2

    公开(公告)日：2015-10-20

    申请号：US14006405

    申请日：2011-05-24

    Applicant: Keiichiro Aoki ,  Takanori Sasaki ,  Go Hayashita

    Inventor： Keiichiro Aoki ,  Takanori Sasaki ,  Go Hayashita

    IPC: F02D41/24 ,  F02D41/06 ,  F02D41/14 ,  G01M17/00 ,  G06F19/00

    CPC classification number: F02D41/1438 ,  F02D41/062 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/2474

    Abstract: A sensor characteristic correction device is configured to detect a characteristic of a first sensor arranged upstream of a catalyst 6 in an exhaust passage 4 of an internal combustion engine 2, and a characteristic of a second sensor that is an air-fuel sensor 12 arranged downstream of the catalyst 6, to calculate a first air-fuel ratio based on the characteristic of the first sensor, and calculates a second air-fuel ratio based on the characteristic of the second sensor, to detect, when the catalyst 6 is in an inactive state after start-up of the internal combustion engine 2, a difference between the first characteristic and the second characteristic or a difference between the first air-fuel ratio and the second air-fuel ratio, and to correct the responsiveness of the first or the second sensor in accordance with the difference.

    Abstract translation: 传感器特性校正装置被配置为检测布置在内燃机2的排气通道4中的催化剂6上游的第一传感器的特性，以及作为布置在下游的空气 - 燃料传感器12的第二传感器的特性 ，以基于第一传感器的特性来计算第一空燃比，并且基于第二传感器的特性计算第二空燃比，以在催化剂6处于非活动状态时检测 内燃机2启动后的状态，第一特性和第二特性之间的差异，或第一空燃比与第二空燃比之间的差异，并且校正第一或第二空燃比的响应性 第二传感器根据差异。

    Control system of internal combustion engine
    17.
    发明授权
    Control system of internal combustion engine 有权

    公开(公告)号：US09745911B2

    公开(公告)日：2017-08-29

    申请号：US14763555

    申请日：2013-01-29

    Applicant: Go Hayashita ,  Keiichiro Aoki

    Inventor： Go Hayashita ,  Keiichiro Aoki

    IPC: F02D41/14 ,  G01N27/406 ,  F02D41/00

    CPC classification number: F02D41/1454 ,  F02D41/1401 ,  F02D41/1441 ,  F02D41/1456 ,  G01N27/4065 ,  G01N27/419

    Abstract: This control device for an internal combustion engine is equipped with: an air/fuel ratio sensor provided to the exhaust passage of an internal combustion engine; and an engine control device that controls the internal combustion engine according to the output of the air/fuel ratio sensor. The air/fuel ratio sensor is equipped with: a gas chamber to be measured, into which exhaust gas flows; a pump cell that pumps oxygen into or out of the gas chamber to be measured according to the pump current; and a reference cell of which the reference cell output current detected varies according to the air/fuel ratio inside the gas chamber to be measured. The reference cell is equipped with: a first electrode that is exposed to the exhaust gas in the gas chamber to be measured; a second electrode exposed to a reference atmosphere; and a solid electrolyte layer arranged between the electrodes. The air/fuel ratio sensor is equipped with: a reference cell voltage applying device that applies a sensor applied voltage between the electrodes; and a reference cell output current detection device that detects, as the reference cell output current, the current flowing between the electrodes.

    Correction device for air/fuel ratio sensor
    18.
    发明授权
    Correction device for air/fuel ratio sensor 有权
    空气/燃料比传感器校正装置

    公开(公告)号：US09347352B2

    公开(公告)日：2016-05-24

    申请号：US14114770

    申请日：2011-05-19

    Applicant: Keiichiro Aoki ,  Takanori Sasaki ,  Go Hayashita

    Inventor： Keiichiro Aoki ,  Takanori Sasaki ,  Go Hayashita

    IPC: F01N3/00 ,  F01N3/18 ,  F02D41/14 ,  F02D41/02 ,  F02D41/24

    CPC classification number: F02D41/2474 ,  F01N3/18 ,  F02D41/0235 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/2438 ,  F02D41/2441 ,  F02D41/2454

    Abstract: A correction device for an air/fuel ratio sensor in the present invention, the sensor issuing an output according to an air/fuel ratio and installed on the downstream from catalyst of the exhaust passage, has air/fuel ratio control means for controlling an air/fuel ratio of an exhaust gas on the upstream side from a catalyst to switch between a rich air/fuel ratio which is richer and a lean air/fuel ratio which is leaner than a stoichiometric air/fuel ratio. Moreover, correction means for correcting an output of the sensor in accordance with a difference between the output of the sensor during a predetermined period during air/fuel ratio control by the air/fuel ratio control means, and a reference output corresponding to a stoichiometric air/fuel ratio, is provided.

    Abstract translation: 本发明的空气/燃料比传感器的校正装置中，具有空气/燃料比的输出装置，安装在排气通路的催化剂下游的传感器具有空气/燃料比控制装置， /从催化剂上游侧排出的废气的燃料比在富空燃比和比理论空燃比稀的稀空燃比之间切换。 此外，根据空气/燃料比控制装置的空气/燃料比控制期间的预定时间段期间传感器的输出之间的差异校正装置以及对应于理论空燃比的参考输出的校正装置 /燃料比。

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