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    Fuel metering control system in internal combustion engine
    4.
    发明授权
    Fuel metering control system in internal combustion engine 失效
    内燃机燃油计量控制系统

    公开(公告)号：US5349933A

    公开(公告)日：1994-09-27

    申请号：US137344

    申请日：1993-10-18

    申请人： Yusuke Hasegawa ,  Shusuke Akazaki ,  Isao Komoriya ,  Hidetaka Maki ,  Toshiaki Hirota

    发明人： Yusuke Hasegawa ,  Shusuke Akazaki ,  Isao Komoriya ,  Hidetaka Maki ,  Toshiaki Hirota

    IPC分类号： F02D41/04 ,  F02D41/14 ,  F02D41/18 ,  F02D41/10

    CPC分类号： F02D41/182 ,  F02D41/045 ,  F02D41/1401 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D2200/0402

    摘要： A system for controlling fuel metering in an internal combustion engine using a fluid dynamic model and the cylinder air flow past the throttle is determined therefrom. Based on the observation that the difference between a steady-state engine operating condition and a transient engine operating condition can be described as the difference in the effective throttle opening areas, the amount of fuel injection is determined from the product of the ratio between the areas and a basic fuel injection amount under the steady-state engine operating condition obtained by mapped data retrieval and by subtracting a correction amount corresponding to an air flow filling a chamber between the throttle and the cylinder from the product. Under steady-state engine operation, the correction amount becomes zero. In an embodiment, the first-order lag of a detected throttle opening is calculated and based on the value, various parameters including a pseudo manifold pressure are obtained so as to solve sensors' detection timing lag or a pressure sensor's detection lag.

    摘要翻译： 使用流体动力学模型来控制内燃机中的燃料计量的系统和通过油门的气缸气流被确定。 基于将稳态发动机运转状态与瞬时发动机运转状态之间的差可以描述为有效节气门开度面积的差异的观察结果，燃料喷射量根据区域之间的比率 以及在通过映射数据检索获得的稳态发动机运行状态下的基本燃料喷射量，并且从产品中减去与填充节气门和气缸之间的室的空气流相对应的校正量。 在稳态发动机运行下，校正量变为零。 在一个实施例中，计算检测到的节气门开度的一阶滞后，并且基于该值，获得包括伪歧管压力的各种参数，以便解决传感器的检测定时滞后或压力传感器的检测滞后。

    Fuel metering control system for internal combustion engine
    6.
    发明授权
    Fuel metering control system for internal combustion engine 失效
    内燃机燃油计量控制系统

    公开(公告)号：US5755094A

    公开(公告)日：1998-05-26

    申请号：US580931

    申请日：1995-12-29

    申请人： Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Isao Komoriya ,  Yoichi Nishimura ,  Toshiaki Hirota

    发明人： Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Isao Komoriya ,  Yoichi Nishimura ,  Toshiaki Hirota

    IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F01N3/28

    CPC分类号： F02D41/008 ,  F02D41/1402 ,  F02D41/1441 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1433 ,  F02D41/1456

    摘要： A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions at least including engine speed and engine load. The basic quantity of fuel injection is determined by retrieving mapped data according to the engine speed and engine load. An adaptive controller is provided to calculate a first feedback correction coefficient to correct the quantity of basic fuel injection such that the detected air/fuel ratio is brought to a desired air/fuel ratio, and second and third feedback loops are provided for calculating feedback correction coefficients to correct the quantity of fuel injection. The output quantity of fuel injection is determined on the basis of the basic quantity of fuel injection and the feedback correction coefficients.

    摘要翻译： 一种用于具有多个气缸的内燃机的燃料计量控制系统。 该系统包括空燃比传感器和用于检测至少包括发动机转速和发动机负荷的发动机运行状况的发动机运转状态检测装置。 通过根据发动机转速和发动机负荷检索映射数据来确定燃油喷射的基本数量。 提供自适应控制器来计算第一反馈校正系数以校正基本燃料喷射量，使得检测到的空气/燃料比达到期望的空气/燃料比，并且提供第二和第三反馈回路以计算反馈校正 系数来校正燃油喷射量。 基于燃料喷射的基本量和反馈校正系数来确定燃料喷射的输出量。

    Fuel metering control system for internal combustion engine
    8.
    发明授权
    Fuel metering control system for internal combustion engine 失效
    内燃机燃油计量控制系统

    公开(公告)号：US5657735A

    公开(公告)日：1997-08-19

    申请号：US580856

    申请日：1995-12-29

    申请人： Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Isao Komoriya ,  Yoichi Nishimura ,  Toshiaki Hirota

    发明人： Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Isao Komoriya ,  Yoichi Nishimura ,  Toshiaki Hirota

    IPC分类号： F02D41/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/34

    CPC分类号： F02D41/008 ,  F02D41/047 ,  F02D41/1402 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1433

    摘要： A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions at least including engine speed and engine load. The basic quantity of fuel injection is determined by retrieving mapped data according to the engine speed and engine load. An adaptive controller is provided to calculate a feedback correction coefficient to correct the quantity of basic fuel injection such that the detected air/fuel ratio is brought to a desired air/fuel ratio value is provided for calculating feedback correction coefficients to correct the quantity of fuel injection. The output quantity of fuel injection is determined on the basis of the basic quantity of fuel injection and the feedback correction coefficients, and in addition, fuel adhered on an intake manifold wall.

    摘要翻译： 一种用于具有多个气缸的内燃机的燃料计量控制系统。 该系统包括空燃比传感器和用于检测至少包括发动机转速和发动机负荷的发动机运行状况的发动机运转状态检测装置。 通过根据发动机转速和发动机负荷检索映射数据来确定燃油喷射的基本数量。 提供自适应控制器来计算反馈校正系数以校正基本燃料喷射量，使得检测到的空气/燃料比达到期望的空气/燃料比值，用于计算反馈校正系数以校正燃料量 注射。 基于燃料喷射的基本量和反馈校正系数来确定燃料喷射的输出量，此外，燃料附着在进气歧管壁上。

    Fuel metering control system and cylinder air flow estimation method in internal combustion engine
    9.
    发明授权
    Fuel metering control system and cylinder air flow estimation method in internal combustion engine 失效
    内燃机燃油计量控制系统和气缸气流估计方法

    公开(公告)号：US5448978A

    公开(公告)日：1995-09-12

    申请号：US85157

    申请日：1993-07-02

    申请人： Yusuke Hasegawa ,  Hidetaka Maki ,  Shusuke Akazaki ,  Isao Komoriya ,  Toshiaki Hirota

    发明人： Yusuke Hasegawa ,  Hidetaka Maki ,  Shusuke Akazaki ,  Isao Komoriya ,  Toshiaki Hirota

    IPC分类号： F02D41/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/18 ,  F02D41/34 ,  F02M51/00

    CPC分类号： F02D41/008 ,  F02D41/047 ,  F02D41/1402 ,  F02D41/1458 ,  F02D41/182 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D2041/1434 ,  F02D2200/0402

    摘要： Fuel metering control system in an internal combustion engine utilizing adaptive control having an intake manifold wall's fuel adherence plant. In the system, an actual air/fuel ratio in the individual cylinders is accurately estimated using an exhaust manifold model with an observer. Also, an actual cylinder air flow is estimated using a fluid model. Based on them, a desired cylinder fuel flow is determined by dividing the actual cylinder air flow by a desired air/fuel ratio and an actual cylinder fuel flow is determined by dividing the actual cylinder air flow by the estimated actual air/fuel ratio. The adaptive controller operates such that the actual cylinder fuel flow constantly coincides with the desired cylinder fuel flow. In an embodiment, in order to respond the change in wall adherence parameters, a compensator is connected in series with the wall adherence plant, a virtual plant incorporating the compensator is postulated and when the transfer characteristics of the virtual plant is other than 1 or thereabout, the adaptive controller is operated to have a transfer characteristics inverse thereto. At the same time, a method for estimating cylinder air flow inducted in the engine using the aforesaid fluid model is explained.

    摘要翻译： 利用具有进气歧管壁的燃料附着装置的自适应控制的内燃机中的燃料计量控制系统。 在该系统中，使用具有观察者的排气歧管模型来精确地估计各个气缸中的实际空气/燃料比。 此外，使用流体模型估计实际的气缸气流。 基于它们，通过将实际气缸气流除以期望的空气/燃料比来确定期望的气缸燃料流量，并且通过将实际气缸气流除以估计的实际空气/燃料比来确定实际气缸燃料流量。 自适应控制器操作使得实际气缸燃料流量恒定地与期望的气缸燃料流量重合。 在一个实施例中，为了响应壁粘附参数的变化，补偿器与壁粘附装置串联连接，假设包含补偿器的虚拟设备，并且当虚拟设备的传送特性不是1或其附近 操作自适应控制器以具有与其相反的传送特性。 同时，说明了使用上述流体模型估计在发动机中引入的气缸气流的方法。

    Method for detecting and controlling air-fuel ratio in internal combustion engine
    10.
    发明授权
    Method for detecting and controlling air-fuel ratio in internal combustion engine 失效
    内燃机空燃比检测与控制方法

    公开(公告)号：US5524598A

    公开(公告)日：1996-06-11

    申请号：US282104

    申请日：1994-07-28

    申请人： Yusuke Hasegawa ,  Eisuke Kimura ,  Shusuke Akazaki ,  Isao Komoriya ,  Toshiaki Hirota

    发明人： Yusuke Hasegawa ,  Eisuke Kimura ,  Shusuke Akazaki ,  Isao Komoriya ,  Toshiaki Hirota

    IPC分类号： F02D41/14 ,  F02M51/00

    CPC分类号： F02D41/1481 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/2454 ,  F02D41/2474 ,  F02D41/2477 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D2041/1434 ,  F02D41/1456

    摘要： A method for detecting and controlling the air-fuel ratio of a multicylinder internal combustion engine through an output of a single air-fuel ratio sensor installed at a confluence point of the exhaust system of the engine. The detection response delay is assumed to be a first-order lag and a state variable model is established. Further, the air-fuel ratio at the confluence point is assumed to be a sum of the products of the past firing histories of the each cylinder of the engine and a second state variable model is established. An observer is then designed to observe the internal state of the second model and the air-fuel ratio at the individual cylinders are estimated from the output of the observer. The deadbeat control is carried out by calculating a ratio between the estimated air-fuel ratio and a target air-fuel ratio. The calculated ratio is multiplied to a correction value at a preceding control cycle earlier by a number corresponding to the number of the engine cylinders.

    摘要翻译： 一种用于通过安装在发动机的排气系统的汇合点处的单个空燃比传感器的输出来检测和控制多缸内燃机的空燃比的方法。 假设检测响应延迟为一阶滞后，建立状态变量模型。 此外，合流点处的空燃比被假设为发动机的每个气缸的过去点火历史的乘积之和，建立第二状态变量模型。 然后，观察者被设计成观察第二模型的内部状态，并且从观测者的输出估计各个气缸处的空燃比。 通过计算估计的空燃比与目标空燃比之间的比例来进行失谐控制。 将计算出的比率乘以与前述控制周期相对应的发动机气缸数的数量的校正值。