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    Fuel metering control system for internal combustion engine
    1.
    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：US5758630A

    公开(公告)日：1998-06-02

    申请号：US580662

    申请日：1995-12-29

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

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

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

    CPC分类号： F02D41/008 ,  F02D41/1402 ,  F02D41/1473 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1433 ,  F02D41/1456

    摘要： A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates a controller parameters .theta.. The adaptive controller corrects the quantity of fuel injection to bring a controlled variable obtained at least based on an output of said air/fuel ratio sensor, to a desired value. The air/fuel ratio sensor outputs are sampled and one of the sampled data is selected as the air/fuel ratio to be input to the adaptation mechanism. Similarly, the senor outputs are sampled and one of the sampled is selected in accordance with another characteristic to be used in the estimation of the air/fuel ratios of the individual cylinder. The air/fuel ratio is discriminated to be within a prescribed range, and set to a predetermined value when it is determined to be within the prescribed range.

    摘要翻译： 一种用于内燃机的燃料计量控制系统，包括具有自适应控制器的反馈回路和估计控制器参数+ E，cirθ+ EE的自适应机构。 自适应控制器校正燃料喷射量，使至少基于所述空气/燃料比传感器的输出获得的受控变量达到期望值。 空气/燃料比传感器输出被采样，并且其中一个采样数据被选择为要输入到适应机构的空燃比。 类似地，传感器输出被采样，并且根据用于估计单个气缸的空气/燃料比的另一特性来选择采样中的一个。 空气/燃料比被判断为在规定范围内，并且当确定在规定范围内时将其设定为预定值。

    EGR rate estimation system for internal combustion engine
    2.
    发明授权
    EGR rate estimation system for internal combustion engine 失效
    内燃机EGR率估算系统

    公开(公告)号：US5505174A

    公开(公告)日：1996-04-09

    申请号：US421181

    申请日：1995-04-13

    申请人： Isao Komoriya ,  Yusuke Hasegawa ,  Hidetaka Maki ,  Shusuke Akazaki ,  Hiroshi Kitagawa ,  Toru Kitamura

    发明人： Isao Komoriya ,  Yusuke Hasegawa ,  Hidetaka Maki ,  Shusuke Akazaki ,  Hiroshi Kitagawa ,  Toru Kitamura

    IPC分类号： F02D21/08 ,  F02D41/00 ,  F02M25/07 ,  F02D41/04 ,  F02P5/15

    CPC分类号： F02D41/0072 ,  F02M26/57 ,  F02D2041/1431 ,  Y02T10/47

    摘要： A system for estimating an exhaust gas recirculation rate for an internal combustion engine. In the system, the EGR rate when its operation is steady is first determined to a desired value with respect to the engine operating conditions at least including the engine speed and the engine load, then the EGR rate is estimated as;EGR rate=(steady-state EGR rate).times.{(gas flow rate QACT determined by the actual valve lifting amount and the ratio between the upstream pressure and the downstream pressure of valve)/(gas flow rate QCMD determined by a command value and the ratio between the upstream pressure and the downstream pressure of valve)} A delay time until the recycled gas enters the combustion chamber is determined and one from among the EGR rates or a fuel injection correction coefficients calculated therefrom consecutively is selected.

    摘要翻译： 一种用于估计内燃机的排气再循环速率的系统。 在该系统中，其运转稳定时的EGR率首先被确定为至少包括发动机转速和发动机负荷的发动机运行条件的期望值，则EGR率被估计为： EGR率=（稳态EGR率）x {（由实际阀提升量确定的气体流量QACT和阀的上游压力与下游压力之间的比率）/（由指令值确定的气体流量QCMD和 阀的上游压力和下游压力之间的比率）}确定直到再循环气体进入燃烧室的延迟时间，并且选择EGR率之中的一个或连续计算的燃料喷射校正系数。

    Fuel metering control system for internal combustion engine
    3.
    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：US5781875A

    公开(公告)日：1998-07-14

    申请号：US606384

    申请日：1996-02-23

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

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

    IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  G06G7/70

    CPC分类号： F02D41/008 ,  F02D41/1402 ,  F02D41/1473 ,  F02D41/1477 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1422 ,  F02D2041/1426 ,  F02D2041/1433 ,  F02D41/1456

    摘要： A system for controlling fuel metering for an internal combustion engine provided with a first feedback loop that calculates a first feedback correction coefficient using an adaptive control law to correct a quantity of fuel injection such that a detected air/fuel ratio is brought to a desired air/fuel ratio, a second feedback loop that calculates a second coefficient using a PID control law to similarly correct the quantity of fuel injection, and a third feedback loop that calculates a third coefficient using a PID controller to correct the quantity of fuel injection such that air/fuel ratio variance among the cylinders decreases. Either of the first or second coefficient is selected and based on the selected coefficient, the feedback gains of the third feedback loop are determined.

    摘要翻译： 一种用于控制用于内燃机的燃料计量的系统，该内燃机设置有第一反馈回路，该第一反馈回路使用自适应控制定律来计算第一反馈校正系数，以校正燃料喷射量，使得检测到的空气/燃料比达到期望空气 /燃料比，第二反馈回路，其使用PID控制定律来计算第二系数以类似地校正燃料喷射量;以及第三反馈回路，其使用PID控制器计算第三系数，以校正燃料喷射量，使得 气缸之间的空气/燃料比差异减小。 选择第一或第二系数中的任一个，并且基于所选择的系数，确定第三反馈回路的反馈增益。

    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：US5549092A

    公开(公告)日：1996-08-27

    申请号：US507974

    申请日：1995-07-27

    申请人： Yusuke Hasegawa ,  Isao Komoriya ,  Shusuke Akazaki ,  Hidetaka Maki ,  Satoru Abe

    发明人： Yusuke Hasegawa ,  Isao Komoriya ,  Shusuke Akazaki ,  Hidetaka Maki ,  Satoru Abe

    IPC分类号： F02D45/00 ,  F02D41/04 ,  F02D41/18 ,  F02D41/32 ,  F02D41/34 ,  F02D41/10

    CPC分类号： F02D41/182 ,  F02D41/045 ,  F02D41/32 ,  F02D2200/0402

    摘要： A system for controlling fuel metering in an internal combustion engine using a fluid dynamic model and the quantity of throttle-past air is determined therefrom. Based on the observation that the difference between the steady-state engine operating condition and the transient engine operating condition can be described as the difference in the effective throttle opening areas, the quantity of fuel injection is determined from the product of the ratio between the area and its first-order lag value and the quantity of fuel injection under the steady-state engine operating condition obtained by mapped data retrieval, and by subtracting the quantity of correction corresponding to the quantity of chamber-filling air. The effective throttle opening area's first order lag is calculated using a weight that varies with the engine speed, so that elongation or shortening of the TDC interval due to the decrease/increase of the engine speed will not affect the determination of the quantity of fuel injection.

    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以及节流过去空气的量来确定。 基于将稳态发动机运转状态与暂态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 以及其一阶滞后值和通过映射数据检索获得的稳态发动机运转状态下的燃料喷射量，并且减去与填充空气量相对应的校正量。 使用随发动机转速变化的重量来计算有效节气门开度面积的一阶滞后，使得由于发动机转速的降低/增加引起的TDC间隔的伸长或缩短不会影响燃料喷射量的确定 。

    Fuel metering control system in internal combustion engine
    7.
    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 in internal combustion engine
    9.
    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：US5546907A

    公开(公告)日：1996-08-20

    申请号：US507977

    申请日：1995-07-27

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

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

    IPC分类号： F02D45/00 ,  F02D13/02 ,  F02D41/04 ,  F02D41/18 ,  F02D41/32 ,  F02D41/34 ,  F02D41/10

    CPC分类号： F02D41/182 ,  F02D41/045 ,  F02D41/32 ,  F02D2200/0402

    摘要： A system for controlling fuel metering in an internal combustion engine using a fluid dynamic model with the quantity of throttle-past air being determined therefrom. Based on the observation that the difference between the steady-state engine operating condition and the transient engine operating condition can be described as the difference in the effective throttle opening areas, the quantity of fuel injection is determined from the product of the ratio between the area and its first-order lag value and the quantity of fuel injection under the steady-state engine operating condition obtained by mapped data retrieval and by subtracting the quantity of correction corresponding to the quantity of chamber-filling air. A pseudo-manifold pressure is estimated and is used for calculating the effective throttle opening area and its first lag value. The pseudo-manifold pressure is corrected by atmospheric pressure, engine coolant water temperature, etc., so as to enhance estimation accuracy.

    摘要翻译： 一种用于使用流体动力学模型控制内燃机中的燃料计量的系统，其中确定了节流过去空气的量。 基于将稳态发动机运转状态与暂态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 以及其一阶滞后值和通过映射数据检索获得的稳态发动机运转状态下的燃料喷射量，并减去与填充空气量相对应的校正量。 估计模拟歧管压力，并用于计算有效节气门开度面积及其第一滞后值。 假歧管压力由大气压力，发动机冷却水温度等进行校正，以提高估计精度。