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公开(公告)号：US5349933A
公开(公告)日：1994-09-27
申请号：US137344
申请日：1993-10-18
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。
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公开(公告)号：US5758308A
公开(公告)日：1998-05-26
申请号：US580632
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
CPC分类号： F02D41/008 , F02D41/0042 , F02D41/0072 , F02D41/009 , F02D41/045 , F02D41/1402 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1418 , F02D2041/142 , F02D2041/1433 , Y02T10/47
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 device 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 predetermined based on an effective opening area of a throttle valve, 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 value. The output quantity of fuel injection is further corrected by 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转状况的发动机运转状态检测装置。 根据发动机转速和发动机负荷，通过检索基于节流阀的有效开口面积预先确定的映射数据来确定燃料喷射的基本量。 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/燃料比达到期望值。 通过附着在进气歧管壁上的燃料进一步校正燃料喷射的输出量。
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公开(公告)号：US5720265A
公开(公告)日：1998-02-24
申请号：US514632
申请日：1995-08-14
CPC分类号： F02D41/1402 , F02D13/0215 , F02D41/1477 , F02D2041/001 , F02D2041/1409 , F02D2041/1415 , F02D2041/1418 , F02D2041/142 , F02D2041/1426 , F02D2041/1433 , F02D41/1456 , Y02T10/18
摘要： A fuel metering control system for an internal combustion engine, having a feedback loop. In the system, the quantity of fuel injection (Tim) to be supplied to the engine (plant) is determined outside of the feedback loop. A first feedback correction coefficient (KSTR) is calculated using an adaptive law, while a second feedback correction coefficient (KLAF), whose control response is inferior to that of the first feedback correction coefficient, is calculated using a PID control law. The feedback correction coefficients are calculated such that the plant output (air/fuel ratio) is brought to a desired value (desired air/fuel ratio). The coefficients are calculated at least in parallel and either of them is selected to be multiplied by the quantity of fuel injection (Ti).
摘要翻译： 一种用于内燃机的燃料计量控制系统，具有反馈回路。 在该系统中，在反馈回路之外确定要供应给发动机（工厂）的燃料喷射量（Tim）。 使用自适应法计算第一反馈校正系数（KSTR），而使用PID控制定律计算其控制响应低于第一反馈校正系数的第二反馈校正系数（KLAF）。 计算反馈校正系数，使得工厂输出（空气/燃料比）达到期望值（期望的空气/燃料比）。 至少并行计算系数，并选择其中的任一个乘以燃料喷射量（Ti）。
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公开(公告)号：US5638802A
公开(公告)日：1997-06-17
申请号：US602114
申请日：1996-02-23
申请人： Hidetaka Maki , Shusuke Akazaki , Yusuke Hasegawa
发明人： Hidetaka Maki , Shusuke Akazaki , Yusuke Hasegawa
CPC分类号： F02D41/1402 , F02D41/126 , F02D41/1488 , F02D2041/1415 , F02D2041/1426 , F02D2041/1433 , F02D41/1456
摘要： A system for controlling fuel metering for a multi-cylinder internal combustion engine, having a feedback loop which has an adaptive controller and an adaptation mechanism coupled to the adaptive controller for estimating controller parameters .theta.. The adaptive controller calculates a feedback correction coefficient using internal variables that include at least said controller parameters .theta., to correct a basic quantity of fuel injection obtained by retrieving mapped data by engine speed and engine load, to bring a detected air/fuel ratio to a desired air/fuel ratio. In the system, the internal variables of the adaptive controller are set to predetermined values, when the supply of fuel is resumed after termination of the fuel cutoff, and the adaptive controller calculates the feedback correction coefficient based on the internal variables set to the predetermined value.
摘要翻译： 一种用于控制用于多气缸内燃机的燃料计量的系统，具有反馈回路，所述反馈回路具有耦合到自适应控制器的自适应控制器和适配机构，用于估计控制器参数+ E，cirθ+ EE。 自适应控制器使用包括至少所述控制器参数+ E，cirθ+ EE的内部变量来计算反馈校正系数，以校正通过发动机速度和发动机负载检索映射数据而获得的基本燃料喷射量，以便检测到 空气/燃料比达到所需的空气/燃料比。 在该系统中，当在燃料切断结束后重新开始燃料供给时，自适应控制器的内部变量被设定为预定值，并且自适应控制器基于设定为预定值的内部变量来计算反馈校正系数 。
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公开(公告)号：US5606959A
公开(公告)日：1997-03-04
申请号：US580480
申请日：1995-12-29
CPC分类号： F02D41/008 , F02D41/1402 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/142 , F02D2041/1422 , F02D2041/1426 , F02D2041/1431 , F02D2041/1433 , F02D2041/1434 , F02D2200/703
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 controller parameters .theta.. The adaptive controller calculates a feedback correction coefficient that corrects the quantity of fuel injection to bring a controlled variable obtained at least based on an output of an air/fuel ratio sensor, to a desired air/fuel ratio. The convergence speed of the controller parameters are determined by a gain matrix. The gain matrix is determined in response to at least one of the detected engine operating conditions.
摘要翻译： 一种用于内燃机的燃料计量控制系统，其包括具有自适应控制器和估计控制器参数+ E，cirθ+ EE的自适应机构的反馈回路。 自适应控制器计算校正燃料喷射量的反馈校正系数，以将至少基于空气/燃料比传感器的输出获得的受控变量转换为期望的空气/燃料比。 控制器参数的收敛速度由增益矩阵决定。 响应于检测到的发动机操作条件中的至少一个来确定增益矩阵。
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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
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。
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公开(公告)号：US5908463A
公开(公告)日：1999-06-01
申请号：US580690
申请日：1995-12-29
申请人： Shusuke Akazaki , Yusuke Hasegawa , Isao Komoriya , Hidetaka Maki , Yoichi Nishimura , Toshiaki Hirota
发明人： Shusuke Akazaki , Yusuke Hasegawa , Isao Komoriya , Hidetaka Maki , Yoichi Nishimura , Toshiaki Hirota
CPC分类号： F02D41/008 , F02D41/1402 , F02D41/1473 , 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 having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions such as engine speed and engine load. The basic quantity of fuel injection is determined by retrieving mapped data according to the detected parameters. A plurality of controllers are provided all using outputs of the air/fuel ratio sensor. The controllers are configured to receive the sensor outputs through filters having different cutout frequency so as to avoid control interference therebetween.
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。 该系统包括用于检测发动机运转状况如发动机转速和发动机负荷的空燃比传感器和发动机工况条件检测装置。 通过根据检测到的参数检索映射数据来确定燃料喷射的基本量。 提供了使用空/燃比传感器的输出的多个控制器。 控制器被配置为通过具有不同切断频率的滤波器接收传感器输出，以避免它们之间的控制干扰。
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公开(公告)号：US5787868A
公开(公告)日：1998-08-04
申请号：US587804
申请日：1995-12-29
CPC分类号： F02D41/008 , F02D41/1402 , F02D41/1473 , F02D41/1488 , F02D41/2454 , F02D41/2477 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/142 , F02D2041/1422 , F02D2041/1426 , F02D2041/1431 , F02D2041/1433 , F02D41/1454 , 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 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 adaptation mechanism is input with the controlled variable once per prescribed crank angle such as a TDC of a certain cylinder and estimates the controller parameters. Since, however, the input is limited to a specific cylinder's air/fuel ratio, the air/fuel ratio is averaged for all cylinders and used in the calculation. Similar averaging is made for the other parameters input to the mechanism or output from the controller.
摘要翻译： 一种用于内燃机的燃料计量控制系统，其包括具有自适应控制器和估计控制器参数+ E，cirθ+ EE的自适应机构的反馈回路。 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。 适应机制是通过控制变量输入一个规定的曲柄角，例如某个气缸的TDC，并估计控制器参数。 然而，由于输入被限制在特定的气缸的空气/燃料比，因此所有气缸的空气/燃料比被平均化并用于计算。 对输入机构的其他参数或从控制器的输出进行类似的平均。
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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
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。
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公开(公告)号：US5666934A
公开(公告)日：1997-09-16
申请号：US581501
申请日：1995-12-29
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 , F02D2250/12 , 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 adaptation mechanism is input with the controlled variable once per prescribed crank angle such as TDC of a certain cylinder and estimates the controller parameters (vector). The adaptive controller is therefore operated to synchronize with every prescribed crank angle, e.g., every TDC of all cylinders of the internal combustion engine. With the arrangement, the system enables adaptive control of a commercially practical internal combustion engine without degrading control performance.
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。 适应机制是按照规定的曲柄角（如某个气缸的TDC）一次输入受控变量，并估计控制器参数（矢量）。 因此，自适应控制器被操作以与每个规定的曲柄角（例如内燃机的所有气缸的每个TDC）同步。 通过该装置，该系统能够实现对商业上实用的内燃机的自适应控制，而不降低控制性能。
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