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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：US5657736A
公开(公告)日：1997-08-19
申请号：US581281
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： F02D41/0085 , 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. The basic quantity of fuel injection is determined by retrieving mapped data according to the engine speed and engine load. A controller is provided to calculate a feedback correction coefficient to correct the quantity of basic fuel injection such that variance between individual cylinder air/fuel ratios is decreased. The quantity of fuel injection is further corrected by a fuel adhered to 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。 该系统包括用于检测发动机工作条件的空燃比传感器和发动机工作条件检测装置。 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。 提供控制器来计算反馈校正系数以校正基本燃料喷射量，使得各个气缸空气/燃料比之间的变化减小。 通过附着在进气歧管壁上的燃料进一步校正燃料喷射量。
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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
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。
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14.发明授权
公开(公告)号：US5448978A
公开(公告)日：1995-09-12
申请号：US85157
申请日：1993-07-02
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。
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公开(公告)号：US5638801A
公开(公告)日：1997-06-17
申请号：US606096
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 , F02D41/1473 , F02D2041/1415 , F02D2041/1426 , F02D2041/1433 , F02D41/1456
摘要： A system for controlling fuel metering for a multi-cylinder internal combustion engine. In the system, a feedback loop having an adaptive controller and an adaptation mechanism coupled to the adaptive controller for estimating controller parameters .theta. is provided. The adaptive controller calculates a feedback correction coefficient using internal variables including the controller parameters .theta., to correct a 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. The internal variables of the adaptive controller are set such that the feedback correction coefficient is 1.0 or thereabout, when the engine operation has shifted from an open-loop control region to the feedback control region.
摘要翻译： 一种用于控制多缸内燃机的燃料计量的系统。 在该系统中，提供了具有耦合到自适应控制器的自适应控制器和适配机构的反馈回路，用于估计控制器参数+ E，cirθ+ EE。 自适应控制器使用包括控制器参数+ 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燃料喷射量，以便检测到的空气/燃料比 达到所需的空气/燃料比。 当发动机操作已经从开环控制区域转移到反馈控制区域时，自适应控制器的内部变量被设置为使得反馈校正系数为1.0或其附近。
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公开(公告)号：US5590638A
公开(公告)日：1997-01-07
申请号：US545325
申请日：1995-10-19
CPC分类号： F02D41/008 , F02D41/1402 , F02D41/1473 , F02D41/2454 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/142 , F02D2041/1426 , F02D2041/1433 , F02D2250/12 , F02D41/1456 , F02D41/2477 , F02D41/2483
摘要： A fuel metering control system for an internal combustion engine including 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 at least obtained 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 of a four-cylinder engine and estimates the controller parameters (vector) such that the adaptive controller is operated to synchronize with every 4 prescribed crank angle such as every TDC of all cylinders of the internal combustion engine, or with every prescribed crank angle such as every TDC. 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，使得基于所述空气/燃料比传感器的输出至少获得控制变量达到期望值。 适应机构以每个规定的曲柄角一次输入控制变量，例如四缸发动机的某个气缸的TDC，并估计控制器参数（矢量），以使自适应控制器与每4个规定的曲柄同步 内燃机的所有气缸的每个TDC或每个规定的曲柄角度（例如每个TDC）的角度。 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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公开(公告)号：US5558075A
公开(公告)日：1996-09-24
申请号：US514785
申请日：1995-08-14
申请人： Hidetaka Maki , Yusuke Hasegawa , Shusuke Akazaki
发明人： Hidetaka Maki , Yusuke Hasegawa , Shusuke Akazaki
IPC分类号： F02D41/14
CPC分类号： F02D41/1473 , F02D41/1402 , F02D41/1477 , F02D41/1488 , F02D2041/1409 , F02D2041/1415 , F02D2041/142 , F02D2041/1426 , F02D2041/1433 , F02D41/1456
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(KSTRL)), whose control response is inferior to 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 (desired air/fuel ratio). A Variable(s) of one coefficients is replaced with a value of the other coefficient such that the one coefficient becomes close to the other. Moreover, the second coefficient (KLAF(KSTRL) is used at a time of returning from open-loop to the feedback control.
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）。 使用自适应定律来计算第一反馈校正系数（KSTR），而使用PID控制定律来计算其控制响应劣于第一反馈校正系数的第二反馈校正系数（KLAF（KSTRL））。 计算反馈校正系数使得工厂输出（空气/燃料比）达到期望的（期望的空气/燃料比）。 一个系数的变量被替换为其他系数的值，使得一个系数变得接近另一个系数。 此外，在从开环返回到反馈控制时使用第二系数（KLAF（KSTRL））。
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公开(公告)号：US5558076A
公开(公告)日：1996-09-24
申请号：US514857
申请日：1995-08-14
CPC分类号： F02D41/1402 , F01L1/267 , F02D13/0215 , F02D13/0261 , F02D41/0002 , F02D2041/001 , F02D2041/1409 , F02D2041/1415 , F02D2041/142 , F02D2041/1426 , F02D2041/1433 , Y02T10/18 , Y02T10/42
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(KSTRL)), whose control response is inferior to 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 engine is equipped with a variable valve timing mechanism which switches the valve timing between characteristics for low engine speed and those for high engine speed. If the characteristic for high engine speed is selected, the second feedback correction coefficient is used for fuel injection quantity correction.
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）。 使用自适应规律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（KSTRL））。 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）。 该发动机配备有可变气门正时机构，可在低发动机转速的特性与高发动机转速的特性之间切换气门正时。 如果选择高发动机转速的特性，则将第二反馈校正系数用于燃料喷射量校正。
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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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