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公开(公告)号：US6026793A
公开(公告)日：2000-02-22
申请号：US143542
申请日：1998-08-28
CPC分类号： G05B13/042 , F02D41/1402 , F02D41/1456 , F02D41/2454 , F02D41/2477 , F02D2041/1415 , F02D2041/1418 , F02D2041/143 , F02D2041/1433 , F02D41/2483
摘要： A control system for a plant includes a sensor for detecting an output from the plant, an adaptive controller for controlling a manipulated variable applied to control of the plant in a manner such that an output from the sensor becomes equal to a desired value, and an adaptive parameter vector-adjusting mechanism for adjusting an adaptive parameter vector used by the adaptive controller. The adaptive parameter vector-adjusting mechanism is constructed such that an updating component for updating the adaptive parameter vector is added to an initial value of the adaptive parameter vector, and updates the adaptive parameter vector by multiplying at least part of preceding values of the updating component by a predetermined coefficient which is larger than 0 but smaller than 1.
摘要翻译： 一种用于设备的控制系统包括用于检测来自所述设备的输出的传感器，用于以使得所述传感器的输出变为等于所需值的方式控制施加于所述设备的控制的操纵变量的自适应控制器，以及 自适应参数矢量调整机制，用于调整自适应控制器使用的自适应参数矢量。 自适应参数矢量调整机构被构造成使得用于更新自适应参数矢量的更新部件被添加到自适应参数矢量的初始值，并且通过将更新部件的至少一部分先前值相乘来更新自适应参数矢量 通过大于0但小于1的预定系数。
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2.发明授权
公开(公告)号：US6021767A
公开(公告)日：2000-02-08
申请号：US143535
申请日：1998-08-28
CPC分类号： G05B13/042 , F02D41/1402 , F02D41/2454 , F02D41/2477 , F02D2041/1415 , F02D2041/1418 , F02D2041/143 , F02D2041/1433 , F02D2250/12 , F02D41/1456 , F02D41/2483
摘要： An air-fuel ratio control system for a multi-cylinder engine is provided. An air-fuel ratio sensor is arranged in an exhaust system of the engine for detecting an air-fuel ratio of a mixture supplied to the engine and for generating an output indicative of the air-fuel ratio of the mixture. An adaptive controller determines an amount of fuel to be supplied to the engine with a first predetermined repetition period in a manner such that the output from the air-fuel ratio sensor becomes equal to a desired value. An adaptive parameter-adjusting mechanism adjusts adaptive parameters used by the adaptive controller. In the adaptive parameter-adjusting mechanism, the adaptive parameters are calculated with a second predetermined repetition period longer than the first predetermined repetition period, and output data indicative of results of the calculation is generated. Further, the output data indicative of results of the calculation is smoothed and output data indicative of the smoothed data is generated with a repetition period at least equal to the first predetermined repetition period. The adaptive controller uses the smoothed data as values of the adaptive parameters.
摘要翻译： 提供了一种用于多缸发动机的空燃比控制系统。 在发动机的排气系统中布置有空燃比传感器，用于检测供应到发动机的混合物的空燃比并产生表示混合物的空燃比的输出。 自适应控制器以使得来自空燃比传感器的输出变得等于期望值的方式，以第一预定重复周期来确定要提供给发动机的燃料量。 自适应参数调整机制调整自适应控制器使用的自适应参数。 在自适应参数调整机构中，以比第一预定重复周期长的第二预定重复周期来计算自适应参数，并且生成表示计算结果的输出数据。 此外，表示计算结果的输出数据被平滑，并且以至少等于第一预定重复周期的重复周期生成指示平滑数据的输出数据。 自适应控制器使用平滑数据作为自适应参数的值。
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公开(公告)号：US6125831A
公开(公告)日：2000-10-03
申请号：US136924
申请日：1998-08-21
CPC分类号： F02D41/2461 , F02D41/1402 , F02D41/1456 , G05B13/042 , F02D2041/1415 , F02D2041/1418 , F02D2041/143 , F02D2041/1433
摘要： A control system for a plant includes a sensor for detecting an output from the plant, an adaptive controller for controlling a manipulated variable applied to control of the plant in such a manner that an output from the sensor becomes equal to a desired value, and an adaptive parameter-adjusting device for adjusting adaptive parameters used by the adaptive controller. The adaptive parameter-adjusting device has an identification error-calculating device for calculating an identification error of the adaptive parameters and generating an identification error signal indicative of the calculated identification error, and an adjusting device for adjusting the adaptive parameters based on the calculated identification error. The adaptive parameter-adjusting device includes a non-linear filter for generating an output of 0 or approximately 0 in response to the identification error signal when the identification error is within a predetermined range. The adjusting device adjusts the adaptive parameters by using the output from the non-linear filter.
摘要翻译： 一种用于设备的控制系统包括用于检测来自所述设备的输出的传感器，用于控制施加到所述设备的控制的操作变量的自适应控制器，使得所述传感器的输出变得等于期望值，以及 自适应参数调整装置，用于调整自适应控制器使用的自适应参数。 自适应参数调整装置具有识别误差计算装置，用于计算自适应参数的识别误差并产生表示计算出的识别误差的识别误差信号;以及调整装置，用于基于所计算的识别误差来调整自适应参数 。 自适应参数调整装置包括非线性滤波器，用于当识别误差在预定范围内时响应于识别误差信号产生0或大约0的输出。 调节装置通过使用非线性滤波器的输出来调整自适应参数。
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公开(公告)号：US5983875A
公开(公告)日：1999-11-16
申请号：US139643
申请日：1998-08-25
CPC分类号： G05B13/042 , F02D41/1402 , F02D41/1481 , F02D13/0207 , F02D13/0257 , F02D2041/001 , F02D2041/1415 , F02D2041/1418 , F02D2041/1431 , F02D2200/703 , F02D41/1441 , F02D41/1456
摘要： A control system for a plant includes a sensor for detecting an output from the plant, an adaptive controller for controlling a manipulated variable applied to control of the plant in a manner such that an output from the sensor becomes equal to a desired value, and an adaptive parameter-adjusting device for adjusting adaptive parameters used by the adaptive controller. The adaptive controller is configured in a manner adapted to a predetermined dead time shorter than an actual dead time which the plant and the detection means possess. Sampling timing of an input vector input to the adaptive parameter-adjusting device corresponds to the actual dead time.
摘要翻译： 一种用于设备的控制系统包括用于检测来自所述设备的输出的传感器，用于以使得所述传感器的输出变为等于所需值的方式控制施加于所述设备的控制的操纵变量的自适应控制器，以及 自适应参数调整装置，用于调整自适应控制器所使用的自适应参数。 自适应控制器被配置为适于比植物和检测装置具有的实际死区时间短的预定死区时间。 输入到自适应参数调整装置的输入矢量的采样定时对应于实际死区时间。
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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
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。
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公开(公告)号：US5758630A
公开(公告)日：1998-06-02
申请号：US580662
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 , 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。
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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
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。
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8.发明授权
公开(公告)号：US5715796A
公开(公告)日：1998-02-10
申请号：US603278
申请日：1996-02-20
申请人： Norio Suzuki , Koichi Fujimori , Yusuke Hasegawa , Hiroki Munakata , Shusuke Akazaki , Masuhiro Yoshizaki
发明人： Norio Suzuki , Koichi Fujimori , Yusuke Hasegawa , Hiroki Munakata , Shusuke Akazaki , Masuhiro Yoshizaki
CPC分类号： F02D41/1486 , F02D41/008 , F02D41/021 , F02D41/06 , F02D41/062 , F02D41/1402 , F02D41/1441 , F02D41/1475 , F02D41/1477 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/142 , F02D2041/1426 , F02D2041/1431 , F02D2041/1433 , F02D41/0085 , F02D41/1456
摘要： There is provided an air-fuel ratio control system for an internal combustion engine installed on an automotive vehicle. The control system controls the air-fuel ratio of a mixture supplied to the engine to a value leaner than a stoichiometric air-fuel ratio immediately after the start of the engine. Operating conditions of the engine and/or operating conditions of the automotive vehicle are detected. Starting of the vehicle is predicted based on the detected operating conditions of the engine and/or the detected operating conditions of the automotive vehicle. The air-fuel ratio of the mixture supplied to the engine is changed to a richer value than the leaner value when the starting of the vehicle is predicted.
摘要翻译： 提供了一种用于安装在机动车辆上的内燃机的空燃比控制系统。 控制系统将供给发动机的混合物的空燃比控制在发动机启动之后的比理论空燃比更小的值。 检测发动机的运转状况和/或机动车辆的运转状况。 基于检测到的发动机的运行条件和/或检测到的机动车辆的运行状况来预测车辆的起动。 当预测出车辆的起动时，供给发动机的混合物的空燃比被改变为比精度值更丰富的值。
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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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