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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: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:US5806012A
公开(公告)日:1998-09-08
申请号:US580685
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: F02D41/1402 , F02D41/1441 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/142 , F02D2041/1426 , F02D2041/1431 , F02D2041/1433 , F02D41/1454 , 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 value, and second feedback loop is provided for calculating feedback correction coefficients to correct the quantity of fuel injection. The desired air/fuel ratio is corrected by a second air/fuel ratio installed downstream of a catalytic converter.
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/燃料比达到期望值,并且提供第二反馈回路用于计算反馈校正系数以校正数量 的燃油喷射。 通过安装在催化转化器下游的第二空气/燃料比来校正所需的空气/燃料比。
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公开(公告)号:US5758490A
公开(公告)日:1998-06-02
申请号:US581406
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 , F02D41/1473 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/142 , F02D2041/1426 , F02D2041/1431 , 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 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 desired air/fuel ratio is corrected by a second air/fuel ratio sensor installed downstream of a catalytic converter.
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/燃料比达到期望值。 通过安装在催化转化器下游的第二空气/燃料比传感器来校正所需的空气/燃料比。
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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: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: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: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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