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51. 发明授权

US5845491A Air-fuel ratio control system for internal combustion engines 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5845491A
公开(公告)日：1998-12-08
申请号：US833131
申请日：1997-04-04
申请人： Yuji Yasui , Shusuke Akazaki , Kohei Hanada
发明人： Yuji Yasui , Shusuke Akazaki , Kohei Hanada
IPC分类号： F02D45/00 , F01N3/24 , F02D41/14 , G05B13/02
CPC分类号： G05B13/0255 , F02D41/1403 , F02D41/1441 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1418 , F02D2041/142 , F02D2041/1426 , F02D2041/1431 , F02D2041/1433 , F02D2250/12 , F02D41/1402 , F02D41/1456
摘要： An air-fuel control system for use with an internal combustion engine has a catalytic converter in an exhaust system of the engine, for purifying an exhaust gas emitted from the engine, a first exhaust gas sensor in the exhaust system for detecting an air-fuel ratio of the exhaust gas upstream of the catalytic converter, and a second exhaust gas sensor in the exhaust system for detecting the concentration of a component of the exhaust gas which has passed through the catalytic converter, downstream of the catalytic converter. A sliding mode controller determines a correction quantity at a first period to correct the air-fuel ratio of the engine so as to equalize the concentration of the component downstream of the catalytic converter to a predetermined appropriate value, according to a sliding mode control process based on the output from the second exhaust gas sensor. A feedback controller determines a correction quantity at a second period for a rate at which fuel is supplied to the engine so as to converge the concentration of the component downstream of the catalytic converter toward the predetermined appropriate value, based on the correction quantity to correct the air-fuel ratio and the output from the first exhaust gas sensor, and feedback-controls the rate at which fuel is supplied to the engine with the determined correction quantity. The first and second periods are established separately from each other.
摘要翻译：一种与内燃机一起使用的空气燃料控制系统，在发动机的排气系统中具有催化转化器，用于净化从发动机排出的废气，用于检测空气燃料的排气系统中的第一废气传感器催化转化器上游排气的比例和排气系统中的第二废气传感器，用于检测催化转化器下游已经通过催化转化器的废气的组分浓度。滑动模式控制器在第一时段确定校正量，以校正发动机的空燃比，以使催化转化器下游的组分的浓度相等于预定的适当值，根据滑动模式控制过程为基础在第二排气传感器的输出上。反馈控制器基于校正量确定燃料被提供给发动机的速率的第二时间段的校正量，以便将催化转化器下游的组分的浓度朝向预定的适当值收敛，以校正空燃比和第一废气传感器的输出，并且以确定的校正量反馈控制向发动机供应燃料的速率。第一和第二个时期是彼此分开建立的。

52. 发明授权

US5758308A Fuel metering control system for internal combustion engine 失效
标题翻译：内燃机燃油计量控制系统
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
IPC分类号： F02D41/00 , F02D41/04 , F02D41/14 , F02D41/34
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。

53. 发明授权

US5732689A Air-fuel ratio control system for internal combustion engines 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5732689A
公开(公告)日：1998-03-31
申请号：US606382
申请日：1996-02-23
申请人： Hiroshi Ohno , Koichi Saiki , Yukio Noda , Shusuke Akazaki , Yoshitaka Takasuka , Yusuke Hasegawa
发明人： Hiroshi Ohno , Koichi Saiki , Yukio Noda , Shusuke Akazaki , Yoshitaka Takasuka , Yusuke Hasegawa
IPC分类号： F02D41/00 , F02D41/14 , F02D41/34 , F02D41/22
CPC分类号： F02D41/008 , F02D41/1441 , F02D41/2454 , F02D41/2474 , F02B2275/18 , F02D41/1456 , F02D41/2477
摘要： An air-fuel ratio control system for an internal combustion engine has an air-fuel ratio sensor arranged in an exhaust passage of the engine for detecting an air-fuel ratio of exhaust gases emitted from a plurality of cylinders. An output from the air-fuel ratio sensor is sampled whenever the engine rotates through a predetermined crank angle, and sampled values of the output from the air-fuel ratio sensor are sequentially stored. An output characteristic of the air-fuel ratio sensor is detected. One of the sampled values of the output from the air-fuel ratio sensor is selected at least depending on the output characteristic of the air-fuel ratio sensor. An air-fuel ratio of a mixture supplied to each of the cylinders is estimated, separately from other ones of the cylinders, based on selected ones of the sampled values of the output from the air-fuel ratio sensor and a model representative of a behavior of the exhaust passage. The air-fuel ratio of the mixture supplied to the each of the cylinders is controlled in a feedback manner responsive to the estimated air-fuel ratio of the mixture such that the estimated air-fuel ratio of the mixture supplied to the each of the cylinders is converged to a desired air-fuel ratio.
摘要翻译：用于内燃机的空燃比控制系统具有布置在发动机的排气通道中的空燃比传感器，用于检测从多个气缸排出的废气的空燃比。每当发动机旋转预定的曲柄角时，对空燃比传感器的输出进行采样，依次存储来自空燃比传感器的输出的采样值。检测空燃比传感器的输出特性。至少根据空燃比传感器的输出特性来选择空燃比传感器的输出的取样值之一。基于来自空燃比传感器的输出的取样值和代表行为的模型中的选定的一个来估计提供给每个气缸的混合物的空燃比与其它气缸分开地估计的排气通道。供给到每个气缸的混合物的空燃比以响应于混合物的估计空燃比的反馈方式进行控制，使得供给到每个气缸的混合物的估计空燃比收敛到期望的空燃比。

54. 发明授权

US5720265A Fuel metering control system for internal combustion engine 失效
标题翻译：内燃机燃油计量控制系统
公开(公告)号：US5720265A
公开(公告)日：1998-02-24
申请号：US514632
申请日：1995-08-14
申请人： Hidetaka Maki , Shusuke Akazaki , Yusuke Hasegawa , Yoichi Nishimura
发明人： Hidetaka Maki , Shusuke Akazaki , Yusuke Hasegawa , Yoichi Nishimura
IPC分类号： F02D13/02 , F02D41/14
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）。

55. 发明授权

US5701871A Fuel supply control system for internal combustion engines 失效
标题翻译：内燃机燃油供应控制系统
公开(公告)号：US5701871A
公开(公告)日：1997-12-30
申请号：US575070
申请日：1995-12-19
申请人： Hiroki Munakata , Yoichi Nishimura , Hiroshi Kitagawa , Shusuke Akazaki
发明人： Hiroki Munakata , Yoichi Nishimura , Hiroshi Kitagawa , Shusuke Akazaki
IPC分类号： F02D41/04 , F02D41/06 , F02D41/14
CPC分类号： F02D41/047
摘要： A fuel supply control system for an internal combustion engine calculates a basic amount of fuel to be supplied to the engine, based on the rotational speed of the engine and load on the engine. An amount of fuel adhering to the inner wall surface of the intake passage of the engine is estimated to calculate an adherent fuel-dependent correction amount. An amount of fuel carried off from the inner wall surface of the intake passage into at least one combustion chamber of the engine is estimated to calculate a carried-off fuel-dependent correction amount. The basic amount of fuel is corrected such that the air-fuel ratio of a mixture supplied to the engine becomes equal to a desired air-fuel ratio determined depending on operating conditions of the engine to obtain a corrected basic fuel amount, and at the same time the corrected basic fuel amount is corrected by the use of the adherent fuel-dependent correction amount and the carried-off fuel-dependent correction amount to calculate an amount of fuel to be supplied to the engine. At least one of the adherent fuel-dependent correction amount and the carried-off fuel-dependent correction amount is corrected according to the desired air-fuel ratio.
摘要翻译：用于内燃机的燃料供给控制系统基于发动机的转速和发动机的负荷来计算供给发动机的基本燃料量。估计附着在发动机的进气通路的内壁面上的燃料的量来计算粘附燃料相关的校正量。从进气通道的内壁表面传送到发动机的至少一个燃烧室中的燃料量被估计为计算取决于燃料的燃料相关校正量。燃料的基本量被校正为使得提供给发动机的混合物的空燃比变得等于根据发动机的操作条件确定的期望的空燃比以获得校正的基本燃料量，并且在相同的情况下通过使用粘附燃料依赖性校正量和排除燃料相关校正量来校正校正的基本燃料量，以计算要供给到发动机的燃料量。根据所需的空燃比校正粘附燃料依赖性校正量和排除燃料依赖校正量中的至少一个。

56. 发明授权

US5669368A Fuel metering control system for internal combustion engine 失效
标题翻译：内燃机燃油计量控制系统
公开(公告)号：US5669368A
公开(公告)日：1997-09-23
申请号：US606097
申请日：1996-02-23
申请人： Hidetaka Maki , Shusuke Akazaki , Yoichi Nishimura
发明人： Hidetaka Maki , Shusuke Akazaki , Yoichi Nishimura
IPC分类号： F02D41/14
CPC分类号： F02D41/1473 , F02D41/1402 , F02D41/1455 , F02D41/1477 , 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 the 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 determined in response to detected engine operating conditions, 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的基本量，以使检测到的空气/ 燃料比达到所需的空气/燃料比。在系统中，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响应于检测到的发动机操作条件而被确定。

57. 发明授权

US5657627A Air-fuel ratio control system for internal combustion engines 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5657627A
公开(公告)日：1997-08-19
申请号：US517857
申请日：1995-08-22
申请人： Shusuke Akazaki , Kotaro Miyashita , Ken Ogawa , Yoshihisa Hara
发明人： Shusuke Akazaki , Kotaro Miyashita , Ken Ogawa , Yoshihisa Hara
IPC分类号： F02D41/14
CPC分类号： F02D41/1441 , F02B2275/18 , F02D41/1456
摘要： An air-fuel ratio control system for an internal combustion engine having at least one catalytic converter arranged in the exhaust passage, comprises an ECU which changes air intake characteristics of the engine, based on operating conditions of the engine, and a plurality of exhaust gas component concentration sensors including at least upstream and downstream exhaust gas component concentration sensors arranged in the exhaust passage at respective locations upstream and downstream of the at least one catalytic converter. The air-fuel ratio of an air-fuel mixture to be supplied to the engine is controlled to a desired air-fuel ratio in a feedback manner responsive to an output from the upstream exhaust gas component concentration sensor. A feedback control parameter for use in the air-fuel ratio feedback control is calculated based on an output from the downstream exhaust gas component concentration sensor. The updating rate of the feedback control parameter is changed when the feedback control parameter is calculated, according to the air intake characteristics of the engine.
摘要翻译：一种用于内燃机的空燃比控制系统，其具有布置在排气通道中的至少一个催化转化器，包括基于发动机的运行条件改变发动机的进气特性的ECU，以及多个废气组分浓度传感器至少包括在所述至少一个催化转化器的上游和下游的相应位置处布置在所述排气通道中的上游和下游排气组分浓度传感器。供应到发动机的空气燃料混合物的空燃比以响应于上游排气组分浓度传感器的输出的反馈方式被控制到期望的空燃比。基于来自下游侧废气成分浓度传感器的输出，计算用于空燃比反馈控制的反馈控制参数。根据发动机的进气特性，计算反馈控制参数时，反馈控制参数的更新率发生变化。

58. 发明授权

US5638802A Fuel metering control system for internal combustion engine 失效
标题翻译：内燃机燃油计量控制系统
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
IPC分类号： F02D41/12 , F02D41/14 , G06G7/70
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。

59. 发明授权

US5606959A Fuel metering control system for internal combustion engine 失效
标题翻译：内燃机燃油计量控制系统
公开(公告)号：US5606959A
公开(公告)日：1997-03-04
申请号：US580480
申请日：1995-12-29
申请人： Hidetaka Maki , Shusuke Akazaki , Yusuke Hasegawa , Yoichi Nishimura
发明人： Hidetaka Maki , Shusuke Akazaki , Yusuke Hasegawa , Yoichi Nishimura
IPC分类号： F02D41/00 , F02D41/14 , F02D41/34
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。

60. 发明授权

US5548514A Air/fuel ratio estimation system for internal combustion engine 失效
标题翻译：内燃机空燃比估算系统
公开(公告)号：US5548514A
公开(公告)日：1996-08-20
申请号：US383204
申请日：1995-02-03
申请人： Yusuke Hasegawa , Isao Komoriya , Eisuke Kimura , Shusuke Akazaki , Yoichi Nishimura
发明人： Yusuke Hasegawa , Isao Komoriya , Eisuke Kimura , Shusuke Akazaki , Yoichi Nishimura
IPC分类号： F01L1/26 , F02D13/02 , F02D41/00 , F02D41/14 , G06G7/70 , F01N3/00
CPC分类号： F02D13/0257 , F01L1/267 , F02D13/0207 , F02D13/0215 , F02D13/0261 , F02D41/0002 , F02D41/1401 , F02D41/1443 , F02D41/1473 , F02D41/1481 , F02D2041/001 , F02D2041/1409 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1418 , F02D2041/1433 , F02D2200/0402 , F02D41/1441 , F02D41/1456 , Y02T10/18 , Y02T10/42
摘要： A system for estimating air/fuel ratios in the individual cylinders of a multicylinder internal combustion engine from an output of an air/fuel ratio sensor installed at an exhaust system of the engine. In the system, the exhaust system behavior is derived by a model in which X(k) is observed from a state equation and an output equation in which an input U(k) indicates air/fuel ratios in the individual cylinder and an output Y(k) indicates of the estimated air/fuel ratio asX(k+1)=AX(k)+BU(k)Y(k)=CX(k)+DU(k)where A, B, C and D are coefficients. And an observer is expressed by an equation using the output Y(k) as an input and the air/fuel ratios in the individual cylinders is estimated from the state variable X. In the system, the coefficient C is set to zero for a cylinder other than most recent m (2.ltoreq.m
摘要翻译：一种用于从安装在发动机的排气系统处的空气/燃料比传感器的输出来估计多缸内燃机的各个气缸中的空气/燃料比的系统。在该系统中，排气系统行为由其中从状态方程式观察到X（k）的模型和其中输入U（k）表示单独气缸中的空气/燃料比的输出方程和输出Y （k）表示A，B，C和D分别为X（k + 1）= AX（k）+ BU（k）Y（k）= CX（k）+ DU（k）系数。并且观察者由使用输出Y（k）作为输入的方程表示，并且从状态变量+ E，cir X + EE估计各个气缸中的空气/燃料比。在系统中，除了最近的m（2 n）气缸以外的气缸，系数C被设定为零。或者，预先准备多个观察者矩阵并同时计算。根据发动机工作状态或在多个特性之间切换的气门正时选择计算结果之一。

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