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公开(公告)号：US09926873B2
公开(公告)日：2018-03-27
申请号：US15204998
申请日：2016-07-08
发明人： Shinichi Okunishi , Ken Ogawa
CPC分类号： F02D41/1486 , F02D35/023 , F02D35/024 , F02D41/0007 , F02D41/0097 , F02D41/1458 , F02D41/34 , F02D2041/001 , F02D2041/1409 , F02D2041/1433 , F02D2200/023 , F02M57/005 , F02M2200/247 , Y02T10/44
摘要： An internal combustion engine control apparatus includes a cylinder pressure sensor, a driving condition detector, a reference crank angle setter, a reference cylinder pressure calculator, an air-fuel ratio estimator, and a controller. The cylinder pressure sensor detects a cylinder pressure. The driving condition detector detects a driving condition in an engine. The reference crank angle setter calculates a reference crank angle immediately before which an air-fuel mixture starts combusting in accordance with the driving condition. The reference cylinder pressure calculator calculates a reference cylinder pressure in the cylinder at the reference crank angle based on temperature characteristics of a specific-heat ratio of the air-fuel mixture under a condition. The air-fuel ratio estimator calculates an air-fuel ratio based on a pressure difference between the reference cylinder pressure and the cylinder pressure at the reference crank angle. The controller controls the engine in accordance with the air-fuel ratio.
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公开(公告)号：US09677491B2
公开(公告)日：2017-06-13
申请号：US13961628
申请日：2013-08-07
发明人： Hassene Jammoussi , Imad Hassan Makki , Mark Thomas Linenberg , Gladys G. Soriano , Kenneth John Behr
IPC分类号： F02D41/14
CPC分类号： F02D41/1495 , F02D41/1456 , F02D41/1486 , F02D2041/1423 , F02D2041/1431
摘要： Methods and systems are provided reusing processed sensor data to identify multiple types of sensor degradation. In one example, a central peak of a distribution, such as a generalized extreme value distribution, of sensor readings is re-used to identify asymmetric sensor degradation and stuck in-range sensor degradation.
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3.发明授权Non-intrusive exhaust gas sensor monitoring based on fuel vapor purge operation 有权基于燃油蒸气清洗操作的非侵入性废气传感器监测公开(公告)号：US09188045B2
公开(公告)日：2015-11-17
申请号：US13599744
申请日：2012-08-30
CPC分类号： F02D41/1454 , F01N11/007 , F02D41/003 , F02D41/0035 , F02D41/123 , F02D41/1486 , F02D41/1495 , Y02T10/47
摘要： A method of monitoring an exhaust gas sensor coupled in an engine exhaust in an engine is provided. The method includes adjusting engine operation responsive to exhaust gas sensor degradation, the degradation identified during deceleration fuel shut-off (DFSO) and compensated based on whether vapor purge operation is occurring in the engine during DFSO.
摘要翻译： 提供了一种监测联接在发动机的发动机排气中的排气传感器的方法。 该方法包括响应于废气传感器劣化，在减速燃料切断（DFSO）期间识别出的劣化并基于在DFSO期间是否在发动机中进行蒸汽吹扫操作来补偿的发动机运行。
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公开(公告)号：US20140326227A1
公开(公告)日：2014-11-06
申请号：US14348729
申请日：2012-09-27
申请人： Gerhard Eser , Wolfgang Moser , Sebastian Viehöver
发明人： Gerhard Eser , Wolfgang Moser , Sebastian Viehöver
IPC分类号： F02D41/14
CPC分类号： F02D41/1443 , F02D41/0085 , F02D41/1444 , F02D41/1454 , F02D41/1473 , F02D41/1486 , F02D41/1498 , F02D2041/1409 , F02D2041/1422 , G01M15/104
摘要： An internal combustion engine has a plurality of cylinders with fuel-metering injection valves, and an exhaust gas probe that generates a measurement signal characteristic of the air/fuel ratio in the respective cylinder. A correction signal for fuel mass to be metered is determined using a lambda controller as a function of the exhaust gas probe measurement signal. When at least one predefined condition is met within a predefined operating range of the engine, a cylinder-specific diagnosis relating to the emissions of pollutants is performed on the basis of unsmooth running, wherein the cylinder-specific diagnosis is actively performed only in a respective detection phase that is applied to a neutral value by a modified proportional discrete level of the correction signal and is performed with a modified integral parameter of the lambda controller that is reduced as compared with an integral parameter in a normal operating mode of the lambda controller.
摘要翻译： 内燃机具有多个具有燃料计量喷射阀的气缸和产生各气缸中的空燃比特性的测量信号的排气探头。 作为排气探头测量信号的函数，使用λ控制器来确定要计量的燃料质量的校正信号。 当在发动机的预定义的工作范围内满足至少一个预定条件时，基于不平滑运行来执行与污染物排放有关的气瓶特异性诊断，其中气缸专用诊断仅在相应的 检测阶段通过校正信号的修正的比例离散电平施加到中性值，并且使用与λ控制器的正常操作模式中的积分参数相比减小的λ控制器的修改的积分参数来执行。
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5.发明申请公开(公告)号：US20120209498A1
公开(公告)日：2012-08-16
申请号：US13500543
申请日：2009-10-06
申请人： Keiichiro Aoki , Yasushi Iwazaki
发明人： Keiichiro Aoki , Yasushi Iwazaki
IPC分类号： F02D41/26
CPC分类号： F02D41/1454 , F02D41/0085 , F02D41/1456 , F02D41/1486
摘要： An inter-cylinder air-fuel-ratio imbalance determination apparatus includes an air-fuel-ratio sensor in an exhaust passage of an engine. The air-fuel-ratio sensor functions as a limiting-current-type wide range air-fuel-ratio sensor when a voltage is applied, and functions as a concentration-cell-type oxygen concentration sensor when no voltage is applied. The determination apparatus causes the air-fuel-ratio sensor to function as the limiting-current-type wide range air-fuel-ratio sensor, and executes air-fuel ratio feedback control on the basis of the output value of the air-fuel-ratio sensor. When an imbalance determination parameter is obtained, the determination apparatus causes the air-fuel-ratio sensor to function as the concentration-cell-type oxygen concentration sensor, and obtains, as the imbalance determination parameter, a value corresponding to the differentiated value of the output value of the air-fuel-ratio sensor. The determination apparatus determines an inter-cylinder air-fuel-ratio imbalance state, when the absolute value of the imbalance determination parameter is greater than an imbalance determination threshold value.
摘要翻译： 气缸内空气比不平衡确定装置包括在发动机的排气通道中的空燃比传感器。 当施加电压时，空燃比传感器用作限流型宽范围空燃比传感器，并且当不施加电压时用作浓度电池型氧浓度传感器。 判定装置使空燃比传感器作为极限电流型宽范围空燃比传感器发挥功能，并且基于空燃比传感器的输出值来执行空燃比反馈控制， 比传感器 当获得不平衡确定参数时，确定装置使空燃比传感器用作浓度单元型氧浓度传感器，并且获得与不平衡确定参数对应的值 空燃比传感器的输出值。 当不平衡确定参数的绝对值大于不平衡确定阈值时，确定装置确定气缸间空燃比不平衡状态。
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公开(公告)号：US20120126882A1
公开(公告)日：2012-05-24
申请号：US13294534
申请日：2011-11-11
申请人： Claudius BEVOT , Thomas STEINERT , Thomas SCHULZ
发明人： Claudius BEVOT , Thomas STEINERT , Thomas SCHULZ
IPC分类号： H03K5/00
CPC分类号： G05B21/02 , F02D41/1401 , F02D41/1455 , F02D41/1477 , F02D41/1486
摘要： In a method for suppressing interference in a controlled variable in a control circuit, in which the actuating variable is the useful signal, the controlled variable is detected continuously, at two successive sampling instants in each case, the values of the controlled variable are subtracted, and if the absolute amount of the difference deviates by a predefinable setpoint value, at least one control parameter is modified, in such a way that the response of the actuating variable to the interference is minimized.
摘要翻译： 在抑制作用变量为有用信号的控制电路中的受控变量的干扰的方法中，连续地检测受控变量，在每种情况下，在两个连续采样时刻，减去受控变量的值， 并且如果差异的绝对量偏离预定的设定点值，则修改至少一个控制参数，使得致动变量对干扰的响应最小化。
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7.发明授权公开(公告)号：US07191771B2
公开(公告)日：2007-03-20
申请号：US10545040
申请日：2004-01-15
申请人： Alexander Ketterer , Hong Zhang
发明人： Alexander Ketterer , Hong Zhang
IPC分类号： F02D41/14
CPC分类号： F02D41/1486 , F02D41/068 , F02D41/2441 , F02D41/2454
摘要： The aim of the inventive method is to improve the emission values of an internal combustion engine during idling following a cold start. Said aim is achieved by inferring an adaptive value for the required fuel quantity from a characteristic curve in accordance with the temperature of the internal combustion engine and verifying during continuous lambda regulation whether predetermined adaptation conditions are met. If so, an adaptive value is determined from the parameters of the lambda regulator and the characteristic curve is adjusted according the newly determined adaptive value and the measured temperature of the internal combustion engine.
摘要翻译： 本发明方法的目的是在冷启动之后改善空转期间内燃机的排放值。 所述目的通过根据内燃机的温度从特性曲线推断所需燃料量的自适应值来实现，并且在连续λ调节期间验证是否满足预定的适应条件。 如果是这样，则根据λ调节器的参数确定自适应值，并且根据新确定的自适应值和内燃机的测量温度来调整特性曲线。
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8.发明申请公开(公告)号：US20060137667A1
公开(公告)日：2006-06-29
申请号：US10545040
申请日：2004-01-15
IPC分类号： F02D41/14
CPC分类号： F02D41/1486 , F02D41/068 , F02D41/2441 , F02D41/2454
摘要： The aim of the inventive method is to improve the emission values of an internal combustion engine during idling following a cold start. Said aim is achieved by inferring an adaptive value for the required fuel quantity from a characteristic curve in accordance with the temperature of the internal combustion engine and verifying during continuous lambda regulation whether predetermined adaptation conditions are met. If so, an adaptive value is determined from the parameters of the lambda regulator and the characteristic curve is adjusted according the newly determined adaptive value and the measured temperature of the internal combustion engine.
摘要翻译： 本发明方法的目的是在冷启动之后改善空转期间内燃机的排放值。 所述目的通过根据内燃机的温度从特性曲线推断所需燃料量的自适应值来实现，并且在连续λ调节期间验证是否满足预定的适应条件。 如果是这样，则根据λ调节器的参数确定自适应值，并且根据新确定的自适应值和内燃机的测量温度来调整特性曲线。
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公开(公告)号：US06578557B1
公开(公告)日：2003-06-17
申请号：US10310555
申请日：2002-12-05
申请人： Troy A. Messick
发明人： Troy A. Messick
IPC分类号： F02M500
CPC分类号： F02D41/061 , F02D41/0235 , F02D41/1446 , F02D41/1475 , F02D41/1479 , F02D41/1486 , F02D2041/1431 , F02D2200/0804
摘要： A method for regulation of an engine of a vehicle by manner of temperature control delays based on a target temperature of a component of the engine. Once enrichment has been triggered, enrichment is continued to ensure a temperature of the component is below its target for a specified time, thereby ensuring that the temperature of the component has not exceeded its target temperature for more than a certain percentage of its life.
摘要翻译： 一种基于发动机部件的目标温度的温度控制延迟来调节车辆的发动机的方法。 一旦浓缩被触发，继续浓缩以确保组分的温度在指定时间内低于其目标，从而确保组分的温度在其一定比例的寿命内未超过其目标温度。
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公开(公告)号：US20030089358A1
公开(公告)日：2003-05-15
申请号：US10290250
申请日：2002-11-08
发明人： Shigeo Ohkuma , Futoshi Ichiyanagi
IPC分类号： F02D041/14
CPC分类号： F02D41/1486 , F02D41/1456 , F02D41/1496
摘要： A temperature of an oxygen concentration detector generating an electromotive force according to a difference between oxygen concentration in an engine exhaust gas and oxygen concentration in the atmosphere, is detected, and coefficients in a transformation for converting the electromotive force to a value having a characteristic linear to an air-fuel ratio is modified according to the temperature.
摘要翻译： 检测根据发动机排气中的氧浓度与大气中的氧浓度之间的差产生电动势的氧浓度检测器的温度，将电动势变换为具有特征线性的值的变换中的系数 空燃比根据温度而变化。
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