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公开(公告)号：US09556766B2
公开(公告)日：2017-01-31
申请号：US14404811
申请日：2013-05-28
Applicant: Continental Automotive GmbH
Inventor： Thomas Burkhardt , Sebastian Viehoever , Andreas Hofmann , Harsha Mahaveera , Jan-Richard Lenk
CPC classification number: F01M13/023 , F01M11/10 , F01M2013/0094 , F02D41/08 , F02D41/18 , F02D41/22 , F02D41/221 , F02D2200/0402 , F02D2200/0406 , Y02T10/40
Abstract: An internal combustion engine has a crankcase and a crankcase ventilation system having a switchable shut-off valve, and sensors that detect different operating parameters of the engine, including a load variable of the engine. An estimated load parameter is determined based on the different detected operating parameters using a dynamic model, and a corrective value of a characteristic value is determined as a function of a deviation between the estimated load variable and the detected load variable. To implement a diagnosis, diagnosis switching cycle(s) are controlled, in which the shut-off valve is set to a closed switched position for a first time and set to an open switched position for a second time. A diagnosis value representative of a shut-off valve being in a correct or incorrect state is determined based on a change to the corrective value in response to the one or the plurality of diagnosis switching cycles.
Abstract translation: 内燃机具有曲轴箱和具有可切换截止阀的曲轴箱通风系统，以及检测发动机的不同运行参数的传感器，包括发动机的负载变量。 基于使用动态模型的不同的检测到的操作参数来确定估计的负载参数，并且根据估计的负载变量和检测到的负载变量之间的偏差确定特征值的校正值。 为了实施诊断，控制诊断切换循环，其中截止阀首次被设置为闭合切换位置并且被设置为打开的切换位置第二次。 基于响应于一个或多个诊断切换循环对校正值的改变来确定表示处于正确或不正确状态的截止阀的诊断值。
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2.发明授权Method and device for detecting different exhaust gas probe errors during the operation of an internal combustion engine 有权用于在内燃机操作期间检测不同排气探头误差的方法和装置公开(公告)号：US09441567B2
公开(公告)日：2016-09-13
申请号：US14348671
申请日：2012-09-27
Applicant: CONTINENTAL AUTOMOTIVE GMBH
Inventor： Harsha Mahaveera , Tino Arlt
CPC classification number: F02D41/1473 , F02D41/1439 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D41/1495 , F02D41/2422 , F02D2041/1431 , F02D2041/1432 , F02D2041/227
Abstract: To operate an internal combustion engine, a specified forced stimulation is applied to an air ratio as the basis for a target value of a lambda controller. In diagnostic operation, a diagnostic function is used to identify a probe error of the exhaust gas probe, and a value of the measurement signal is recorded as a start value in chronological correlation with an edge of the target value curve of the lambda controller and the current value of the measurement signal is recorded as an end value after a specified first time duration. The start and end values are used to determine whether a filter error or a dead time error of the exhaust gas probe exists. The first time duration is specified such that start value/end value difference for a filter error differs start value/end value difference for a dead time error by at least a specified difference value.
Abstract translation: 为了操作内燃机，将指定的强制刺激应用于空气比作为λ控制器的目标值的基础。 在诊断操作中，使用诊断功能来识别排气探头的探测误差，并且测量信号的值被记录为与λ控制器的目标值曲线的边缘按时间顺序相关的起始值，并且 测量信号的当前值在指定的第一时间段之后记录为结束值。 开始和结束值用于确定是否存在废气探头的过滤器误差或死区时间误差。 指定第一持续时间，使得过滤器误差的起始值/结束值差异将死区时间误差的起始值/结束值差异至少不同于指定的差值。
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公开(公告)号：US20150114326A1
公开(公告)日：2015-04-30
申请号：US14404811
申请日：2013-05-28
Applicant: Continental Automotive GmbH
Inventor： Thomas Burkhardt , Sebastian Viehoever , Andreas Hofmann , Harsha Mahaveera , Jan-Richard Lenk
CPC classification number: F01M13/023 , F01M11/10 , F01M2013/0094 , F02D41/08 , F02D41/18 , F02D41/22 , F02D41/221 , F02D2200/0402 , F02D2200/0406 , Y02T10/40
Abstract: An internal combustion engine has a crankcase and a crankcase ventilation system having a switchable shut-off valve, and sensors that detect different operating parameters of the engine, including a load variable of the engine. An estimated load parameter is determined based on the different detected operating parameters using a dynamic model, and a corrective value of a characteristic value is determined as a function of a deviation between the estimated load variable and the detected load variable. To implement a diagnosis, diagnosis switching cycle(s) are controlled, in which the shut-off valve is set to a closed switched position for a first time and set to an open switched position for a second time. A diagnosis value representative of a shut-off valve being in a correct or incorrect state is determined based on a change to the corrective value in response to the one or the plurality of diagnosis switching cycles.
Abstract translation: 内燃机具有曲轴箱和具有可切换截止阀的曲轴箱通风系统，以及检测发动机的不同运行参数的传感器，包括发动机的负载变量。 基于使用动态模型的不同的检测到的操作参数来确定估计的负载参数，并且根据估计的负载变量和检测到的负载变量之间的偏差确定特征值的校正值。 为了实施诊断，控制诊断切换循环，其中截止阀首次被设置为闭合切换位置并且被设置为打开的切换位置第二次。 基于响应于一个或多个诊断切换循环对校正值的改变来确定表示处于正确或不正确状态的截止阀的诊断值。
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4.发明申请公开(公告)号：US20140325960A1
公开(公告)日：2014-11-06
申请号：US14348671
申请日：2012-09-27
Applicant: CONTINENTAL AUTOMOTIVE GMBH
Inventor： Harsha Mahaveera , Tino Arlt
IPC: F02D41/14
CPC classification number: F02D41/1473 , F02D41/1439 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D41/1495 , F02D41/2422 , F02D2041/1431 , F02D2041/1432 , F02D2041/227
Abstract: To operate an internal combustion engine, a specified forced stimulation is applied to an air ratio as the basis for a target value of a lambda controller. In diagnostic operation, a diagnostic function is used to identify a probe error of the exhaust gas probe, and a value of the measurement signal is recorded as a start value in chronological correlation with an edge of the target value curve of the lambda controller and the current value of the measurement signal is recorded as an end value after a specified first time duration. The start and end values are used to determine whether a filter error or a dead time error of the exhaust gas probe exists. The first time duration is specified such that start value/end value difference for a filter error differs start value/end value difference for a dead time error by at least a specified difference value.
Abstract translation: 为了操作内燃机，将指定的强制刺激应用于空气比作为λ控制器的目标值的基础。 在诊断操作中，使用诊断功能来识别排气探头的探测误差，并且测量信号的值被记录为与λ控制器的目标值曲线的边缘按时间顺序相关的起始值，并且 测量信号的当前值在指定的第一时间段之后记录为结束值。 开始和结束值用于确定是否存在废气探头的过滤器误差或死区时间误差。 指定第一持续时间，使得过滤器误差的起始值/结束值差异将死区时间误差的起始值/结束值差异至少不同于指定的差值。
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