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1. 发明授权

US10060377B2 Method for determining an imbalance of at least one cylinder 有权
公开(公告)号：US10060377B2
公开(公告)日：2018-08-28
申请号：US14705060
申请日：2015-05-06
申请人： Robert Bosch GmbH
发明人： Klaus Winkler , Henrico Runge , Benjamin Sillmann , Hartwig Lehle , Eduard Weiss
IPC分类号： F02D41/34 , F02D41/14 , F02D41/24 , F02D41/04 , F02D41/28
CPC分类号： F02D41/2458 , F02D41/04 , F02D41/1495 , F02D41/34 , F02D2041/1423 , F02D2041/288
摘要： A method for determining an imbalance of at least one cylinder in an arrangement of at least two cylinders in a system is provided, which includes an internal combustion engine, the imbalance of the at least one cylinder being present in relation to at least one property of an exhaust gas of the internal combustion engine and the determination of the imbalance of the at least one cylinder occurring with a sensor device for detecting at least one property of the exhaust gas of the internal combustion engine. A diagnostic threshold is ascertained through a dynamic characterization of the system with the sensor device, the dynamic characterization taking place after an excitation of the system. The diagnostic threshold makes it possible to delimit a range of potential erroneous detections which are caused due to a dispersion of an evaluating signal resulting from the imbalance of the at least one cylinder.

2. 发明申请

US20150322880A1 Method for determining an imbalance of at least one cylinder 审中-公开
标题翻译：用于确定至少一个气缸的不平衡的方法
公开(公告)号：US20150322880A1
公开(公告)日：2015-11-12
申请号：US14705060
申请日：2015-05-06
申请人： Robert Bosch GmbH
发明人： Klaus Winkler , Henrico Runge , Benjamin Sillmann , Hartwig Lehle , Eduard Weiss
IPC分类号： F02D41/34 , F02D41/04
CPC分类号： F02D41/2458 , F02D41/04 , F02D41/1495 , F02D41/34 , F02D2041/1423 , F02D2041/288
摘要： A method for determining an imbalance of at least one cylinder in an arrangement of at least two cylinders in a system is provided, which includes an internal combustion engine, the imbalance of the at least one cylinder being present in relation to at least one property of an exhaust gas of the internal combustion engine and the determination of the imbalance of the at least one cylinder occurring with a sensor device for detecting at least one property of the exhaust gas of the internal combustion engine. A diagnostic threshold is ascertained through a dynamic characterization of the system with the sensor device, the dynamic characterization taking place after an excitation of the system. The diagnostic threshold makes it possible to delimit a range of potential erroneous detections which are caused due to a dispersion of an evaluating signal resulting from the imbalance of the at least one cylinder.
摘要翻译：提供了一种用于确定系统中的至少两个气缸的布置中的至少一个气缸的不平衡的方法，其包括内燃机，所述至少一个气缸的不平衡相对于至少一个气缸的至少一个性质存在所述内燃机的废气以及用于检测所述内燃机的废气的至少一种性质的传感器装置发生的所述至少一个气缸的不平衡的确定。通过使用传感器设备的系统的动态特性来确定诊断阈值，动态特性在系统激励之后发生。诊断阈值使得可以限定由于至少一个气缸的不平衡导致的评估信号的偏差而引起的潜在错误检测的范围。

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