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公开(公告)号：US09080494B2
公开(公告)日：2015-07-14
申请号：US13154890
申请日：2011-06-07
CPC分类号： F01N11/00 , F01N2550/04 , F01N2900/0422 , F01N2900/08 , F01N2900/102 , F01N2900/1606 , Y02T10/47
摘要： A method of monitoring regeneration of a particulate filter is provided. The method includes evaluating whether a regeneration event is based on a fixed threshold condition; selectively setting a pass or fail status based on the evaluating; and generating a message indicating the pass or fail status.
摘要翻译： 提供了一种监测微粒过滤器再生的方法。 该方法包括评估再生事件是否基于固定阈值条件; 基于评估选择性地设置通过或失败状态; 并产生指示通过或失败状态的消息。
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2.发明授权Exhaust diagnostic systems and methods for resetting after operation with poor reductant quality 有权排气诊断系统和操作后复位的方法，还原剂质量差公开(公告)号：US08286419B2
公开(公告)日：2012-10-16
申请号：US12606483
申请日：2009-10-27
申请人： Stephen Paul Levijoki , Scott R. Gordon , Cheryl J Stark , Paul Jasinkiewicz , Brett B Thompson
发明人： Stephen Paul Levijoki , Scott R. Gordon , Cheryl J Stark , Paul Jasinkiewicz , Brett B Thompson
IPC分类号： F01N3/00
CPC分类号： F01N11/002 , F01N3/208 , F01N2550/02 , F01N2610/02 , F01N2610/03 , F01N2610/146 , F01N2900/1602 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： An exhaust diagnostic system includes a selective catalyst reduction (SCR) efficiency testing module that determines an efficiency of a SCR catalyst. An exhaust gas temperature management module selectively adjusts a temperature of the SCR catalyst to a predetermined temperature range using intrusive exhaust gas temperature management. A test enabling module initiates an SCR efficiency test using the SCR efficiency module after failing a prior SCR efficiency test and while the temperature of the SCR catalyst is within the predetermined temperature range.
摘要翻译： 排气诊断系统包括决定SCR催化剂效率的选择性催化剂还原（SCR）效率测试模块。 排气温度管理模块通过侵入式排气温度管理选择性地将SCR催化剂的温度调节到预定的温度范围。 测试启用模块在先前的SCR效率测试失败之后和SCR催化剂的温度在预定温度范围内时，使用SCR效率模块启动SCR效率测试。
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公开(公告)号：US09133750B2
公开(公告)日：2015-09-15
申请号：US12683740
申请日：2010-01-07
CPC分类号： F01N3/208 , F01N2560/026 , F01N2610/02 , F01N2900/1614 , Y02T10/24
摘要： A method and control system for a selective catalytic reduction (SCR) catalytic converter and an ammonia dosing module that stores ammonia in a selective catalyst reducing (SCR) catalyst and that depletes the ammonia level by discontinuing or reducing dosing. The control system also includes an SCR conversion efficiency module that determines an SCR efficiency. An SCR efficiency comparison module compares the SCR efficiency to an efficiency threshold and generates a fault indicator when the SCR efficiency is not above the efficiency threshold.
摘要翻译： 用于选择性催化还原（SCR）催化转化器和氨计量模块的方法和控制系统，其将氨存储在选择性催化还原（SCR）催化剂中，并通过中断或减少剂量来消耗氨水平。 该控制系统还包括SCR转换效率模块，其确定SCR效率。 SCR效率比较模块将SCR效率与效率阈值进行比较，当SCR效率不高于效率阈值时，生成故障指示器。
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公开(公告)号：US08047046B2
公开(公告)日：2011-11-01
申请号：US12366130
申请日：2009-02-05
IPC分类号： G01F19/00
CPC分类号： G01F25/0061 , G01F25/0076
摘要： A sensor diagnostic system comprises first, second, and third dosing agent sensors and a control module. The first, second, and third dosing agent sensors indicate whether a dosing agent is present at first, second, and third volumetric levels of a dosing agent tank, respectively. The second volumetric level is greater than the first volumetric level and the third volumetric level is greater than the second volumetric level. The control module selectively diagnoses a sensor fault in at least one of the first, second, and third dosing agent sensors based on the indications of the first, second, and third dosing agent sensors.
摘要翻译： 传感器诊断系统包括第一，第二和第三计量剂传感器和控制模块。 第一，第二和第三给药剂传感器分别指示给药剂是否分别存在于给药剂罐的第一，第二和第三体积水平。 第二体积水平大于第一体积水平，第三体积水平大于第二体积水平。 控制模块基于第一，第二和第三计量剂传感器的指示来选择性地诊断第一，第二和第三计量剂传感器中的至少一个中的传感器故障。
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