公开(公告)号：US20150040539A1

公开(公告)日：2015-02-12

申请号：US13961239

申请日：2013-08-07

Applicant: GM Global Technology Operations LLC

Inventor： Vincent J. Tylutki ,  Benjamin Radke ,  Janean E. Kowalkowski

IPC: F01N3/025 ,  F01N11/00

CPC classification number: F01N3/0256 ,  F01N3/103 ,  F01N3/2033 ,  F01N3/2066 ,  F01N9/002 ,  F01N11/002 ,  F01N13/008 ,  F01N13/009 ,  F01N2550/04 ,  F01N2550/05 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/03 ,  F01N2900/0408 ,  F01N2900/0416 ,  F01N2900/1602 ,  F01N2900/1631 ,  F01N2900/18 ,  Y02T10/26 ,  Y02T10/47

Abstract: An exhaust gas treatment system includes a particulate filter to collect particulate matter from exhaust gas flowing therethrough. A regeneration module performs a regeneration operation that regenerates the particular filter. The regeneration operation generates an exothermic event which heats the particulate filter above a target temperature that burns the particulate matter. At least one temperature sensor is disposed adjacent the particular filter to determine at least one temperature of the exhaust gas. The exhaust gas treatment system further includes a temperature diagnostic module to determine a temperature profile of the particulate filter based on the temperature of the exhaust gas. The temperature diagnostic module further determines a temperature deviation of the particulate filter based on a comparison between the temperature profile and a target temperature. The temperature diagnostic module diagnoses the regeneration operation based on a plurality of temperature deviations and a selected time period.

Abstract translation: 废气处理系统包括微粒过滤器，用于从流过其中的废气中收集颗粒物质。 再生模块执行再生特定过滤器的再生操作。 再生操作产生放热事件，其将颗粒过滤器加热到燃烧颗粒物质的目标温度之上。 至少一个温度传感器设置在特定过滤器附近以确定废气的至少一个温度。 废气处理系统还包括温度诊断模块，用于基于废气的温度确定微粒过滤器的温度分布。 温度诊断模块还基于温度分布和目标温度之间的比较来确定微粒过滤器的温度偏差。 温度诊断模块基于多个温度偏差和选定的时间段来诊断再生操作。

公开(公告)号：US20140366515A1

公开(公告)日：2014-12-18

申请号：US13916842

申请日：2013-06-13

Applicant: GM Global Technology Operations LLC

Inventor： Janean E. Kowalkowski ,  Vincent J. Tylutki ,  Benjamin Radke ,  Manoharan Thiagarajan

IPC: F01N3/021 ,  G01M15/10

CPC classification number: F01N3/021 ,  F01N9/002 ,  F01N11/00 ,  F01N2550/04 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2900/0402 ,  F01N2900/0412 ,  G01M15/106 ,  Y02T10/47

Abstract: An exhaust gas treatment system includes a particulate filter to collect particulate matter from exhaust gas flowing therethrough. The particulate filter realizes a pressure thereacross in response to the exhaust gas flow. A delta pressure sensor determines a first pressure upstream from the particulate filter and a second pressure downstream from the particulate filter. A delta pressure module is in electrical communication with the delta pressure sensor. The delta pressure module determines a pressure differential value based on a difference between the first pressure and the second pressure and generates a diagnostic signal based on a plurality of the pressure differential values and a predetermined time period.

Abstract translation: 废气处理系统包括微粒过滤器，用于从流过其中的废气中收集颗粒物质。 颗粒过滤器响应于废气流量实现其上的压力。 δ压力传感器确定微粒过滤器上游的第一压力和颗粒过滤器下游的第二压力。 增量压力模块与delta压力传感器电连通。 增量压力模块基于第一压力和第二压力之间的差异来确定压力差值，并且基于多个压力差值和预定时间段产生诊断信号。

公开(公告)号：US20140122020A1

公开(公告)日：2014-05-01

申请号：US14055092

申请日：2013-10-16

Applicant: GM Global Technology Operations LLC

Inventor： Janean E. Kowalkowski ,  Igor Anilovich ,  Jason J. Chung

IPC: G06F17/18

CPC classification number: G06F17/18 ,  F01N11/00 ,  F01N2560/026 ,  F02D41/146 ,  F02D41/222 ,  F02D2041/1432 ,  Y02T10/40 ,  Y02T10/47

Abstract: A method of increasing a weighting factor of an exponentially weighted moving averaging (“EWMA”) filter is provided. The method includes monitoring a data stream containing raw data values, and determining an EWMA value based on the data stream by an electronic control module. The method includes determining if the EWMA value is between a predetermined maximum fault threshold value and a predetermined minimum fault threshold value. The method includes increasing the weighting factor of the EWMA filter to more heavily weigh incoming raw data values of the data stream based on the difference between the first raw data value and a previously calculated filtered value exceeding the calibration value.

Abstract translation: 提供了一种增加指数加权移动平均（“EWMA”）滤波器的加权因子的方法。 该方法包括监视包含原始数据值的数据流，以及由电子控制模块基于数据流确定EWMA值。 该方法包括确定EWMA值是否在预定的最大故障阈值和预定的最小故障阈值之间。 该方法包括基于第一原始数据值和超过校准值的先前计算的滤波值之间的差异来增加EWMA滤波器的加权因子以更大地权衡数据流的输入原始数据值。