公开(公告)号：US20150267590A1

公开(公告)日：2015-09-24

申请号：US14217765

申请日：2014-03-18

Applicant: GM Global Technology Operations LLC

Inventor： Min Sun ,  Michelangelo Ardanese ,  Raffaello Ardanese ,  Vincent J. Tylutki ,  Giuseppe Schiavone

IPC: F01N11/00

CPC classification number: F01N11/002 ,  F01N3/023 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/08 ,  F01N2900/1602 ,  F01N2900/1606 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust treatment system to treat exhaust gas includes a particulate filter configured to trap soot contained in the exhaust gas, and a pressure sensor that outputs a pressure signal indicative of a pressure differential of the particulate filter. A soot mass module is configured to determine a soot mass indicative of an amount of soot stored in the particulate filter based on the pressure differential. The soot mass is selectively determined according to a first soot model or a second soot model. An adaptation soot load module corrects the first soot model based on the second soot model such that the first soot model is adapted to the second soot model. A frequency regeneration module determines an actual rate at which the first soot model is corrected. The frequency regeneration module further determines the particulate filter is excessively regenerated based on the actual rate and a threshold.

Abstract translation: 用于处理废气的废气处理系统包括：微粒过滤器，其构造成捕集废气中包含的煤烟;以及压力传感器，其输出表示微粒过滤器的压力差的压力信号。 烟灰块模块被配置为基于压差来确定指示存储在微粒过滤器中的烟灰量的烟灰质量。 烟灰块根据第一烟灰模型或第二烟炱模型选择性地确定。 适应烟灰装载模块基于第二烟灰模型校正第一烟灰模型，使得第一烟灰模型适应于第二烟灰模型。 频率再生模块确定校正第一烟灰模型的实际速率。 频率再生模块进一步确定微粒过滤器基于实际速率和阈值而过度再生。

公开(公告)号：US09109495B2

公开(公告)日：2015-08-18

申请号：US13961939

申请日：2013-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Justin Adam Shetney ,  Min Sun

IPC: F01N11/00 ,  F01N13/00 ,  B01D53/94 ,  F01N3/20

CPC classification number: F01N11/002 ,  B01D53/9418 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2257/404 ,  B01D2258/012 ,  F01N3/208 ,  F01N13/0093 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/1602 ,  F01N2900/1621 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: System and methods can identify a source of nitrogen oxide reduction inefficiency in an exhaust system including first and second selective catalytic reduction (SCR) catalysts connected in series along an exhaust line. The methods and systems can determine which of the first and second SCR catalysts is a source of nitrogen oxide reduction inefficiency based on the temperatures of the exhausts gases flowing through the first and second SCR catalysts.

Abstract translation: 系统和方法可以识别排气系统中的氮氧化物还原效率低的源，包括沿排气管串联连接的第一和第二选择性催化还原（SCR）催化剂。 方法和系统可以基于流过第一和第二SCR催化剂的排气的温度，确定第一和第二SCR催化剂中的哪一种是氮氧化物还原效率低的源。

公开(公告)号：US20150211962A1

公开(公告)日：2015-07-30

申请号：US14168485

申请日：2014-01-30

Applicant: GM Global Technology Operations LLC

Inventor： Min Sun ,  Michelangelo Ardanese ,  Michele Bilancia ,  Giorgio Sticchi

IPC: G01M15/10 ,  G01N33/00

CPC classification number: G01M15/102 ,  G01N33/0036 ,  Y02A50/25

Abstract: A method of estimating a current soot output from an engine includes sensing a mass flow rate of a flow of exhaust gas from the engine, and defining a soot output base rate of the engine when the engine is operating at a reference state. A soot ratio for a current operating state of the engine is calculated. The mass flow rate, the soot output base rate, and the soot ratio are multiplied together to define an estimated value of the current soot output from the engine. The soot ratio is based on current engine operating parameters, including an air/fuel ratio of the engine, an exhaust gas recirculation ratio of the engine, a fuel injection pressure of the engine, and a fuel injection timing of the engine.

Abstract translation: 估计来自发动机的当前烟灰输出的方法包括感测来自发动机的废气流的质量流量，并且当发动机在参考状态下操作时，确定发动机的烟灰输出基本速率。 计算发动机的当前运行状态的烟灰比。 将质量流量，烟灰输出基准率和烟灰比相乘在一起以定义从发动机输出的当前烟灰的估计值。 烟炱比基于目前的发动机操作参数，包括发动机的空气/燃料比，发动机的废气再循环比，发动机的燃料喷射压力和发动机的燃料喷射正时。