公开(公告)号：US09441525B2

公开(公告)日：2016-09-13

申请号：US14701823

申请日：2015-05-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher C. Swoish ,  Douglas Christopher Sarsen ,  Christopher Whitt ,  Thomas Larose, Jr.

IPC: F01N3/00 ,  F01N3/02 ,  F01N3/10 ,  F01N3/20 ,  F01N9/00 ,  F01N3/021 ,  F02D41/02 ,  F02D41/00

CPC classification number: F01N9/002 ,  F01N3/021 ,  F01N9/005 ,  F01N2900/0601 ,  F01N2900/08 ,  F01N2900/14 ,  F02D41/0007 ,  F02D41/029 ,  F02D41/1467 ,  F02D2200/0812 ,  Y02T10/144 ,  Y02T10/47

Abstract: An internal combustion engine is fluidly coupled to an exhaust aftertreatment system including a particulate filter. A method for operating the internal combustion engine includes determining an expected boost pressure of an intake air compressor system in response to an output torque request, determining a deviation between an actual boost pressure and the expected boost pressure, determining a engine-out soot generation rate correction based upon the deviation between the actual boost pressure and the expected boost pressure, adjusting a steady-state engine-out soot generation rate using the engine-out soot generation rate correction, time-integrating the adjusted steady-state engine-out soot generation rate, and commanding regeneration of the particulate filter when the time-integrated adjusted engine-out soot generation rate exceeds a predetermined threshold.

Abstract translation: 内燃机流体耦合到包括微粒过滤器的排气后处理系统。 用于操作内燃机的方法包括响应于输出转矩请求确定进气压缩机系统的预期增压压力，确定实际增压压力和预期增压压力之间的偏差，确定发动机熄火烟灰发生率 基于实际增压压力和预期增压压力之间的偏差进行校正，使用发动机熄火烟灰产生速率校正来调节稳态发动机熄火烟灰产生速率，将调整后的稳态发动机熄火烟灰产生 速度，并且当时间一体化调节发动机熄灭烟灰产生速率超过预定阈值时，微粒过滤器的命令再生。

公开(公告)号：US20150068192A1

公开(公告)日：2015-03-12

申请号：US14022871

申请日：2013-09-10

Applicant: GM Global Technology Operations LLC

Inventor： Christopher C. Swoish ,  Douglas Christopher Sarsen ,  Christopher Whitt ,  Thomas Larose, JR.

IPC: F01N3/023

CPC classification number: F01N3/023 ,  F01N3/0231 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/026 ,  F01N2900/1402 ,  F01N2900/1606 ,  F02D41/029 ,  F02D41/1461 ,  F02D41/1467 ,  F02D2200/0812 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust treatment system to treat exhaust gas includes a particulate filter and a pressure sensor. The particulate filter is configured to trap soot contained in exhaust gas. The pressure sensor is configured to output a pressure signal indicative of a pressure differential of the particulate filter. The exhaust treatment system further includes a soot mass module configured to determine a soot mass. The soot mass is indicative of an amount of soot stored in the particulate filter based on the pressure differential and a soot model stored in a memory device. The exhaust treatment system further includes a continuously regenerating trap (CRT) compensation module configured to generate a variable CRT threshold. The CRT compensation module selectively outputs a CRT compensation value that modifies the soot model based on comparison between the NOx flow rate and the soot mass-based variable CRT threshold.

Abstract translation: 用于处理废气的废气处理系统包括微粒过滤器和压力传感器。 微粒过滤器被配置成捕集废气中所含的烟灰。 压力传感器被配置为输出表示微粒过滤器的压力差的压力信号。 废气处理系统还包括配置成确定烟灰质量的烟灰质量模块。 烟灰质量基于压差和存储在存储装置中的烟尘模型来指示存储在微粒过滤器中的烟灰量。 排气处理系统还包括被配置为产生可变CRT阈值的连续再生陷阱（CRT）补偿模块。 CRT补偿模块基于NOx流量和基于烟灰质量的可变CRT阈值之间的比较选择性地输出修正烟灰模型的CRT补偿值。

公开(公告)号：US20140352281A1

公开(公告)日：2014-12-04

申请号：US13909627

申请日：2013-06-04

Applicant: GM Global Technology Operations LLC

Inventor： Christopher Whitt ,  Douglas Christopher Sarsen ,  Christopher C. Swoish

IPC: F01N11/00

CPC classification number: F01N11/00 ,  F02D41/029 ,  F02D2200/0812 ,  F02D2250/26

Abstract: A particulate filter device monitoring system for an internal combustion engine includes a particulate accumulation register configured to store an amount of particulate in a particulate filter. The particulate accumulation register includes a particulate accumulation trigger zone having a power limiting mode trigger. A power limiting mode trigger module is configured to limit output power of the internal combustion engine when the amount of particulate accumulation reaches the power limiting mode trigger. A particulate accumulation model module includes a particulate accumulation model configured to calculate changes in particulate accumulation in the particulate accumulation register at a first sampling rate when particulate accumulation is outside the particulate accumulation trigger zone, and at a second sampling rate when particulate accumulation is within the particulate accumulation trigger zone.

Abstract translation: 用于内燃机的微粒过滤器装置监测系统包括微粒积聚寄存器，其构造成将微粒过滤器中的一些颗粒物质储存。 颗粒物积聚寄存器包括具有功率限制模式触发的微粒累积触发区。 功率限制模式触发模块被配置为当微粒累积量达到功率限制模式触发时，限制内燃机的输出功率。 颗粒蓄积模型模块包括颗粒蓄积模型，其被配置为当颗粒聚集在颗粒蓄积触发区之外时以第一采样率计算颗粒蓄积寄存器中颗粒物积聚的变化，并且当颗粒积聚在 颗粒蓄积触发区。

公开(公告)号：US09080483B2

公开(公告)日：2015-07-14

申请号：US13672135

申请日：2012-11-08

Applicant: GM Global Technology Operations LLC

Inventor： Thomas LaRose, Jr. ,  Christopher Whitt ,  Christopher C. Swoish ,  Douglas Christopher Sarsen

IPC: F01N3/00 ,  F01N3/02 ,  F01N3/10 ,  F01N3/20 ,  F01N3/025 ,  F01N9/00 ,  F01N13/00

CPC classification number: F01N3/025 ,  F01N3/0253 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2430/085 ,  F01N2610/03 ,  F01N2900/08 ,  F01N2900/1606 ,  Y02T10/24 ,  Y02T10/47

Abstract: In one exemplary embodiment of the invention, a method for controlling regeneration for an exhaust system of an internal combustion engine, wherein the exhaust system includes a particulate filter is provided, where the method includes determining a mass flow rate of oxygen received from the internal combustion engine, determining a particulate mass within the particulate filter, determining a desired particulate burn rate based on the mass flow rate of oxygen and the particulate mass and determining a current particulate burn rate. The method also includes determining a correction value based on the desired particulate burn rate and the current particulate burn rate, determining a temperature set point for exhaust gas entering the particulate filter based on the correction value, an engine speed and an engine load and communicating a signal, from a controller, to control a parameter for a regeneration system based on the determined temperature set point.

Abstract translation: 在本发明的一个示例性实施例中，提供了一种用于控制内燃机的排气系统的再生的方法，其中所述排气系统包括微粒过滤器，其中所述方法包括确定从内燃机接收的氧的质量流量 发动机，确定颗粒过滤器内的颗粒物质，基于氧气和颗粒物质的质量流率确定所需的颗粒燃烧速率并确定当前颗粒燃烧速率。 该方法还包括基于期望的颗粒燃烧速率和当前的颗粒燃烧速率来确定校正值，基于校正值，发动机转速和发动机负载来确定进入微粒过滤器的废气的温度设定点，并将 信号，从控制器，基于所确定的温度设定点来控制再生系统的参数。

公开(公告)号：US09366172B2

公开(公告)日：2016-06-14

申请号：US13909627

申请日：2013-06-04

Applicant: GM Global Technology Operations LLC

Inventor： Christopher Whitt ,  Douglas Christopher Sarsen ,  Christopher C. Swoish

IPC: F01N3/00 ,  F01N11/00 ,  F02D41/02

CPC classification number: F01N11/00 ,  F02D41/029 ,  F02D2200/0812 ,  F02D2250/26

Abstract: A particulate filter device monitoring system for an internal combustion engine includes a particulate accumulation register configured to store an amount of particulate in a particulate filter. The particulate accumulation register includes a particulate accumulation trigger zone having a power limiting mode trigger. A power limiting mode trigger module is configured to limit output power of the internal combustion engine when the amount of particulate accumulation reaches the power limiting mode trigger. A particulate accumulation model module includes a particulate accumulation model configured to calculate changes in particulate accumulation in the particulate accumulation register at a first sampling rate when particulate accumulation is outside the particulate accumulation trigger zone, and at a second sampling rate when particulate accumulation is within the particulate accumulation trigger zone.

Abstract translation: 用于内燃机的微粒过滤器装置监测系统包括微粒积聚寄存器，其构造成将微粒过滤器中的一些颗粒物质储存。 颗粒物积聚寄存器包括具有功率限制模式触发的微粒累积触发区。 功率限制模式触发模块被配置为当微粒累积量达到功率限制模式触发时，限制内燃机的输出功率。 颗粒蓄积模型模块包括颗粒蓄积模型，其被配置为当颗粒聚集在颗粒蓄积触发区之外时以第一采样率计算颗粒蓄积寄存器中颗粒物积聚的变化，并且当颗粒积聚在 颗粒蓄积触发区。

公开(公告)号：US09206719B2

公开(公告)日：2015-12-08

申请号：US14022871

申请日：2013-09-10

Applicant: GM Global Technology Operations LLC

Inventor： Christopher C. Swoish ,  Douglas Christopher Sarsen ,  Christopher Whitt ,  Thomas Larose, Jr.

IPC: F01N3/00 ,  F01N3/023 ,  F01N3/10 ,  F01N3/20 ,  F02D41/02 ,  F01N9/00 ,  F01N13/00 ,  F02D41/14

CPC classification number: F01N3/023 ,  F01N3/0231 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/026 ,  F01N2900/1402 ,  F01N2900/1606 ,  F02D41/029 ,  F02D41/1461 ,  F02D41/1467 ,  F02D2200/0812 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust treatment system to treat exhaust gas includes a particulate filter and a pressure sensor. The particulate filter is configured to trap soot contained in exhaust gas. The pressure sensor is configured to output a pressure signal indicative of a pressure differential of the particulate filter. The exhaust treatment system further includes a soot mass module configured to determine a soot mass. The soot mass is indicative of an amount of soot stored in the particulate filter based on the pressure differential and a soot model stored in a memory device. The exhaust treatment system further includes a continuously regenerating trap (CRT) compensation module configured to generate a variable CRT threshold. The CRT compensation module selectively outputs a CRT compensation value that modifies the soot model based on comparison between the NOx flow rate and the soot mass-based variable CRT threshold.

Abstract translation: 用于处理废气的废气处理系统包括微粒过滤器和压力传感器。 微粒过滤器被配置成捕集废气中所含的烟灰。 压力传感器被配置为输出表示微粒过滤器的压力差的压力信号。 废气处理系统还包括配置成确定烟灰质量的烟灰质量模块。 烟灰质量基于压差和存储在存储装置中的烟尘模型来指示存储在微粒过滤器中的烟灰量。 排气处理系统还包括被配置为产生可变CRT阈值的连续再生陷阱（CRT）补偿模块。 CRT补偿模块基于NOx流量和基于烟灰质量的可变CRT阈值之间的比较选择性地输出修正烟灰模型的CRT补偿值。