公开(公告)号：US20140123628A1

公开(公告)日：2014-05-08

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: F01N3/025

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：US20150233277A1

公开(公告)日：2015-08-20

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: F01N9/00

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。