PARTICULATE FILTER REGENERATION METHOD
    55.
    发明申请
    PARTICULATE FILTER REGENERATION METHOD 有权
    颗粒过滤器再生方法

    公开(公告)号:US20120285141A1

    公开(公告)日:2012-11-15

    申请号:US13105287

    申请日:2011-05-11

    IPC分类号: F01N3/023

    摘要: A regeneration system for a filter that filters exhaust gas of an engine includes a soot loading determination module that determines soot accumulation in the filter. A regeneration control module receives the determined soot accumulation from the soot loading determination module, compares the soot accumulation to a first soot accumulation threshold, and selectively increases oxidation levels in the exhaust gas in response to the comparison between the soot accumulation and the first soot accumulation threshold to initiate regeneration in the filter.

    摘要翻译: 用于过滤发动机废气的过滤器的再生系统包括确定过滤器中的烟灰积聚的烟灰负荷确定模块。 再生控制模块从烟灰负荷确定模块接收确定的烟灰积累,将烟灰积聚与第一烟灰累积阈值进行比较,并且响应于烟灰积累和第一烟灰积累之间的比较选择性地增加废气中的氧化水平 阈值以启动过滤器中的再生。

    METHOD FOR MONITORING EXHAUST GAS AFTERTREATMENT DEVICES
    57.
    发明申请
    METHOD FOR MONITORING EXHAUST GAS AFTERTREATMENT DEVICES 有权
    监测排气装置的方法

    公开(公告)号:US20120180558A1

    公开(公告)日:2012-07-19

    申请号:US13008937

    申请日:2011-01-19

    IPC分类号: G01M15/10

    CPC分类号: G01M15/102

    摘要: A method for monitoring performance of a passive selective catalytic reduction system includes operating the internal combustion engine in a preconditioning mode. Subsequent to the preconditioning, an air/fuel excursion is introduced into the exhaust gas feedstream and a signal output from a sensor monitoring the exhaust gas feedstream in the selective catalytic reduction system during the air/fuel excursion is monitored. An operating effectiveness is determined for the selective catalytic reduction system correlated to the signal output from the sensor monitoring the exhaust gas feedstream.

    摘要翻译: 一种用于监测被动选择性催化还原系统的性能的方法包括以预处理模式操作内燃机。 在预处理之后,空气/燃料偏移被引入废气进料流中,并且监测在空气/燃料偏移期间在监测选择性催化还原系统中的废气进料流的传感器输出的信号。 确定与选择性催化还原系统相关的操作有效性,该系统与从监测废气进料流的传感器输出的信号相关。

    Method and system for monitoring an active hydrocarbon adsorber
    58.
    发明授权
    Method and system for monitoring an active hydrocarbon adsorber 有权
    监测活性烃吸附器的方法和系统

    公开(公告)号:US08041501B2

    公开(公告)日:2011-10-18

    申请号:US12397798

    申请日:2009-03-04

    申请人: David B. Brown Wei Li

    发明人: David B. Brown Wei Li

    IPC分类号: F02D41/02 F02D41/00

    摘要: A method and system for monitoring an exhaust gas adsorber includes a comparison module comparing the first exhaust gas constituent signal corresponding to an amount of exhaust gas constituent in an exhaust conduit and a second exhaust gas constituent signal corresponding to an amount of exhaust gas constituent in the exhaust gas adsorber. The system includes a fault module generating a fault in response to comparing in the comparison module.

    摘要翻译: 用于监测废气吸附器的方法和系统包括比较模块,其将与排气管道中的排气成分量相对应的第一废气成分信号与对应于排气管道中的废气成分量的第二废气成分信号进行比较 废气吸附器。 该系统包括响应于比较模块中的比较而产生故障的故障模块。