System to monitor regeneration frequency of particulate filter
    1.
    发明授权
    System to monitor regeneration frequency of particulate filter 有权
    系统监测颗粒过滤器的再生频率

    公开(公告)号:US09169766B2

    公开(公告)日:2015-10-27

    申请号:US14217765

    申请日:2014-03-18

    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。

    SYSTEM TO MONITOR REGENERATION FREQUENCY OF PARTICULATE FILTER
    2.
    发明申请
    SYSTEM TO MONITOR REGENERATION FREQUENCY OF PARTICULATE FILTER 有权
    监测颗粒过滤器再生频率的系统

    公开(公告)号:US20150267590A1

    公开(公告)日:2015-09-24

    申请号:US14217765

    申请日:2014-03-18

    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。

    Method of estimating a variation of a quantity of soot accumulated in a diesel particulate filter
    4.
    发明授权
    Method of estimating a variation of a quantity of soot accumulated in a diesel particulate filter 有权
    估计在柴油微粒过滤器中累积的烟尘量变化的方法

    公开(公告)号:US09097150B2

    公开(公告)日:2015-08-04

    申请号:US13872871

    申请日:2013-04-29

    Abstract: A method of estimating a variation of a quantity of soot accumulated in a diesel particulate filter coupled to an internal combustion engine is provided. The method includes a passive-regeneration check for checking whether a passive regeneration of the diesel particulate filter is occurring and, if this check yields that a passive regeneration is actually occurring, the method includes determining an initial quantity of soot that was accumulated in the diesel particulate filter when the passive regeneration began and determining a rough variation of the quantity of soot accumulated in the diesel particulate filter. An engine speed and an engine load are determined and, using the engine speed, the engine load, and the initial quantity of soot, a correction is determined. The variation of the quantity of soot accumulated in the diesel particulate filter is calculated as a function of the rough variation and the correction.

    Abstract translation: 提供了一种估计在与内燃机相连的柴油机微粒过滤器中累积的烟灰量变化的方法。 该方法包括用于检查柴油微粒过滤器的被动再生是否发生的被动 - 再生检查,并且如果该检查产生实际发生的被动再生,则该方法包括确定在柴油中累积的烟尘的初始量 当被动再生开始时确定微粒过滤器,并确定柴油颗粒过滤器中累积的烟灰量的粗略变化。 确定发动机速度和发动机负荷,并且使用发动机转速,发动机负荷和烟尘的初始量来确定校正。 柴油微粒过滤器中积累的烟灰量的变化是根据粗糙变化和校正而计算的。

    Adaptive soot mass estimation in a vehicle exhaust after-treatment device
    5.
    发明授权
    Adaptive soot mass estimation in a vehicle exhaust after-treatment device 有权
    车辆废气后处理装置中的自适应煤烟质量估计

    公开(公告)号:US08935953B2

    公开(公告)日:2015-01-20

    申请号:US13894758

    申请日:2013-05-15

    Abstract: A method of estimating a total amount of soot in a diesel particulate filter includes monitoring a pressure differential across the diesel particulate filter; monitoring an engine speed and an engine load from an engine in fluid communication with the diesel particulate filter; determining a first soot mass estimate from the monitored pressure differential, the first soot mass estimate having an associated confidence indicator based on the monitored engine speed and engine load; determining a second soot mass estimate from the monitored engine speed and engine load; and outputting the first soot mass estimate if the confidence indicator is above a predetermined threshold, and outputting the second soot mass estimate if the confidence indicator is below the predetermined threshold.

    Abstract translation: 估计柴油微粒过滤器中烟尘总量的方法包括监测柴油机微粒过滤器两端的压力差; 从与柴油机微粒过滤器流体连通的发动机监测发动机转速和发动机负荷; 根据所监测的压差确定第一烟灰质量估计,所述第一烟灰质量估计具有基于所监测的发动机速度和发动机负荷的相关联的置信指示器; 从所监测的发动机转速和发动机负荷确定第二烟灰质量估计; 以及如果所述置信指标高于预定阈值则输出所述第一烟灰质量估计,以及如果所述置信指标低于所述预定阈值则输出所述第二烟灰质量估计。

    ADAPTIVE SOOT MASS ESTIMATION IN A VEHICLE EXHAUST AFTER-TREATMENT DEVICE
    6.
    发明申请
    ADAPTIVE SOOT MASS ESTIMATION IN A VEHICLE EXHAUST AFTER-TREATMENT DEVICE 有权
    车辆后处理装置中的自适应质量估计

    公开(公告)号:US20140338434A1

    公开(公告)日:2014-11-20

    申请号:US13894758

    申请日:2013-05-15

    Abstract: A method of estimating a total amount of soot in a diesel particulate filter includes monitoring a pressure differential across the diesel particulate filter; monitoring an engine speed and an engine load from an engine in fluid communication with the diesel particulate filter; determining a first soot mass estimate from the monitored pressure differential, the first soot mass estimate having an associated confidence indicator based on the monitored engine speed and engine load; determining a second soot mass estimate from the monitored engine speed and engine load; and outputting the first soot mass estimate if the confidence indicator is above a predetermined threshold, and outputting the second soot mass estimate if the confidence indicator is below the predetermined threshold.

    Abstract translation: 估计柴油微粒过滤器中烟尘总量的方法包括监测柴油机微粒过滤器两端的压力差; 从与柴油机微粒过滤器流体连通的发动机监测发动机转速和发动机负荷; 根据所监测的压差确定第一烟灰质量估计,所述第一烟灰质量估计具有基于所监测的发动机速度和发动机负荷的相关联的置信指示器; 从所监测的发动机转速和发动机负荷确定第二烟灰质量估计; 以及如果所述置信指标高于预定阈值则输出所述第一烟灰质量估计,以及如果所述置信指标低于所述预定阈值则输出所述第二烟灰质量估计。

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