PARTICULATE FILTER PERFORMANCE MONITORING
    11.
    发明申请
    PARTICULATE FILTER PERFORMANCE MONITORING 有权
    颗粒过滤器性能监测

    公开(公告)号:US20150020507A1

    公开(公告)日:2015-01-22

    申请号:US13943142

    申请日:2013-07-16

    Abstract: A method for particulate filter performance monitoring in an exhaust gas treatment system is provided. The method includes monitoring a current received from a soot sensor in the exhaust gas treatment system and comparing the current to a soot sensor current threshold. Based on determining that the current is greater than or equal to the soot sensor current threshold, an accumulated engine out soot value is compared to an accumulated engine out soot threshold. A particulate filter fault is set based on determining that the accumulated engine out soot value is less than the accumulated engine out soot threshold. A monitoring system and an exhaust gas treatment system of an engine are also provided.

    Abstract translation: 提供了一种废气处理系统中的微粒过滤器性能监测方法。 该方法包括监测从废气处理系统中的烟灰传感器接收的电流,并将电流与烟尘传感器电流阈值进行比较。 基于确定电流大于或等于烟尘传感器电流阈值,将累积的发动机熄火烟炱值与积累的发动机熄火烟炱阈值进行比较。 基于确定积存的发动机熄火烟灰值小于累积发动机熄火烟灰阈值来设定微粒过滤器故障。 还提供了发动机的监测系统和废气处理系统。

    METHOD OF ESTIMATING HYDROCARBON STORAGE IN A CATALYTIC DEVICE
    12.
    发明申请
    METHOD OF ESTIMATING HYDROCARBON STORAGE IN A CATALYTIC DEVICE 有权
    在催化装置中估计储存烃的方法

    公开(公告)号:US20150209729A1

    公开(公告)日:2015-07-30

    申请号:US14163120

    申请日:2014-01-24

    Abstract: A method of estimating hydrocarbon storage in a catalytic device of an exhaust gas treatment system includes calculating an amount of hydrocarbons absorbed in the catalytic device per unit volume of exhaust gas over a period of time, calculating an amount of hydrocarbons desorbed in the catalytic device per unit volume of exhaust gas over the period of time, and calculating an amount of hydrocarbons oxidized in the catalytic device per unit volume of exhaust gas over the period of time. The amount of hydrocarbons oxidized in the catalytic device and the amount of hydrocarbons desorbed in the catalytic device are subtracted from the amount of hydrocarbons absorbed in the catalytic device to determine the amount of hydrocarbons stored in the catalytic device.

    Abstract translation: 一种估计废气处理系统的催化装置中的烃储存的方法包括计算在一段时间内每单位体积废气中催化装置中吸收的烃的量,计算每个催化装置中解吸的烃的量 在一段时间内排气的单位体积,并计算在一段时间内每单位体积排气中的催化装置中氧化的烃的量。 在催化装置中氧化的烃的量和在催化装置中解吸的烃的量从在催化装置中吸收的烃的量减去以确定存储在催化装置中的烃的量。

    Adaptive soot mass estimation in a vehicle exhaust after-treatment device
    13.
    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
    14.
    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。

    PARTICULATE FILTER REGENERATION MANAGEMENT
    15.
    发明申请
    PARTICULATE FILTER REGENERATION MANAGEMENT 有权
    颗粒过滤器再生管理

    公开(公告)号:US20140157982A1

    公开(公告)日:2014-06-12

    申请号:US13712016

    申请日:2012-12-12

    Abstract: A method for implementing particulate filter regeneration management is provided. The method includes determining a presumptive deviation between a particulate model and actual particulate level conditions of the particulate filter. The presumptive deviation is determined from identification of an occurrence of extended parking, a passive regeneration, residual particulates, and a pressure signal. Each of the extended parking, passive regeneration, residual particulate, and pressure signal is specified by a respective particulate model deviation type. The method also includes selectively controlling current to at least one zone of a plurality of zones of an electric heater to initiate a regeneration event based on the presumptive deviation, and estimating the particulate level in the particulate filter once the regeneration event is complete.

    Abstract translation: 提供了一种实现微粒过滤器再生管理的方法。 该方法包括确定颗粒模型与颗粒过滤器的实际颗粒物水平条件之间的推定偏差。 推测偏差是通过对扩展停车,被动再生,残留颗粒和压力信号的发生的识别来确定的。 每个扩展停车,被动再生,残留颗粒和压力信号由相应的颗粒模型偏差类型指定。 该方法还包括选择性地将电流控制到电加热器的多个区域中的至少一个区域,以基于推定偏差来启动再生事件,并且一旦再生事件完成,则估计微粒过滤器中的微粒水平。

    System to monitor regeneration frequency of particulate filter
    19.
    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
    20.
    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。

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