System and method for estimating an amount of particulate matter accumulated in a particulate filter
    4.
    发明授权
    System and method for estimating an amount of particulate matter accumulated in a particulate filter 有权
    用于估计颗粒过滤器中积聚的颗粒物质的量的系统和方法

    公开(公告)号:US08484955B2

    公开(公告)日:2013-07-16

    申请号:US13020859

    申请日:2011-02-04

    摘要: An amount of particulate matter accumulated in a particulate filter of an exhaust system is estimated by preloading a memory location with a plurality of hybrid models. Each hybrid model estimates an amount of particulate matter accumulated in the particulate filter between a pair of operating points. An estimated amount of particulate matter accumulated in the particulate filter is stored in the memory location for each hybrid model. Each hybrid model is ranked based on estimation accuracy during operating conditions and the highest ranked hybrid model is selected. The estimated amount of particulate matter accumulated in the particulate filter corresponding to the highest ranked hybrid model is added to the soot estimation value stored in the memory location that corresponds to a ranked hybrid model to provide a soot estimation value of a cumulative estimated amount of particulate matter contained in the particulate filter for the ranked hybrid model.

    摘要翻译: 通过利用多个混合动力车型预先加载存储位置来估计在排气系统的微粒过滤器中累积的颗粒物质的量。 每个混合模型估计在一对工作点之间在颗粒过滤器中累积的颗粒物质的量。 在颗粒过滤器中累积的颗粒物质的估计量存储在每个混合模型的存储位置中。 每个混合模型基于运行条件下的估计精度进行排序,并选择最高排名的混合模型。 累积在与最高排名的混合模型相对应的微粒过滤器中的颗粒物质的估计量被添加到存储在对应于排名混合模型的存储器位置中的烟灰估计值,以提供累积估计量的颗粒物的烟灰估计值 包含在排序混合模型的颗粒过滤器中的物质。

    METHOD FOR CONTROLLING REGENERATION WITHIN AN AFTER-TREATMENT COMPONENT OF A COMPRESSION-IGNITION ENGINE
    6.
    发明申请
    METHOD FOR CONTROLLING REGENERATION WITHIN AN AFTER-TREATMENT COMPONENT OF A COMPRESSION-IGNITION ENGINE 有权
    在压缩点火发动机的后处理组件中控制再生的方法

    公开(公告)号:US20130125529A1

    公开(公告)日:2013-05-23

    申请号:US13298470

    申请日:2011-11-17

    IPC分类号: F01N3/18

    摘要: A method for controlling regeneration within an after-treatment component of a compression-ignition engine comprises calculating an initial estimate of accumulated particulate matter based on a pressure-based soot accumulation model and a pressure drop index indicative of a decrease in pressure across the component. An adjusted estimate of accumulated particulate matter in the component is calculated based on the initial estimate and a soot prediction error inherent in the soot model. The adjusted estimate is compared to a predetermined threshold associated with the after-treatment component, and a remedial action is initiated when the adjusted estimate of accumulated particulate matter in the after-treatment component exceeds the predetermined threshold. The pressure-based soot accumulation model may be configured to predict soot accumulation in the absence of passive regeneration, and an adjusted kinetic burn model may be used to estimate a quantity of soot disposed through passive regeneration.

    摘要翻译: 一种用于控制压缩点火式发动机的后处理部件中的再生的方法包括基于基于压力的烟灰累积模型和指示组件上的压力降低的压降指标来计算累积颗粒物质的初始估计值。 基于煤烟模型中固有的初始估计和煤烟预测误差计算组分中累积颗粒物的调整估计。 将经调整的估计值与与后处理成分相关联的预定阈值进行比较,并且当后处理组件中累积的颗粒物质的调整估计值超过预定阈值时,开始补救动作。 基于压力的烟灰累积模型可以被配置为在没有被动再生的情况下预测烟灰积聚,并且可以使用调整的动燃烧模型来估计通过被动再生设置的烟灰的量。

    System for determining sulfur storage of aftertreatment devices
    9.
    发明授权
    System for determining sulfur storage of aftertreatment devices 有权
    确定后处理装置硫储存系统

    公开(公告)号:US08893482B2

    公开(公告)日:2014-11-25

    申请号:US13423617

    申请日:2012-03-19

    IPC分类号: F01N3/00

    摘要: An exhaust gas treatment system for an internal combustion engine for determining a total amount of sulfur that is stored on at least one aftertreatment device is provided. The exhaust gas treatment system includes a control module that monitors operation of the internal combustion engine for an amount of fuel consumed and an amount of oil consumed by the internal combustion engine. The control module includes a sulfur adsorption module and a total sulfur storage module. The sulfur adsorption module determines a rate of sulfur adsorption in at least one aftertreatment device. The rate of sulfur adsorption is based on the amount of fuel consumed and the amount of oil consumed. The total sulfur storage module is in communication with the sulfur adsorption module. The total sulfur storage module determines the total amount of sulfur stored based on the rate of sulfur adsorption.

    摘要翻译: 提供了一种用于确定存储在至少一个后处理装置上的硫的总量的用于内燃机的废气处理系统。 废气处理系统包括控制模块,该控制模块监测内燃机的燃料消耗量和内燃机所消耗的油量的运转。 控制模块包括硫吸附模块和总硫储存模块。 硫吸附模块确定至少一个后处理装置中的硫吸附速率。 硫吸附速率取决于燃料的消耗量和消耗的油量。 总硫储存模块与硫吸附模块连通。 总硫储存模块基于硫吸附速率确定所储存的硫的总量。

    Stratified particulate filter regeneration system
    10.
    发明授权
    Stratified particulate filter regeneration system 有权
    分层微粒过滤器再生系统

    公开(公告)号:US08505284B2

    公开(公告)日:2013-08-13

    申请号:US13190573

    申请日:2011-07-26

    IPC分类号: F01N3/00

    摘要: An exhaust gas treatment system for an internal combustion engine is provided and includes an exhaust gas conduit, a hydrocarbon supply, a particulate filter (“PF”), at least one sensor, a first temperature sensor, a second temperature sensor, and a control module. The PF is in fluid communication with the exhaust gas conduit and has a filter structure for removal of particulates in the exhaust gas. The filter structure has an innermost region and an outermost region. The PF is selectively regenerated during operation of the internal combustion engine. The PF has a stratified temperature structure that causes the particulates trapped at the innermost region of the PF burn off before the particulates trapped in the outermost region of the PF during regeneration. The control module has a memory with an infinite stage temperature control curve stored thereon.

    摘要翻译: 提供了一种用于内燃机的废气处理系统,包括排气导管,碳氢化合物供应源,微粒过滤器(“PF”),至少一个传感器,第一温度传感器,第二温度传感器和控制器 模块。 PF与排气管道流体连通,并且具有用于去除废气中的微粒的过滤器结构。 过滤器结构具有最内侧区域和最外侧区域。 在内燃机的运行期间,选择性地再生PF。 PF具有分层的温度结构,其在捕获在PF的最内区域的微粒在再生期间被捕获在PF的最外区域之前被烧掉。 控制模块具有存储有无限级温度控制曲线的存储器。