METHOD FOR OPERATING A DOSING DEVICE AND MOTOR VEHICLE HAVING A DOSING DEVICE
    7.
    发明申请
    METHOD FOR OPERATING A DOSING DEVICE AND MOTOR VEHICLE HAVING A DOSING DEVICE 有权
    用于操作设备的方法和具有调度设备的电机车辆

    公开(公告)号:US20140245720A1

    公开(公告)日:2014-09-04

    申请号:US14275246

    申请日:2014-05-12

    Abstract: A method for operating a dosing device for metering an additive to an exhaust-gas treatment device includes determining a dosing amount of additive required by the exhaust-gas treatment device in step a). Subsequently, in step b), an operating mode for the dosing device is determined by carrying out at least steps b.1) and b.2). In step b.1), at least one characteristic operating value of at least one component of the dosing device is provided being definitive of a degree of aging of the dosing device. In step b.2), an operating mode for the dosing device is set in dependence on the characteristic operating value from step b.1). In step c), the dosing device is operated with the set operating mode so that the dosing amount required in step a) is supplied to the exhaust-gas treatment device. A motor vehicle having a dosing device is also provided.

    Abstract translation: 用于操作用于计量添加剂到排气处理装置的计量装置的方法包括在步骤a)中确定废气处理装置所需的添加剂的给药量。 随后,在步骤b)中,通过执行至少步骤b.1)和b.2)来确定计量装置的操作模式。 在步骤b.1)中,定量给药装置的至少一个组件的至少一个特征操作值被确定为定量装置的老化程度。 在步骤b.2)中,根据步骤b.1)的特征操作值来设定配量装置的操作模式。 在步骤c)中,计量装置以设定的操作模式操作,使得步骤a)中所需的计量量被供应给废气处理装置。 还提供了具有计量装置的机动车辆。

    Emissions control diagnostic method and system
    8.
    发明授权
    Emissions control diagnostic method and system 有权
    排放控制诊断方法和系统

    公开(公告)号:US08813479B2

    公开(公告)日:2014-08-26

    申请号:US13103505

    申请日:2011-05-09

    Abstract: Various methods for and embodiments of an aftertreatment system which includes a catalyst disposed upstream of a particulate filter are provided. In one example, the method includes, conducting soot regeneration of the particulate filter under a selected operating condition, and determining whether a soot regeneration frequency of the particulate filter is greater than a threshold frequency. The method further includes initiating a sulfur regeneration of the aftertreatment system based on the soot regeneration frequency of the particulate filter being greater than the threshold frequency, determining whether the soot regeneration frequency of the particulate filter is less than the threshold frequency after the sulfur regeneration, and conducting non-regeneration operation of the aftertreatment system based on the soot regeneration frequency of the particulate filter being less than the threshold frequency after the sulfur regeneration of the aftertreatment system.

    Abstract translation: 提供了包括设置在微粒过滤器上游的催化剂的后处理系统的各种方法和实施方案。 在一个实例中,该方法包括:在选择的操作条件下进行微粒过滤器的烟灰再生,以及确定微粒过滤器的烟灰再生频率是否大于阈值频率。 该方法还包括基于颗粒过滤器的烟灰再生频率大于阈值频率来启动后处理系统的硫再生,确定微粒过滤器的烟灰再生频率是否小于硫再生后的阈值频率, 并且在后处理系统的硫再生之后,基于微粒过滤器的烟灰再生频率小于阈值频率,进行后处理系统的非再生操作。

    Particulate filter ash loading prediction method and vehicle with same
    9.
    发明授权
    Particulate filter ash loading prediction method and vehicle with same 有权
    颗粒过滤灰分负荷预测方法与车辆相同

    公开(公告)号:US08447461B2

    公开(公告)日:2013-05-21

    申请号:US12896075

    申请日:2010-10-01

    Abstract: A particulate filter (PF) ash loading prediction method includes the steps of: regenerating the PF using a first soot loading prediction model or a second soot loading prediction model; determining whether the regeneration of the PF was initiated by the first soot loading prediction model or the second soot loading prediction model; incrementing a first counter associated with the first soot loading prediction model or a second counter associated with the second soot loading prediction model, dependent on the determining step; comparing a ratio of the first counter and the second counter; and establishing whether the PF requires servicing, dependent on the ratio.

    Abstract translation: 微粒过滤器(PF)灰分负荷预测方法包括以下步骤:使用第一烟灰负荷预测模型或第二烟灰负荷预测模型再生PF; 确定PF的再生是否由第一烟灰负荷预测模型或第二烟灰负荷预测模型启动; 取决于确定步骤,增加与第一烟灰负荷预测模型相关联的第一计数器或与第二烟灰负荷预测模型相关联的第二计数器; 比较第一计数器和第二计数器的比率; 并确定PF是否需要维修,取决于比例。

Patent Agency Ranking