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    • 2. 发明授权
    • Apparatus, system, and method for estimating particulate production
    • 用于估算颗粒物生产的装置,系统和方法
    • US07478527B2
    • 2009-01-20
    • US11227857
    • 2005-09-15
    • J. Steve Wills
    • J. Steve Wills
    • F01N3/00
    • F01N9/002F01N3/0231F01N11/002F02D41/1467Y02T10/47
    • An apparatus, system, and method are disclosed for estimating particulate production from a diesel engine. Engine conditions such as fuel rate, exhaust gas recirculation, and fuel injection timing are determined. Based on empirical evidence or theoretical calculations, or both, particulate production markers, each indicating a level of particulate production, are assigned to each engine condition. The markers are combined and the combined marker is used to interpolate between a minimum and a maximum level of particulate production from the engine to estimate a particulate production rate. The production rate may be combined with an oxidation rate to determine a particulate accumulation rate, which may in turn be combined with a particulate load estimate to produce a combined particulate load estimate. The combined estimate may be used to determine whether to initiate regeneration of a diesel particulate filter.
    • 公开了一种用于从柴油发动机估计颗粒物产生的装置,系统和方法。 确定发动机条件,例如燃料速率,废气再循环和燃料喷射正时。 根据经验证据或理论计算,或两者,每个发动机条件都分配了颗粒生产标记,每个颗粒生产标记均表示颗粒物生产的水平。 标记被组合,并且组合的标记用于在发动机的最小和最大水平的颗粒物生产之间进行内插,以估计颗粒生产速率。 生产速率可以与氧化速率结合以确定颗粒蓄积速率,其可以与颗粒负荷估计结合,以产生组合的颗粒负荷估计。 组合估计可用于确定是否启动柴油机微粒过滤器的再生。
    • 5. 发明授权
    • Apparatus, system, and method for calibrating a particulate production estimate
    • 用于校准微粒生产估计的装置,系统和方法
    • US07188512B1
    • 2007-03-13
    • US11301737
    • 2005-12-13
    • J. Steve Wills
    • J. Steve Wills
    • G01M15/00
    • G01M15/106F01N9/002F02D41/1467
    • An apparatus, system, and method are disclosed for calibrating an estimate of the status of a mechanism or process, for example, particulate production from a diesel engine. A first estimator makes a first particulate production rate estimate as a function of, for example, differential pressure over a particulate filter over time, a second estimator makes a second particulate production rate estimate by interpolating between high and low production rates, and a calibrator calibrates the second estimator according to the difference between the first and second estimates. The calibration may be carried out by calculating new high and/or low production rates, and may depend on the reliability of the first estimate.
    • 公开了用于校准机构或过程的状态的估计的设备,系统和方法,例如来自柴油发动机的颗粒生产。 第一估计器将第一颗粒生产率估计作为例如微粒过滤器随时间的差压的函数,第二估计器通过在高生产率和低生产率之间进行内插来产生第二颗粒生产率估计,并且校准器校准 第二估计量根据第一和第二估计之间的差异。 校准可以通过计算新的高和/或低生产率来执行,并且可以取决于第一估计的可靠性。
    • 6. 发明授权
    • Apparatus, system, and method for determining a regeneration availability profile
    • 用于确定再生可用性分布的装置,系统和方法
    • US07677030B2
    • 2010-03-16
    • US11301808
    • 2005-12-13
    • Melissa DyeJ. Steve Wills
    • Melissa DyeJ. Steve Wills
    • F01N3/00
    • F01N9/002F01N3/023F01N2900/0422Y02T10/47
    • An apparatus, system, and method are disclosed for determining a regeneration availability profile for an exhaust gas aftertreatment system. The apparatus, in one embodiment, is configured to determine whether required regeneration conditions could be met within the system if attempted. The apparatus may include a data module for storing and retrieving a regeneration availability profile and for receiving regeneration requirements data. The apparatus may further include an input module for receiving input relative to current operating conditions of the exhaust gas aftertreatment system. The apparatus may further include a controller which uses the required regeneration conditions, the retrieved regeneration availability profile, and the input relative to current operating conditions to produce and store a new regeneration availability profile.
    • 公开了用于确定废气后处理系统的再生可用性曲线的装置,系统和方法。 在一个实施例中,该装置被配置为确定如果尝试,是否可以在系统内满足所需的再生条件。 该装置可以包括用于存储和检索再生可用性简档并用于接收再生需求数据的数据模块。 该装置还可以包括用于接收相对于废气后处理系统的当前操作条件的输入的输入模块。 该装置还可以包括控制器,其使用所需的再生条件,检索到的再生可用性曲线以及相对于当前操作条件的输入来产生和存储新的再生可用性曲线。
    • 8. 发明授权
    • Apparatus, system, and method for detecting and labeling a filter regeneration event
    • 用于检测和标记过滤器再生事件的装置,系统和方法
    • US07263825B1
    • 2007-09-04
    • US11227824
    • 2005-09-15
    • Joan WillsJ. Steve Wills
    • Joan WillsJ. Steve Wills
    • F01N3/00
    • F01N9/002Y02T10/47Y10S55/30
    • An apparatus, system, and method are disclosed for detecting and evaluating a filter regeneration event. The apparatus, in one embodiment, is configured to determine whether an oxidation rate of soot accumulated on a particulate filter has attained a level sufficient to indicate that a filter regeneration event is occurring. The apparatus may include an input module for receiving input relative to engine operating conditions and exhaust gas produced as a byproduct of engine operation, an oxidation module for communicating with the input module and for determining an oxidation rate of soot accumulated on a particulate filter from the input, and a regeneration detection module to determine whether a filter regeneration event is occurring. The apparatus may further categorize a detected filter regeneration event and to facilitate defining the actual condition of soot on a particulate filter.
    • 公开了用于检测和评估过滤器再生事件的装置,系统和方法。 在一个实施例中,该装置被配置为确定积聚在颗粒过滤器上的烟灰的氧化速率是否已经达到足以指示发生过滤器再生事件的水平。 该装置可以包括用于接收相对于发动机操作条件的输入的输入模块和作为发动机操作的副产物产生的废气,用于与输入模块通信的氧化模块,以及用于确定从颗粒过滤器中累积的烟灰的氧化速率 输入和再生检测模块,以确定是否发生滤波器再生事件。 该装置可以进一步对检测到的过滤器再生事件进行分类,并且有助于限定微粒过滤器上的烟灰的实际状况。