利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.018 秒)

    APPARATUS, SYSTEM, AND METHOD FOR DIESEL EXHAUST FLUID HEATING CONTROL
    1.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR DIESEL EXHAUST FLUID HEATING CONTROL 有权
    柴油机排气加热控制装置，系统及方法

    公开(公告)号：US20110047966A1

    公开(公告)日：2011-03-03

    申请号：US12870552

    申请日：2010-08-27

    申请人： Yuetao Zhang ,  Mickey McDaniel ,  Baohua Qi ,  David Everard

    发明人： Yuetao Zhang ,  Mickey McDaniel ,  Baohua Qi ,  David Everard

    IPC分类号： F02B27/04 ,  F01N9/00

    CPC分类号： F01N3/208 ,  F01N3/02 ,  F01N13/009 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/14 ,  F01N2900/1811 ,  Y02T10/24

    摘要： According to one embodiment, an apparatus for controlling the heating of diesel exhaust fluid (DEF) in a DEF delivery system includes a temperature comparison module that compares a difference between a sensed ambient air temperature and a sensed DEF tank temperature with a predetermined temperature difference threshold. Additionally, the apparatus includes a DEF heating status module that is configured to generate a DEF heating command according to (i) the sensed ambient air temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is less than the predetermined temperature threshold; and (ii) the sensed DEF tank temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is more than the predetermined temperature threshold. The apparatus also includes a DEF heating control module that is configured to control the heating of the DEF according to the DEF heating command.

    摘要翻译： 根据一个实施例，一种用于控制在DEF传送系统中的柴油机废气流体（DEF）的加热的装置包括：温度比较模块，用于将检测到的环境空气温度和感测到的DEF罐温度之间的差与预定的温度差阈值进行比较 。 另外，该装置包括DEF加热状态模块，其被配置为根据（i）感测到的环境空气温度来生成DEF加热命令，如果感测到的环境空气温度和检测到的DEF罐温度之间的差小于预定温度阈值 ; 和（ii）如果感测到的环境空气温度和检测到的DEF罐温度之间的差异大于预定温度阈值，则检测到的DEF罐温度。 该装置还包括DEF加热控制模块，其被配置为根据DEF加热命令控制DEF的加热。

    Apparatus, system, and method for diesel exhaust fluid heating control
    2.
    发明授权
    Apparatus, system, and method for diesel exhaust fluid heating control 有权
    柴油机废气加热控制装置，系统及方法

    公开(公告)号：US08387371B2

    公开(公告)日：2013-03-05

    申请号：US12870552

    申请日：2010-08-27

    申请人： Yuetao Zhang ,  Mickey McDaniel ,  Baohua Qi ,  David Everard

    发明人： Yuetao Zhang ,  Mickey McDaniel ,  Baohua Qi ,  David Everard

    IPC分类号： F01N3/20

    CPC分类号： F01N3/208 ,  F01N3/02 ,  F01N13/009 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/14 ,  F01N2900/1811 ,  Y02T10/24

    摘要： According to one embodiment, an apparatus for controlling the heating of diesel exhaust fluid (DEF) in a DEF delivery system includes a temperature comparison module that compares a difference between a sensed ambient air temperature and a sensed DEF tank temperature with a predetermined temperature difference threshold. Additionally, the apparatus includes a DEF heating status module that is configured to generate a DEF heating command according to (i) the sensed ambient air temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is less than the predetermined temperature threshold; and (ii) the sensed DEF tank temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is more than the predetermined temperature threshold. The apparatus also includes a DEF heating control module that is configured to control the heating of the DEF according to the DEF heating command.

    摘要翻译： 根据一个实施例，一种用于控制在DEF传送系统中的柴油机废气流体（DEF）的加热的装置包括：温度比较模块，用于将检测到的环境空气温度和感测到的DEF罐温度之间的差与预定的温度差阈值进行比较 。 另外，该装置包括DEF加热状态模块，其被配置为根据（i）感测到的环境空气温度来生成DEF加热命令，如果感测到的环境空气温度和检测到的DEF罐温度之间的差小于预定温度阈值 ; 和（ii）如果感测到的环境空气温度和检测到的DEF罐温度之间的差异大于预定温度阈值，则检测到的DEF罐温度。 该装置还包括DEF加热控制模块，其被配置为根据DEF加热命令控制DEF的加热。

    Methods of increasing accuracy of soot load estimates
    5.
    发明授权
    Methods of increasing accuracy of soot load estimates 有权
    提高烟灰负荷估计精度的方法

    公开(公告)号：US08316635B2

    公开(公告)日：2012-11-27

    申请号：US12138493

    申请日：2008-06-13

    申请人： Yuetao Zhang ,  Daniel D. Wilhelm

    发明人： Yuetao Zhang ,  Daniel D. Wilhelm

    IPC分类号： F01N3/00

    CPC分类号： F01N9/002 ,  F01N11/00 ,  F01N2550/04 ,  Y02T10/47

    摘要： A method for improving the effectiveness of filters by increasing accuracy of an estimate of particulate matter loading remaining in the filter after cleaning. In one embodiment, the disclosed method includes removing soot from the DPF by cleaning, and measuring parameters for a set of predetermined criteria. The amount of soot present in the DPF is then estimated based on delta pressure. The resulting estimated soot load value accounts for the noise factors such as ash loading after extended operation. The value is then used to adjust for future measurements of soot loading in the DPF after subsequent regeneration treatments and/or used to diagnose the effectiveness of the cleaning. The method can also be applied to diagnostics of the DPF. When discrepancies between DPSLE and model-based soot load estimate are observed in healthy regenerations, failure modes such as plugged filter, extreme ash loading or substrate melting can be detected.

    摘要翻译： 一种通过提高清洁后残留在过滤器中的颗粒物质负载的估计精度来提高过滤器有效性的方法。 在一个实施例中，所公开的方法包括通过清洁从DPF去除烟灰，以及测量一组预定标准的参数。 然后，基于δ压力来估计存在于DPF中的烟灰量。 所得到的估计的烟灰负荷值解释了延长操作后的灰分负荷等噪声因素。 然后，该值用于随后的再生处理和/或用于诊断清洁的有效性，以便将来测量DPF中的烟灰负荷。 该方法也可以应用于DPF的诊断。 在健康再生中观察到DPSLE和基于模型的烟灰负荷估计之间的差异，可以检测到堵塞过滤器，极端灰分负载或底物熔化等故障模式。

    Control of filter regeneration
    7.
    发明授权
    Control of filter regeneration 有权
    过滤器再生控制

    公开(公告)号：US08371112B2

    公开(公告)日：2013-02-12

    申请号：US12074697

    申请日：2008-03-05

    申请人： Yuetao Zhang ,  Daniel D. Wilhelm ,  Thomas A. Grana

    发明人： Yuetao Zhang ,  Daniel D. Wilhelm ,  Thomas A. Grana

    IPC分类号： F01N3/00

    CPC分类号： F01N3/021 ,  F01N2260/02 ,  F01N2430/00 ,  F01N2560/025 ,  F01N2560/06 ,  F02D41/029 ,  F02D41/1454 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02D2200/0812 ,  Y02T10/20

    摘要： In a system, an engine includes an exhaust system with a particle filter operable to collect particulate matter in exhaust produced by the engine, a sensor arrangement, a controller, and one or more engine control devices. The sensor arrangement provides a first sensor signal representative of oxygen in the exhaust and a second sensor signal representative of a temperature of the particle filter. The controller regulates operation of the particle filter in response to the sensor arrangement. The controller is structured to generate one or more output signals corresponding to a minimum exhaust flow rate as a function of the first and second sensor signals. The control devices are responsive to the one or more output signals to provide the minimum exhaust flow rate to the filter.

    摘要翻译： 在系统中，发动机包括排气系统，其具有可用于收集由发动机产生的废气中的颗粒物质的颗粒过滤器，传感器装置，控制器和一个或多个发动机控制装置。 传感器装置提供代表排气中的氧气的第一传感器信号和表示颗粒过滤器的温度的第二传感器信号。 控制器响应于传感器布置来调节颗粒过滤器的操作。 控制器被构造为产生与作为第一和第二传感器信号的函数的最小排气流量对应的一个或多个输出信号。 控制装置响应于一个或多个输出信号以向过滤器提供最小排气流量。

    System, method and apparatus for fuel injector diagnostics
    8.
    发明授权
    System, method and apparatus for fuel injector diagnostics 有权
    燃油喷射器诊断系统，方法和装置

    公开(公告)号：US08146562B2

    公开(公告)日：2012-04-03

    申请号：US12590788

    申请日：2009-11-13

    申请人： Aleksey Yezerets ,  Pradeep Prasad ,  Yuetao Zhang ,  Daniel D. Wilhelm ,  Neal W. Currier

    发明人： Aleksey Yezerets ,  Pradeep Prasad ,  Yuetao Zhang ,  Daniel D. Wilhelm ,  Neal W. Currier

    IPC分类号： F02B77/08 ,  F01N11/00

    CPC分类号： F02D41/221 ,  F01N3/0253 ,  F01N3/103 ,  F01N3/106 ,  F01N3/36 ,  F01N11/007 ,  F01N2550/05 ,  F01N2560/025 ,  F01N2560/06 ,  F02D41/1446 ,  F02D41/1454 ,  Y02T10/20 ,  Y02T10/40 ,  Y02T10/47

    摘要： A method includes providing a system having a fluid flow, a fuel injector and an oxygen sensor disposed in the fluid flow, where the oxygen sensor is downstream of the fuel injector. The method includes determining a first air fuel ratio, changing an injection rate of the fuel injector and determining a second air fuel ratio, and determining a fault value for the fuel injector from the first air fuel ratio and the second air fuel ratio. The method further includes determining the fault value for the fuel injector by determining a difference between the first air fuel ratio and the second air fuel ratio, and by determining that the fault value is positive in response to the difference being lower than a passing threshold value. The method includes changing injection rates of the fuel injector for specified periods of time short enough to significant disruption of system temperatures.

    摘要翻译： 一种方法包括提供具有流体流的系统，燃料喷射器和设置在流体流中的氧传感器，其中氧传感器位于燃料喷射器的下游。 该方法包括确定第一空气燃料比，改变燃料喷射器的喷射速率和确定第二空气燃料比，以及根据第一空气燃料比和第二空气燃料比确定燃料喷射器的故障值。 该方法还包括通过确定第一空气燃料比和第二空气燃料比之间的差异来确定燃料喷射器的故障值，并且通过根据差值低于通过阈值确定故障值为正 。 该方法包括将燃料喷射器的喷射速率改变到特定时间段足够短以显着地破坏系统温度。

    METHODS OF INCREASING ACCURACY OF SOOT LOAD ESTIMATES
    9.
    发明申请
    METHODS OF INCREASING ACCURACY OF SOOT LOAD ESTIMATES 有权
    提高SOAD负荷估计精度的方法

    公开(公告)号：US20090308052A1

    公开(公告)日：2009-12-17

    申请号：US12138493

    申请日：2008-06-13

    申请人： Yuetao Zhang ,  Daniel D. Wilhelm

    发明人： Yuetao Zhang ,  Daniel D. Wilhelm

    IPC分类号： F01N11/00 ,  G01M15/00

    CPC分类号： F01N9/002 ,  F01N11/00 ,  F01N2550/04 ,  Y02T10/47

    摘要： A method for improving the effectiveness of filters by increasing accuracy of an estimate of particulate matter loading remaining in the filter after cleaning. In one embodiment, the disclosed method includes removing soot from the DPF by cleaning, and measuring parameters for a set of predetermined criteria. The amount of soot present in the DPF is then estimated based on delta pressure. The resulting estimated soot load value accounts for the noise factors such as ash loading after extended operation. The value is then used to adjust for future measurements of soot loading in the DPF after subsequent regeneration treatments and/or used to diagnose the effectiveness of the cleaning. The method can also be applied to diagnostics of the DPF. When discrepancies between DPSLE and model-based soot load estimate are observed in healthy regenerations, failure modes such as plugged filter, extreme ash loading or substrate melting can be detected.

    摘要翻译： 一种通过提高清洁后残留在过滤器中的颗粒物质负载的估计精度来提高过滤器有效性的方法。 在一个实施例中，所公开的方法包括通过清洁从DPF去除烟灰，以及测量一组预定标准的参数。 然后，基于δ压力来估计存在于DPF中的烟灰量。 所得到的估计的烟灰负荷值解释了延长操作后的灰分负荷等噪声因素。 然后，该值用于随后的再生处理和/或用于诊断清洁的有效性，以便将来测量DPF中的烟灰负荷。 该方法也可以应用于DPF的诊断。 在健康再生中观察到DPSLE和基于模型的烟灰负荷估计之间的差异，可以检测到堵塞过滤器，极端灰分负载或底物熔化等故障模式。

    Control of filter regeneration
    10.
    发明申请
    Control of filter regeneration 审中-公开
    过滤器再生控制

    公开(公告)号：US20080016856A1

    公开(公告)日：2008-01-24

    申请号：US11490935

    申请日：2006-07-21

    申请人： Yuetao Zhang ,  Daniel Wilhelm ,  Thomas Grana

    发明人： Yuetao Zhang ,  Daniel Wilhelm ,  Thomas Grana

    IPC分类号： F01N3/00

    CPC分类号： F01N3/021 ,  F01N2260/02 ,  F01N2430/00 ,  F01N2560/025 ,  F01N2560/06 ,  F02D41/029 ,  F02D41/1454 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02D2200/0812 ,  Y02T10/20

    摘要： A system comprises an engine including an exhaust system with a particle filter operable to collect particulate matter in exhaust produced by the engine, a sensor arrangement, a controller, and one or more engine control devices. The sensor arrangement provides a first sensor signal representative of oxygen in the exhaust and a second sensor signal representative of a temperature of the particle filter. The controller regulates operation of the particle filter in response to the sensor arrangement. The controller is structured to generate one or more output signals corresponding to a minimum exhaust flow rate as a function of the first and second sensor signals. The control devices are responsive to the one or more output signals to provide the minimum exhaust flow rate to the filter.

    摘要翻译： 一种系统包括具有排气系统的发动机，该排气系统具有可用于收集由发动机产生的废气中的颗粒物质的颗粒过滤器，传感器装置，控制器和一个或多个发动机控制装置。 传感器装置提供代表排气中的氧气的第一传感器信号和表示颗粒过滤器的温度的第二传感器信号。 控制器响应于传感器布置来调节颗粒过滤器的操作。 控制器被构造为产生与作为第一和第二传感器信号的函数的最小排气流量对应的一个或多个输出信号。 控制装置响应于一个或多个输出信号以向过滤器提供最小排气流量。