Systems and methods for controlling temperature and total hydrocarbon slip
    1.
    发明授权
    Systems and methods for controlling temperature and total hydrocarbon slip 有权
    控制温度和总碳氢化合物滑移的系统和方法

    公开(公告)号:US08418441B2

    公开(公告)日:2013-04-16

    申请号:US12786758

    申请日:2010-05-25

    IPC分类号: F01N3/00 F01N3/10

    摘要: Systems and methods for controlling temperature and total hydrocarbon slip in an exhaust system are provided. Control systems can comprise an oxidation catalyst, a particulate filter, a fuel injector, and a processor for controlling a fuel injection based on an oxidation catalyst model. Example system includes a virtual sensor comprising a controller for calculating and providing the total hydrocarbon slip to subsystems for after-treatment management based on modeling the oxidation catalyst. Example methods for controlling the temperature and the total hydrocarbon slip in an exhaust system include the steps of providing an oxidation catalyst model, monitoring a condition of the exhaust system, calculating a hydrocarbon fuel injection flow rate and controlling a fuel injection. The example methods further include the steps of determining an error in the oxidation catalyst model based on the monitored condition and changing the oxidation catalyst model to reduce the error.

    摘要翻译: 提供了用于控制排气系统中的温度和总碳氢化合物滑移的系统和方法。 控制系统可以包括氧化催化剂,颗粒过滤器,燃料喷射器和用于基于氧化催化剂模型控制燃料喷射的处理器。 示例系统包括虚拟传感器,该虚拟传感器包括控制器,用于基于对氧化催化剂的建模来计算并提供用于后处理管理的子系统的总碳氢化合物滑移。 用于控制排气系统中的温度和总碳氢化合物滑移的实例方法包括提供氧化催化剂模型,监测排气系统的状况,计算碳氢化合物燃料喷射流量和控制燃料喷射的步骤。 该示例方法还包括基于监测条件确定氧化催化剂模型中的误差并改变氧化催化剂模型以减少误差的步骤。

    System and method for controlling exhaust stream temperature
    2.
    发明授权
    System and method for controlling exhaust stream temperature 有权
    控制排气温度的系统和方法

    公开(公告)号:US08245501B2

    公开(公告)日:2012-08-21

    申请号:US12229869

    申请日:2008-08-27

    IPC分类号: F01N3/00 F01N3/10 G05B13/02

    摘要: Systems and methods are provided for controlling an exhaust stream temperature at a point along an exhaust system. The exhaust system can include an oxidation catalyst, a particulate filter having an outlet, and a fuel injector for injecting fuel into an exhaust stream at a location upstream from the outlet. An adaptive control can be provided to model a portion of the exhaust system. A fuel injection flow rate at which fuel is injected into the exhaust stream by the fuel injector can be calculated based on the adaptive control model. An operation of the fuel injector can be controlled based on the calculated fuel injection flow rate, to control the exhaust stream temperature at point along the exhaust system. A condition of the exhaust stream can also monitored and an error in the adaptive control model can be determined based on the monitored condition. The adaptive control model can also be changed to reduce the error.

    摘要翻译: 提供了系统和方法来控制沿着排气系统的一点的排气流温度。 排气系统可以包括氧化催化剂,具有出口的颗粒过滤器和用于将燃料喷射到出口上游位置的排气流中的燃料喷射器。 可以提供自适应控制以对排气系统的一部分进行建模。 可以基于自适应控制模型来计算燃料喷射器将燃料喷射到排气流中的燃料喷射流量。 可以基于计算出的燃料喷射流量来控制燃料喷射器的操作,以控制沿着排气系统的点处的排气流温度。 还可以监视废气流的状况,并且可以基于所监视的条件来确定自适应控制模型中的误差。 自适应控制模型也可以改变以减少误差。

    Systems And Methods For Controlling Temperature And Total Hydrocarbon Slip
    3.
    发明申请
    Systems And Methods For Controlling Temperature And Total Hydrocarbon Slip 有权
    控制温度和总碳氢化合物滑移的系统和方法

    公开(公告)号:US20100300070A1

    公开(公告)日:2010-12-02

    申请号:US12786758

    申请日:2010-05-25

    IPC分类号: F01N3/00 F01N9/00 F01N11/00

    摘要: Systems and methods for controlling temperature and total hydrocarbon slip in an exhaust system are provided. Control systems can comprise an oxidation catalyst, a particulate filter, a fuel injector, and a processor for controlling a fuel injection based on an oxidation catalyst model. Example system includes a virtual sensor comprising a controller for calculating and providing the total hydrocarbon slip to subsystems for after-treatment management based on modeling the oxidation catalyst. Example methods for controlling the temperature and the total hydrocarbon slip in an exhaust system include the steps of providing an oxidation catalyst model, monitoring a condition of the exhaust system, calculating a hydrocarbon fuel injection flow rate and controlling a fuel injection. The example methods further include the steps of determining an error in the oxidation catalyst model based on the monitored condition and changing the oxidation catalyst model to reduce the error.

    摘要翻译: 提供了用于控制排气系统中的温度和总碳氢化合物滑移的系统和方法。 控制系统可以包括氧化催化剂,颗粒过滤器,燃料喷射器和用于基于氧化催化剂模型控制燃料喷射的处理器。 示例系统包括虚拟传感器,该虚拟传感器包括控制器,用于基于对氧化催化剂的建模来计算并提供用于后处理管理的子系统的总碳氢化合物滑移。 用于控制排气系统中的温度和总碳氢化合物滑移的实例方法包括提供氧化催化剂模型,监测排气系统的状况,计算碳氢化合物燃料喷射流量和控制燃料喷射的步骤。 该示例方法还包括基于监测条件确定氧化催化剂模型中的误差并改变氧化催化剂模型以减少误差的步骤。

    System and method for controlling exhaust stream temperature
    4.
    发明申请
    System and method for controlling exhaust stream temperature 有权
    控制排气温度的系统和方法

    公开(公告)号:US20100050607A1

    公开(公告)日:2010-03-04

    申请号:US12229869

    申请日:2008-08-27

    IPC分类号: F01N3/025

    摘要: Systems and methods are provided for controlling an exhaust stream temperature at a point along an exhaust system. The exhaust system can include an oxidation catalyst, a particulate filter having an outlet, and a fuel injector for injecting fuel into an exhaust stream at a location upstream from the outlet. An adaptive control can be provided to model a portion of the exhaust system. A fuel injection flow rate at which fuel is injected into the exhaust stream by the fuel injector can be calculated based on the adaptive control model. An operation of the fuel injector can be controlled based on the calculated fuel injection flow rate, to control the exhaust stream temperature at point along the exhaust system. A condition of the exhaust stream can also monitored and an error in the adaptive control model can be determined based on the monitored condition. The adaptive control model can also be changed to reduce the error.

    摘要翻译: 提供了系统和方法来控制沿着排气系统的一点的排气流温度。 排气系统可以包括氧化催化剂,具有出口的颗粒过滤器和用于在出口上游的位置将燃料喷射到排气流中的燃料喷射器。 可以提供自适应控制以对排气系统的一部分进行建模。 可以基于自适应控制模型来计算燃料喷射器将燃料喷射到排气流中的燃料喷射流量。 可以基于计算出的燃料喷射流量来控制燃料喷射器的操作,以控制沿着排气系统的点处的排气流温度。 还可以监视废气流的状况,并且可以基于所监视的条件来确定自适应控制模型中的误差。 自适应控制模型也可以改变以减少误差。

    Methods Of Operating An Extrusion Apparatus
    5.
    发明申请
    Methods Of Operating An Extrusion Apparatus 有权
    操作挤出设备的方法

    公开(公告)号:US20110121477A1

    公开(公告)日:2011-05-26

    申请号:US12624955

    申请日:2009-11-24

    IPC分类号: B29C47/92

    摘要: Methods of operating an extrusion apparatus are provided for extruding ceramic or ceramic-forming material. The extrusion apparatus includes an extrusion die mounted with respect to a barrel. At least one screw is rotatably mounted within the barrel, and a feeder is configured to introduce a batch material to the screw. Example methods can adjust at least one of a rotational rate of the screw to an initial rotational rate or a feed rate of the feeder to an initial feed rate when based on a changed operating condition and/or when the batch material reaches the extrusion die. At least one of the rotational rate of the screw or the feed rate of the feeder can then be increased during a transient state until a steady state is reached.

    摘要翻译: 为挤压陶瓷或陶瓷形成材料提供操作挤压设备的方法。 挤压设备包括相对于筒安装的挤出模头。 至少一个螺杆可旋转地安装在筒内,并且进料器构造成将批料材料引入螺杆。 当基于改变的操作条件和/或当批料材料到达挤出模头时,示例性方法可以将螺杆的旋转速率中的至少一个调节到初始转速或进料器的进料速率至初始进料速率。 然后可以在过渡状态期间增加螺杆的旋转速率或进料器的进给速度中的至少一个,直到达到稳定状态。

    Dual loop control of ceramic precursor extrusion batch

    公开(公告)号:US09908259B2

    公开(公告)日:2018-03-06

    申请号:US13126342

    申请日:2009-10-30

    IPC分类号: G05B19/02 B28B3/20 B28B3/26

    CPC分类号: B28B3/201 B28B3/269

    摘要: A control strategy for producing high quality extrudates, including the steps of monitoring the temperature of a ceramic precursor batch by measuring the temperature of the batch material either directly or indirectly by measuring the temperature of a component of the extruder proximate to the die and transmitting the temperature data to an extrusion control system which comprises a master controller (106), at least one slave controller (110) and an optional supervisory controller. The supervisory controller determines batch temperature setpoint (102) in order to achieve the desired temperatures for extruding a certain type of batch material based on real time temperature inputs and stored parameters such as batch composition, process throughput, extruder cooling capacity, and the like. The master controller (106) receives batch temperature setpoint from the supervisory controller, and monitors batch temperature and in turn regulates at least one slave controller (110) which controls the flow of coolant (112) to portions of an extruder (114) in contact with the batch material.

    DUAL LOOP CONTROL OF CERAMIC PRECURSOR EXTRUSION BATCH
    7.
    发明申请
    DUAL LOOP CONTROL OF CERAMIC PRECURSOR EXTRUSION BATCH 有权
    陶瓷前驱物料双重控制

    公开(公告)号:US20120226375A1

    公开(公告)日:2012-09-06

    申请号:US13126342

    申请日:2009-10-30

    IPC分类号: G05B15/02

    CPC分类号: B28B3/201 B28B3/269

    摘要: A control strategy for producing high quality extrudates, including the steps of monitoring the temperature of a ceramic precursor batch by measuring the temperature of the batch material either directly or indirectly by measuring the temperature of a component of the extruder proximate to the die and transmitting the temperature data to an extrusion control system which comprises a master controller (106), at least one slave controller (110) and an optional supervisory controller. The supervisory controller determines batch temperature setpoint (102) in order to achieve the desired temperatures for extruding a certain type of batch material based on real time temperature inputs and stored parameters such as batch composition, process throughput, extruder cooling capacity, and the like. The master controller (106) receives batch temperature setpoint from the supervisory controller, and monitors batch temperature and in turn regulates at least one slave controller (110) which controls the flow of coolant (112) to portions of an extruder (114) in contact with the batch material.

    摘要翻译: 用于生产高质量挤出物的控制策略,包括以下步骤:通过直接或间接测量配料材料的温度来监测陶瓷前体批料的温度,方法是通过测量靠近模头的挤出机部件的温度,并传送 温度数据输出到挤出控制系统,其包括主控制器(106),至少一个从控制器(110)和可选的监控控制器。 监控控制器确定批量温度设定点(102),以实现基于实时温度输入和存储参数(例如批量组成,处理量,挤出机冷却能力等)挤出某种类型的批料的期望温度。 主控制器(106)从监控控制器接收批次温度设定值,并且监视批次温度,并且进而调节至少一个从属控制器(110),其控制冷却剂(112)的流动到与之接触的挤出机(114)的部分 与批量材料。