公开(公告)号：US09347401B2

公开(公告)日：2016-05-24

申请号：US14044368

申请日：2013-10-02

申请人： Cummins Inc.

发明人： Yongjie Zhu ,  Vivek Anand Sujan ,  Govindarajan Kothandaraman

IPC分类号： F02D41/14 ,  F02M25/07 ,  F02D41/00 ,  F02D11/10

CPC分类号： F02M26/00 ,  F02D11/105 ,  F02D41/0007 ,  F02D41/0052 ,  F02D41/1402 ,  F02D41/1456 ,  F02D41/1461 ,  F02D2041/1409 ,  F02D2041/1418 ,  F02D2041/1422 ,  Y02T10/144 ,  Y02T10/47

摘要： Methods are disclosed for reducing the variability of particulate emissions in an exhaust stream from an internal combustion engine using a lambda error and/or a NOx error to control an exhaust gas recirculation fraction and/or a mass charge flow control. The methods include operating a controller to adjust the engine gas recirculation fraction and/or the mass charge flow control.

摘要翻译： 公开了用于减少来自内燃机的排气流中使用λ误差和/或NOx误差来控制废气再循环分数和/或质量流量控制的颗粒物排放变化的方法。 这些方法包括操作控制器来调节发动机气体再循环分数和/或质量流量控制。

公开(公告)号：US20150275803A1

公开(公告)日：2015-10-01

申请号：US14230709

申请日：2014-03-31

申请人： Cummins Inc.

发明人： Yongjie Zhu ,  Vivek A. Sujan ,  Timothy R. Frazier

IPC分类号： F02D41/14 ,  F02D41/00 ,  G05B15/02 ,  F02D41/02

CPC分类号： F02D41/1465 ,  F01N3/021 ,  F01N3/0231 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/00 ,  F01N9/002 ,  F01N13/009 ,  F01N2430/06 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1621 ,  F02D41/0055 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1454 ,  F02D41/1461 ,  F02D2041/0017 ,  F02D2041/1422 ,  G05B15/02 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/47

摘要： A method and related apparatuses and systems for operating an engine that provides a high level of NOX to regenerate particulate matter deposited on a particulate filter. The method includes producing NOX in response to a NOX excess capacity value of a NOX reduction device. The method optionally includes determining that particulate matter exceeds an enhanced passive regeneration threshold amount before providing a high level of NOX. The method optionally includes producing a higher particulate emissions output value to warm the engine exhaust to bring an aftertreatment catalyst to an optimal operating temperature. The method can be implemented with a closed loop feedback controller, which may be configured to reduce particulate matter variation.

摘要翻译： 一种用于操作发动机的方法和相关装置和系统，所述发动机提供高水平的NO x以再生沉积在微粒过滤器上的颗粒物质。 该方法包括响应于NO x还原装置的NO x过剩容量值而产生NOX。 该方法可选地包括在提供高水平的NOX之前确定颗粒物质超过增强的被动再生阈值量。 该方法可选地包括产生更高的颗粒物排放输出值以加热发动机排气以使后处理催化剂达到最佳操作温度。 该方法可以用闭环反馈控制器实现，闭环反馈控制器可被配置为减少颗粒物质变化。

公开(公告)号：US09206756B2

公开(公告)日：2015-12-08

申请号：US14230709

申请日：2014-03-31

申请人： Cummins Inc.

发明人： Yongjie Zhu ,  Vivek A. Sujan ,  Timothy R. Frazier

IPC分类号： F01N3/20 ,  F02D41/14 ,  F02D41/02 ,  F02D41/00 ,  G05B15/02 ,  F01N3/023 ,  F01N13/00 ,  F01N9/00

CPC分类号： F02D41/1465 ,  F01N3/021 ,  F01N3/0231 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/00 ,  F01N9/002 ,  F01N13/009 ,  F01N2430/06 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1621 ,  F02D41/0055 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1454 ,  F02D41/1461 ,  F02D2041/0017 ,  F02D2041/1422 ,  G05B15/02 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/47

摘要： A method and related apparatuses and systems for operating an engine that provides a high level of NOX to regenerate particulate matter deposited on a particulate filter. The method includes producing NOX in response to a NOX excess capacity value of a NOX reduction device. The method optionally includes determining that particulate matter exceeds an enhanced passive regeneration threshold amount before providing a high level of NOX. The method optionally includes producing a higher particulate emissions output value to warm the engine exhaust to bring an aftertreatment catalyst to an optimal operating temperature. The method can be implemented with a closed loop feedback controller, which may be configured to reduce particulate matter variation.

摘要翻译： 一种用于操作发动机的方法和相关装置和系统，所述发动机提供高水平的NO x以再生沉积在微粒过滤器上的颗粒物质。 该方法包括响应于NO x还原装置的NO x过剩容量值而产生NOX。 该方法可选地包括在提供高水平的NOX之前确定颗粒物质超过增强的被动再生阈值量。 该方法可选地包括产生更高的颗粒物排放输出值以加热发动机排气以使后处理催化剂达到最佳操作温度。 该方法可以用闭环反馈控制器实现，闭环反馈控制器可被配置为减少颗粒物质变化。

公开(公告)号：US20140109883A1

公开(公告)日：2014-04-24

申请号：US14044368

申请日：2013-10-02

申请人： Cummins Inc.

发明人： Yongjie Zhu ,  Vivek Anand Sujan ,  Govindarajan Kothandaraman

IPC分类号： F02M25/07

CPC分类号： F02M26/00 ,  F02D11/105 ,  F02D41/0007 ,  F02D41/0052 ,  F02D41/1402 ,  F02D41/1456 ,  F02D41/1461 ,  F02D2041/1409 ,  F02D2041/1418 ,  F02D2041/1422 ,  Y02T10/144 ,  Y02T10/47

摘要： Methods are disclosed for reducing the variability of particulate emissions in an exhaust stream from an internal combustion engine using a lambda error and/or a NOx error to control an exhaust gas recirculation fraction and/or a mass charge flow control. The methods include operating a controller to adjust the engine gas recirculation fraction and/or the mass charge flow control.

摘要翻译： 公开了用于减少来自内燃机的排气流中使用λ误差和/或NOx误差来控制废气再循环分数和/或质量流量控制的颗粒物排放变化的方法。 这些方法包括操作控制器来调节发动机气体再循环分数和/或质量流量控制。

公开(公告)号：US09835099B2

公开(公告)日：2017-12-05

申请号：US14950240

申请日：2015-11-24

申请人： Cummins Inc.

发明人： Yongjie Zhu ,  Vivek A. Sujan ,  Govindarajan Kothandaraman ,  Timothy R. Frazier

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/18

CPC分类号： F02D41/0052 ,  F02D41/0072 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/1406 ,  F02D41/1458 ,  F02D41/1461 ,  F02D41/1462 ,  F02D41/1467 ,  F02D41/18 ,  Y02T10/47

摘要： This disclosure provides a system and method for controlling internal combustion engine system to reduce operation variations among plural engines. The system and method utilizes single-input-single-output (SISO) control in which a single operating parameter lever is selected from among exhaust gas recirculation (EGR) fraction and charge air mass flow (MCF), and a stored reference value associated with the selected lever is adjusted for an operating point in accordance with a difference between a measured emissions characteristic and a pre-calibrated reference value of the emissions characteristic for that operating point. Adjusting the selected operating parameter lever towards the theoretical pre-calibrated reference value of the operating parameter lever for each of plural operating points can reduce engine-to-engine variations in engine out emissions.

公开(公告)号：US09228511B2

公开(公告)日：2016-01-05

申请号：US13656308

申请日：2012-10-19

申请人： CUMMINS INC.

发明人： Yongjie Zhu ,  Vivek J. Sujan ,  Govindarajan Kothandaraman ,  Timothy R. Frazier

IPC分类号： B60T7/12 ,  F02D41/00 ,  F02D41/14 ,  F02D41/18

CPC分类号： F02D41/0052 ,  F02D41/0072 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/1406 ,  F02D41/1458 ,  F02D41/1461 ,  F02D41/1462 ,  F02D41/1467 ,  F02D41/18 ,  Y02T10/47

摘要： This disclosure provides a system and method for controlling internal combustion engine system to reduce operation variations among plural engines. The system and method utilizes single-input-single-output (SISO) control in which a single operating parameter lever is selected from among exhaust gas recirculation (EGR) fraction and charge air mass flow (MCF), and a stored reference value associated with the selected lever is adjusted for an operating point in accordance with a difference between a measured emissions characteristic and a pre-calibrated reference value of the emissions characteristic for that operating point. Adjusting the selected operating parameter lever towards the theoretical pre-calibrated reference value of the operating parameter lever for each of plural operating points can reduce engine-to-engine variations in engine out emissions.

摘要翻译： 本公开提供了一种用于控制内燃机系统以减少多个发动机之间的操作变化的系统和方法。 该系统和方法采用单输入单输出（SISO）控制，其中从排气再循环（EGR）分数和增压空气质量流量（MCF）中选择单个操作参数杆，以及与 根据测量的排放特性与该工作点的排放特性的预校准参考值之间的差异，对所选择的杠杆进行调整。 对于多个操作点中的每一个，将所选择的操作参数杆调整到操作参数杆的理论预校准参考值可以减少发动机到发动机排放的发动机变化。