公开(公告)号：WO2020106493A1

公开(公告)日：2020-05-28

申请号：PCT/US2019/060887

申请日：2019-11-12

Applicant: CUMMINS INC.

Inventor： HARSHE, Omkar A. ,  HSIEH, Ming-Feng

IPC: F02D37/02 ,  F02P5/145 ,  F02B37/18

Abstract: A spark ignited internal combustion engine is controlled in response to a self-learned TOB reference. The self-learned TOB reference is based on a difference between a learned TOB offset and a desired or target TOB, and a sensed TOB. The learned TOB offset at a given operating condition, such as charge pressure, can be found by interpolating between the learned charge pressure breakpoints in a TOB learning algorithm. The TOB learning algorithm can include using a filtered charge pressure value to indicate the engine load at which the TOB is learned. An index determination is made with a look up table with charge pressure as an input and an array index of learned charge pressure and learned TOB offset as outputs.

公开(公告)号：WO2019125616A1

公开(公告)日：2019-06-27

申请号：PCT/US2018/059324

申请日：2018-11-06

Applicant: CUMMINS INC.

Inventor： HALBE, Mayura H. ,  THOMAS, Robert J. ,  HSIEH, Ming-Feng

IPC: F02M26/05 ,  F02D21/06 ,  F02D21/08 ,  F02D41/00 ,  F02M26/02 ,  F02M26/06

Abstract: Systems, methods and apparatus are disclosed for producing a target compressor outlet pressure that is based on a desired pressure differential across an intake throttle of an internal combustion engine and an intake manifold pressure by opening or closing a compressor recirculation valve and a turbocharger wastegate to commanded positions based on the target compressor outlet pressure.

公开(公告)号：WO2015191826A1

公开(公告)日：2015-12-17

申请号：PCT/US2015/035284

申请日：2015-06-11

Applicant: CUMMINS INC.

Inventor： GARIMELLA, Phanindra, V. ,  HSIEH, Ming-Feng

IPC: F01N3/035 ,  F01N9/00 ,  F01N11/00 ,  G06F9/305

CPC classification number: F01N3/208 ,  F01N9/00 ,  F01N11/00 ,  F01N11/002 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0404 ,  F01N2900/0408 ,  F01N2900/0411 ,  F01N2900/0412 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1621 ,  Y02T10/24

Abstract: A system and method for using feed-back information, such as, for example, system-out NO x levels, to provide for closed-loop selective catalytic reduction control. A reference generation module may adjust an ideal SCR conversion value based on a quantity of reductant slippage from the engine system so as to provide an adjusted ideal SCR conversion efficiency value. The adjusted ideal SCR conversion efficiency value may then be used to generate a reductant to NO x ratio that corresponds to an ideal reductant dosing command. The ideal reductant dosing command may be further adjusted to account for low frequency variations, such as, low frequency variations in the SCR system, to generate an adjusted ideal reductant dosing command. The adjusted ideal reductant dosing command may be further adjusted to reflect high frequency variations in the SCR system, before a final reductant dosing command is generated for a reductant injector.

Abstract translation: 使用反馈信息（例如，系统输出的NOx水平）来提供闭环选择性催化还原控制的系统和方法。 参考生成模块可以基于来自发动机系统的还原剂滑动量来调整理想的SCR转换值，以提供经调整的理想SCR转换效率值。 然后可以使用经调节的理想SCR转换效率值来产生对应于理想的还原剂配量命令的还原剂的NOx比。 可以进一步调节理想的还原剂配量命令以考虑低频变化，例如SCR系统中的低频变化，以产生经调节的理想还原剂配料命令。 在为还原剂注射器生成最终的还原剂配量命令之前，可以进一步调整调节的理想的还原剂配量命令以反映SCR系统中的高频变化。

公开(公告)号：WO2015066666A1

公开(公告)日：2015-05-07

申请号：PCT/US2014/063790

申请日：2014-11-04

Applicant: CUMMINS INC.

Inventor： GARIMELLA, Phanindra, V. ,  HSIEH, Ming-Feng ,  OSBURN, Andrew, W.

IPC: F02D41/30

CPC classification number: F02D41/1461 ,  F02D37/02 ,  F02D41/0007 ,  F02D41/0052 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/40 ,  F02D2041/141 ,  F02D2200/0614 ,  F02D2200/101 ,  Y02T10/144 ,  Y02T10/44 ,  Y02T10/47

Abstract: Unique apparatuses, methods, and systems including engine-out emissions controls are disclosed. One embodiment is a system including an internal combustion engine system including at least one fueling actuator and at least one air handling actuator and an electronic controller. The electronic structure may be structured to determine initial values for a plurality of combustion references, determine a plurality of target emissions values or ranges based upon the plurality of combustion references, determine errors between the emissions target values or ranges and sensed emissions information, determine correction factors and weighting factors for the combustion references, the weighting factors being based at least in part upon the errors between the between the emissions target values or ranges and sensed emissions information.

Abstract translation: 公开了独特的设备，方法和系统，包括发动机排放控制。 一个实施例是包括内燃机系统的系统，该内燃机系统包括至少一个加油致动器和至少一个空气处理致动器和电子控制器。 电子结构可以被构造为确定多个燃烧参考的初始值，基于多个燃烧参考确定多个目标发射值或范围，确定发射目标值或范围之间的误差以及感测的发射信息，确定校正 因素和加权因子，加权因子至少部分地基于排放目标值或范围之间的误差和感测的排放信息。