Determine engine discharge no based on cylinder contents x systems and methods
An engine, engine cylinder technology, applied in the direction of internal combustion piston engines, engine components, combustion engines, etc., to solve problems such as sequence, timing and control less than ideal, failure mode detection and correction limitations, monitoring and testing effect limitations, etc.
Active Publication Date: 2021-08-17
CUMMINS LTD
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Problems solved by technology
While such monitoring and testing may be convenient, the effectiveness of monitoring and testing is limited by the inability of the engine to operate outside of a given road calibrated operating range
[0006] Additionally, the sequence, timing, and control of such procedures may be less than ideal as on-road operational requirements often take precedence over diagnostic and performance restoration procedures
As a result, detection and correction of various failure modes in exhaust aftertreatment systems can be limited
Method used
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Embodiment Construction
[0024] The following are related to help determine the engine exhaust NO x Various concepts related to methods, devices and systems for quantifying and contributing to the determination of engine emitted NO from internal combustion engines x Detailed description of various embodiments of methods, apparatuses, and systems. The various concepts introduced above and discussed in more detail below can be implemented in any of numerous ways, and the concepts described are not limited to any particular implementation. Examples of specific implementations and applications are provided primarily for purposes of illustration.
[0025] Referring generally to the figures, embodiments disclosed herein relate to a system and method that facilitate determining an engine-out NOx amount of an internal combustion engine. In accordance with the present disclosure, a controller identifies a plurality of in-cylinder data points that are selected for the engine to emit NO x One or more in-cylin...
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An apparatus includes an engine module, an in-cylinder content module, and an engine out NOx module. The engine module is configured to interpret engine in-cylinder data regarding operating conditions within cylinders of the engine, wherein the engine in-cylinder data includes engine torque, engine speed, rail pressure, and start of injection. The in-cylinder content module is configured to interpret at least one additional in-cylinder data point regarding an operating state within a cylinder of the engine. The engine-out NOx module is configured to determine an engine-out NOx amount in response to the engine in-cylinder data and at least one additional in-cylinder data point.
Description
[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to US Provisional Patent Application No. 62 / 114,399, filed February 10, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to methods for determining engine exhaust nitrogen oxides (NO x ) systems and methods for measuring. More specifically, the present disclosure relates to methods for determining engine out NO from one or more in-cylinder data points / values. x Quantitative systems and methods. Background technique [0004] Emission regulations for internal combustion engines have become stricter in recent years. Environmental concerns have prompted stricter emissions requirements for internal combustion engines in most parts of the world. Government agencies, such as the Environmental Protection Agency (EPA) in the United States, carefully monitor the emission quality of engines and set the emiss...
Claims
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IPC IPC(8): F02D41/14
CPCF01N3/035F01N3/106F01N3/2066F01N3/208F01N2370/04F01N2560/021F01N2560/06F01N2560/14F01N2570/18F01N2610/03F01N2900/0416F01N2900/1402F01N2900/1404F02D35/02F02D35/026F02D41/0062F02D41/0072F02D41/1458F02D41/1462F02D2041/228F02D2200/0418F02D2200/0602F02D2250/36F01N13/009Y02T10/12Y02T10/40F01N2610/02F01N2900/08F02D41/1454F02D41/1461F02D2041/1472F02D2200/021F02D2200/1002F02D2200/101
Inventor P·V·加里梅拉A·古普塔谢明峰P·V·穆杰力A·普林G·维施瓦纳塞
Owner CUMMINS LTD