Method and system for detecting influence of combustion chamber machining parameters on emission based on big data

A technology of processing parameters and detection methods, applied in special data processing applications, design optimization/simulation, chemical process analysis/design, etc., can solve problems such as diesel engines exceeding emission limits and failing to meet emission consistency requirements.

Active Publication Date: 2021-05-14
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the dimensional fluctuations caused by the tolerance of processing parameters may cause the diesel engine to exceed the emission limit, and the traditional tolerance range used to test the processing quality cannot meet the emission consistency requirements

Method used

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  • Method and system for detecting influence of combustion chamber machining parameters on emission based on big data
  • Method and system for detecting influence of combustion chamber machining parameters on emission based on big data
  • Method and system for detecting influence of combustion chamber machining parameters on emission based on big data

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Experimental program
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Embodiment 1

[0035] This embodiment provides a big data-based detection method for the influence of combustion chamber processing parameters on emissions, which can analyze the impact of changes in diesel engine piston combustion chamber processing parameters on the consistency of NOx emissions, such as figure 1 shown, including:

[0036] Construct a diesel engine combustion model, select different processing parameters of the piston combustion chamber for simulation calculation, and obtain the simulation results;

[0037] Analyze the simulation results to obtain the influence law of each parameter change on the consistency of NOx emissions; calculate the processing threshold of key parameters according to the law;

[0038] Obtain key processing parameter data, and use big data tools to determine the distribution range of processing parameters.

[0039] Further, first select the key parameters (throat diameter, constriction diameter and combustion chamber depth) in the process of combusti...

Embodiment 2

[0060] This embodiment provides a diesel engine combustion chamber processing quality inspection system based on big data analysis, including:

[0061] The combustion model building module is configured to: build a diesel engine combustion model, select different piston combustion chamber processing parameters for simulation calculation, and obtain simulation results;

[0062] The processing threshold calculation module is configured to: analyze the simulation results to obtain the influence law of each parameter change on the NOx emission consistency; calculate the key parameter processing threshold according to the law;

[0063] The distribution threshold calculation module is configured to: acquire key processing parameter data, and use big data tools to determine the distribution range of the processing parameter.

Embodiment 3

[0065] This embodiment provides an electronic device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, the combustion chamber based on big data is realized. Process parameters affect emission detection methods.

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Abstract

The invention discloses a method and system for detecting the influence of combustion chamber machining parameters on emission based on big data, and the technical scheme is that the method comprises the steps: constructing a diesel engine combustion model, selecting different piston combustion chamber processing parameters for simulation calculation, and obtaining a simulation result; analyzing the simulation result to obtain the influence rule of the change of each parameter on the NOx emission consistency; calculating a key parameter processing threshold according to the rule; obtaining key machining parameter data, and determining the machining parameter distribution range through a big data tool; the method comprises the following steps: firstly, constructing a diesel engine combustion model, calculating and obtaining an influence rule of each parameter on emission, and processing collected processing data based on the emission rule and in combination with a big data theory to obtain a processing parameter tolerance threshold so as to detect the processing quality of the diesel engine combustion chamber.

Description

technical field [0001] The invention relates to the technical field of diesel engines, in particular to a method and system for detecting the influence of combustion chamber processing parameters on emissions based on big data. Background technique [0002] The piston combustion chamber is an important part of the diesel engine. The piston combustion chamber has a direct impact on the power, economy and emission of the diesel engine. At present, as the emission has entered the National VI stage, the NOx emission limit has been greatly reduced, and the sensitivity to emission fluctuations has increased. It is necessary to control the processing quality and improve the emission consistency to enhance product competitiveness. [0003] The detection of diesel engine processing quality is mainly based on the design requirements, and the tolerance of the combustion chamber processing parameters is collected through the tool of measuring tolerance. The dimensional fluctuations ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G16C20/10
CPCG06F30/20G16C20/10
Inventor 闫伟王健杨晓峰王辉李国祥豆腾尧
Owner SHANDONG UNIV
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