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Method and system for establishing model value of soot content of gasoline particulate filter

A particle filter and a technology for establishing a method are applied in the field of establishing the model value of the soot content of gasoline particle filters, which can solve the problems of burning the particle filter affecting fuel consumption and driving performance, and achieve the effect of avoiding safety risks and solving driving performance.

Active Publication Date: 2022-03-11
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a method and system for establishing a soot content model value of a gasoline particulate filter, so as to solve the problem of burning the particulate filter or affecting fuel consumption and drivability caused by an incorrect soot content model

Method used

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  • Method and system for establishing model value of soot content of gasoline particulate filter
  • Method and system for establishing model value of soot content of gasoline particulate filter
  • Method and system for establishing model value of soot content of gasoline particulate filter

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Embodiment Construction

[0035] A method and system for establishing a soot content model value of a gasoline particulate filter proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0036] The core idea of ​​the present invention is to provide a method and system for establishing a soot content model value of a gasoline particulate filter, so as to solve the problem of burning the particulate filter or affecting fuel consumption and driving performance caused by an incorrect soot content model.

[0037] In order to realize the above idea, the present invention provides a method and sys...

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Abstract

The present invention provides a method and system for establishing a model value of soot content of a gasoline particulate filter. The method for establishing a model value of soot content of a gasoline particulate filter includes: obtaining the original emission of soot by measuring on a bench or a rotating hub of an engine value; according to the measurement of the engine sensor to obtain the combustion rate of soot, the combustion rate of the soot is multiplied by the combustion time to obtain the combustion amount; the original emission value of the soot and the combustion amount are subtracted and integrated to obtain the soot content model value; the oxygen consumed by the combustion of the soot is measured According to the amount of oxygen consumed by the soot combustion, combined with the physical model of combustion oxygen consumption, the measured value of the soot content is obtained; the measured value of the soot content is compared with the model value of the soot content, and according to the measured value of the soot content Correct the soot content model values.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a method and system for establishing a smoke content model value of a gasoline particle filter. Background technique [0002] In automobile engines, internal purification measures such as improving the injection method (such as PDI dual injection, PFI high-pressure injection, etc.), optimizing engine calibration, etc. can ensure that the engine PN emission meets the current CN6B regulations. However, when the engine is aging or the regulations are tightened, these measures Emissions requirements may not be met, such as engine deposits, more aggressive driving cycles, or RDEs that include cold engine emissions. The particulate filter (GPF) of a gasoline engine is a particulate matter trapping device for a gasoline engine. Its basic principle is to capture particulate matter in the exhaust gas (such as figure 1 As shown), the capture efficiency can reach 60-90%, so GPF ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N11/00F01N9/00F01N3/023G01M15/10
CPCF01N11/00F01N9/00F01N3/023G01M15/102Y02T10/40
Inventor 庄兵
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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