Method and device for calculating soot value of diesel engine

A diesel engine and soot technology, which is applied in the direction of exhaust device, electronic control of exhaust treatment device, diagnostic device of exhaust treatment device, etc. It can solve the problems of large environmental impact and inaccurate detection results, etc.
CN109306892BActive Publication Date: 2021-05-11WUXI WEIFU LIDA CATALYTIC CONVERTER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUXI WEIFU LIDA CATALYTIC CONVERTER
Publication Date
2021-05-11

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Abstract

The invention relates to the technical field of diesel engine post-processing, and specifically discloses a method for calculating the soot value of a diesel engine, which includes: judging the working state of the diesel engine according to the water temperature of the diesel engine, wherein the working state of the diesel engine includes a normal temperature state and a low temperature state; The soot parameters of the diesel engine, and establish the soot calculation model of the diesel engine by calibrating the soot parameters; if the working state of the diesel engine is a normal temperature state, calculate the soot mass flow rate of the diesel engine under the normal temperature state according to the soot calculation model of the diesel engine; if The working state of the diesel engine is a low temperature state, and the mass flow rate of the diesel engine soot under the low temperature state is calculated according to the diesel engine soot calculation model. The invention also discloses a device for calculating the soot value of the diesel engine. The method for calculating the soot value of the diesel engine provided by the invention has the advantage of being able to accurately estimate the soot emission value of the diesel engine.
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Description

technical field

[0001] The invention relates to the technical field of aftertreatment of diesel engines, in particular to a method for calculating the soot value of a diesel engine and a device for calculating the soot value of a diesel engine. Background technique

[0002] Diesel engine is currently the most widely used internal combustion power, and has been used in many aspects such as automobiles, non-road machinery and marine power. In recent years, more and more attention has been paid to the emission pollution of diesel engines. At present, the country has issued regulations on diesel engine emissions, which require gradually reducing the emissions of diesel engines to a controllable range. In order for the diesel engine to meet the requirements of emission regulations, the exhaust gas of the diesel engine needs to be post-treated to remove the NOx and soot in the exhaust gas of the diesel engine, so as to achieve the purpose of reducing the emission of the diesel en...

Claims

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