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Method and controller for controlling emissions from an internal combustion engine

A technology for internal combustion engines and controllers, applied to internal combustion piston engines, electrical control, engine control, etc., can solve problems such as inapplicability and failure to meet emission limit values, and achieve the effect of flexible application

Active Publication Date: 2021-02-23
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is not suitable for critical trips where the emission limit values ​​cannot be met for technical reasons

Method used

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  • Method and controller for controlling emissions from an internal combustion engine
  • Method and controller for controlling emissions from an internal combustion engine
  • Method and controller for controlling emissions from an internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0049] exist figure 1 A schematic diagram of an engine regulated or controlled by the controller 1 of the present invention is shown in . Shown is an internal combustion engine designed as a reciprocating piston engine 2 (diesel or petrol engine), which is charged via valve 3 and via charge air branch 4 and is evacuated via exhaust gas branch 5 . The air fed in passes through the air filter 6 and the exhaust gas turbocharger 7 with variable turbine geometry via the intercooler 8 via the inlet valve 3 into the cylinders, where fuel is optionally supplied via the injection system. After the compression and combustion of the air-fuel mixture, the resulting exhaust gas is discharged via the exhaust gas branch line 5 through the exhaust valve 3 .

[0050] The compressed exhaust gas passes through the exhaust gas turbocharger 7 , which drives the exhaust gas turbocharger 7 and thus compresses the charge air. The exhaust gas then passes through a storage nitrogen catalytic converte...

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PUM

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Abstract

The invention relates to a method for controlling emissions of an internal combustion engine, the method comprising: determining a cumulative emission variable (EMK) based on emission values ​​(EMDS) of a first emission variable in an operating interval of the internal combustion engine with different operating states of the internal combustion engine And based on the emission value of the first emission variable outside the operating range of the internal combustion engine (EMDS hist ,EMDS 22a ,EMDS 22a,hist ,...); and determine the reference variable (x(t)) of the internal combustion engine by means of the indifference curve (I) consisting of the Pareto-optimal combination of the cumulative emission variable and a second emission variable different from the first emission variable, where The reference variable (x(t)) influences the operating state of the internal combustion engine in such a way that the first emission variable and the second emission variable are adjusted in such a way that the cumulative emission variable (EMK) in the operating interval of the internal combustion engine does not exceed the upper limit of this operating interval (EMG), and the objective function of the second emission variable is minimal. The invention also relates to a controller (1) for carrying out the method according to the invention.

Description

technical field [0001] The invention relates to a method for controlling the emissions of a motor vehicle, in particular an internal combustion engine of a gasoline or diesel engine, and a controller for controlling the emissions of an internal combustion engine, in particular for carrying out the method of controlling emissions. Background technique [0002] Controllers are used to control important engine functions in the vehicle domain. In addition to structural measures such as the design of the combustion chamber and the influence of the mixture formation via the injection system and injection method, the controller can also be used in particular to reduce fuel consumption and the associated CO2 emissions during engine operation as well as to reduce essential exhaust gas components such as carbon monoxide ( CO), hydrocarbons (HC), nitrogen oxides (NOx) and carbon black (or soot (Ruβ)) and particles. [0003] Known functions of the controller obtain information about t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N11/00F01N9/00
CPCF01N9/00F01N11/00F01N2900/0418F02D41/005F02D41/021F02D41/1406F02D41/1452F02D41/1462F02D41/1467F02D2041/1412F02D2200/70F02D2200/701F02D2250/36F02D2250/38Y02T10/40
Inventor O.卡西鲍姆H-G.尼茨克J.杰什克B.塞格罗普M.玛祖尔
Owner VOLKSWAGEN AG