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Method for operating an internal combustion engine and control device for carrying out the method

A technology of internal combustion engine and fuel, which is applied in the direction of engine control, fuel injection control, internal combustion piston engine, etc. It can solve the problems of easy interference of control/regulation and achieve the effect of cost optimization

Active Publication Date: 2021-08-17
MAN ENERGY SOLUTIONS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the described control / regulation is susceptible to interference

Method used

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  • Method for operating an internal combustion engine and control device for carrying out the method
  • Method for operating an internal combustion engine and control device for carrying out the method

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Embodiment Construction

[0015] The invention relates to a method for operating an internal combustion engine and a control device for carrying out the method.

[0016] figure 1 A greatly simplified block diagram of an internal combustion engine is shown, which includes a combustion motor 2 and an exhaust gas aftertreatment system 3 arranged downstream of the combustion motor 2 . Fuel 4 and charge air 5 for combustion of fuel 4 are supplied to internal combustion motor 2 , wherein exhaust gas 6 generated in combustion motor 2 during combustion of fuel 4 is treated for exhaust gas aftertreatment. The exhaust gas is fed to the exhaust gas aftertreatment system 3 , and the exhaust gas leaves the exhaust gas aftertreatment system 3 as cleaned exhaust gas 7 .

[0017] In the exemplary embodiment shown, it is assumed that the exhaust gas aftertreatment system 3 is an exhaust gas aftertreatment system comprising at least one SCR catalyst in which a reducing agent is required for exhaust gas purification 8 ...

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Abstract

A method for operating an internal combustion engine (1), in particular a marine diesel internal combustion engine operated on heavy fuel oil, wherein the internal combustion engine (1) has a combustion motor (2) for burning fuel and is arranged on the combustion motor ( 2) The latter exhaust gas aftertreatment system (3), which is used to purify the exhaust gas produced during fuel combustion using reducing agents and / or absorbents, and wherein according to the The cost of the fuel burned in the motor (2) and the cost of reducing agents and / or absorbents to be used in the exhaust gas aftertreatment system (3) for exhaust gas aftertreatment are automatically operated in an operating point The internal combustion engine (1) at the operating point produces a minimum operating medium cost of fuel and reducing agent and / or absorbent.

Description

technical field [0001] The invention relates to a method for operating an internal combustion engine (Brennkraftmaschine), wherein the internal combustion engine has a combustion motor for burning fuel and an exhaust gas aftertreatment system arranged downstream of the combustion motor, the exhaust gas aftertreatment system for Purification of the exhaust gases produced during the combustion of fuels is carried out using reducing agents and / or absorbents. Furthermore, the invention relates to a control device for carrying out the method. Background technique [0002] Known internal combustion engines from practice, such as marine diesel internal combustion engines, have a combustion motor (Verbrennungsmotor) in which fuel is combusted and a motor arranged downstream of the combustion motor for controlling the combustion of the fuel An exhaust gas post-treatment system for purifying the exhaust gas generated in the above-mentioned combustion motor. The marine diesel interna...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14F02D19/06
CPCF02D19/06F02D41/14F01N3/0807F01N3/105F01N3/2066F01N3/208F01N11/00F01N2560/02F01N2590/08F01N2610/02F01N2900/0416F01N2900/08F02D19/0657F02D41/0025F02D41/0235F02D41/025F02D2200/701F02D2250/36Y02T10/12Y02T10/30F01N9/00F02D19/0602
Inventor M.布格施A.德林
Owner MAN ENERGY SOLUTIONS SA