Method for operating an internal combustion engine installed in a vehicle

A technology in internal combustion engines and vehicles, which is applied in the direction of internal combustion piston engines, combustion engines, and electronic control of exhaust gas treatment devices. It can solve problems such as unreasonable engine control system design customers, difficulty in compliance with emission limits, and large degrees of freedom.
CN110073093BActive Publication Date: 2022-05-13DRESDEN UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DRESDEN UNIVERSITY OF TECHNOLOGY
Publication Date
2022-05-13

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Abstract

The invention relates to a method for operating an internal combustion engine installed in a vehicle, in particular a diesel engine, wherein after exhaust gas aftertreatment the instantaneous concentration of pollutants contained in the exhaust gas is measured or calculated in the direction of flow, said Concentrations especially NO in exhaust gas x concentration. Using the determined pollutant concentrations, compliance with pollutant limit values ​​in mg / km based on predefined distances is monitored by means of operating parameters of the internal combustion engine and / or the exhaust gas aftertreatment system which in particular influence the form of regulation and / or compliance with pollutant limits based on predefined power in mg / kWh.
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Description

technical field

[0001] The invention relates to a method for operating an internal combustion engine installed in a vehicle, in particular a diesel engine preferably installed in a passenger car. Background technique

[0002] The continuous tightening of emission limits thus justifies the use of corresponding measures both inside and outside the engine. especially for NO x Emissions, based on acceptable limits, are projected to decrease by up to 73% between 1990 and 2020. However, measures taken by the Federal Environment Agency have so far failed to verify these predictions. In particular, NO close to transportation and downtown 2 Emissions still show consistently high values. Due to the fact that this is mainly due to deviations between the emission values ​​during the test cycle and during customer operation, from September 2017, within the scope of the certification process, exhaust emissions during actual driving operation will also be introduced Tested to show pos...

Claims

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