Research Unit 2401

Optimization-Based Multiscale Control of Low-Temperature Combustion Engines

Innovative and promising low-temperature combustion processes

Interdisciplinary approach

Novel optimization-based multiscale control approach

The application of low-temperature combustion processes (NTV) to both gasoline engines (Homogeneous Charge Compression Ignition, HCCI) and diesel engines (Premixed Charge Compression Ignition, PCCI) promises reduced emissions while maintaining high efficiency. Therefore, NTV has a high potential to reduce global greenhouse gas emissions as well as local pollutant levels.

The thematic and methodological linkage of subprojects from the fields of chemistry, combustion and control technologies, and numerical methods is crucial for the realization of this highly complex challenge. The close cooperation between the research institutions is supported by an extensive networking of our subprojects.

The stability and emission formation are strongly dependent on the composition of the mixture and low-temperature reaction kinetics. For a detailed description of these processes and an optimization-based control, cyclic scales are not sufficient. In the multiscale approach of the FOR 2401, the control loop is therefore closed both from cycle to cycle and additionally within a combustion cycle.