AKS Research focus

With continuously growing demands for high reliability and availability of systems, the topics fault diagnosis, process monitoring and fault-tolerant systems gain more and more importance in research and industry. As an internationally leading team, the institute AKS has significantly contributed to the development of model-based fault-diagnosis technologies. The current research focuses of the AKS include:

  • Methods of observer-based fault diagnosis and fault tolerant systems

  • Data-driven process monitoring and asset management

  • Fault-tolerant engine management systems

  • Fault-tolerant embedded and networked control systems.

Header Project

Methods of observer-based fault diagnosis and fault tolerant systems

​Integrated design of observer-based fault diagnosis systems for linear processes
  • LTI-systems
  • sampling data systems
  • periodic systems
  • LTV systems
Integrated design of observer-based fault diagnosis systems for nonlinear processes
  • Study on a class of nonlinear systems
  • Co-inner-outer factorization based integrated design
  • Game theoretic design
Application of hybrid-system theory to fault diagnosis
  • Hybrid-modelling and systems
  • Multiple model based methods
  • Application to driving dynamics control systems
Residual generation embedded in closed-loop control systems.

Data-driven process monitoring and asset management

 

  • Data-driven design of observer-based fault diagnosis systems
  • Data-driven design of adaptive observer-based fault diagnosis systems
  • Recursive implementation of Parity vectors
  • Recursive implementation of PCA and PLS
  • Asset management strategies
  • Application to benchmark processes and real chemical processes
     

Fault-tolerant engine management systems

 

Observer design, fault diagnosis, especially On-Board Diagnosis (OBD), and performance monitoring for engine management systems have become of great interest during last years. The R&D activities in this area are characterized by a close cooperation between IAV GmbH and AKS. The overall goal is the development of new, cost efficient methods for the use in modern engine control units and for the application tools used in the design stage of new vehicles.

Fault-tolerant embedded and networked control systems

 

The objective of this research activity is to develop new methods to analyze and design observer-based fault tolerant monitoring and supervision systems for wireless networked control systems. In a close cooperation of communication group (NTS University of Duisburg-Essen), the network performance (QoS) and communication strategies will be deeply investigated, and integrated in the system design to optimize the overall system performance.