Pre-Implementation Analysis of Distributed Control Systems - PICADOR
Project no: 0005-18
Martin Törngren, Ola Redell and Jan Wikander
Royal Institute of Technology, Department of Machine Design, Division of Mechatronics (DAMEK)
Application and support letter from SAAB Automobile AB
Comments by evaluators.
Support: 1 PhD student for 2 years decided 00-06-16.
Start: 2000-09-01 with Ola Redell as PhD student.
Reports: First-year-report 2001-07-16

Industry contact

Kenneth Lind
SAAB Automobile AB
Project 1: Functional Integration and Interference in Embedded Control Systems
Project 2: Pre-Implementation Analysis of Distributed Control Systems - PICADOR


The Picador project focuses on analysis of implementation effects of distributed control systems. One goal has been to develop an analysis method for distributed real-time systems and connecting it to the analysis of control system performance. The analysis method is to give tight estimations of timing performance important for the control behaviour, including response times and jitter (variations) in the release and response periods. Another goal is to provide a tool-set for evaluation of control system performance, connecting the analysis method to a control simulation environment in which control related effects can (and are normally) studied by control engineers.


The development of the first close-to-complete version of the AIDA tool-set is to be finished by the end of July 2001.


We have established an industrial reference group for the projects Picador and AIDA including representatives of the companies Volvo Wheel Loaders, Bombardier Transportation, Arcticus Systems, Saab and Combitech.


  1. Redell, O. Response Time Analysis for Implementation of Distributed Control Systems. Mechatronics Lab, Department of Machine Design, Royal Institute of Technology, S-100 44 Stockholm, Sweden, TRITA-MMK 2003:17, ISSN 1400-1179, ISRN KTH/MMK/R--03/17--SE. 2003.

  2. Ola Redell, Jad Elkhoury and Martin Törngren. AIDA II Automatic control in distributed applications. ARTES Graduate Student Conference 2000.
  3. Martin Törngren , Jad Elkhoury, Ola Redell, Martin Sanfridson. Modelling and Simulation of Embedded Computer Control Systems: Problem formulation, Technical report, Mechatronics lab, Dept. of Machine Design, KTH. TRITA-MMK 2001:3, ISSN 1400-1179, ISRN KTH/MMK 01/3-SE
  4. Martin Törngren and Ola Redell, A Modelling Framework to support the design and analysis of distributed real-time control systems. J. of Microprocessors and Microsystems 24 (2000) 81-93.
  5. Ola Redell and Jad El-Khoury. Summary of Meetings at SAAB Automobile in Trollhättan. Internal report. Damek, KTH, July 2000
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