Dr.-Ing. Dennis Kähler

Hamburg University of Technology
Institute for Mechatronics in Mechanics (M-4)

Building O (Eißendorfer Str. 38)
Room 012

Tel.: +49 (0) 40 428-78-4206
E-mail: dennis.kaehler@tuhh.de


I like to work on interdisciplinary tasks. My current research deals with electrical 3D impedance tomography (EIT). From this, process variables in various technical applications can be derived in real time. My former reseach during my PHD dealed with parallel real-time simulation of mechatronic systems in hardware-in-the-loop applications for the automotive industry. Through this work I have acquired my competences in the fields of modelling, measurement technology, signal filtering, hardware near programming, electronics, FPGAs and numerical methods. I love programming to solve any kind of problem and to speed up or optimize work processes. For this I mainly use Python, C++ or Matlab. An other passion of mine is working on the best possible graphic representation of data of any kind, mostly done with Python.


10/2019 -
Chief engineer, Institute for Mechatronics in Mechanics, Hamburg University of Technology
02/2015 -
Research Assistant, Institute for Mechatronics in Mechanics (formerly Institute for Electric Power Systems and Automation), Hamburg University of Technology
04/2012 -
M. Sc. Student, Hamburg University of Technology, Thesis: Experimental investigation of a plant for the geothermal and sorption-supported air conditioning
12/2010 -
Working Student at Imtech Deutschland GmbH & Co. KG in the department of military vessels
10/2008 -
B. Sc. Student, Hamburg University of Technology, Thesis: Design and regulation for the combustion air supply in an engine test bench
07/1999 -
Theodor-Heuss-Gymnasium (highschool) in Pinneberg



  • Electrical Machines

Help and organization

  • Basics of Electrical Engineering
  • Measurement technology
  • Lab: Measurement and Control Technology (Experiment 2: Simulation and measurement of an asynchronous machine and centrifugal pump)


Title: Novel Method for Multi-scale Hardware-in-the-Loop Simulation of Automotive Mechatronic Components. <em>2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)</em>
Written by: Kähler, Dennis and Ackermann, Günter and Brinkmeyer, Horst
in: jun (2018).
Volume: Number:
on pages: 1352--1357
Publisher: IEEE:
ISBN: 978-1-5386-4941-1
how published:
DOI: 10.1109/SPEEDAM.2018.8445299
URL: https://ieeexplore.ieee.org/document/8445299/



Abstract: With more and more complex electronic control units (ECU) in modern automotive applications the need for adequate testing possibilities rises. This paper presents a hardware-in-the-loop (HIL) test implementation for ECUs with very high dynamic capabilities. Based on real time parallel analog and digital simulation it is able to process pulse width modulated (PWM) signals with up to 25 kilohertz with step sizes of 385 nanoseconds. The simulation’s digital output signal drives newly developed power electronics, processing the high dynamic simulation results with a resolution of 1 milliampere and a current change rate of 6.4 ampere per microsecond. In addition generic simulation models of different loads are developed.

Student works

  • Harms, J.: Parameter-dependent step size control for a HIL simulation for testing automotive control units, Masterthesis, 2018
  • Dierfeld, L.: Simulation of an electronic control unit for an automotive window regulator to validate a HIL simulation, Bachelorthesis, 2018
  • Wolters, R.: Optimization and implementation of a digital IIR filter for application in a HIL simulation, Project work, 2018
  • Tsobgni, D.: Experimental investigation of an automotive mirror adjustment system, Bachelorthesis, 2017
  • Baum, L.: Parameterization and validation of a simulation model for BLDC motors through experimental study of an automotive circulation pump, Bachelorthesis, 2016
  • Neumann, M.: Development of a user interface for parameterization of generic simulation models, Project work, 2016
  • Stepanow, K.: Experimental analysis of a permanent magnet direct current motor from the automotive sector with a pulse with modulated control, Project work, 2016
  • Reiche, T.: FPGA for the fast simulation in hardware-in-the-loop testbed, Bachelorthesis, 2016
  • Miekautsch, F.: Experimental study and simulation of an automobile horn, Project work, 2016
  • Heeren, L.: Experimental analysis and simulation of permanent magnet DC motors in actuators as used in automobiles, Bachelorthesis, 2015
  • Le, J.: Modelling, simulation and experimental parameter identification for an electric window regulator drive, Bachelorthesis, 2015