no image

M.Sc. Jan Brüdigam

Technical University of Munich

Chair of Information-oriented Control (Prof. Hirche)

Postal address

Postal:
Barerstr. 21
80333 München

Short Biography

Since 08/2020 Research Assistant and PhD Candidate
Chair of Information-oriented Control (ITR)
Technical University of Munich, Germany (TUM)
09/2019 – 05/2020 Master Thesis: Variational Integrators in Maximal Coordinates
Stanford University, USA
2017 – 2020 Master of Science, Electrical and Computer Engineering
Focus: Robotics, Control Theory and Numerical Optimization
Technical University of Munich, Germany (TUM)
03/2017 – 09/2017 Bachelor Thesis: Control of Soft Exoskeletons
Harvard University, USA
2014 – 2017 Bachelor of Science, Electrical and Computer Engineering
Focus: Control Theory and Robotics
Technical University of Munich, Germany (TUM)

 

Research

SeaClear

Today's oceans contain tons of waste, most of which can be found underwater. While a lot of effort has been put into the collection of maritime surface waste, to this day only few attempts were made at collecting litter on the sea floor. Additionally, most submarine measures require human divers, complicating such procedures even further.

As a Team of researchers at TUM and in collaboration with partners across Europe, for the SeaClear project we are working on strategies to automate the collection of underwater waste. For this purpose, we develop concepts for autonomous robots that can support us in this task.

Resulting are a number of interesting research questions in a diverse field of topics:

  • Hardware: The collection of waste requires the development of appropriate mechanical grippers.
  • Robotics and Control: Modelling and control of underwater robots and the cooperation with humans call for novel theoretical concepts.
  • Artificial Intelligence: Bad vision underwater in addition to many unknown disturbances opens up several interesting applications for machine learning.

Robotic Grasping

Today, robots are commonly used in industrial settings for a variety of tasks. However, in our everyday lives, besides simple wheeled systems, advanced robots have not yet found wide usage. One of the main reasons for this fact is that robotic grasping is currently rather underdeveloped. Additionally, most methods for grasping are restricted to parallel-jaw grippers which are insufficient for more complex tasks.

Consequently, we are researching robotic grasping with dexterous (hand-like) grippers in various scenarios. In this pursuit, we are using both modern learning-based methods as well as classical approaches from optimization and optimal control. 

Robotics in Maximal Coordinates

Typically, robotic systems are described in minimal (also called generalized) coordinates. Here, each coordinate represents a single degree of freedom of the underlying structure (for example the angle of a pendulum). The advantage of this parameterization lies in the small number of variables and the avoidance of constraints.

However, for modern robots carrying out complicated tasks minimal coordinates are not always ideal. Instead, it can be beneficial to use maximal coordinates basically resulting in a decoupled description of the system which can then be put together with additional constraints. This type of representation offers a number of numerical and control theoretic advantages. At the same time there are quite a few open questions still to be answered.

Code for a dynamics simulation in maximal coordinates can be found here:
https://github.com/janbruedigam/ConstrainedDynamics.jl

Selected Publications

2022

  • J. Brüdigam; M. Schuck; A. Capone; S. Sosnowski; S. Hirche: Structure-Preserving Learning Using Gaussian Processes and Variational Integrators. 4th Annual Conference on Learning for Dynamics and Control, 2022 more… BibTeX Full text (mediaTUM)

2021

  • J. Brüdigam, J. Janeva, S. Sosnowski, and S. Hirche: Linear-Time Contact and Friction Dynamics in Maximal Coordinates using Variational Integrators. 2022 IEEE International Conference on Robotics and Automation (ICRA) (submitted), 2021 more… BibTeX Full text (mediaTUM)

2020

  • J. Brüdigam and Z. Manchester: Linear-Time Variational Integrators in Maximal Coordinates. Workshop on the Algorithmic Foundations of Robotics (WAFR), 2020 more… BibTeX Full text (mediaTUM)