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The DLR lightweight robot: design and control concepts for robots in human environments

Open access
Albu‐Schäffer, A., Haddadin, S., Ott, Ch., Stemmer, A., Wimböck, T., Hirzinger, G.·2007·Industrial Robot: An International Journal

Abstract

Purpose: The paper seeks to present a new generation of torque‐controlled light‐weight robots (LWR) developed at the Institute of Robotics and Mechatronics of the German Aerospace Center. Design/methodology/approach: An integrated mechatronic design approach for LWR is presented. Owing to the partially unknown properties of the environment, robustness of planning and control with respect to environmental variations is crucial. Robustness is achieved in this context through sensor redundancy and passivity‐based control. In the DLR root concept, joint torque sensing plays a central role. Findings: In order to act in unstructured environments and interact with humans, the robots have design features and control/software functionalities which distinguish them from classical robots, such as: load‐to‐weight ratio of 1:1, torque sensing in the joints, active vibration damping, sensitive collision detection, compliant control on joint and Cartesian level. Practical implications: The DLR robots are excellent research platforms for experimentation of advanced robotics algorithms. Space and medical robotics are further areas for which these robots were designed and hopefully will be applied within the next years. Potential industrial application fields are the fast automatic assembly as well as manufacturing activities done in cooperation with humans (industrial robot assistant). The described functionalities are of course highly relevant also for the potentially huge market of service robotics. The LWR technology was transferred to KUKA Roboter GmbH, which will bring the first arms on the market in the near future. Originality/value: This paper introduces a new type of LWR with torque sensing in each joint and describes a consistent approach for using these sensors for manipulation in human environments. To the best of one's knowledge, the first systematic experimental evaluation of possible injuries during robot‐human crashes using standardized testing facilities is presented.

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Metadata

Authors
Albu‐Schäffer, A., Haddadin, S., Ott, C., Stemmer, A., Wimböck, T., & Hirzinger, G.
Venue
Industrial Robot: An International Journal
Publisher
Emerald
Published
2007-08-28
Volume
34
Issue
5
Pages
376-385
ISSN
0143-991X (ISSN-L)
OpenAlex
W2066202893
Cited by
623
References
10
FWCI
21.31
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The DLR lightweight robot: design and control concepts for robots in human environments. https://app.cochat.ai/papers/10.1108/01439910710774386
The paper
Albu‐Schäffer, A., Haddadin, S., Ott, C., Stemmer, A., Wimböck, T., & Hirzinger, G. (2007). The DLR lightweight robot: design and control concepts for robots in human environments. Industrial Robot: An International Journal. https://doi.org/10.1108/01439910710774386

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.