Model-based feedforward control in industrial robotics

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Grotjahn, M.; Heimann, B.: Model-based feedforward control in industrial robotics. In: International Journal of Robotics Research 21 (2002), Nr. 1, S. 45-60. DOI: https://doi.org/10.1177/027836402320556476

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/3021

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Sum total of downloads: 1,918




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Abstract: 
Simple linear joint controllers are still used in typical industrial robotic systems. The use of these controllers leads to non-negligible dynamic path deviations for applications that require high path accuracy. These deviations result from the strong influence of non-linearities, such as multi-body dynamics and gear friction. Sophisticated nonlinear control algorithms, known from the literature, are still not used because they usually require an expensive change of the control architecture. Therefore, different compensation methods are compared in this paper which reduce the path deviations by correction of the desired trajectory'. This means that no torque interface is required, only an interface for path corrections is necessary. Such an interface normnally exists so that the methods can simply be implemented within standard industrial controls. Using the industrial robot Siemens manutec-r15 the methods are experimentally compared with respect to their efficiency and practical applicability. Starting from this, one method is chosen for application to the state-of-the-art industrial robot KUKA KR15. The algorithm is based on a complete nonlinear dynamic model of the robot. It is integrated into the standard control KRC1. The experimental results prove the efficiency and the industrial applicability of the method.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2002
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 496 25.86%
2 image of flag of United States United States 277 14.44%
3 image of flag of China China 112 5.84%
4 image of flag of Taiwan Taiwan 75 3.91%
5 image of flag of Korea, Republic of Korea, Republic of 52 2.71%
6 image of flag of Netherlands Netherlands 50 2.61%
7 image of flag of Japan Japan 50 2.61%
8 image of flag of India India 45 2.35%
9 image of flag of France France 45 2.35%
10 image of flag of United Kingdom United Kingdom 44 2.29%
    other countries 672 35.04%

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