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Published December 16, 2021 | Version v1
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Gaussian Process Position-Dependent Feedforward: With Application to a Wire Bonder

  • 1. Eindhoven University of Technology
  • 2. ASM PT


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  • 1. ASM PT


Mechatronic systems have increasingly stringent performance requirements for motion control, leading to a situation where many factors, such as position-dependency, cannot be neglected in feedforward control. The aim of this paper is to compensate for position-dependent effects by modeling feedforward parameters as a function of position. A framework to model and identify feedforward parameters as a continuous function of position is developed by combining Gaussian processes and feedforward parameter learning techniques. The framework results in a fully data-driven approach, which can be readily implemented for industrial control applications. The framework is experimentally validated and shows a significant performance increase on a commercial wire bonder.



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