Journal article

Control Barrier Functions for Mechanical Systems: Theory and Application to Robotic Grasping

Wenceslao Shaw Cortez, Denny Oetomo, Chris Manzie, Peter Choong

IEEE Transactions on Control Systems Technology | Institute of Electrical and Electronics Engineers (IEEE) | Published : 2020

Abstract

Control barrier functions have been demonstrated to be a useful method of ensuring constraint satisfaction for a wide class of controllers. However, the existing results are mostly restricted to continuous-time systems. Mechanical systems, including robots, are typically second-order systems in which the control occurs at the force/torque level. These systems have actuator, velocity, and position constraints (i.e., relative degree two) that are vital for safety and/or task execution. Additionally, mechanical systems are typically controlled digitally as sampled-data systems. The contribution of this article is twofold. The first contribution is the development of novel, robust control barrie..

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