24 papers · 1 filter
Pose-Parameterized Motion Planning and CBF-QP Self-Collision Filtering for a Long-Reach Drilling Boom
Mehdi Heydari Shahna, Tuomo Kivelä, Jouni Mattila
Long-reach drilling booms must reach successive poses without self-collision. Moving from operator-supervised control toward autonomy requires collision-aware motion planning and e…
Actuator-Aware Inverse Kinematics with Joint-Limit Admissibility for Torque-Controlled Redundant Robots
Mohammad Dastranj, Mahdi Hejrati, Jouni Mattila
This paper proposes actuator-aware inverse kinematics for torque-controlled redundant robots under joint-limit constraints. In the considered architecture, the inverse-kinematic ou…
Modular Lie Algebraic PDE Control of Multibody Flexible Manipulators
Sadeq Yaqubi, Jouni Mattila
This paper presents a subsystem-based adaptive control framework for serial flexible manipulators with an arbitrary number of links, in which the elastic deformation PDE of each li…
Progress-Certified Reversible Simplex Supervision of Goal-Reaching Reinforcement Learning
Mehdi Heydari Shahna, Seyed Adel Alizadeh Kolagar, Jouni Mattila
Task completion is difficult to certify when state aggregation, model mismatch, and disturbances invalidate nominal RL transitions. We present a reversible Simplex framework combin…
Vision-based Goal-Reaching Control for Mobile Robots Using a Hierarchical Learning Framework
Mehdi Heydari Shahna, Pauli Mustalahti, Jouni Mattila
Reinforcement learning (RL) has strong potential in robotics, but exploration-based training complicates safe deployment on large-scale robots. For such applications, this paper pr…
NMPC-Augmented Visual Navigation and Safe Learning Control for Large-Scale Mobile Robots
Mehdi Heydari Shahna, Pauli Mustalahti, Jouni Mattila
A large-scale mobile robot (LSMR) is a high-order multibody system that often operates on loose, unconsolidated terrain, which reduces traction. This paper presents a comprehensive…