Ivar Thorson

Italian Institute of Technology, Nagoya University

Papers

Total Citations

175

H-Index

About

Ivar Thorson is a leading figure in the field of compliant robotics, specializing in the design of novel actuators for energy-efficient and highly dynamic legged locomotion. His core research focuses on variable stiffness and series elastic actuators, which are critical for enabling robots to walk, run, and jump with greater agility and lower energy consumption. Thorson’s most significant contribution is the development of the MACCEPA 2.0, a compliant actuator that powers the hopping robot Chobino1D. This work, which has garnered 115 citations, demonstrates how carefully tuned compliance can dramatically improve energetic efficiency in dynamic gaits. He further advanced the field with the HypoSEA, a nonlinear series elastic actuator introduced in a highly cited 2011 paper (45 citations). This actuator employs a novel hypocycloid mechanism to achieve a 120 Nm torque capacity, optimized specifically for explosive movements like running and jumping. Earlier foundational work (2007) established the design principles for variable stiffness actuators in robots capable of both walking and running, laying the groundwork for his later achievements.