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IROS
2007
IEEE
126views Robotics» more  IROS 2007»
14 years 5 months ago
Passive and accurate torque control of series elastic actuators
— The principle of Series Elastic Actuation offers considerable advantages for haptic displays compared to stiff actuators. The interaction force between motor and load is direct...
Heike Vallery, Ralf Ekkelenkamp, Herman van der Ko...
ICRA
2000
IEEE
83views Robotics» more  ICRA 2000»
14 years 3 months ago
Force Controllable Hydro-Elastic Actuator
— We present a hydro-elastic actuator that has a linear spring intentionally placed in series between the hydraulic piston and actuator output. The spring strain is measured to g...
David W. Robinson, Gill A. Pratt
SIMPAR
2010
150views Robotics» more  SIMPAR 2010»
13 years 9 months ago
Compliant Robot Actuation by Feedforward Controlled Emulated Spring Stiffness
Abstract. Existing legged robots lack energy-efficiency, performance and adaptivity when confronted with situations that animals cope with on a routine basis. Bridging the gap bet...
Katayon Radkhah, Stefan Kurowski, Thomas Lens, Osk...
ISER
1995
Springer
131views Robotics» more  ISER 1995»
14 years 2 months ago
Stiffness Isn't Everything
Most robot designers make the mechanical interface between an actuator and its load as stiff as possible[9][10]. This makes sense in traditional position-controlled systems, becau...
Gill A. Pratt, Matthew M. Williamson, Peter Dilwor...