Impedance Control
A core concept in robot control theory proposed by Neville Hogan at MIT in 1985. It models a robot's end-effector as a spring-mass-damper system with adjustable stiffness, damping, and inertia, enabling the robot to dynamically switch between compliant and rigid behavior during interaction with the environment.
Core Facts
Timeline (last 90 days)
Impedance control is a control strategy that achieves compliant interaction by adjusting the virtual stiffness and damping of robot joints, allowing joints to deviate when subjected to external forces in order to absorb impacts.
Human hands naturally employ impedance control, adjusting position and stiffness simultaneously, yielding at the moment of impact rather than resisting rigidly.
Industrial-grade active compliance solutions typically require six-axis force/torque sensors (costing thousands to tens of thousands of yuan) or high-resolution encoders paired with impedance control algorithms.
Impedance control is suited to robots with controllable torque (such as direct-drive joint robots), while admittance control is suited to industrial robots that are position-controlled but highly rigid.
All Facts (4)
Impedance control is suited to robots with controllable torque (such as direct-drive joint robots), while admittance control is suited to industrial robots that are position-controlled but highly rigid.
65%UnverifiedImpedance control is a control strategy that achieves compliant interaction by adjusting the virtual stiffness and damping of robot joints, allowing joints to deviate when subjected to external forces in order to absorb impacts.
50%UnverifiedHuman hands naturally employ impedance control, adjusting position and stiffness simultaneously, yielding at the moment of impact rather than resisting rigidly.
50%UnverifiedIndustrial-grade active compliance solutions typically require six-axis force/torque sensors (costing thousands to tens of thousands of yuan) or high-resolution encoders paired with impedance control algorithms.
50%