Admittance

Psychoanalysis

Psychology

Robot

Inertia

Engineering

Artificial intelligence

Physics

Control engineering

Motion control

Impedance control

Passivity

Compensation (psychology)

Biology

Control system

Computer science

Agronomy

Controller (irrigation)

Control (management)

Electrical engineering

Classical mechanics

Electrical impedance

Control theory (sociology)

The International Journal of Robotics Research

This paper presents an overview of admittance control as a method of physical interaction control between machines and humans. We present an admittance controller framework and elaborate control scheme that can be used for controller design and development. Within this framework, we analyze the influence of feed-forward control, post-sensor inertia compensation, force signal filtering, additional phase lead on the motion reference, internal robot flexibility, which also relates to series elastic control, motion loop bandwidth, and the addition of virtual damping on the stability, passivity, and performance of minimal inertia rendering admittance control. We present seven design guidelines for achieving high-performance admittance controlled devices that can render low inertia, while aspiring coupled stability and proper disturbance rejection.

Admittance control for physical human–robot interaction