The dual control law

motivating problem in the ISO satellite

- smooth, but time-optimal PD law transition from 180° full sky slewing manoeuver to arcminute pointing.

names of related controllers

Below are some names for related control problems or problem fields, and controllers intended to ( partly )
solve such problems :

- minimum time control.

- bang-bang control.

- saturating control.

- proximal control.

- non-linear control.

- gain scheduling.

the dual law as an optimal haptic end stop

- just-in-time software endstops.

  ( used in admittance controlled haptics ).

dual control law as flown in the ISO satellite

Below is a snippet of the official spec for the on-board software of the ISO satellite.

This software was used successfully on the satellite.

Dual control law ISO satellite