What does dead band mean?
A range of small commands or small errors that produce no action at all, for example motor commands under fifteen percent, which do not move the robot.
In a lesson
The vibration motors do nothing below about 15. With 3 cm to go, the proportional controller asks for 12 over and over, and the robot just sits there. Real actuators all have a dead band like this, and the fix is to never ask for less than the minimum:
Learn it
- Taught in 3.4 Controlling speed Control, Robot club
Used in
- 3.5 Two loops at once
- U1.2 A command is a request
- U1.6 Measuring your robot
- U1.7 Project: write the data sheet
- U2.4 Forward kinematics
- U2.6 Go to a point
- U4.7 Project: hold the gap
- U5.2 Proportional control
- U5.3 The derivative term
- U5.6 Saturation and windup
and 10 more lessons.
Do the lesson in the simulator