Questions tagged [feedforward]

The control path from input to output with some set transfer function.

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Can badly tuned Feedforward still decrease following error

Let's say we're trying to control the speed of a motor to 20 revs/sec, and we know that our controller output for that speed is approximately 5. We currently have a Proportional controller to drive ...
7
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3answers
938 views

The term Feed-forward and its meaning?

I am trying to understand the technical meaning of the term 'feed-forward', when and where it can be used and where it cannot be used? I have seen this term in various different areas. For example: ...
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3answers
680 views

How can feedforward be used with PID for motion control

In a motion control system where a motor accelerates, coasts, and decelerates (setpoint is position, not velocity!), what would be the benefit of using feedforward with PID, instead of solely PID? ...
2
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2answers
223 views

What is the relationship between feedforward control and bandwidth?

This is a control theory question, but because there is no control theory stack exchange, I thought this was the closest appropriate location: I've been studying feedforward control system designs, ...
1
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2answers
133 views

Implementing Feedfoward from a Feedback Control System

In a standard feedback control system, you have a set point, a controller, a plant, and a sensor to enable feedback. The sensor measures the process variable (or in other words, the argument you are ...
4
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5answers
3k views

Could you explain how feedforward is used in walking?

I am reading about feedforward in control system. And in this lecture, slide 49, the author says that feedforward is common in human systems. Example, walking, playing basketball, driving a car. ...