Looking for Good definitions!!?

Question

I'm looking for some good definitions for the following terms:

1. integral term initializer
2. integral gain factor
3. proportional gain factor
4. RunFuel BPW

Working on engine calibration.

don't need sarcastic answers like the encyclopedia. If you know what the terms mean please let me know

Answer 1

1. This term is part of a digital 'PID' algorithm; it is the 'seed' value to initiate the calculations. If you raise or lower this value, the PID starts out with an aggressive or relaxed response.

2. The integral gain factor tells you by how much to multiply the error each cycle. Its purpose is to get the algorithm to 'start catching up' if the error from the setpoint remains very long.

3. The proportional gain factor tells the algorithm how to respond to a setpoint error. It is tuned so that if the setpoint is lowered, the algorithm output will also lower in proper proportion to the lower setpoint value, and vice versa if the setpoint is raised.

4. RunFuel BPW - don't know what this is - is a term specific to your device and not a industry-wide term. May not have anything to do with the algorithm (can't tell; maybe someone else knows).

You may really have a 'PI' controller, not a 'PID' controller. A PI controller is easier to tune, but is not as smooth operating.

This is a subject in control systems theory - college level and can be pretty challenging if you try to treat it mathematically.

A PI controller can be tuned manually (without math) by just trying different coefficients, but you really should read up on control systems first, 'PI' controllers in specific, before trying to tune them.

Tune the P value first, then when you're happy, tune the I value. The P value tells you how to respond in proportion to very gradual changes; the I value gets the controller to respond more quickly if the changes are not gradual.

Answer 2

It seems you need to first calibrate your study method! Anyway, maybe consult a good encyclopedia or wikipedia (refer below under 'Research your answer').

Answer 3

www.dictionary.com
www.google.com
www.thesaurus.com

just search it.