Clear Filters
Clear Filters

function not using all values

1 view (last 30 days)
Alexandru Bortea
Alexandru Bortea on 18 Apr 2017
Answered: Jan on 18 Apr 2017
I was creating this function for a launch control's ignition cut and when running it, the function avoid all the conditions where v appears. I am not very familiar to this kind of conditioning as I recently learnt it and it is the first time I am using it with two inputs and one output. Code and variables used can be seen below. Initially when I created the code I tried using if statements, but I soon realised when using that all values of the vectors have to be below the condition otherwise the statement jumps straight to the "else" part.
function injcut = injcut_fun (v,rpm)
global LCREV_MAX LCSPEED_MAX
injcut = rpm;
injcut (:) = 1; % 100% torque allowed
injcut (rpm > 11100) = 0; % 0% torque allowed
injcut (rpm > 10900) = 0.5; % 50% torque allowed
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX+300) = 0; % 0% torque allowed
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX+200) = 0.25; % 25% torque allowed
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX+100) = 0.5; % 50% torque allowed
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX) = 0.75; % 75% torque allowed

Accepted Answer

Jan
Jan on 18 Apr 2017
The order matters:
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX) = 0.75; % 75% torque allowed
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX+100) = 0.5; % 50% torque allowed
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX+200) = 0.25; % 25% torque allowed
injcut (v <= LCSPEED_MAX/3.6 & rpm > LCREV_MAX+300) = 0; % 0% torque allowed
In the opposite order, the value set by rpm > LCREV_MAX+300 is overwritten by rpm > LCREV_MAX.

More Answers (0)

Categories

Find more on Wind Power in Help Center and File Exchange

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!