Calc.PID question

[Elowe65]

Maybe I had this questions posted in the wrong section so here it goes again.

Is it possible to get a raw pulse count (or signal) off the factory VSS sensor (i.e. how many teeth it has picked up since a stop)??

Working on a function to arrive at feet traveled, based off of the factory VSS sensor (tire circ. and gear incl.).

I currently have a calc.pid now that gives me driveshaft rpm based from the vss. With this, I should be able to get a distance traveled but am having problems. If could get a raw value or count on the sensor, it would help out a ton.

Any help would be appreciated.

Eric
03 Duramax

[bballer182]

How did you make a custom pid? i'm trying to do something simialar to that but i'm trying to figure out how to do a instant fuel econ. and a custom one to get actual boost which would be turbo boost minus baro. any suggestions?

[JezzaB]

How did you make a custom pid? i'm trying to do something simialar to that but i'm trying to figure out how to do a instant fuel econ. and a custom one to get actual boost which would be turbo boost minus baro. any suggestions?

Did the boost one a while ago (my first calc pid actually ;))

Edit the calc_pids.txt in the My Documents\V7.5\User Configuration\
If its not there add it.


Boost calculator



# ================================================== ============================
# Units
# -------------------
# See sae_generic.txt for more information on the *UNITS section

*UNITS

#Code System Abbr Description
#-------- ---------- -------- -------------------------------------------------------------

*CLC-00-000
psi 0.0 10.0 .0 "({SAE.MAP}-{GM.BARO})*0.145"

# ================================================== ============================
*PRN - Parameter Reference Numbers
# --------------------------------
# See sae_generic.txt for more information on the *PRN section
#
#Code PRN SLOT Units System Description
#------------------------- ---- ------------ ---------------- ----------------

CALC.BOOST F600 CLC-00-000 "psi" Air "Boost pressure"

#------------------------------------------


Does like you said. KPA - BARO and then convert to PSI

Jez

[bballer182]

Thanx, for the help. I've gone on to make many more helpful calc.pid's