hello checchi!!the map to which I am referring is a edc16c8 of an alfa 147 140cv!!conil driver ecm I find these maps the first and limiters smoke; hence' threshold luminaire top and the other limiter smoke; hence' threshold the luminaire bottom I don't know how to interpret that... I'll give you a screen
Unfortunately, I still can't download attachments...
However, I think that for the threshold lambda lower limit I think it might just be the map smoke that I described to you before.
Ciaooo
Lambda upper limit I don't know what might be...
Last edited by leandro89; 22-02-2014 to 02:48
you checchi and a limiter smoke but the problem is that I don't know how to interpret it and one other,then I'll give you an example on the map lim fumusita' (top) I 2500 rpm 1050 mg/hub that should be the quantity of sucked air and the remaining z-axis'm 1080 lambda,the other map (below) is identical!!!now according to the rpm and the intake air change what?????????those 1080, what is it??? ratio lambda equal to 1 of 1????this applies to gasoline, not diesel!!!!!!!!!!!!Originally Written by checchitotiralaleva
Hello,
1080 definitely not ? even the order of magnitude of a lambda. At least 3 orders of magnitude... 1.08 could be a sensible value. Just because? a diesel always works the lambda-very lean (high), 1.08 may be a lower limit.
Unfortunately I have no familiarity? with the ECM, we only work with programs ETAS as the Inca, in which you just use variable names of the original BOSCH. For me the map smoke = SmkLim_rLamSmkEOM0_MAP, and are sure not to make mistakes... I don't know how the ECM-face associations between its conventional names and the variables contained in each software...
I can give an example of what is meant normally for the map smoke:
The ones that I have ever seen I are expressed in x -> rpm, y -> mg/hub of air, z -> lower limit Lambda (Lambda = alpha/alpha flow down. then: Flow rate air flow rate/diesel/14.5).
As I said, the map smoke ? the map is made to intervene in the transitional limit l?introduction of diesel ? limit opacity? at the discharge (emission limits on particulate matter).
We put the case that the engine is spinning at 1000rpm-120Nm, and instantly the driver gives a kick to?throttle (100%) to accelerate the motor against a constant load of 120Nm.
The engine will have? deliver a higher torque of 120Nm to be able to accelerate.
At the end of the transient, the engine will be running? in the limit curve of the introduction of diesel to 120Nm, the speed? maximum rotation such that ? can still develop 120Nm.
All?the beginning of the transient, the engine is turning at 1000rpm-50Nm using 900mg/hub d?air and 20mg/hu of diesel fuel (lambda current = 2.9)
In the map smoke ? been calibrated a lambda limit to the point 1000rpm-900mg/hub air of 1.05 (quantity? limit diesel fuel from the map smoke -> about 59 mg/hub-diesel ? diesel lim=air/lambda lim. / 14,5).
In the moment, instantly you will get to 100% pedal, the diesel is porter? immediately 59mg/hub while l?air start? only after to grow (when will arrive? the boost?).
In every moment of the transient, the ecu knows the rpm, he knows the?the suction air, know the lambda minimum calibrated, and then recalculate the amount? limit diesel point to point.
At the end of the transient, the boost will be? the load, the motor will be running? at x rpm ? 120Nm (35mg/hub diesel ? 1150mg/hub of air), the lambda limit of the end point may be 1.35 (quantity? limit diesel fuel from the map smoke -> about 58 mg/hub diesel).
The calibration of the lambda limit must be made by finding the right balance between opacity? maximum allowable speed? of the transient request.
The calibration of the lambda limit must be made by finding the right balance between opacity? maximum allowable speed? of the transient request.
So much more? the lambda limit ? the lower, the more it will be? the quantity? diesel fuel that will be? can inject (TRANSITIONAL! ? In steady state there is always the curve introduction limit) but ahim? also, the greater the sar? the sfumazzata?
And, of course, much more? fast sar? the transitional.
The improvement of the speed? in the maneuver of course, do not ? linear with the reduction of the lambda limit, also an excess of diesel pu? worsen the success of the maneuver.. Even just from the point of view of performance it is therefore necessary to optimize the value of lambda limit, not simply sblindare the map... If I put 0 as lambda minimum and I have a large turbine (slow to give me a boost, and then the air) affogher? the engine!
Last edited by leandro89; 25-02-2014 to 18:52
Sorry guys if I open the post...does Anyone know how many limiters IQ there are in total should be 3?? or am I wrong?? Thanks to all
Hello I have the same car and I am studying myself on this ecu, to prepare a map that makes sense. 0e9168 - 0e920a and 0e9470 are the addresses of the beginning of the map that I have read around. The first has to the axis, rpm and temp the 2 rpm, and a value in%, but I don't know what.... it is evident from the values that are limiters iq and the third I still don't understand. C'? also to understand what curves to raise to 8000 (if you 80mm3) if all or only the last. Let's understand something togetherSorry guys if I open the post...does Anyone know how many limiters IQ there are in total should be 3?? or am I wrong?? Thanks to all
Hello, the address to me, I do not equate the cio? the first two are close-to-limiters IQ...but on the third no, it takes me to the lambda top...but ke program uses the ecm? I have the first two you have to raise the part only the upper part and on the whole the limiter
As written above, the same car that you have 147mj140cv ?3 the addresses of the first two should be the exact ones shown are the beginning of the first curve of the maps. Just before you have the two curves of the bp. The 0e9470 as said not I realized it, not even me. Here I have posted the screen of the first 2 listed.Hello, the address to me, I do not equate the cio? the first two are close-to-limiters IQ...but on the third no, it takes me to the lambda top...but ke program uses the ecm? I have the first two you have to raise the part only the upper part and on the whole the limiter
But I have yet to be confirmed if they are modified in the right way
http://www.professionalchiptuning.ne...iamola!/page36
there should be a third if I'm not mistaken...
I saw that discussion ? a bit dated, but since I just joined and I am trying to learn anything I of this unit, I believe that the third limiter that you are looking for is 0EBF1A and should be a limiter on the basis of the temperature of the diesel fuel. Get information with pliers and why? I am very novice to? maybe some good soul can? confirm cos? I learn well I some what.
Write permission
Quote