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According to me the lambda corrects for a lot, the problem ? to understand how, I at the time that changes in the dark more? deep.
A Diesel cycle engine ? unthinkable that it can be run at a stoichiometric ratio why? fumerebbe like a train to the coal, must always work in excess of air to the minimum air/fuel ratio pu? to get even 100 to 1, then the ultra skinny.
As I have already? expressed in other post that I opened to ask for enlightenment on the interpretation of the maps the lambda, I do not think that the calculation is based on a stoichiometric ratio, let's call it “classic” of a gasoline engine cio? 14.7 to 1 why? c’? something that I did not go back, that is, in some points of the map lambda (I I always refer to the EDC16c8) read values of 0,97 cio? even lower than 1, then in a rich fuel mixture that if gi? a Diesel goes bad in 1 let alone to 0.97, so I hypothesized that there may be at the base is the classic 14,7 but, for example, the value obtained is gi? calculated in mm3 and not in mg.
I try to explain better with an example, if 1250 rpm and with a deal? of air of 660 mg I 0,99 value (14,7*0.99=14,55), I think that the deal? maximum injectable is not equal to 660/(14,7*0.99)=45,35 mg of 54 mm3 of diesel oil, i.e. an AFR of 14,55 but for example is already? 45,35 calculated in mm3 then the weight would be only 38,1 mg, and then the AFR would be equal to 660/38,1=17,33 gi? pi? reasonable for a Diesel.
Or are they completely out of the way, and the “magic number” to be applied to the formula may well be another (for example, 18 (many consider it to be the limit beyond which they will not go to avoid smoking), and then always referring to the example of the first if he was 18 I would have 660/(18*0,99)=37,04 mg that are 44mm3.
Of course, mine are all assumptions we would like someone who has done some tests with diagnostic tools to be able to see in the circumstance the quantity? actually injected.
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Hi, the afr set to edc16c8 refers to the stoichiometric typical of a diesel engine, which is 14.5/1 (1000 points on the map lambda).
The AFR minimum for a car powered diesel pu? also get up to 12/1, a value that guarantees the maximum performance. That said, the logic of the edc16c8 "allows" the afr from switing mentioned only for a short period of time (immediately after the request of the pi? power on the part of the driver), when immediately after the turbo sees? to go in pressure and the operation will return? of new excess air.
I hope I was clear
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