just tell me what calculus to do, im a math teacher haha

send me a PM on what needs to be calculated and ill figure it out

 

No, not fancy matrices. I think it's vectors and matrices with an added dimensions- orders of magnitude and direction. They used Reimann tensors in developing General Relativity. Way over my head.

For some Tensor info See here-> http://www.grc.nasa.gov/WWW/K-12/Num...2002211716.pdf


ohhh...I Googled MatLab and it looks like they use tensors in mult. situations.
That's a fancy module!!

 

I have an equation which will solve all yer problems

Holley + MSD = Done

 

heres one back at ya. MSD + random ignition problems = frustrating...


lol, i think the idea here is to understand how it works.. not just get the car running.

 

heres another one

what is <1 + <2


<3

 

I didn't say "fancy matrices".....I posed my statement as a question in an attempt to be polite when saying that the presence of tensors just means you will be using matrix operations. In other words, I'm not sure a complete understanding of the concept of a tensor is necessary to do the math, so long as one is familiar with matrix operations.

Also....vectors can be viewed as a special type of tensor. Direction?.....Vectors and tensors encompass concepts more general than physical space, and associating a "direction" with them is only a tool to help visualize or "concretize" the idea.

FYI, matrix/vector operations are the basis for the entire operation of the matlab software .......

 

Anyway, does anyone know of any sources of more info on the operation/math behind these pcm's?

 

God Bless Carbs..



to hell with the evil fuel injection.. its the devil

 

Looks like a good parametric equation.

 

i have some ideas and an initial approach for this ready. i do however need an engineering math person to lay out some tensor theory, and/or some matlab approach for it. anyone up for a powwow about this?

 

beast69camaro - sorry, I wasn't trying to be a smart aleck. No offense intended.
I need to remember that you guys can't "read" a person within a forums context.
I really would like to better understand this.
joel

 

Topless Texan says he'll pm you.
See thread->http://forum.efilive.com/showthread.php?t=5218

 

RedHardSupra, any additional information to update this thread ?

 

i think i just figured out how to get the temperature bias table. once we have that we should get a much better chance at getting the gmve right. the cool part is that this will apply to ls1/ls6, ls2, ls7 stuff as well, without a good temp model you cant the right ve/gmve/parameters for the E38/E67 stuff.

once bias table is optimized, we can move on to actually getting the ve/gmve stuff properly, not just adjusting with afr%error without temp/pressure adjustments.

the problem is right now it's a very interactive, manual process in excel. i'll have to figure out how to automate this stuff, i dont think most people could run through it right now.

 

Man I've been using MatLab just for MAF table conversions and other random stuff as far back as OBD1 LT1's...gotta love the engineering degree.

I'd offer my help if I wasn't on the opposite side of the country and too busy with work and school (masters) to be useful.

 

bingo, we use tensors in advanced mechanics of materials and quantum mechanics too. Been awhile though, this should be interesting

 

well if you know how to use them, why don't we talk? i got it done with slow and painful excel tricks, but i think this is solvable much more elegantly with tensors.

 

I wouldn't use excel, I would use Matlab. Let's not kid ourselves.

Besides, the complexity of the topic is well beyond most peoples comprehension on this forum. You'll spend a lifetime trying to explain it, let alone argue with people that don't know what they're talking about but they're right anyways

 

That would be me right now atleast. I'm majoring in mechanical engineering, but I'm only 2 years in. One day it'll make sense.

 

So after you get the temp bias, you have to solve a tensor equation for the unknowns matrix, is this the basic gist of it...?

Ah... it must be nice to have MatLab... (...I don't qualify as a student, and neither does my Mrs... yet...).