NefMoto

Noob Zone => Noob Questions => Topic started by: patrickmotors on January 11, 2018, 05:20:52 AM



Title: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 11, 2018, 05:20:52 AM
hello to all I write from Italy I'm trying to understand my ecu bosch me 7.4.5 citroen c2 vts NA I did a draft you can tell me if I'm on the right track? I modified kfmiop kfmirl kfped and kfzw


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 12, 2018, 08:21:47 AM
I created new files and a winols mappack
from what I understand the torque required by kfped must be less than the maximum kfmiop torque right?
you can help me and check if I'm on the right track


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 12, 2018, 11:01:56 AM
KFPED is torque request from engine on a scale 0%-100% :)


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 12, 2018, 11:24:38 AM
from what I understand the torque required by kfped must be less than the maximum kfmiop torque right?

No. You should leave kfped stock unless you have a good reason.



Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 12, 2018, 01:21:20 PM
So I leave stock kfped? which of the last two maps is right for you?


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 12, 2018, 01:23:19 PM
can you help me to understand better to avoid making mistakes?


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 12, 2018, 01:33:23 PM
It is all in the FR and the s4 tuning wiki page.

In any case, it is pretty pointless tuning the small displacement NA motors.


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 12, 2018, 01:39:28 PM
do you think it makes no sense to touch the kfmiop map? on an engine na


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 12, 2018, 02:41:38 PM
I would like to understand one thing, the values ​​that there are in kfped must be higher or lower than those in kfmiop? z axis
because if so it makes sense that he did bosch, if it were not so I have virtually intervention of torque 1. and over 60% of the pedal in kfped is always a cut in torque since my aces in kfmirl reaches max 85
give me a hand to understand this I'm going crazy


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 12, 2018, 03:13:47 PM
None of this matters on a NA car if you are trying to get more power.

To answer your question, nothing in KFPED is limited, and it is entirely unrelated to IOP with respect to torque monitoring.

You are confusing KFPED with KFMIRL


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 12, 2018, 03:53:51 PM
can you help me understand then? I do not understand the correlation between kfped kfmiop and kfmirl, I thought that the values ​​of kfped had to be lower than those of kfmiop


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 12, 2018, 03:59:03 PM
can you help me understand then? I do not understand the correlation between kfped kfmiop and kfmirl, I thought that the values ​​of kfped had to be lower than those of kfmiop

KFPED is torque request from engine on a scale 0%-100%

Axis is RPM & %PEDAL
Cell data is requested torque in % of the torque limit.

KFMIOP is optimal engine torque.
KFMIRL is relative cylinder filling.


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 12, 2018, 05:16:11 PM
perfect up to here I understand that correlation has kfped with kfmiop? kfped how should i modify it?


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 12, 2018, 07:43:21 PM
perfect up to here I understand that correlation has kfped with kfmiop? kfped how should i modify it?

Didn't we already tell you not to modify KFPED?


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 12, 2018, 07:43:46 PM
No. You should leave kfped stock unless you have a good reason.

Sigh.



Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 07:53:01 AM
ok I have not modified it but I would like to understand what function it has kfped in relation to kfmiop and kfmirl. I know that the kfmirl axis is the required pair that comes from kfped right? why then is only 85% instead in kfped I have a maximum 103%? I would like to understand something help me?


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 13, 2018, 09:44:07 AM
I feel like I'm having Deja-vu.

Let's try this again.

Explain exactly what you want to know.
And I'll try and explain it best I can.


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 10:24:27 AM
then I would like to understand how to modify kfped or kfmiop thanks for helping me


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 13, 2018, 01:27:24 PM
Why do you want to modify either? What problem are you trying to solve? Without knowing the answer, there is no way to give you any advice whatsoever.


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 13, 2018, 01:29:20 PM
then I would like to understand how to modify kfped or kfmiop thanks for helping me

What do you want to achieve by altering those maps?


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 02:23:30 PM
I just want to understand how they work and understand what they really do, because I can not understand the functioning and the correlation well


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 02:24:18 PM
I would also like to improve the gas response


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 13, 2018, 02:52:01 PM
I would also like to improve the gas response

Gas response is not in these maps.
But you can change the proportional behavior in the pedal movement to torque request.
And that is done in KFPED. and I explained that earlier.
KFMIOP & KFMIRL has nothing to do with thottle response.

And DBW throttle response is nearly instantaneous, you'll be surprised how fast they react when you see it.
Target throttle angle is found FUEDK module.


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 03:13:52 PM
ok perfect one thing I do not understand in the guide that ce on this site says that kfped must be less than kfmiop .. right or wrong? I'm trying to translate the guide created .. I'm Italian and my English is a bit bad


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 03:17:20 PM
sorry if I do not understand much .. at this point can you explain to me well these three maps kfmiop kfmirl and kfped? so as to be able to understand them to the best and what changes to make if I need them in the future on other cars with turbo


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 13, 2018, 03:33:16 PM
ok perfect one thing I do not understand in the guide that ce on this site says that kfped must be less than kfmiop .. right or wrong? I'm trying to translate the guide created .. I'm Italian and my English is a bit bad

Can you show me where this is mentioned?


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 04:17:00 PM
Requested torque (mifa/milsol) is based on the driver's pedal position (KFPED converts wped_w to mrfa, which is capped by mimax, to generate mifa/milsol).
So the goal is to keep mibas < miszul (actual torque < actual torque limit) and mrfa < mimax (requested torque < requested torque limit).

Some rough guidelines for tuning KFMIOP:

The load input to KFMIOP for mimax is rlmax_w which means mimax will always be calculated from the portions of the map with loads higher than the minimum rlmax_w from LDRXN. Note that the requested torque from KFPED (mrfa/mifa) will be limited by mimax, so any cells addressed by torque values in KFMIRL that are above the largest torque value in KFMIOP are unreachable. The stock KFMIOP map is at most around 80%, so increasing the last column of KFMIRL is not sufficient, unless you increase the last column of KFMIOP. Done properly, mimax should be safely high enough to never limit torque request, such that it is higher than mrfa from KFPED.


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 13, 2018, 04:34:27 PM
This explains the same as I explained earlier.


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 04:57:51 PM
I still do not understand,you can explain it with practical examples so that you can understand better


Title: Re: help kfmiop mirl ped e kfzw
Post by: KasperH on January 13, 2018, 05:18:34 PM
I still do not understand,you can explain it with practical examples so that you can understand better

I can't really explain it better than what you quoted and I explained earlier.

I know you don't want to hear it, but you need to read more so you understand the basics of Bosch engine management. Then it'll all make sense :)


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 13, 2018, 05:24:37 PM
I do not understand, will it remain a mystery to me?


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 13, 2018, 10:02:48 PM
I do not understand, will it remain a mystery to me?

Yes, be cause you aren't actually listening to a word we're saying. None of those files are relevant for NA motors anyway, when it comes to tuning. There is nothing you can do to make your car "faster" by changing any of the maps mentioned, period. It is about making the car behave smoothly and predictably under part throttle.


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 14, 2018, 06:39:04 AM
I understood this .. I think that my only limitation is in the axis of the map kfmirl that is 85% but even if it does not change anything I understand that for my engine with the intake manifold as standard and series butterfly more than that can not do right? so I decided to touch only the maps kfwz and lamfa .. those according to you are fine as they have been changed? the change is the same as those files that I posted previously


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 14, 2018, 12:34:33 PM
One more time: what are you trying to accomplish? 15+ posts and i have no idea still.


Title: Re: help kfmiop mirl ped e kfzw
Post by: patrickmotors on January 14, 2018, 04:56:10 PM
as already written above I'm just trying to understand the logic of these maps, whether it's a turbo car or NA this is the juice of the speech, I hope you understand me


Title: Re: help kfmiop mirl ped e kfzw
Post by: nyet on January 14, 2018, 08:01:03 PM
It is all in the FR

pedal position is mapped to req torque (1-100) via KFPED, which is mapped to req load via KFMIRL.

KFMIOP converts load (actual from MAF readings and max from LDRXN) back into (actual and max) torque when needed for torque monitoring.