Pages: 1 2 [3] 4 5 ... 7
Author Topic: Bosch EV6 TVUB  (Read 22069 times)
q_dubz
Full Member
***

Karma: +3/-0
Offline Offline

Posts: 152



« Reply #30 on: April 16, 2019, 08:56:33 AM »

Solved a problem with the ECU identification, now engine starts with the corrected TVUB , the problem was in the checksum, while IronFelix did not see a problem , WinOLS proposed to correct checksum but after setting changes , and all was well .
Now I have entered the parameters TVUB  of the above post , and corrected KRKTE , but now fuel correction in vsds 32 group
It was to be (add 0.8% , mult 18.8% ) too much difference , I think that the above reported parameters are wrong or I have wrong a bit map .
what was the cause for the high LTFT here?
Logged
BOLT
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 28


« Reply #31 on: March 18, 2020, 02:33:41 AM »

Alternately, if they came in a car that you can get an ECU bin for, you can copy the TVUB values over (if the FPR is the same).

If the FPR is different, you will need to get the spec sheet from the manufacturer to know how to compensate.


Together with the nozzles and cards can the pressure regulator itself be carried over?
Google Translate
Logged
nyet
Administrator
Hero Member
*****

Karma: +477/-75
Offline Offline

Posts: 10776


WWW
« Reply #32 on: March 18, 2020, 09:26:50 AM »

Together with the nozzles and cards can the pressure regulator itself be carried over?

Yes.
Logged

ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
BOLT
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 28


« Reply #33 on: March 19, 2020, 01:44:31 AM »

Yes.
I ask for clarification
I have 1.8T APU
injector 0 280 155 825 Statistical flow at 3 bar, average n-Heptane, 176.7 g / min FPR standard 4bar
There is an injector 0 280 155 892 Static flow at 3 bar, average n-Heptane, 269 g / min from (1.8 T quattro [APX; BAM] 224 hp, S3 quattro [AMK; APY; AUL] 210 l. from)
there is set FPR at 3bar
For the correct operation of these injectors, is it enough for me to set the FPR to 3 bar, change the TVUB and KRKTE from APX, BAM, AMK, APY, AUL?
Logged
lepatron972
Full Member
***

Karma: +3/-12
Offline Offline

Posts: 92



« Reply #34 on: March 19, 2020, 02:04:01 AM »

I ask for clarification
I have 1.8T APU
injector 0 280 155 825 Statistical flow at 3 bar, average n-Heptane, 176.7 g / min FPR standard 4bar
There is an injector 0 280 155 892 Static flow at 3 bar, average n-Heptane, 269 g / min from (1.8 T quattro [APX; BAM] 224 hp, S3 quattro [AMK; APY; AUL] 210 l. from)
there is set FPR at 3bar
For the correct operation of these injectors, is it enough for me to set the FPR to 3 bar, change the TVUB and KRKTE from APX, BAM, AMK, APY, AUL?

if your fuel system is under 4bars you divide krkte found on APX BAM by 1.154700538379252 to have krkte for a circuit under 4 bars instead of 3bars


Envoyé de mon iPhone en utilisant Tapatalk Pro
Logged

lepatron972
BOLT
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 28


« Reply #35 on: March 19, 2020, 02:39:39 AM »

if your fuel system is under 4bars you divide krkte found on APX BAM by 1.154700538379252 to have krkte for a circuit under 4 bars instead of 3bars


Envoyé de mon iPhone en utilisant Tapatalk Pro

Thank you!
Logged
BOLT
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 28


« Reply #36 on: March 19, 2020, 04:44:27 AM »

if your fuel system is under 4bars you divide krkte found on APX BAM by 1.154700538379252 to have krkte for a circuit under 4 bars instead of 3bars


Envoyé de mon iPhone en utilisant Tapatalk Pro

My fuel system is 4bar
the injectors that I will be working on are 3 bar, the tube and the Krkte which I plan to transfer are designed for 3 bar.
« Last Edit: March 19, 2020, 05:00:38 AM by BOLT » Logged
lepatron972
Full Member
***

Karma: +3/-12
Offline Offline

Posts: 92



« Reply #37 on: March 19, 2020, 05:00:27 AM »

Моя топливная система 4бар
инжекторы которые буду ставить работают на 3 бар, TVUB и krkte которые планирую перенесть расчитаны под 3 бар.

Привет, все потоки выражаются под давлением 3 бар, когда система работает с более высоким давлением, для этого необходимо пересчитать расход.  Например, инъекция, которая составляет 100 г / мин при 3 барах, расход пропорционален квадратному корню из давления,
 так что если вы удвоите давление, вы получите квадратный корень потока 2.  Так что корень 4/3 при переходе от 3 до 4 баров

Google translate


Envoyé de mon iPhone en utilisant Tapatalk Pro
Logged

lepatron972
nyet
Administrator
Hero Member
*****

Karma: +477/-75
Offline Offline

Posts: 10776


WWW
« Reply #38 on: March 19, 2020, 06:35:43 PM »

Why not just use 4bar?
Logged

ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
BOLT
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 28


« Reply #39 on: March 19, 2020, 11:48:17 PM »

It would be nice to use 4 bar
since my system is standard 4 bar with return.
but the injectors that I plan to use with a 3 bar auto
Tvub and Krkte also with a car 3 bar
Logged
nyet
Administrator
Hero Member
*****

Karma: +477/-75
Offline Offline

Posts: 10776


WWW
« Reply #40 on: March 19, 2020, 11:50:20 PM »

It would be nice to use 4 bar
since my system is standard 4 bar with return.
but the injectors that I plan to use with a 3 bar auto
Tvub and Krkte also with a car 3 bar

So what?

Adjust TVUB and KRKTE. That's what they're for. Your post makes zero sense.
Logged

ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
lepatron972
Full Member
***

Karma: +3/-12
Offline Offline

Posts: 92



« Reply #41 on: March 20, 2020, 12:23:27 AM »

It would be nice to use 4 bar
since my system is standard 4 bar with return.
but the injectors that I plan to use with a 3 bar auto
Tvub and Krkte also with a car 3 bar
TUVB only work on 3bars. KRKTE is adjusted according to the operating pressure of the fuel system the formula



for a V6 psa which operates under 3.5 bar injectors of 3 bar in operation it gives this

( 50,2624 x  ( 2,946 / 6 ) / 213 ) / 1,08 = 0,107280639921875

1,08 = 2 √ 3,5 / 3
1,08 = 2 √ of 3.5 / 3

Envoyé de mon iPhone en utilisant Tapatalk Pro
Logged

lepatron972
nyet
Administrator
Hero Member
*****

Karma: +477/-75
Offline Offline

Posts: 10776


WWW
« Reply #42 on: March 20, 2020, 01:11:18 AM »

TUVB only work on 3bars.

TVUB usually has to be only slightly altered for pressure. Most injector datasheets come with pressure compensation parameters for latency.

Failing that, for 3->4 bar conversion, usually you tune KRKTE to 0% stft/lambda correction during part throttle, then adjust TVUB until idle part throttle is 0.
« Last Edit: March 20, 2020, 01:15:18 AM by nyet » Logged

ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
lepatron972
Full Member
***

Karma: +3/-12
Offline Offline

Posts: 92



« Reply #43 on: March 20, 2020, 01:15:21 AM »

TVUB usually has to be only slightly altered for pressure. Most injector datasheets come with pressure compensation parameters for latency.

For 3->4 bar conversion, usually you tune KRKTE to 0% stft/lambda correction during part throttle, then adjust TVUB until idle part throttle is 0.


tuvb is the dead time when the injector closes and it is linked to the current which circulates in the injector this is why its axis is in voltage shorter closing time when there is 16v in power supply


Envoyé de mon iPhone en utilisant Tapatalk Pro
Logged

lepatron972
nyet
Administrator
Hero Member
*****

Karma: +477/-75
Offline Offline

Posts: 10776


WWW
« Reply #44 on: March 20, 2020, 01:16:11 AM »

tuvb is the dead time when the injector closes and it is linked to the current which circulates in the injector this is why its axis is in voltage shorter closing time when there is 16v in power supply

latency also increases with pressure.
Logged

ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
Pages: 1 2 [3] 4 5 ... 7
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.023 seconds with 17 queries. (Pretty URLs adds 0s, 0q)