Bosch EV6 TVUB

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #45 on: March 20, 2020, 01:26:12 AM »

Quote from: nyet on March 20, 2020, 01:16:11 AM

latency also increases with pressure.

no, this is where everyone goes dead time is only governed by the current ex: 213g/min http://cloud.tapatalk.com/s/5e747d9de3d22/TVUB%200280158042.pdf

the vehicle voltage is in operation of 14V so this is often the point that is used in engine management. during the pressure increase it is the quantity injected which increases at the same time of opening of the injector and not the closing of the injector

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #46 on: March 20, 2020, 01:33:58 AM »

on the other hand, the idle time is specific to each injector which obliges either to recover it in the file of the vehicle from which these come or to make a request to the manufacturer who manufactures them

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lepatron972

nyet

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	Re: Bosch EV6 TVUB « Reply #47 on: March 20, 2020, 01:35:57 AM »

Quote from: lepatron972 on March 20, 2020, 01:26:12 AM

no, this is where everyone goes dead time is only governed by the current

That is absolutely false. Pressure affects dead time as well, just not as much as voltage

See OFFCOMP


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lepatron972

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	Re: Bosch EV6 TVUB « Reply #48 on: March 20, 2020, 01:39:12 AM »

Contact manufacturer

I’m not talking about a dynamic injector, but rather a static injector like those that operate in static flow and non-continuously regulated flow. a lot of people get lost. in indirect injection with serial injector the dead time does not vary

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #49 on: March 20, 2020, 01:42:56 AM »

En dynamics it’s ok not statick

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #50 on: March 20, 2020, 03:34:35 AM »

Quote from: lepatron972 on March 20, 2020, 01:39:12 AM

in indirect injection with serial injector the dead time does not vary

Interesting. Thanks for the information, I didn't know that


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BOLT

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	Re: Bosch EV6 TVUB « Reply #51 on: March 20, 2020, 06:22:27 AM »

Krkte calculated by the formula, it turned out
1781/4=445.25cm3( 0.44525 ) (0.4455 when calculating, can I apply 0.25cm3 to the repair size of the cylinder? )
1.293*0.44525= 0.5760315
100*14.7*0.00001667*1.05*269=6.921409005
0.5760315/6.921409005= 0.083224

come out krkte = 0.083224 which corresponds of TT225 (0.083187)

when calculating, can I apply 0.25 to the repair size of the cylinder?

that's just with the calculation TVUB I do not quite understand

4bar(58.0151)

(58.0151*(1781/4 =0.4455)/269)/? =

1,08 = 2 √ 3,5 / 3 ?
I am stupid)+Google Translate


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lepatron972

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	Re: Bosch EV6 TVUB « Reply #52 on: March 20, 2020, 06:37:55 AM »

Quote from: BOLT on March 20, 2020, 06:22:27 AM

There is no calculation for tuvb these are values provided by the injector manufacturer or the person who would have reconditioned them.

Vhe dead tile is valid for the injector reference and is not applicable to another injector other reference.

If your cylinder block is re-bored give me the exate cylinder and I will calculate the krkte for you.
Because it varies depending on the pressure of the fuel and injection system at the same time.

50.2624 is invariable in the calculation formula, it is multiplied by the unit displacement and divided by the flow rate in N-heptane of the chosen injector.
Then the krkte is divided by 2 √ (4 bars / 3 bars) = 1.154700538379252.
Which gives the new krkte for operation at 4 bar injectors

(Для tuvb нет расчетов, это значения, предоставленные производителем инжектора или человеком, который бы их восстановил.

Мертвая плитка действительна для эталона инжектора и не применима к другой эталонной форсунке.

Если ваш блок цилиндров перескучил, дайте мне цилиндр exate, и я вычислю для вас krkte.
Потому что он меняется в зависимости от давления топлива и системы впрыска одновременно.

50.2624 является неизменным в формуле расчета, он умножается на смещение единицы и делится на расход в N-гептане выбранного инжектора.
Затем krkte делится на 2 √ (4 бара / 3 бара) = 1.154700538379252.
Что дает новый krkte для работы на 4 барах инжекторов)
Google translate

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #53 on: March 20, 2020, 06:54:34 AM »

An example with a Citroen V6 PRV for an e85 conversion. The KRKTE is 0.1725 ms in the original map.

It would therefore be 0.1984 ms with 15% more.

The original value may be a little high.
If we do the calculation, we find KRKTE = 0.16679 ms
(50.2624 x (2.946 dm3 / 6) / 137 g / min) / 1.08 (3.5 bar)
Krkte = 0.1801 ms/% at 3.0bars

[ 3.5bars / 3bars = 1,166666666666667
2 √ 1,166666666666667 = 1,080123449734643 ]

(50.2624 * 0.491 / 137) / 1.08 if the fuel circuit operates under 3.5 bars
Krkte = 0.16679ms/% to 3.5bars

I think the injunctions are undersized, hence the increase in krkte.
On the next generation they went to 150g

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #54 on: March 20, 2020, 07:02:08 AM »

The whole area surrounded by red is = 50.2624

I had the same misunderstanding at the start!

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #55 on: March 20, 2020, 07:31:06 AM »

Quote from: nyet on March 20, 2020, 01:35:57 AM

That is absolutely false. Pressure affects dead time as well, just not as much as voltage

See OFFCOMP

nyet,

in the table offset voltage battery does not change, in the other table it is indicated the factor of multiplication of the flow according to the pressure applied to the circuit.
The offset battery voltage does not change in static only with dynamic injectors.

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #56 on: March 20, 2020, 07:35:02 AM »

http://cloud.tapatalk.com/s/5e74d44765ad9/injecteur-electromagnetique_caracterisation.pdf

Sorry this is a document on injectors in french i don't really know how to translate.
Batcor is the dead time or tuvb we are talking about

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« Last Edit: March 20, 2020, 07:37:34 AM by lepatron972 »	Logged

lepatron972

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	Re: Bosch EV6 TVUB « Reply #57 on: March 20, 2020, 09:11:23 AM »

Quote from: lepatron972 on March 20, 2020, 07:31:06 AM

in the table offset voltage battery does not change

The correction is in ms, not V, and experimentally, it matches my own results when using EV14 injectors in ME7.1


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lepatron972

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	Re: Bosch EV6 TVUB « Reply #58 on: March 20, 2020, 09:16:37 AM »

Quote from: nyet on March 20, 2020, 09:11:23 AM

The correction is in ms, not V, and experimentally, it matches my own results when using EV14 injectors in ME7.1

look ms are related to the voltage not to the pressure for the injectors which works in static. take a good look at the tables you have one for tuvb and the others are the flow multiplier factor depending on the operating pressure.
VBAT and Voltage offset on FNPW_OFFSET

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lepatron972

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	Re: Bosch EV6 TVUB « Reply #59 on: March 20, 2020, 09:22:15 AM »

Injector voltage offset as a function of battery voltage it's written at the bottom of the page

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lepatron972

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