neue Batterie aber mieser Start | Posts 16+

"Am I understanding correctly that you insert the ignition key into the starter position and, upon releasing it, the starter continues to run until the engine starts? Does it have that function?"
Then there should be a certain amount of time before the starter motor engages, to prevent it from being damaged. I think a maximum of 10 seconds would be reasonable.

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Am I understanding correctly that you insert the ignition key into the starter position and, when you release it, it continues to crank until the engine starts?

"No, pressing the FOP button is just like turning the key."
You can even hear the moment of release in the video.

By the way:
The video and the log start at THE SAME point!

dieselmartin wrote:

Yep Thanks to the EURO4 standard, they are individually monitored. m;

Doesn't that actually mean that the brightness is not necessarily sufficient yet?
Is only the function being monitored, or also the "heating power"?
Best regards,

I don't see anything that changes at the end of the 'organizing.'

To me, it sounds like in the clip, it initially starts slowly for the first 1-2 seconds, then speeds up, and finally kicks in.

To be honest, I wouldn't really worry about that. I don't find it unusual, as long as it starts up on all cylinders at the same time.

Would that fulfill the parameters of the minimum rotational speed?


Food for thought:

For example, does anything change with a longer waiting time (glow duration), starting assistance via an auxiliary battery or jump start, or when the plug is disconnected? Does it affect the water temperature, etc.


But Martin's blog post in the initial thread says something different:
As the organ's speed increases, the EM (electromagnetic starter) jumps to its maximum value. Then, with the full starting amount of fuel, it continues to 'urge' itself a bit further, and only then does it actually start.
If a few organ rotations before starting were explicitly desired, what would be more appropriate than not injecting anything during that time? icon_rolleyes.gif:roll:

The start authorization has more parameters than just the injection itself. And it includes more than just a single map or evaluation variable, etc. This is no longer a simple MSA/EDC15 system. You have the possibilities available to you, so simply consult the relevant documentation (D/a2, etc.).


Sure, here is the translation of the text from German to English:

'Edit'

If I take a rough look, there are approximately 170-180 parameters/fields and things that could influence the startup process. Not all of them are active, some are irrelevant to this topic, but the number itself says something, I think }.

mullemaus wrote:

The start authorization has more parameters than just the injection itself. And it includes more than just a single map or evaluation variable, etc. This is no longer a simple MSA/EDC15 system. You have the possibilities to access this information, so simply consult the relevant documentation (D/a2, etc.).

I certainly don't have all of the (presumably) existing information.

Therefore, I am looking for the answers at a relatively simple level of log data, and my new question regarding your response is:
How can one prevent the engine from starting for a specific number of revolutions, while simultaneously injecting the full amount of fuel that would eventually cause the engine to start?
And why are the cylinders and exhaust system already being flooded with diesel fuel when the engine isn't even supposed to start yet?

Haha.

Fresh oil, new filter, a comfortably warm -6 degrees Celsius... and the tractor starts right up like a young god .

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

"@Ulf, Mullemaus will probably tell us."

My assessment is as follows:

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How can one prevent the engine from starting for a specific number of revolutions, while/although the full amount of fuel required for starting (which would eventually cause the engine to start) is being injected?

It's actually nonsense. Once fuel is injected, the engine should start. The reason it doesn't always happen immediately is due to the "auto-ignition temperature" not being reached yet, and fuel condensation on the components of the combustion chamber.
or by a relatively meaningless closed throttle valve.

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And why are the cylinders and exhaust system already being flooded with diesel, even though the engine is not supposed to start yet?

I think it's because the combustion chamber temperatures are not yet being measured, so we don't know when the auto-ignition temperature is reached. And ideally, it should start up as quickly as possible, before the battery runs out of power.

In the future, sensors will be integrated into the cylinder head cover (ZH), which will then provide additional parameters to the engine control unit (ECU).

The required starting speed when starting the engine is essentially just a mnemonic device for the (currently) missing parameters, used to pre-warm the combustion chambers.

Food for thought.

At Audi, there is a Technical Service Bulletin (TPI) number 2012460/4. This states that when the light switch is in position NULL, the car may take 2-5 seconds to start, whether it's cold or warm. In positions 1 or 2, it starts normally.


Just to illustrate WHAT all can lead to unusual or delayed startup behavior.


PS: In such cases, the main headlight switch needs to be replaced .

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P.S.: In such cases, the main headlight switch needs to be replaced icon_wink.gif

Therefore, this would not be a desired state, but rather a defect, with a 99% certainty that no fuel is being injected.
Regardless of whether it helps Martin or not, the more help the better.

I think it's fuel injected, otherwise it wouldn't start within 2-5 seconds.

It was just an example to show that even components that have nothing to do with the engine can cause such phenomena.