Erklärung MWB 4 bei PD-ASZ (Synchronisationswinkel)? | Posts 48+

Quote:

It's amazing how this works: more power with lower AGT?

What's so amazing about that? Earlier injection -> more time to expand, i.e. to lower exhaust temperatures, which, according to the equal-volume process (comparison process for internal combustion engine), means more power... This applies only for sensible advance of the injection timing, starting too early creates ugly holes or results in negative work

Quote:

Has anyone been able to find out if there is a Relationship between sync-winkel and consumption exists?

In EDC15 engines, depending on driving style, there can be some fuel savings when the engine is operated with standard software. A good "ECO" software will take care of the fuel injection timing anyway.

Hypothesis:
In EDC16 or EDC17, a corrector likely adjusts the injection start timing based on the synchronization angle. That is, here, you only change the injection flow. The MSG should compensate for the differing injection timing. (By varying the start time). The synchronization angle indicates the difference between the calculated injection timing (in °KW) and the actual injection timing. When the PDE is closed, a voltage/current is induced in the solenoid of the magnetic valve and is then conducted to the MSG.

I BELIEVE that in EDC15, the synchronization angle is only used for monitoring purposes.


Best regards, Blackfrosch

Hi,

Quote:

Blackfrosch: ....The synchronization angle indicates the difference between the calculated flow rate (in °KW) and the actual flow rate....

No.
The synchronization angle, expressed in °KW, indicates the position of the NW relative to the KW. This involves evaluating the signals from the NW sensor and the KW sensor.
hg
Herbert

OK, then I'm out
And does the EDC15 not compensate for this?

How do you want to compensate for the NW's belt-guided position relative to the KW? Hex hex?
The EDC controls the injection, but not the mechanics.
hg
Herbert

After more than 5 years, it should actually be everything that needs to be said about the topic (see previous post).
It's getting confusing. Therefore --> closed.