Hi.

Do anyone have idea about these two values on the pictures attached? What does they mean? What happen if the Hysteresis voltage is set to 12.5 volt? Will it keep battery voltage on 12.5 always?

 

What happens if Generator voltage is set to 13 of 14 volt instead of 10.6V? Because generator is able to deliver 14volt. Can this make performance of generator better?

 

Edited 28 April, 20206 yr by dreamlearn

I am also thinking what does It mean. It could change a recuperation settings.

 

Just my idea:

Generator specified voltage variable: probably lowest voltage of alternator?

IDE00945-ENG118688-Hysteresis voltage-Voltage_elevation,12.1 V,2	 -looks like a voltage when power management starts to charge battery without brake or deceleration
IDE00945-ENG118687-Hysteresis voltage-Voltage_lowering,12.1 V,2	         -looks like  voltage when car display a low battery level on maxidot
IDE01211-Static current measuring mode,not activated ,1	
IDE01457-Energy management deactivation stage,Mode not active ,1	
IDE01459-Energy management heat output control status,Mode not active ,1

We know to deactivate a start stop set a start stop battery voltage from (I think) 7.6 to 12.1V, but battery is still on really low level which shorts a lifeage from a years to probaly 3years... 

Hysteresis usually means how far something can vary from a set point before a corrective action is taken, not a good description but think of a room thermostat set to 20°c, the room temp will probably drop to 18°c before the heating cuts in and then go up to 22°C before it cuts out, the average temperature will be 20°C but with swings of 2°c either side of the set point.

 

The hysteresis in that example would be +/- 2°C.

 

What it means in VCDS is anyones guess, any similarity between a variable and its name is purely coincidental 😀

 

'Indicator Celebration" being a good example!

Yes thanks for a comment.

If its as you say, It would be what we want, better settings of  power management. If normally 12.1V is an basic/normal/average voltage, we can set it to a 12.4V which is nominal voltage for the best battery lifeage.

 

A question is what is the differece between hysteresis elevetation and lowering. As a factory setup is ,,both the same'' It can be probably 12.4V both. But, you also said: Nobody knows... 😉

A small but important point - it's not a "VCDS voltage", VCDS merely reports what the firmware in the VAG/Skoda module setting is.