[Twiz o'Meter] A matter of sign: minus or plus for battery/motor consumption?

With the last firmware update I added the sign to battery/motor consumption and recuperation.
In my point of view, minus sign means you are draining current from the battery, positive you are giving current to the battery.
At least two ToM owners had opposite thought: the battery provides energy for the motor most of the time (positive) and sometimes the engine returns (recuperates) energy back to the battery (negative). The Zoe, for example, shows negative values during recuperating.

So, I start a poll:
What sign do you prefer for consumption and recuperation?

Tell me your preference, giving your reason.

This is a sample picture of a Zoe:

hallo
genau darum hat man auf die vorzeichen verzichtet.
that's exactly why the signs have been omitted.
weil der eine das von der akku-seite sieht und der andere von der motor bzw. beschleunigungs-seite sieht.
because one sees it from the battery side and the other from the engine or acceleration side.

euer werner ad

Kann man nicht einfach einen Pfeil in Richtung Motor oder in Richtung Batterie machen?

Goldbacher schrieb: Kann man nicht einfach einen Pfeil in Richtung Motor oder in Richtung Batterie machen?

In what case? Recuperation?

In jedem Fall natürlich. Ich verstehe die Frage nicht. Wenn Strom verbraucht wird, den Pfeil von der Batterie in Richtung Motor, wenn rekuperiert wird, den Pfeil vom Motor zur Batterie. An den Pfeil kann man dann den Wert schreiben oder ähnlich. Man bräuchte dann kein Minuszeichen.

To me this is a matter how the icon/metric is named.
In case that the icon/metric is named "power consumption" I think the value should be signed positive while driving and negative while recuperation.
If you name it "charging power" the value should be positive while charging/recuperation and negative while driving.

To please everybodies wishes you could install both icons/metrics.

Snorre schrieb: To please everybodies wishes you could install both icons/metrics.

Yes, this is a good idea.
I insert it in the to-do list for the next update.

We just need to follow the rules. In this case "Kirchhoff law" applies.

First the idea behind: The corner point are "knots". Thus you get power from a source (charger) to the knot (first line), from this knot you go to the battery (2nd line) and a third line feeds the load. The sum must be zero. In consequence, the current from the source (charger) ist "+", if the battery get charged "-", and the load (always) "-".

Now you can play around.

Kirchhoff states: If power goes into a knot, it's positiv. If someone drains power, the sign is negativ.

In german well explained here: Kirchhoffsche Gesetze

New idea about handling power/battery consumption:
Let`s name the metric "energy management" or "energy consumption":
While driving ToM displays for example this icon

and a positive value either representing kW or A.

While charging or recuperation the icon is replaced by one of the following examples.



But the value stays positive.

I'm a bit confused