Hybrid modes (battery hold vs charge battery)

[zenyagami]

Hello everyone, I'm curious about how this modes works, hybrid mode it should use battery and petrol in a smart way, but for example if my battery is empty, and i use hold mode, the battery should be charged right and not be used if i understand correctly. But i think is not like that.
And there is a option to charge battery but I'm curious, this mode also use petrol to help charge the battery? Or don't use the petrol at all, only the regenerative brakes?
If this is true I'm curious why is not doing this in battery hold. I tried to search online but I'm not sure if charge battery also increase petrol consumption.
Sorry for a noob question.
Thanks a lot

 

[AdamInKent]

Hello everyone, I'm curious about how this modes works, hybrid mode it should use battery and petrol in a smart way, but for example if my battery is empty, and i use hold mode, the battery should be charged right and not be used if i understand correctly. But i think is not like that.
And there is a option to charge battery but I'm curious, this mode also use petrol to help charge the battery? Or don't use the petrol at all, only the regenerative brakes?
If this is true I'm curious why is not doing this in battery hold. I tried to search online but I'm not sure if charge battery also increase petrol consumption.
Sorry for a noob question.
Thanks a lot

Assuming the Audi charge modes are typical for a PHEV:

Charge Hold mode is intended to hold the battery level about where it already is. It essentially makes the car behave like a normal hybrid: using a smaller amount of the total battery capacity to store regen and boost the engine.

A typical use case for this mode is that your destination is a town or city in which you want to use pure electric mode; so you can tell the car not to use up the battery until you get there.

The battery charge mode bleeds power from the engine to recharge the battery. (The car will also continue to regen and to use the battery to boost the engine when it needs it, as per a normal hybrid.) Note that this increases your fuel consumption (the energy from the engine doesn’t come for free) and is less efficient than charging the battery by plugging the car in.

I’m happy to be corrected by 45 TFSi owners if I have any of this wrong.

 

[zenyagami]

Thanks a lot, that's what i though that the charge mode probably increase the fuel consumption, but i can't find how much ,
Thanks a lot for the clarification