[Huub3]

Dear Omonoid,

I am not completely sure (I am from the AC domain, so DC is not my field really), but I think the charger is not connected properly.

The way you have drawn the picture, the charging current is going to go through the controller, and needing the main contactor to be closed during charging.

I would think (and with my AC controller I know that I need to do this), that the charging circuit is in parallel with the drive circuit.

Please feel free to correct me, as I make this remark from the theoretical point of view, being far away from doing this installation myself.

Regards,

Huub

 

[Huub3]

Omonoid,

I am afraid we (Dimitri and I) mean something else:
The charger and the drive circuit are both in parallel w.r.t. the battery.

With other words:
The charger is connected (via fuses) to the - and + poles of the battery
The controller is connected (via contactor + precharge etc.) to the - and + poles of the battery

If you use a shunt to measure currents and do tracking of charging state, then one one connection of both the charger and the controller is connected to this shunt instead of a battery pole, and the other side of the shunt connected to this pole. This way you can measure both charging and de-charging currents and energy flows.

Is this clearer now?

Regards,


Huub