What you are showing are filter coils in the feed line. If you look at the patent, there are no input coils (in fact there are, but those are in the part called EMC (filter) in the schematic I posted. The motor coil is used for buck-boost conversion. Power factor correction is done exactly as stated, which happens to be as the schematic you posted.

Note that because of the filter capacitors on the input line it is no so much power factor compensation for the grid.

They should have something like the following:
https://www.mdpi.com/energies/energies-10-00133/article_deploy/html/images/energies-10-00133-g001-550.jpg

Hmmmmm, interesting post there on forumpro, with interesting timing. Of course the schematic is not mine. But no attribution? Oh well, the internet 😉

I must confess I do not exactly understand your question. In one phase operation, N is most definitely used of course. But I am pretty sure through my conversation with the Renault technician the one phase operation is not implemented through the schematic posted on the fr forum, but the way I described it (N being connected through a relay to L3). This was the described failure.

So that the schema matching the ZOE would rather be the “FIG.6”, similar to Fig.2, but with the Neutral too (linked to the diode)