In big recent recall, was there update for the charger connect that allowed it to display the battery percentage?

[SwissTaycan]

OK it will not work for me as MY 21 but 22kW so as per @AndiL summary :-(

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[W1NGE]

Thank you all for your input. It’s amazing to me how little literature is available through Porsche. And how little the service reps seem to understand it all.
The update letter I received indeed stated the charger would show SOC and to my recollection did not bother to distinguish between MY’s. (Thanks Porsche).
Having called the service rep, one would have thought he’d be able to point this out immediately.
I have a MY20 so I guess that’s the end of it for now. Perhaps Porsche will provide updates in the future.
As a matter of opinion, if I were designing a charger for an electric car, (and I have no expertise in this field), but IF I were designing one, having the SOC visible on the charger seems like one of the first boxes I would check. It’s ludicrous to me that this is even an issue, and that it isn’t simply one of an array of display options selectable out of the box.
That being said, again, thank you all for your input.

The PMC+ or PMCC or any other wall box are not chargers - the use of the term 'charger' is misleading.

The charging element is built into the car - one for AC and one for DC - same for all EVs. All charging and control of it is performed by the car.

The PMC+ etc are actually properly termed Electrical Vehicle Supply Equipment (EVSE) which simply provide a safe, stable and reliable electrical supply for indoor / outdoor use to you car's charger.

The display of information on the PMCC is useful to a point but it is also accessible via the web portal should you need to refer to it as is the charging progress in My Porsche or Porsche Connect App.

Personally, I plug in and forget and rarely use the panel on the PMCC (it's sleeping most of the time and the display blank) so I don't think you are missing out here on too much.

 

[W1NGE]

Do you see the cars VIN in the car registration screen of the PMCC web interface? The charger itself does not report the VIN via EEBUS to a HEMS, even with MY21. The ID is always in the eui48 format.

This documentation on Plug & Charge (even though this is about DC it is similar to AC) does not mention providing the VIN: https://v2g-clarity.com/wp-content/...er-Autocharge-vs-ISO15118-Plug-and-Charge.pdf

No not the actual VIN of the car just the PID (which looks to be the same as a VIN) which is a generic one and registers as 'Taycan' and displays top centre on the PMCC display. Entry also once authorised does the no-PIN trick.

Shame this is 'missing' from MY20 cars - is it software upgradeable or hardware too?

 

[AndiL]

No not the actual VIN of the car just the PID (which looks to be the same as a VIN) which is a generic one and registers as 'Taycan' and displays top centre on the PMCC display. Entry also once authorised does the no-PIN trick.

Shame this is 'missing' from MY20 cars - is it software upgradeable or hardware too?

How that PID is generated is as far as I know not standardized. Typically the certificate that is installed on the OBC is used to generate that. Now one could integrate the VIN into that certificate, but you don't have to. Every car manufacturer could do it differently. Porsche obviously decided to generates something to show to the end user that looks like a VIN. But whatever you see there, is not provided to a HEMS via EEBUS. This also underlines that it could be anything.

Yep, this is imho more than a shame, especially as it was announced to be available after the big update earlier this year. But the confusion and also not being of use for a lot of customers helps Porsche right now. If charging via solar and the PMCC would be used more widely, then this problem would be more critical. Right now they just ignore it for whatever reason.

The software of the OBC can be upgraded in the shop, that should not be a problem. But installing a unique certificate on the OBC is more likely the culprit here, how to do this at at the dealerships safely. Because of security reasons and implications, this is a much harder problem to tackle than integrating this into the manufacturing process. And if this can not be solved, then exchanging the hardware with a pre-installed certificate is the only way to fix this.

 

[W1NGE]

How that PID is generated is as far as I know not standardized. Typically the certificate that is installed on the OBC is used to generate that. Now one could integrate the VIN into that certificate, but you don't have to. Every car manufacturer could do it differently. Porsche obviously decided to generates something to show to the end user that looks like a VIN. But whatever you see there, is not provided to a HEMS via EEBUS. This also underlines that it could be anything.

Yep, this is imho more than a shame, especially as it was announced to be available after the big update earlier this year. But the confusion and also not being of use for a lot of customers helps Porsche right now. If charging via solar and the PMCC would be used more widely, then this problem would be more critical. Right now they just ignore it for whatever reason.

The software of the OBC can be upgraded in the shop, that should not be a problem. But installing a unique certificate on the OBC is more likely the culprit here, how to do this at at the dealerships safely. Because of security reasons and implications, this is a much harder problem to tackle than integrating this into the manufacturing process. And if this can not be solved, then exchanging the hardware with a pre-installed certificate is the only way to fix this.

The Provisioning Certificate ID (PCID) uniquely identifies the electric vehicle PID used - WP0X0111A200FC0C9 (some characters changed to preserve security)

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