Charging immediately to 85%

[Scandinavian]

You should be fine - the default go to control point is within the PCM and forget the apps. Remote access via the app is not an essential requirement - inconvenient at times may be but that's it. Remote control of climate and start and end control of an AC charging session is not essential either - simply have your profiles (3 locational + 1 general non-location specifc) and timers (you can have 4 of each) set for charging overnight when remote and signal issues prevail - it will be a doddle.

I do not think this is correct. You probably have never had the connectivity problems.

You are correct in that the services like Clima control as well as the adjustments to charging will not be available and that is not the main problem. The app communication is flaky at its best.

But worse is when the system does not reconnect to the Cellular network, the following will not be operational.

• There will not be any download of your seat positions or mirror settings.
• No download of radio stations, destination favourites and no search for charging stations!
• No internet radio stations or Apple Music, news, weather etc. All greyed out.
• Worst of all no traffic information, see @tigerbalm trip report to Norway on return.
• you might observe this when there no longer are satellite images displayd in the navigation.
• The green light for emergency calls can still be active and can be explained by the Audi diagram above.
• And no information about trips etc sent to the Porsche servers.

In my case I have already had to change all of these modules at least once. Especially the Gateway ( 2x) module as well as the Connectivity module. And now the Gateway module is likely to be changed again.

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[OTPSkipper]

@tigerbalm, that was quite informative and sounds like spot on detective work. We need a new “Communication Box” thread starting with that info.

@tutis , I suggested getting in contact with pulsar because they might already have a relationship with Porsche and might be able to explain the problem to them in a way that will get results. Pulsar represents a group of Taycan owners. Maybe their input could carry more weight. Plus I figure they are easier to get a hold of. Let me see if I can find that other post.

 

[tigerbalm]

There are in my observations, two variants of the problem:

1. The Communications Box is communicating with the gateway modules (and hence the MIB3/PCM) but fails to connect to the cellular network.

2: The Communications Box fails to connect to the internal gateway.

What @Scandinavian describes above is issue #1.

If issue #2 randomly happens then additionally the car will not have any bluetooth, wifi or USB connectivity. You can see in the Audi diagram that these interfaces are into the Communications Box and not into the PCM directly. The impact of this is in addition to all the issue #1 impacts described by @Scandinavian you also won't have any handsfree or CarPlay/Android Auto connectivity as a fall-back.

You can tell issue #2 from my video – where you'll notice that in the devices screen there are no entries for bluetooth and the carplay option will fail to work.

 

[tigerbalm]

@tigerbalm, that was quite informative and sounds like spot on detective work. We need a new “Communication Box” thread starting with that info.

Agree a dedicated thread on the comms issue would be very helpful. I'll pull something together now.

Here: https://www.taycanforum.com/forum/threads/communications-issues-pcm-app-porsche-tracking.9899/

 

[OTPSkipper]

@tutis, here it is. You are on that thread too. But now I know who you are.

https://www.taycanforum.com/forum/threads/bizarre-charging-behavior.9845/#post-142009

 

[W1NGE]

I do not think this is correct. You probably have never had the connectivity problems.

You are correct in that the services like Clima control as well as the adjustments to charging will not be available and that is not the main problem. The app communication is flaky at its best.

But worse is when the system does not reconnect to the Cellular network, the following will not be operational.

• There will not be any download of your seat positions or mirror settings.
• No download of radio stations, destination favourites and no search for charging stations!
• No internet radio stations or Apple Music, news, weather etc. All greyed out.
• Worst of all no traffic information, see @tigerbalm trip report to Norway on return.
• you might observe this when there no longer are satellite images displayd in the navigation.
• The green light for emergency calls can still be active and can be explained by the Audi diagram above.
• And no information about trips etc sent to the Porsche servers.

In my case I have already had to change all of these modules at least once. Especially the Gateway ( 2x) module as well as the Connectivity module. And now the Gateway module is likely to be changed again.

I am fully acquainted with the issues borne through poor connectivity but have learned to live with it.

Today for example I had no connectivity whilst driving the car whilst running an errand but all restored on the way back. I have a great signal at home but that's only part of the recipe.

The comms are fundamentally flawed and an Achilles heel of the car.

 

[Archimedes]

I am fully acquainted with the issues borne through poor connectivity but have learned to live with it.

Today for example I had no connectivity whilst driving the car whilst running an errand but all restored on the way back. I have a great signal at home but that's only part of the recipe.

The comms are fundamentally flawed and an Achilles heel of the car.

What do you mean no connectivity? I’ve never experienced any of this and I’m trying to understand what you guys are referring to in this regard. And why would the car need a cloud connection to recall my seat position? Isn’t that stored in the car/key?

Once in a while I have a brief connection issue with SiriusXM in known satellite blind spots, but never any other connection issues, even out in the country.

 

[Scandinavian]

What do you mean no connectivity? I’ve never experienced any of this and I’m trying to understand what you guys are referring to in this regard. And why would the car need a cloud connection to recall my seat position? Isn’t that stored in the car/key?

Once in a while I have a brief connection issue with SiriusXM in known satellite blind spots, but never any other connection issues, even out in the country.

The car looses the LTE connection altogether. No communication with the Porsche servers. No way of receiving traffic information and no internet radio ( or apple music etc).

I am not sure how things are handled in the US but here in Europe the seat positions and mirror settings are all stored in the cloud. Porsche say that this is so that whe you change cars or get a loaner you will have access to all of that in the new car?? You can store this in the car by setting the positions in memory.

And we do not have satellite connection here.

 

[Archimedes]

The car looses the LTE connection altogether. No communication with the Porsche servers. No way of receiving traffic information and no internet radio ( or apple music etc).

I am not sure how things are handled in the US but here in Europe the seat positions and mirror settings are all stored in the cloud. Porsche say that this is so that whe you change cars or get a loaner you will have access to all of that in the new car?? You can store this in the car by setting the positions in memory.

And we do not have satellite connection here.

Ahh, I think it’s entirely different here in the US.

 

[Jhenson29]

I am not sure how things are handled in the US but here in Europe the seat positions and mirror settings are all stored in the cloud. Porsche say that this is so that whe you change cars or get a loaner you will have access to all of that in the new car?? You can store this in the car by setting the positions in memory.

It seems really odd they wouldn’t persist the setting locally and then sync with cloud if a connection is available. Or at least cache the last settings from the cloud. I’m not commenting to doubt your statements, as I don’t know anything about how they do it. Just expressing surprise if there really is no local storage. Seems like “what happens if there’s no connection” is a question that would/should have been asked early on.

 

[W1NGE]

Ahh, I think it’s entirely different here in the US.

It isn't - Porsche Connect ID is the key to this. A key is assigned to an IID and so when you unlock the car the correct ID is loaded and all stored settings then downloaded - PCM, AC etc.

Seat settings can be retrieved locally via the memory buttons.

Biggest connectivity issue comes with the My Porsche App - generally unreliable as this forum bares testiment to. The LTE module sucks.

 

[Archimedes]

It isn't - Porsche Connect ID is the key to this. A key is assigned to an IID and so when you unlock the car the correct ID is loaded and all stored settings then downloaded - PCM, AC etc.

Seat settings can be retrieved locally via the memory buttons.

Biggest connectivity issue comes with the My Porsche App - generally unreliable as this forum bares testiment to. The LTE module sucks.

How come it works even in an area of no cell service?

Btw, I’ve had zero connectivity issues. I lose sat radio momentarily when I go through a known satellite blind spot, but that’s it.

 

[Scandinavian]

I think we have gone a bit off track here. I wonder if @tutis has been able to solve his charging problems. Is the car and the charger now communicating properly?

I think there is an interesting question about the shared charging network though. I have zeeo knowledge about how the EVSE communicate with the car and with other EVSE’s to see how much power it can deliver over time. It could set it to minimum or it could set it to max. The car would need to know if you set a target charge of say 85% at 07.00 in the morning. If it can not have the full power it was promised from the start it needs to reset the start time. Does this happen or will it just start to charge and achieve whatever it can in the morning. One might get the message that the set target charge can not be achieved??

 

[W1NGE]

How come it works even in an area of no cell service?

Btw, I’ve had zero connectivity issues. I lose sat radio momentarily when I go through a known satellite blind spot, but that’s it.

It will remember the last settings. Experiment with a secondary Porsche Connect ID and your other key to better understand.

Like all faults and issues not everyone gets them - you've simply been lucky so far and potentially your car new enough to have benefited from enhanced hardware.

 

[Archimedes]

It will remember the last settings. Experiment with a secondary Porsche Connect ID and your other key to better understand.

Like all faults and issues not everyone gets them - you've simply been lucky so far and potentially your car new enough to have benefited from enhanced hardware.

If it remembers the last settings, why would a loss of connectivity matter? If it remembers the last settings, it means that it’s storing them somewhere in the car, right?

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