Profiles DO limit SoC (it seems)

[bn8959]

I don’t know if this is ‘new’ or changed behaviour, but always understood that you needed that irritating combination of a profile and a timer set in order to limit the SoC to a chosen number. If you didn’t have either correctly set, then it would charge to 100%.

Over on the MiEnergi forum, someone said you only need a profile with a ‘minimum’ SoC set. I was certain they were wrong!

but I’ve just done a test:

current SoC - 76%
All timers disabled
One active profile with minimum SoC set to 25% and charging option set to ‘optimised’ (ie no preferred charging window).

I expected the car to zoom off charging to 100% - but it didn’t! It said charging complete - with a 76% SoC!

I upped the minimum SoC to 80% and it started charging.

So it seems there IS a simple way to stop it charging at a particular SoC - that is just the minimum charge set on a profile.

this doesn’t work with Preferred charging widows though. It ignores them and starts charging outside of the window to hit the minimum.

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[Hirschaj]

Did you leave it plugged in for a while? It should start charging again and will end up at 100% I think I read on here it starts charging again 30 minutes after it hits the minimum defined in the profile.

 

[bn8959]

Did you leave it plugged in for a while? It should start charging again and will end up at 100% I think I read on here it starts charging again 30 minutes after it hits the minimum defined in the profile.

Humm. No I didn’t leave it. Haven’t had much time. But the central display was say ‘Charge complete’ (this was with 76% SoC and a minimum on the profile of 25%), so it would seem a bit odd for it to change its mind later.

 

[Hirschaj]

Humm. No I didn’t leave it. Haven’t had much time. But the central display was say ‘Charge complete’ (this was with 76% SoC and a minimum on the profile of 25%), so it would seem a bit odd for it to change its mind later.

Maybe it’s the other way around then, meaning if only a timer is set then it will start charging again 30 minutes after the timer target is reached. I can never remember so I always use the 2 in combination it just works.

 

[bn8959]

This is most useful when using schedules on your EVSE.

The Octopus intelligent energy tariff (which can integrate directly with the Taycan, but is unreliable) integrates with certain EVSE’s (Zappi in my case). It controls the charging schedule. However you don’t want it charging to 100%. Its gets really messy with timers+profiles to limit the SoC, as sometimes the car decides to NOT charge (as it believes it can hit the Timer target if it starts later) but then the EVSE may stop it from charging later on. So it all gets complicated and messy. This allows the car to simply draw juice whenever the EVSE allows it, but will stop at the right SoC (as a L2 EVSE has no way of interrogating the SoC directly, so wouldn’t itself know when to stop).

 

[Midlifecrisis]

The profile sets the minimum level that it will charge up to. In your case, with 76% charge and a profile BELOW that, nothing will happen. If the profile is ABOVE that then it will charge immediately to the profile level. In your case, up to 80% when you set it.
A timer will then charge up to the limit you set in time to be ready for the time you set.
In practice, I mostly use just the profile and vary it depending what I want. Unless I want a high state of charge (95-100%) for a long journey and the car warm and ready at my departure time - then I add in a timer.

 

[bn8959]

The profile sets the minimum level that it will charge up to. In your case, with 76% charge and a profile BELOW that, nothing will happen. If the profile is ABOVE that then it will charge immediately to the profile level. In your case, up to 80% when you set it.
A timer will then charge up to the limit you set in time to be ready for the time you set.
In practice, I mostly use just the profile and vary it depending what I want. Unless I want a high state of charge (95-100%) for a long journey and the car warm and ready at my departure time - then I add in a timer.

yes - which is good - and better than how I understood it worked (based on many other threads here).
The only situation it doesn’t work is if you only want to charge in a preferred window. In this case you have to set a low profile minimum and set a timer. It would be nice if the profile Preferred charging window had a tick box ‘also apply window to profile minimum SoC charging’.

 

[W1NGE]

I don’t know if this is ‘new’ or changed behaviour, but always understood that you needed that irritating combination of a profile and a timer set in order to limit the SoC to a chosen number. If you didn’t have either correctly set, then it would charge to 100%.

Over on the MiEnergi forum, someone said you only need a profile with a ‘minimum’ SoC set. I was certain they were wrong!

but I’ve just done a test:

current SoC - 76%
All timers disabled
One active profile with minimum SoC set to 25% and charging option set to ‘optimised’ (ie no preferred charging window).

I expected the car to zoom off charging to 100% - but it didn’t! It said charging complete - with a 76% SoC!

I upped the minimum SoC to 80% and it started charging.

So it seems there IS a simple way to stop it charging at a particular SoC - that is just the minimum charge set on a profile.

this doesn’t work with Preferred charging widows though. It ignores them and starts charging outside of the window to hit the minimum.

Optimised charging option is only relevant if you have alternative power source / mix of source e.g. solar with pre-programmed $ / kW rate.

3 years of Taycan ownership (2 Taycans) and ending a session has only ever been possible with a timer set. Using a profile on its own has never stopped until 100% charge is reached.

In order to control the end of a charging session i.e. departure time then you must use a timer in conjunction with a profile.

Which EVSE are you using and if non-Porsche has all programming been disabled on it?

 

[bn8959]

Optimised charging option is only relevant if you have alternative power source / mix of source e.g. solar with pre-programmed $ / kW rate.

3 years of Taycan ownership (2 Taycans) and ending a session has only ever been possible with a timer set. Using a profile on its own has never stopped until 100% charge is reached.

In order to control the end of a charging session i.e. departure time then you must use a timer in conjunction with a profile.

Which EVSE are you using and if non-Porsche has all programming been disabled on it?

that’s the interesting thing and your situation is how I understood it worked. Which is why I’m surprised

I set my EVSE to ‘dumb’ mode so it would always supply power.

sure enough, car did not charge when the the profile ‘min’ level was below the current SoC - but only on ‘Optimised charging’ mode - appreciate that that mode is effectively also a ‘dumb’ mode if you don’t have PMCC and HEM.

I wonder if it’s a MY change? I have a MY24 GTS. Maybe older Taycans have a different behavior?

 

[eddieterry]

This has been gone through before. The work around is to keep optimised charging ticked and then the charge will stop at whatever you set it to and not go beyond without any need for timers.

 

[SergeyIndy]

+1 to @W1NGE point.

I only use a Timer to limit maximum charge because:

- I charge at home overnight, so only need it at max 85% in the morning
- Have no need for a minimum emergency charge (can use other cars)
- Have a need to limit to 85% for daily local use only, so no need for 100%
- Have a need to go 100% only when going on a long trip then a separate Timer will make this happen by the departure time, but still utilizing overnight to do so as it spreads out the charging over a long period of time, instead of using unnecessary rush mode to do so.

I have no need for a Profile to complicate things because:

- I do not need it to charge in a hurry to a minimum charge set
- I do not need to deal with all the issues that it runs off to 100%
- I have no system that confusing Optimized option would work with in the US anyway
- I have no need for any specific time to be charging as our rates are the same all the time
- If I ever need any type of charge in a hurry using AC, I would set it to Direct Charging manually

My point is that do not complicate your life with Profiles if you do not need them.

 

[W1NGE]

that’s the interesting thing and your situation is how I understood it worked. Which is why I’m surprised

I set my EVSE to ‘dumb’ mode so it would always supply power.

sure enough, car did not charge when the the profile ‘min’ level was below the current SoC - but only on ‘Optimised charging’ mode - appreciate that that mode is effectively also a ‘dumb’ mode if you don’t have PMCC and HEM.

I wonder if it’s a MY change? I have a MY24 GTS. Maybe older Taycans have a different behavior?

I don't think MY change is relevant to be honest. I had MY21 and now MY23 (March 2023). An update would have been applied to the PCM for any MY to make consistent and the Owner's Manual updated if so.

 

[Midlifecrisis]

3 years of Taycan ownership (2 Taycans) and ending a session has only ever been possible with a timer set. Using a profile on its own has never stopped until 100% charge is reached.

In order to control the end of a charging session i.e. departure time then you must use a timer in conjunction with a profile.

This is very odd. My experience of 2 Taycans in 2 years is that setting a profile without a timer causes the car to charge up to the profile level then stop. It will ONLY charge beyond the set profile level if a timer is used as well.

We must be talking about different things here as we both seem to have had contrary experiences.

 

[Jonathan S.]

This is very odd. My experience of 2 Taycans in 2 years is that setting a profile without a timer causes the car to charge up to the profile level then stop. It will ONLY charge beyond the set profile level if a timer is used as well. [...]

Same here.
I have a profile set to 85%. And without doing anything else, my Taycan always charges to 85%.
Whenever I need 100% I just switch the slider over to direct charging.

 

[Midlifecrisis]

Same here.
I have a profile set to 85%. And without doing anything else, my Taycan always charges to 85%.
Whenever I need 100% I just switch the slider over to direct charging.

That is one option. The other is to set a timer with 100% charge

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