Has anyone experienced a problem with delayed charging profiles?

[CarbonTax]

Ja hey Der, Doug! Congrats on the forthcoming ride. The charging aspect will come to you quickly (sometime hiccups). I'd like to get back up North and drive the Taycan along Skyline Blvd and down to Canal Park when it's not covered in ice (wife is from the west side/Morgan Park)

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[W1NGE]

Let me see if I've got this. Don't have the Taycan for another 3 or so weeks, but I've done a lot of reading about this. Those of you with more knowledge please be brutal with your corrections.

Profiles are associated with physical locations. For the physical location defined in the profile (Home, Work, Cousin Ed's) you can set a minimum charge and preferred hours that define when charging is cheap.

Without an accompanying timer, the profile causes the car to immediately charge to whatever minimum charge you've set for that location. If you aren't at a specific profile location it immediately charges to the minimum set for the general (AKA anywhere else) profile.

That's assuming all profiles are enabled. If I'm at work and plug in, but the work profile is not enabled the general profile applies.

At home, I set the minimum to say 40% or less because that will always get me up to 100 miles of range immediately. I also set a preferred charging window of 11:00 PM to 5:00 AM because that's when my rate is 7.9 cents/KWh.

At work, because it's no cost to me at any time, I set the minimum to 85% and don't bother with the preferred hours.

Cousin Ed is kind of particular. He says I can charge from 1:00 AM to 3:00 AM and that's it. There I set the minimum charge to 5% and the preferred hours to Ed's two hour window.

Then, for the general/everywhere else profile I set the minimum charge to 95%. It's set high because if I just plug into some random charger I generally want the car to charge.

Now, if all four profiles are active, when I plug in at home the car immediatly charges to 40% then waits. At work, it immediatly charges to 85% then waits, and at cousin Ed's it waits. Everywhere else, if I plug it in it will charge until it hits 95% or I unplug the car.

To charge above those minimums you need a timer. I'm going to set up two.

A weekday timer that says the car needs to be 85% charged and preconditioned to 68 degrees at 8:15 AM.

A weekend timer that says the car needs to be 85% charged at 8:00 AM, but I don't care about preconditioning.

This all works well until I decide to visit cousin Ed. The profile says 1:00 AM to 3:00 AM, but the timer says 85% by 8:00 or 8:15. The car is going to calculate how much power it can draw, and if it can charge to 85% after 1:00 AM it's going to start charging at 1:00 and be at 85% the next morning even if it has to charge after 3:00. If it needs to, it will start charging before 1:00 AM to meet that 85% goal.

Best not to plug in at cousin Ed's at all really.

As to the OP, my guess is that the general profile is currently set to charge to 100% and any location specific profiles are currently not enabled, or aren't actually associated with the physical location the charging is happening at.

Car will charge to minimum set regardless of an active timer and / or profile.

Two type of profile - General or Locstion based. General is independent of location.

Always use a profile and timer for controlled start and stop times. Charging will commence immediately if the minimum charge set is higher than the current state of charge when connected to your EVSE and then automatically pause when the minimum is reached.

Applies only to AC charging.

 

[ithinkmac]

I hate the whole timer setup they use. I understand the concept, to always have the battery ready when you're ready to leave.

BUT, in practice, it works like 90% of the time. (for me)

that 10% when it does not work, is most likely Murphy at play, because that's when I need it the most.

What's the best option to program it, so that during my lowest utility rate of 12am - 3pm (when I want it to charge), but I want to always start at 12am and then stops when it hits 85%. I think this is the reverse of the timer profiles, which is targeting when I tell PCM that I want to leave, the problem I have with this, sometimes, it'll not hit the 85% target for whatever reasons, miscalculation, bad charging wattage from wall charger. Quite a few times, I wake up with either 80%, 72%, 60% and it stops at the designated time (by design of course). Even thought car is still plugged, it will stop charging.

Or times when previous session, was set to Direct Charge (100%), but I come home and turn off Direct Charge, next day. Car is charged to 100% even thought the profile is back to regular 85% at like 7am or something. Happened quite a few times. Annoying.

-ThinkMac-

 

[W1NGE]

I hate the whole timer setup they use. I understand the concept, to always have the battery ready when you're ready to leave.

BUT, in practice, it works like 90% of the time. (for me)

that 10% when it does not work, is most likely Murphy at play, because that's when I need it the most.

What's the best option to program it, so that during my lowest utility rate of 12am - 3pm (when I want it to charge), but I want to always start at 12am and then stops when it hits 85%. I think this is the reverse of the timer profiles, which is targeting when I tell PCM that I want to leave, the problem I have with this, sometimes, it'll not hit the 85% target for whatever reasons, miscalculation, bad charging wattage from wall charger. Quite a few times, I wake up with either 80%, 72%, 60% and it stops at the designated time (by design of course). Even thought car is still plugged, it will stop charging.

Or times when previous session, was set to Direct Charge (100%), but I come home and turn off Direct Charge, next day. Car is charged to 100% even thought the profile is back to regular 85% at like 7am or something. Happened quite a few times. Annoying.

-ThinkMac-

This is simple to solve with a profile and timer. Min charge 25% and departure by 15:00 with a target of 85%.

Keep in mind the timer aims to be ready by your chosen departure time and so depending on your battery state of chargewill calculate backwards.

Given you have such a large window to charge I would make the timer between 01:00 and 07:00 - plenty time for a 40A supply to charge from 25% to 85%.

Do not use direct charge as this will override everything when AC charging.

 

[Salty]

Car will charge to minimum set regardless of an active timer and / or profile.

Two type of profile - General or Locstion based. General is independent of location.

Always use a profile and timer for controlled start and stop times. Charging will commence immediately if the minimum charge set is higher than the current state of charge when connected to your EVSE and then automatically pause when the minimum is reached.

Applies only to AC charging.

I’ve been trying to figure this out since having my home charger installed. That last paragraph explains it well - thanks.
Still don’t know why they have a start time in the “Profile” section though. Need to give that some more thought I guess.

 

[W1NGE]

I’ve been trying to figure this out since having my home charger installed. That last paragraph explains it well - thanks.
Still don’t know why they have a start time in the “Profile” section though. Need to give that some more thought I guess.

The timer in the profile relates to the control of both grid power and solar power and the charging session is optimised. Unless you have a home energy manager (HEM) in your setup at home then ignore this type of timer.

If using a non Porsche EVSE make sure you have no programming enabled on that device.

 

[Novemberwhisky]

Thanks for these explanations. I think I’ve got it. Changed the profile to 25% and timer to my off peak 0000-0700 charging to 80%. the app charging graphic turns from green ( charging active X.X kW) to blue (charge pause).

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