New Charging Profile - what am I doing wrong?

[4thPcar]

I'm outside the honeymoon for Porsche Connect and tried to set up a daytime profile on the car. There is a night protocol already there. I deselected the night profile and added a "Day Profile" to run from noon - 6pm (this was recommended by our solar company and we thought, okay lets see how it impacts our bill).

The system accepted the profile but it just hit noon here and the charger did not kick in. It looks primed to start at some point (color is blue on panel, which indicates a charge is programmed), but it shows as Not Charging.

Any ideas what I've done wrong? Thanks in advance.

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[SergeyIndy]

Charger has to be a dumb charger that just provides power when called.
Blue light means charging is Paused until next condition is met to start charging.
Please share a copy of your charging setting from the app for the Day Charging Profile.

 

[4thPcar]

Charger has to be a dumb charger that just provides power when called.
Blue light means charging is Paused until next condition is met to start charging.
Please share a copy of your charging setting from the app for the Day Charging Profile.

@SergeyIndy I understand what you're saying but the "night profile" always worked flawlessley. I have the Tesla Universal Charger. Attached some photos from the Charging app on the car. I assume the Timer isnt taking priority but shared the pic anyway. Any help would be appreciated!

 

[Jhenson29]

If there is a timer, It doesn’t just start charging at the beginning of the preferred time. It starts charging to be done at the end time.

You only need 30%. It doesn’t need 6 hours to do that on 9.6kW power (assuming that’s what you’re using). So, my guess is that it will start later.

 

[4thPcar]

If there is a timer, It doesn’t just start charging at the beginning of the preferred time. It starts charging to be done at the end time.

You only need 30%. It doesn’t need 6 hours to do that on 9.6kW power (assuming that’s what you’re using). So, my guess is that it will start later.

I'll let you know! I don't need to go anywhere today.

 

[bn8959]

Set the timer departure time to the same as the end of your preferred charging window (6pm)

 

[Jhenson29]

Set the timer departure time to the same as the end of your preferred charging window (6pm)

Then why have the preferred times at all?

 

[bn8959]

It’s a ‘preferred’ time, so it will aim to do the bulk of the charge within the window. But it will also aim to top-off the last of the charge just before your chosen departure time, so there is warmth in the battery, which can occur outside the preferred window.

hope that makes sense.

for me, I found it best to use the timers in the EVSE - which are a hard limit on when the car can charge - then set the taycan to ‘optimised charging’ (not preferred window) and no timer. The car will then want to always immediately charge to the set ‘minimum’ but the EVSE controls when it is allowed you. But then using timers is not going to work.

 

[Jhenson29]

It’s a ‘preferred’ time, so it will aim to do the bulk of the charge within the window. But it will also aim to top-off the last of the charge just before your chosen departure time, so there is warmth in the battery, which can occur outside the preferred window.

hope that makes sense.

Are you responding to me?

My point is if the time departure time is at the end of the profile preferred times, then the preferred times don’t do anything because both end times are the same.

 

[bn8959]

Sorry yes I was.

yes true. I guess it depends what you priority is - persuade the car to really do all its charging in the ‘preferred window’ or if you are happy for some of the charging to occur outside that window and just before your chosen departure time so that you have a warmer battery for better efficiency on your journey.

 

[Jhenson29]

Sorry yes I was.

yes true. I guess it depends what you priority is - persuade the car to really do all its charging in the ‘preferred window’ or if you are happy for some of the charging to occur outside that window and just before your chosen departure time so that you have a warmer battery for better efficiency on your journey.

Ok. It’s helpful if you either hit reply or @ the person you’re responding too. Just FYI.

It will charge outside of preferred time with timers. They are “preferred”. Not strictly enforced. So, when the timer is at the end of the preferred times, the preferred times really don’t do anything.

 

[SergeyIndy]

@4thPcar, I see what's happening.

You current SoC is 54%. Profile DAY CHARGE assume is set to 85% with preferred timeframe.

Therefore, you cannot expect the car to start charging at EXACTLY 12:15pm, because there is MORE time in the preferred window than needed to get you from 54% to 85%, so the car is Paused since the car calculates the time needed from the target 6pm backwards. Therefore, for example, if it needs 3 hours to charge to 85%, it will start charging at 3pm and will get you to 85% by 6pm.

Bottom line, the car is working as expected.

Basic rules are:

Car will charge to 25% asap when plugged in if SoC is below 25%.
Profile instruction executes first, then it waits on Timer instruction.
Timer instruction must be recurring, or it will charge to 100% after one time Timer is complete.
Above assumes Direct charging is Off.

 

[4thPcar]

@4thPcar, I see what's happening.

You current SoC is 54%. Profile DAY CHARGE assume is set to 85% with preferred timeframe.

Therefore, you cannot expect the car to start charging at EXACTLY 12:15pm, because there is MORE time in the preferred window than needed to get you from 54% to 85%, so the car is Paused since the car calculates the time needed from the target 6pm backwards. Therefore, for example, if it needs 3 hours to charge to 85%, it will start charging at 3pm and will get you to 85% by 6pm.

Bottom line, the car is working as expected.

Basic rules are:

Car will charge to 25% asap when plugged in if SoC is below 25%.
Profile instruction executes first, then it waits on Timer instruction.
Timer instruction must be recurring, or it will charge past Timer target to 100%.
Above assumes Direct charging is Off.

"working as expected," well, that's currently a theory but I will let you know! Thanks for all the good advice.

 

[4thPcar]

Okay it started at 3pm! Thanks all, it is indeed "working as intended." Theory confirmed.

 

[luvdrivn]

Watch this a few times and you will get it.. Helped me immensely.

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