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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Sat Apr 14, 2018 2:55 pm 
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Joined: Sat Jul 08, 2017 1:13 pm
Posts: 16
That sounds almost exactly what mine is doing, except for me the problem is intermittent. Yes, I agree that the Audi techs have no clue how the charging timers work and that your charger is not behaving correctly. It sounds like you are setting the timer up correctly (especially since you had it working fine before). I've had my car in the shop 2 times now for the charger and both times I got bogus explanations just like you did. I'm at a loss right now figuring out how the situation can be escalated. I've called Audi's general customer support number and they are even more clueless than the shop techs. Maybe we should try a non-dealer repair shop?


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Sun Apr 15, 2018 3:06 pm 
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Joined: Thu Dec 29, 2016 12:09 am
Posts: 6
I don't think a Non dealer Audi shop would touch this car. I'm guessing that this will be some kind of software issue and access to the code will be required. My SA told me they were uploading all kinds of files from the car to Audi's tech help center with no problems found.
I'm going to try a few more dealers in the area to see what happens but I'm not expecting anything. Glad that I leased it, only 19 payments to go. Too bad this car is too complicated for Audi to support.


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Mon Apr 16, 2018 4:21 pm 
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Joined: Tue Aug 08, 2017 11:32 am
Posts: 27
Thanks, Bros, for this. It was very helpful for me. I have been using the etron app - which works well for me, but is not very intuitive to learn. I had decided that even though my electricity provider won't use my smart meter on the house to offer different rates, I should still try off-peak charging just to help reduce peak loads and maybe use up some of the excess night-time wind power we have here in the mid-west. The owner's manual is very cryptic and I wasn't mastering the app until I read your helpful post. I went looking for "repeat timer." I had seen the term "Indiv timer" but didn't figure out that that meant individual day or single event vs. repeat. When I finally followed the arrow, there I found the necessary repeat timer. It's great to be able to establish two sets of days -- like week days and weekends. Anyway, it's working great now. I really appreciate the time people take on this forum. It's helped me with a number of issues.

Charging at 2 am is just a small thing, but I feel every little bit helps. That is kind of what electric mobility is all about. One person's contribution is very small, but it's part of the sum and a hopeful direction. It's like voting. You do your small part and hope it goes in the right direction. Thanks again.



bros225 wrote:
I'm still wondering if your problem is intermittent or if it switches to immediate charging every time. If it happens every time, then check to see if the timer light blinks a few times before switching to immediate charging. If it does blink, then I believe it is telling you that the timer is not active. In this case you need to make sure the timer check-box is checked and that you have the timer set as a repeat timer, not a one-time timer. I experimented by setting a one-time timer. The next day it would not obey the timer and that's because it deactivated the timer (the check-box was empty) after the one-time event had passed. I.e., if you are charging every night in a preferred window, then set timer 1 as a repeat timer, every day of the week, and make sure the checkbox for timer 1 is checked when you back out on the previous screen. Also make sure departure time is well outside of your preferred window (for example, if preferred window is 11PM-7AM, make the departure time 3pm or something like that). I say this because I observed that the departure time can override the preferred charging window and cause immediate charging if the departure time is near when you plug in. I'm guessing that charging will start immediately if necessary to have the car fully charged by the departure time.

I set mine according to the above and it works nearly every time, except once in a while (maybe every 20 charges) it will disobey the timer. In this case the red light comes on like it should (it does not blink), but then I hear a dull pop and it switches to immediate charging. I'm waiting for it to happen again, but the last time it happened it charged for a few minutes and then switched to timer mode automatically! (I never bothered to wait the other times). If I find that this happens consistently, then it leads me to believe that there is something to this seemingly bogus 60% rule. This would mean it will only disobey the timer when the battery is very low, but I need more occurrences to confirm that.

Note: "60% charged" may be ambiguous. I seem to recall hearing or reading that 50% of the battery is reserved for hybrid mode. If this is true, then I would picture the battery as having 2 partitions - one for hybrid mode and one for EV mode. When I say "hybrid mode," I mean operation when the stored battery partition is empty (not to be confused with 2017 hybrid mode, in which the car runs as a hybrid but uses the stored battery too). The hybrid mode I'm talking about is called "battery hold" mode on my 2017. So, once the stored battery "partition" is empty, the hybrid partition level is now fluctuating and may be below 60% at the time you plug in the charger. Bringing that partition up to 60% does not change the fact that your stored battery partition is still empty. Of course I'm speculating here!


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Tue Apr 17, 2018 12:13 pm 
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Joined: Sat Jul 08, 2017 1:13 pm
Posts: 16
Glad to help Robbiejoe, although I'm still bewildered by the concept of having a charging schedule at all. It seems to me that if you want to charge you plug it in, and if you don't want to charge you don't plug it in. The preferred window makes sense here but not the timer schedule. The timer schedule for charging only makes a tiny bit of sense if you are going to leave on vacation for a month or so and leave your car plugged it... but why would you do that? So, I'm thinking that the timer schedule is primarily for preconditioning. That makes some sense to me - e.g. you live in a cold climate and you want the interior to be warm mon-fri by the departure time (say, 8am). Since you need some battery charge to precondition the car, then I suppose charging according to the timer and according to the departure time (i.e. bundling the preconditioning and the charging into one Gordian knot) kinda works.


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Mon May 07, 2018 2:12 pm 
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Joined: Thu Oct 27, 2016 4:25 pm
Posts: 50
OK, Charging:
1. My car followed the schedule since new in that it wouldn't charge outside of the scheduled time. This is IMPORTANT because we have very high on-peak hours electric costs compared to off-peak. I'd rather burn gas than buy on-peak electricity to charge this car, even to 60%. Given the small battery, I never return home with anything close to 60% charge.

2. However, I believe that at the turn of the year to 2018 the car began ignoring the schedule and would charge all the way up (not 60%) upon a plug-in from the factory charger (240V, 100%). (I couldn't determine the exact date). The dealer technicians scratched their collective heads until they produced a factory bulletin stating that the car should charge to 60% when plugged in, irrespective of the schedule, and refused to fuss with it further. My incredulity peaked, I played with the schedule. Setting and resetting the schedule has corrected this non-nonsensical and never-before-seen behavior. That reminds me, time-of-use rates and hours changed on 1 May. I need to reprogram the charging schedule.

3. Bonus gripe: I understand the usefulness of a departure time setting if one wants to pre-condition the car before leaving home on a regular schedule (I don't). But, why, oh why, does the car not just start charging as soon as its plugged in if within the scheduled charging window, or immediately upon entering said time window? The charging programming in the car appears to be designed to start charging as late as possible to be fully charged at the departure time, rather than charging as soon as possible when entering an allowed charge window and topping off before the schedule window end or to pre-condition. This seems like lazy programmers/business analysts at work. I know I can manually push the button to initiate charging, but I'm not wanting to remember just when electricity low-cost (off-peak) periods start and end on weekends, holidays, weekdays, etc.


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Mon May 07, 2018 3:45 pm 
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Joined: Sat Jul 08, 2017 1:13 pm
Posts: 16
I have a 2017 model and it appears to be working reasonably. If I plug it in outside of the preferred charging window, it will wait and start charging when the window starts. If I plug it in inside of the preferred charging window, it starts charging immediately. The exception to this rule is when the departure time is near - in this case it starts charging immediately, even if outside of the preferred charging window. In this case the red timer light still comes on (and I think it blinks) but you can hear a click as the car switches to immediate charging.

Re- peak rates. Maybe my calculations are off, but I concluded that using one of the EV rates plans in California would actually cost me more than the "any time" rate plan that I have now. It might be because the capacity (6.8 kWh) is so small that the savings do not make up for the increase in rates I would pay for other electric use during peak times. At an average cost of $0.17 per kWh I'm paying approx $1.17 per charge. My gripe is that I get gouged at public charging stations because I end up paying the maximum (fixed fee + per kWh charge) but the small capacity doesn't get me very much for it. I.e., I'm paying $2.75 for 15 miles (I know the car says 25 miles, but 15 seems to be the reality). I've also been unplugged by EV car owners asserting their priority. When this happens I can pay the max and not even get my full charge!

I still like the car though - super quiet, comfortable, and what a fun ride!


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Mon May 07, 2018 6:39 pm 
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Joined: Sat Mar 19, 2016 8:30 am
Posts: 83
When I first got the car I thought about how I would bring my EVSE and charge when out and about (ie visiting family, down at the cottage, etc). But after a year and a half (well I realized it pretty quickly) it's clear to me that the battery really only works for commutes. Mind you it works well in that respect, it just covers my 30km drive to work unless it's cold out, which is probably 75% of my driving. Outside of that commute, it's just a hybrid like a prius -but way nicer :)
As for rates, I can charge off-peak overnight for the morning commute, and at the office they don't care to meter my usage, so that's a little bonus.
Doing the math over the first year, I figure I saved approx. $900-1k (CAD) on travel vs gasoline.



IAN


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Tue May 08, 2018 12:59 pm 
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Joined: Mon Sep 14, 2015 8:18 am
Posts: 15
So Jumper,
Just to clarify:
2. However, I believe that at the turn of the year to 2018 the car began ignoring the schedule and would charge all the way up (not 60%) upon a plug-in from the factory charger (240V, 100%). (I couldn't determine the exact date). The dealer technicians scratched their collective heads until they produced a factory bulletin stating that the car should charge to 60% when plugged in, irrespective of the schedule, and refused to fuss with it further. My incredulity peaked, I played with the schedule. Setting and resetting the schedule has corrected this non-nonsensical and never-before-seen behavior. That reminds me, time-of-use rates and hours changed on 1 May. I need to reprogram the charging schedule.

Does this mean your car no longer starts charging (to 60%) as soon as its plugged in irrespective of the scheduled charge timer?


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Tue May 08, 2018 6:12 pm 
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Joined: Thu Oct 27, 2016 4:25 pm
Posts: 50
khs604 wrote:
So Jumper,

Does this mean your car no longer starts charging (to 60%) as soon as its plugged in irrespective of the scheduled charge timer?


Yes, I just got home and plugged the car in outside of the scheduled charging window. It gave a few quick green light blinks and is waiting until a couple of hours before the scheduled departure time to start charging.

I do think that when it started charging on plugin that it may well have gone to 60 percent, and that it stayed at 60 percent, at least at times, even through the scheduled charging time. I recall coming out in the morning and wondering why the car was only partially charged. It never occurred to me that it would charge to a percentage, so I didn't pay it much attention in that context.

My weekday charging schedule is 11:01PM-6:59AM with a 6:00AM departure time, and no pre-conditioning.


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 Post subject: Re: Scheduled charging issue (2016 PPlus/Tech/Sport) ...
PostPosted: Thu May 10, 2018 1:32 pm 
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Joined: Mon Sep 14, 2015 8:18 am
Posts: 15
Quote:
My weekday charging schedule is 11:01PM-6:59AM with a 6:00AM departure time, and no pre-conditioning.

I tried your charging schedule. No luck, it started charging right away until it got to 6-7 miles charged up,(~60%) then the timer kicked in.
I tried 2 dealers, both said this was normal. They cant explain why it worked normally for 15 months though.


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