tomas206
Posts: 1
Joined: Thu May 18, 2017 11:04 am

Software update - unable to set low-cost charging

Thu May 18, 2017 12:41 pm

Just had a software update applied by BMW while my 2017 i3 REX was in for the minor REX recall. Now neither the vehicle nor the app will let me keep the "low cost charging" option setting. The low-cost rate window is still correctly set in my car, and I even changed each value by 1 minute (start/end time) to force an update, just in case that fixed it (it didn't). It lets me select low-cost option, it just doesn't work / respect the setting.

For example, if I park my car for the night and try to set leave time of tomorrow and low-cost charging, the car now resets back to charge immediately after a few seconds. Even if I quickly leave the car, or left-click to accept parameters, before it resets the setting, as soon as I plug in it starts charging. This will be a huge issue (>7x cost per kWh) when peak / summer rates come in, and is already 3x more costly (per my local EV tariff) to charge off-peak vs "super off-peak" or overnight.

I tried to use the app to force next planned trip through with low-cost charging and it will not work either. In this case, the new departure time won't even be accepted at the vehicle now.

Anyone else having trouble with the charge scheduling feature for low-cost? It worked until I got the update last week (w/o May 11, 2017). I'm asking the local dealership who provided the update about this and will post any learnings.

bwilson4web
Forum Supporter
Posts: 547
Joined: Fri Apr 29, 2016 11:59 pm
Location: Huntsville, AL

Re: Software update - unable to set low-cost charging

Sat May 20, 2017 10:32 pm

This explains something I first saw yesterday. I tried to use the app to precondition the car and it did not work.

Bob Wilson
20k/27k mi 2014 BMW i3-REx
10k/10k mi 2017 Prius Prime

Gif
Posts: 228
Joined: Mon Jun 06, 2016 12:24 pm
Location: Bottom right hand corner of Wales

Re: Software update - unable to set low-cost charging

Fri May 26, 2017 3:03 pm

What software version out of interest? Mine is on

<i-step>I001-16-07-503</i-step>

And also out of interest what are your low cost tariff times set to?

Opusi3
Posts: 1
Joined: Mon Jun 12, 2017 2:25 pm

Re: Software update - unable to set low-cost charging

Mon Jun 12, 2017 2:29 pm

This removal of the low cost charging option is a bug in the current software release. Supposedly the engineers know about it, but we have had this bug since mid April and nada from BMW service as to when it will be fixed.

We live on solar/Time of Use rate system in CA so need to get up at midnight each night to plug our car in. We are NOT happy campers to say the least. We also asked if BMW would let us revert back to the old version and the answer is no.

Once you bring your car into the dealer for service, and it is hooked up to the compeer system for diagnostics, it will automatically get this update are remove the low cost charging option form working.

nitramluap
Posts: 102
Joined: Thu Jul 14, 2016 12:43 am
Location: Not the USA

Re: Software update - unable to set low-cost charging

Mon Jun 12, 2017 9:52 pm

As a short term solution, can you not set up the timer from the EVSE side, rather than the car side (i.e. a wall socket timer for the occasional use EVSE, or a switchboard timer for a Wallbox EVSE)?

Following on from that, if you used a device like a Wemo Switch plugged into the occasional use charger, not only could you set timer functions but you could also control it remotely via its app as it is WiFi connected. :-)

If you have a wall mounted Level 2 EVSE, check to see if you can enable/disable it via a relay contacter. If you can, you could use a device like the Wemo Maker to control it remotely. :-D

I use a Wemo Maker to control my garage door. It's great!

cdnji
Posts: 36
Joined: Mon Dec 12, 2016 2:07 pm
Location: Canada

Re: Software update - unable to set low-cost charging

Fri Jul 21, 2017 7:07 pm

Was called in for a software update/fix for this issue.

You can wait or be pro-active and ask your dealer to have the fix applied.
2017 i3Rex-Suite;Tech;Moonroof

ladriver
Posts: 10
Joined: Sun Mar 08, 2015 6:14 pm

Re: Software update - unable to set low-cost charging

Thu Dec 28, 2017 1:37 pm

Hi, we have the same issue with a new 2017 BEV just picked up, it's now back at dealer who is telling us they have to communicate the problem to Germany for instructions!

Did you get a software update to fix the issue or are you still living with it?
We thought perhaps it was associated with the airbag update required to release the cars after the stop sale. But in that case they should have seen more complaints.

Any help would be much appreciated as we dont have much faith in the dealership.
FYI, this is our second i3 after returning our 2014 after a three year lease so we're very familiar with the settings and programming the feature.

Thanks again.
Cyn and Vin

jadnashuanh
Posts: 3841
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Software update - unable to set low-cost charging

Thu Dec 28, 2017 2:19 pm

FWIW, the local dealers do not have the software to update any of their cars...to get it, they connect your car to their diagnostic machines, and it connects to corporate headquarters (or somewhere in Germany) over the internet, and then, and only then, does their computer determine what software is in the car, and what needs to be updated. The dealership doesn't determine what, just when, any update is applied. THen, while it doesn't usually have a glitch, sometimes, if the connection has a hiccup, they may need to start over again, and it can take awhile. Usually, though, it goes fairly fast and smoothly.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

ladriver
Posts: 10
Joined: Sun Mar 08, 2015 6:14 pm

Re: Software update - unable to set low-cost charging

Thu Dec 28, 2017 2:30 pm

Thanks for the info Jim.
So we just have to hope that the delay charge not working is just a bug in our car and a software "refresh" will fix it, I guess one day they will roll out OTA updates, no dealers involved!

jadnashuanh
Posts: 3841
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Software update - unable to set low-cost charging

Thu Dec 28, 2017 2:41 pm

ladriver wrote:Thanks for the info Jim.
So we just have to hope that the delay charge not working is just a bug in our car and a software "refresh" will fix it, I guess one day they will roll out OTA updates!

Some of the newest models have started to do OTA map updates...it would be convenient if they could also do firmware updates, but so far, BMW seems to feel that's risky, and best left to be done in the dealership. I guess it could get messy if the car was part way through an update and you went in, wanting to drive it, and found it wouldn't go because the s/w was in the update process. When done at the dealership, you've already consigned yourself to the fact that you won't be able to use the car until it's ready and probably have made other travel plans in the meantime. On the map data updates, there's enough room on the HD to store the current release, and the new one, and they only swap after it's fully installed, and the car is turned off. The next time, it reboots (starts), it then swaps to the newer database version. In the case of the many smart modules in the car...they don't have lots of 'free' memory space to enable an updated backup to be made...they essentially disable the functionality, clear the memory, then reflash it with the new stuff so that module can't do anything in the interim.

I don't know what architecture Tesla utilizes...there may be one program to control semi-dumb modules, and essentially only one program to update, so with enough memory, they could do a swap and deal with the OTA updates, but the BMW architecture is distributed, and that is less open to that sort of update process. A hacked OTA map database update isn't catastrophic, but a hacked rewrite of the car's critical systems software has a lot of potential issues. While the security can be decent, it is never foolproof...again, a hardwired connection is a lot harder to hack when the i3 is talking directly to corporate.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

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