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Discussion Starter · #1 ·
Hi all,

Having my Mx-30 since one month. On the first long trip 3 weeks ago, I've been unable to charge using Combo-CCS charger. The charge starts then orange LED few seconds after.
Several tests on different chargers with the same result.
Car brought to Mazda for a day, and french "engineers" working on it ... no news since.

Yesterday, I've read a post from "Miko Kowalski" on a Mx-30 Facebook group saying he solved the same problem by reinstalling "My Mazda" app.
My wife and I have both the app on our smartphone. I made a test :
  • Go to the nearest fast charger ( never tried before )
  • Try to fast charge => fail : orange LED, "Charge interrumpted, read user's manuel"
  • Call my wife at home and tell her to unistall the app.
  • Try to fast charge => success, charging at 22kW with 5°C which seems to be acceptable without the latest update.

First time I've manage to charge fast after may be 20 tries on 5 different chargers.

As a software engineer, I have difficulties to understand how the car can charge correctly using wall plug and Type 2 6kW charges ( when the app could interact ) and refuses with fast charge.

So sharing the information. If you are not able to use fast charger due to error at the begining it may help to uninstall or reinstall "My Mazda" app ( haven't tried to reinstall my wife phone app )
 

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So car = OK with wall plug and 6kw (home and away?). You and your wife have the app but only your wife has uninstalled the app but not you to get dc charge working. Is that correct?

As far as I am aware the mazda app does not need to be used for plug in charge scheduled on car or otherwise at home or even away unless you are using remote start or stop.

The app does not need to be used for public charging because that should require its own supplier app.

The app should not ask for status updates I assume unless you ask for them...or perhaps the car app is in contact with the central server when charging status changes and they handshake and monitor status? If the central server does not like the condition presented it causes the error you were seeing. Sounds feasible until you ask surely it is the car that is communicating with the central server not your phone app....

So what involvement does the phone app have with charging other than remote? Perhaps some app thread or function is somehow being maintained and uninstall stops that condition. But again why only dc charging? Strange one but who knows what the Mazda coding is!

I wonder if force stopping the app or rebooting the phone would have the same effect?

Thanks for the info(y)

Alan
 

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As @Thebriggie has stated, this thread raises significantly more questions than it answers 😬

Is it possible that the uninstalling of your wife's app and the subsequent ability to charge are coincidences? You need for her to reinstall the app, then try again on that same charger.
 

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Discussion Starter · #4 ·
Ok, sorry for being unclear.
With the My Mazda installed on both phones :
  • Home charge = OK
  • Type 2 charge = OK
  • CCS Combo fast charge = NOK => charge starts ( green flashing ) then stopps few seconds after ( orange fix + message "charge interrupted, see user's manual" )
( Have tried 5 different chargers, check with phone support, etc )

Uninstalling app on my wife phone :
- CCS Combo fast charge = OK

The sucessfull charge has been done on the same charger it failed 15 minutes ago with app installed on my wife's phone.

Another strange information I had and also read is during my fast charge, the app said "Not plugged, charging" ....
 

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Thank you. That rules out most of the questions I raised.

From what you are saying my immediate conclusion is dc charging is trying to contact the phone app but may not know what phone app to connect to when both owners apps are active. The phone app needs the vin number to work. The dc charger connects to the car and the car sends status to the central server with its vin. The central server sends an update via the app to the phone app but gets its knickers in a twist when it sees two active phone apps with the same vin reference. Does this sound feasible?

If you delete your app and leave your wife with the active app would that also work?

If so maybe the app somehow needs a primary and secondary setting of some kind?

If deleting your app works then perhaps it needs to be raised with mazda as the coding for dc charging may need examined. It may not be designed with two active phone apps for the same car on dc charging.

Apologies if I am talking bull but at least it's out there for consideration!

Alan
 

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Heavy speculation warning as I try to dissect the information we have here:

@sBenj

So the implications here is that there is a central server (run by Mazda?) which both the car and the phone app connect to as in intermediary for communication. This obviously makes sense, as it then allows the phone and car to communicate while being connected to different networks.
The issue would appear to be that the car is unable to distinguish between applications running on different phones, and this makes sense I suppose; Since how does the car decide which phone has priority? So when the car is checking for some kind of confirmation to charge (this that a thing?) from the phone app, it is receiving conflicting messages from the apps running on different phones (HAL 9000 anyone?!).

I'm assuming that your wife and yourself are using Android phones? I ask because the iOS doesn't generally allow applications to run in the background, so they would not be able communicate with the car unless running.
 

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Normally when you are in a 3rd party charging app it is that app that asks for charge confirmation. The mazda app perhaps gets sent an update message to show plugged in charging status. If the central server cannot communicate to the phone app for some reason them perhaps we get this fail scenario. All hypothetical at this moment until we get more data.

Interesting question re ios and Android operating systems but if both home charger or 7kw public chargers can work and communicate to the apps re status does that rule out that difference?

And yes mazda do have a central server, which they have control of, even if it is installed in a 3rd party location. The car has a vin registered on the database of this server. When you set up the app on your phone after the car purchase it needs the vin to handshake with the server user (car) data.

Alan
 

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Normally when you are in a 3rd party charging app it is that app that asks for charge confirmation. The mazda app perhaps gets sent an update message to show plugged in charging status. If the central server cannot communicate to the phone app for some reason them perhaps we get this fail scenario. All hypothetical at this moment until we get more data.

Interesting question re ios and Android operating systems but if both home charger or 7kw public chargers can work and communicate to the apps re status does that rule out that difference?

And yes mazda do have a central server, which they have control of, even if it is installed in a 3rd party location. The car has a vin registered on the database of this server. When you set up the app on your phone after the car purchase it needs the vin to handshake with the server user (car) data.

Alan

So the dangling question from my previous post really is what role, if any, the App has in the charging process. It should be little more than an interface, with the actual user preferences and status stored on the car. The Application should push and pull data to and from the car (via the Mazda server) during its operation, ie it is the active agent, the car should never need to communicate back to the app.
 

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Yes, the phone app can send stop, start charge commands as well as some other user requests heater, defrost etc. And get confirmed status back. There is some communication pushed from the car to the phone app via the server such as charging complete messages, door opened etc. etc. without the app requesting it via the user.

So we have the car communicating with server on one side and the phone app communicating with the server on the other side. Vin = handshake.

The app can request status updates if the user requests. But in reality the phone app should not need to confirm plugged in charging unless the user requests it. So my point is that somehow dc charging maybe trying to send a status message rather than wait for a user request and when it sees two active accounts with the same vin confusion occurs.

All hypothetical as previously stated but fascinating.

Alan
 

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I'm still waiting for Mazda to deliver my MX-30, but when they do I shall be investigating this myself.
 

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I read this re mymazda app

Can multiple devices be connected at the same time?

You can, but not simultaneously. For security purposes, the app will automatically log other devices out when a new one logs in.

So can you also confirm that only one device is logged in at any time? i.e your wife is logged out when the error occurs and only deleting the app on your wife's device cures it?

Apologies for so many questions, just trying to drill down to actual repeatable scenario.

Alan
 

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Discussion Starter · #12 ·
Hello,
I've done another fast charge successfully this week-end, still my wife's app not installed. The charge rate is quite low at 5°C ( around 15kW ) but I haven't got the update yet.
Will try to find time to reinstall the app and try just to disconnect a device during fast charge.

Ben
 

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Ben, did you register your wife using the mazda app as a secondary driver. If so the main driver can turn off certain function's of the secondary. Perhaps turning off some functions might stop the problem.

Again, just worth checking.

Alan 🎅
 

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Discussion Starter · #14 ·
Hello,
Yes my wife is registred as a secondary driver.
I've reinstalled her app.
I've deactivated my app "always connected" as it's easy to log on my phone with fingerprint.
Haven't tested fast charge recently
 

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Discussion Starter · #15 ·
I plan to make a 200km trip next saturday. So I've tested fast charge this afternoon and it seems to work with app installed on both phone but mine not always connected. Charge speed was quite low, 16kW, but I started from 64% and stopped at 72%. It took 10 minutes, temp was 11°C.
 

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Discussion Starter · #18 ·
Just a quick post about my trip : 230km, 75% on highway at 110km/h. Temp 15°C/20°C low wind, sunny, no AC.
A short 10 minutes stop at 45% on 50kW CCS charger gave me 5kWh, 30kW average charge speed, seen 36kW for the first 3 minutes.
Destination type2 charger gave me 58% to get battery back to 100% in 3 hours.
Came back to home with 44% left and an total consumption of 16.3 kWh/100km which is quite lower as expected.
I could have replaced the destination charge by a 15 minutes fast charge but the destination charger was very well located ( 300m from destination ) and didn't cost me extra time.
As far as I played with ABRP, the consumption at 110km/h seems to be 17.7 kWh/100km with mild weather.
Chargers cost me 15€ instead of 5€ of home charge, but gasoline would have cost 25€.

Quite happy MX-30 driver so.
Doing a "trip" with the MX30 is possible, forgetting my first experience mentionned on first post.

The bad is that there aren't as many chargers in France and every charge I've done were using the last available charge port. It was a saturday but not holidays.
I'm wondering about buying an Enyaq 60 to replace my other Car ( VW Touran ) but going on holidays this summer accross France seems to be far much tricky ( Out of order or occupied chargers, etc )
 
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