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serkri / SmartEVSE-3

Smart Electric Vehicle Charging Station (EVSE)
MIT License
72 stars 27 forks source link

Current limit with i4 #154

Closed deekoowee closed 1 year ago

deekoowee commented 1 year ago

Smart EVSE current limit setting do not work with i4, car is overriding that. The owner's handbook says, that car will set the charging current as charger has informed. Seems, that car don't 'underestand' the charging current limitation data from Smarts EVSE. Any ideas ?

dingo35 commented 1 year ago

Sounds like operator error, please be more clear on which settings give what results, preferably with telnet log.

deekoowee commented 1 year ago

Here's short log evse.log Lot of errors...

In Normal mode, changed the charging current at SmartEVSE webpage, doesn't change the charging real current at car. First, I have 6A and set it to 10A, but car's dashboard still says 6A.

Found, that SmartEVSE do not actually change the charging current before I set it off, set new current and set it back on. So, changing of the charge current is not possible 'on fly'

Another finding; Car have set 'unlock charge port automatically, when charging has stopped' However, that do not work. Seems, that car do not get unlocking info from SmartEVSE, when the charging has stopped. I have to unlock the car's charging port manually.

dingo35 commented 1 year ago

You dont understand how charging works: the EVSE gives the Maximum current that the EV can draw, but the EV decides how much it is going to take.

It is very well possible that your car decides on another current when you restart the session.

Please read up on EV electric charging principles before posting bug reports.

deekoowee commented 1 year ago

So, the errors in log are caused because I don't understand

dingo35 commented 1 year ago

No problem, we all have to learn. But if you see strange stuff, read up on it, dont immediately start posting. This is not facebook.... :-)

arpiecodes commented 1 year ago

So, the errors in log are caused because I don't understand

There are no errors, its displaying Error: 0 as part of the debug output meaning there's in fact no error currently.

Also; I see IsetBalanced: 6.0 A which means the EVSE is setting the limit at 6A.

Having said that, there could very well be situations that may not work as you expect. In such case, best to document them as best you can with instructions how to reproduce and include as many details you can. In this case the issue you opened seems to be indicating the car is not listening at all to the EVSE's current limit - later we read it only does this when you try to override the current again, with the car sticking to the last override. Which is something else entirely.