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[Crissa]

Yes, all level 2 and fast chargers know if there is a vehicle attached.  It's part of the standard.  The socket tells the plug that it's ready and how much.  DC charging is mostly done by the station unit while AC is mostly handled on the vehicle side.  A DC charger will know how much power is consumed, while not all AC units keep track.

Once the vehicle is done charging, supply drops to a maintenance level.  And then the station knows when it has been unplugged as well.

Some stations even know when a vehicle is parked in them but not plugged, but that's less common (tho with ICEing and parking violations common, that'll be a more common feature.)

-Crissa

[TheRan]

Do they detect that the plug is physically inserted in a socket, or is it an electrical data connection? If it's the latter I can imagine someone using a relay and timer to break the connection. If it's the former then it's time for someone to invent a little robot that suctions to the side of the car and can yank the cord when charging is done.

[Crissa]

No, yes, but if you do that the charging station cuts the power supply.

And that's why they charge parking and new stations are starting to have bollards and sensors in the parking space.

-Crissa

[DonTom]

I have not, I only charge my bike at home at the moment. So are there no stations where you can prepay for a certain amount of energy (or currently time)? Do all stations know that a vehicle is still connected but not charging? What about if a vehicle is set to only charge to a certain amount, once that amount is reached can it disconnect in a way that the station wouldn't be able to detect it?

Yes, you can disconnect at any time.  Either from the vehicle or the "stop charge" on the machine.  Most charge stations know if you're charging. Not all J1772's sense that you're no longer drawing any current., but perhaps most do. AFAIK, all fast DC chargers sense everything.

They all can tell if you're connected, even a J-1772. In the vehicle charger, there s a diode and a resistor that turns on the J1772. It has no power on it until it senses that from the vehicle. In the case of Zero motorcycles, the adapter plug for J-1772 has the diode an resister built in. So it actives even without a motorcycle if the Zero adapter is plugged into a  J1772 with nothing on the other end.

DC charging is more fancy. It usually tells  you the KW you're being charged with and how long you have been connected and other such info.  You can set the vehicle to stop charging at any percentage  you want or hit the "Stop Charging"" button on the charge station.  IRRC with Telsa Spierchargrs, it all must be done from the car or the app.  I don't recall any such buttons on Tesla Superchargers. But I have only used a Tesla Supercharger two times and I am not real sure about that.

-Don-  Barstow, CA (RV)

[DonTom]

I am wondering if I read that incorrectly or if I forgot what year it was. I see now that it says stating in year 2021, so it looks like we will have to wait a while to see how this works out.

-Don- Auburn, CA

[togo]

Do they detect that the plug is physically inserted in a socket, or is it an electrical data connection? If it's the latter I can imagine someone using a relay and timer to break the connection. If it's the former then it's time for someone to invent a little robot that suctions to the side of the car and can yank the cord when charging is done.

Most stations detect the signalling lines, data connection, not physical plug.

[togo]

> I have not, I only charge my bike at home at the moment. So are there no stations where you can prepay for a certain amount of energy (or currently time)? Do all stations know that a vehicle is still connected but not charging? What about if a vehicle is set to only charge to a certain amount, once that amount is reached can it disconnect in a way that the station wouldn't be able to detect it?

Come on, man, you aren't supposed to stay plugged in, occupying the station.  Let other people charge.

[TheRan]

> I have not, I only charge my bike at home at the moment. So are there no stations where you can prepay for a certain amount of energy (or currently time)? Do all stations know that a vehicle is still connected but not charging? What about if a vehicle is set to only charge to a certain amount, once that amount is reached can it disconnect in a way that the station wouldn't be able to detect it?

Come on, man, you aren't supposed to stay plugged in, occupying the station.  Let other people charge.

It's not about hogging the station, it's about not being charged for being in the station once charging is completed. You can't always time getting back to the vehicle as soon as it's finished, which is why a lot of EV owners are fine with other people unplugging their vehicle once it's finished. The thing is if there's no-one there to unplug it and take over you then get charged, whether you're preventing someone else from charging or not.

[Crissa]

Charging stations know if you're using power and how much power you're using.

So if you stop charging, you use alot less power, and consequently get charged less.

But pricing schemes can be based on charging capacity, kwh consumed, per session, per minute, subscription, parking, or some combination of any of the above.

-Crissa

[TheRan]

The original thought was that they'd increase the waiting fee to make up for lost profits from no longer being able to charge by the minute and instead having to charge by the kW/h.

[Crilly]

I cannot unplug my Livewire until one of two things happen. One, it finished charging or two I wave the credit card (I phone) at it to stop charging.

[DonTom]

I cannot unplug my Livewire until one of two things happen. One, it finished charging or two I wave the credit card (I phone) at it to stop charging.

It must be like other EVs, so while charging, do this:
Put in key. Turn on bike.

Above may be all you need to do, but there also could be a menu, or if it's like my Energica, as soon as I turn on the key the screen shows:  "Unlock Charge Port?, press mode to confirm".

It's the norm for them to lock until it is either done charging or stop charging early by using the key.

I am not familiar with the LW, but I will bet the instructions to stop the charge are in your LW Owner's Manual if the above isn't all you need.


-Don-  Reno, NV

[togo]

I cannot unplug my Livewire until one of two things happen. One, it finished charging or two I wave the credit card (I phone) at it to stop charging.

"Fob present to unlock coupler"

per

https://serviceinfo.harley-davidson.com/sip/service/procedure/1332049841313170639/BLAISE/1308558/en_US?uid=1308558&nid=32102

To access the above link, you may need to use a user-agent switcher to tell the website that you are using Firefox on Windows (using Firefox on Linux it told me my browser is out of date, but of course it is microsoft windows that is out of date imho)

[togo]

The original thought was that they'd increase the waiting fee to make up for lost profits from no longer being able to charge by the minute and instead having to charge by the kW/h.

That's a future change, not current.

[DonTom]

I cannot unplug my Livewire until one of two things happen. One, it finished charging or two I wave the credit card (I phone) at it to stop charging.

"Fob present to unlock coupler"

per

https://serviceinfo.harley-davidson.com/sip/service/procedure/1332049841313170639/BLAISE/1308558/en_US?uid=1308558&nid=32102

To access the above link, you may need to use a user-agent switcher to tell the website that you are using Firefox on Windows (using Firefox on Linux it told me my browser is out of date, but of course it is microsoft windows that is out of date imho)

Oh yeah, I forgot the LW uses a FOB. But the same idea, bike must be on.

-Don-  Reno, NV