Umc 2.0

[zdre]

I think the charge door should be able to open with any Tesla connector. The connector should be able to be inserted at any time, but removed only when the car is unlocked. This will make it possible for someone else to start charging the car while preventing disconnects and theft.

To make it even more convenient, the stationary chargers (e.g. HPTC2) could unlock the latch when charged (or at specified SOC), allowing the next person to charge, while the portable connectors would stay latched to prevent theft.

 

[TEG]

To make it even more convenient, the stationary chargers (e.g. HPTC2) could unlock the latch when charged (or at specified SOC), allowing the next person to charge, while the portable connectors would stay latched to prevent theft.

Yep - that makes sense.

 

[Doug_G]

The new UMC 2.0 introduced alongside the Model S betas probably deserves its' own thread.

There's another thread with the exact same title under Tesla Model S (WhiteStar)... maybe these should be merged?

 

[TEG]

There's another thread with the exact same title under Tesla Model S (WhiteStar)... maybe these should be merged?

Yeah, I know - I pointed that out and suggested that the titles be renamed to separate them...
Edit: Moderator decided to merge anyways. C'est la vie.

 

[doug]

Related other thread: Umc 2.0
(Although I don't think they should be merged as this is more of a general purpose thread, not asking a specific question.)

Doug, can you rename this thread "UMC 2.0 adapter signaling" or somesuch as I recently started a general purpose "UMC 2.0" thread with the same title...

( General thread: Umc 2.0 )

I think they both ended up being general purpose threads. So I went with the merge for now.

 

[smorgasbord]

[Moderator's note -- moved from here: Model S Design Studio at Menlo Park]


They also had a Model S UMC there. Here's the plug end (NEMA 14-50):

Note that the end piece comes off (there's a button to press to unlock it), and here are the pins:

I believe the idea is twofold:
1) These plug adapters will be cheaper than the equivalent Roadster UMC pigtail
2) The pins can tolerate many more insertion cycles than the 14-50 outlet can handle

 

[jcstp]

They also had a Model S UMC there. Here's the plug end (NEMA 14-50):

View attachment 4717

Note that the end piece comes off (there's a button to press to unlock it), and here are the pins:

View attachment 4718

I believe the idea is twofold:
1) These plug adapters will be cheaper than the equivalent Roadster UMC pigtail
2) The pins can tolerate many more insertion cycles than the 14-50 outlet can handle

Is this 3 phases and one earth?
If yes, adapting it with a european 3 phase plug is going to be easy!

 

[smorgasbord]

Is this 3 phases and one earth?

No, it's single phase with one neutral and one ground.

 

[doug]

Assuming multiple plugs are to be available, did you ask how Tesla is coding them so that the EVSE sets the proper current limit?

 

[Doug_G]

It wouldn't necessarily be visible. Could be anything from RFID to a pattern of magnets inside the connector.

 

[doug]

True, as we discussed above. Curious what solution they chose.

 

[zdre]

Note that the end piece comes off (there's a button to press to unlock it), and here are the pins:
View attachment 4718

Looks like there is a small pin for communicating the type of plug to the UMC. There may be something as simple as a resistor between this pin and the ground. Different resistance would correspond to different types of plugs. Just a guess.

 

[TEG]

Removing and inserting the NEMA14-50 module:

(Very nice!)

 

[gg_got_a_tesla]

Dumb question: I don't see myself having to unplug the UMC at all from the 14-50 outlet in the garage; I'd not take it with me in the car as I'd rarely drive long enough distances that I'd need to juice up on the road.

So, if I were to leave it plugged into the wall outlet but, unplug the other end from the car, is the UMC still sucking electricity? Like mobile phone chargers continue to do even if the phone's not plugged in at the other end?

 

[TEG]

Dumb question: I don't see myself having to unplug the UMC at all from the 14-50 outlet in the garage; I'd not take it with me in the car as I'd rarely drive long enough distances that I'd need to juice up on the road.

So, if I were to leave it plugged into the wall outlet but, unplug the other end from the car, is the UMC still sucking electricity? Like mobile phone chargers continue to do even if the phone's not plugged in at the other end?

Possibly a very small trickle. One of those phantom/vampire loads you get from a lot of equipment when it is not in use.
If it really mattered you could have an electrician put a switch on the outlet.

 

[gg_got_a_tesla]

Possibly a very small trickle. One of those phantom/vampire loads you get from a lot of equipment when it is not in use.
If it really mattered you could have an electrician put a switch on the outlet.

Cool, thanks, TEG. A switch, there will be!

 

[richkae]

Standard switches are only rated for 15 or 20 amps. I would be interested to see what switch the electrician proposes. The easiest thing will probably be an RV style box with a 50 amp circuit breaker right next to the outlet.

 

[gg_got_a_tesla]

Standard switches are only rated for 15 or 20 amps. I would be interested to see what switch the electrician proposes. The easiest thing will probably be an RV style box with a 50 amp circuit breaker right next to the outlet.

Thanks, Rich. Will explore this too.

 

[vfx]

I've seen public Blinks with power box next to them with a big red side mounted pull arm switch. cycling that switch it was the only way to get then to work actually)

 

[Lloyd]

Cool, thanks, TEG. A switch, there will be!

I have a switch rated at 100 amps (used) I will sell you cheap. $25 Left over from a solar install.