The Leaf most definitely has HV Isolation detection. I got one of the
first 2011's, and I tested it. Not sure where it's located, but I would
guess inside the BMS. I am not aware of any non-isolated charging
happening. The Leaf's OBC is definitely isolated, as are all modern
production EVs.
Phil,
The Leaf has a self-contained BMS that does not care about isolation,
it simply works and is readable from CAN bus.
Sure, before the Leaf will accept a connection to its battery, it is
likely that the inverter does a ground fault check but typically
during charging it cannot (to allow
Yes, but if you wanted to make your own CCS or Tesla jumper "suitcase", you
wouldn't be able to do that without cooperation from the vehicle BMS. I'm
talking about what's possible to make this operate without hacking into at
least one of the cars.
For example, I could hack my Tesla (with a
Since the charging sequence has a fixed order of control, it should be
possible to avoid one vehicle's isolation check to fault the other
one.
The "sending" vehicle can do the isolation check before the charging
is started, while contactors are still open, then the connection is
made, then the
Thanks Lee, But keep in mind without galvanic isolation on this, (or
vehicle support from the manufacturers) it would likely instantly trip the
HV isolation detection on one or both EVs. So the magnetics have to handle
the full power being transferred, not just the difference.
Basically the
My PGP public key: https://vanderwal.us/evdl_pgp.key
October 24, 2021 6:19 PM, "Haudy Kazemi via EV" wrote:
> I think an onboard inverter-charger would be the way to go for this kind of
> thing. I'm not sure how much size/weight penalty there is (if any) for a
> bidirectional inverter charger
I think an onboard inverter-charger would be the way to go for this kind of
thing. I'm not sure how much size/weight penalty there is (if any) for a
bidirectional inverter charger design vs charger-only design.
Tesla has onboard 240v 48a AC chargers on most of their vehicles. If those
were
Don't believe everything you read! Definitely not possible to do this
without some sort of high-power buck/boost converter in-between the EVs.
Even a 50kW capable unit is going to probably weigh 50lbs minimum even if
built very well.
On Sun, Oct 24, 2021 at 8:42 AM Peter VanDerWal via EV
Stumbled across this article:
https://www.motortrend.com/features/how-to-flat-tow-recharge-electric-vehicles/
which had an interesting comment:
"...the Rivian R1T and R1S, Lucid Air, and Ford F-150 Lightning all offer
bi-directional charging and a cord with a CCS Combo 1 charging plug on both
