smkettner
Well-known member
Thanks!TEG said:Yes, it does. See this other picture that Tony postedsmkettner said:Does the vehicle not have pilot signal pins?...
Thanks!TEG said:Yes, it does. See this other picture that Tony postedsmkettner said:Does the vehicle not have pilot signal pins?...
And if this is how robust the SAE J1772 standard is for conducting 30A / 7.2 kW, it doesn't give a lot of confidence in the SAE Frankenplug standard for conducting 50 kW. And I just hope that none of those CHAdeMO connectors melt.drees said:But yeah - if these things are burning up on 30A - imagine what 80A will do!
CHAdeMO has thermal monitoring in the connector housing to spot problems before they occur.walterbays said:I just hope that none of those CHAdeMO connectors melt.
Ingineer said:The "Fix" for the J1772 melting is to also implement thermal monitoring. Apparently the Honda Fit EV has it. It should be a low-cost addition, and I recommend it for any car pulling over 30A.
Ingineer said:The "Fix" for the J1772 melting is to also implement thermal monitoring. Apparently the Honda Fit EV has it. It should be a low-cost addition, and I recommend it for any car pulling over 30A.
It's off until the connector is removed and plugged back in.smkettner said:Will it resart when back in range or is it an error that must be reset manually?
garygid said:Just a few parts could make a circuit to pull the pilot
down to the Error level, so that the EVSE should turn
off the AC Power to the car.
What temperature should activate the over-temp cutoff?
What temperature activates the LEAF Chademo temp-cutoff?
Something like 180 or 200 degrees F?
You'd probably want it a bit hotter than that, but it might take some experimentation to find the ideal temp. Depending on how well the connector conducts heat, you probably want it somewhere between 120-140F as a trigger point - maybe even higher - the connector itself is most likely rated to at least 90C (194F) if not 105C (221F).TonyWilliams said:For the EVSE in my garage, I could just epoxy the thermistor around the perimeter of the "nozzle". I would guess some temp slightly above the hottest it gets in my garage.
garygid said:The power pins come through the socket that is mounted
inside your car. Right between those pins would be
the best place, I suspect.
With some effort, one can see what was done
for the thermal protection on the Chademo socket.
That is the best place to put the protection,
so that the car better protects itself against
the aggressive outside world.
Unless you're in the habit of having lots of guest cars using your EVSE, I'd think protecting the car WOULD protect the house.TonyWilliams said:Yes, the car mounted thermister is the beast place to protect the car. I'm worried about the house.
If I understand this mod, when over temp it will act as if you pressed the trigger, causing the on-board charger to stop drawing current, but will not open the relays in the EVSE? Any worries about compromising weather resistance?Ingineer said:...Now if either of the current-carrying connectors get much over 70C, charging will halt until they cool off, at which time it will resume. This will protect your inlet from catastrophic failure. The resistor insures the car still "sees" the J-plug inserted, but will disable current flow.
-Phil
Enter your email address to join: