Cabin Overheat Protection

[David L]

Temperatures of 140F are relatively low in the world of electronic circuits. Chips for consumer electronics are usually designed for ~100C (212F) and automotive components are usually designed for even higher temperatures. Circuit degradation also generally doesn't happen unless the circuit is powered on. Therefore, the electronics are probably the last thing you should worry about.

 

[slipnslider]

Temperatures of 140F are relatively low in the world of electronic circuits. Chips for consumer electronics are usually designed for ~100C (212F) and automotive components are usually designed for even higher temperatures. Circuit degradation also generally doesn't happen unless the circuit is powered on. Therefore, the electronics are probably the last thing you should worry about.

What about adhesives that do stuff like holding the glass on the screen?

 

[Mazari4life]

Yeah, I get that. I guess I should have said human-survivable. My kids are old enough to get themselves out and I don't travel with pets so I'd still like to have an option to disable the feature since I've already been in one situation where I needed to leave the car in the heat for an extended period of time 115 miles from the nearest Supercharger and needed to conserve as much range as possible for the return trip home. It's a toggle on the Model S so I'd be kind of surprised if it's enabled on the Model 3 without a similar toggle.

You can disable the feature.

 

[Rockster]

This needs to be weighed against the extra use of the air-conditioner compressor and whether the cost of this out weighs the cost of any electronics you are saving.

True. There is no free lunch!

 

[bolton2160]

What temperature does it keep the cabin when it is turned on?

Just using the Overheat Protection over 105 degrees. I don't think you can adjust what it cools down to. I am curious what it does cool down to. If it gets 106 does it just cool to 105 and shut off? Or does it kick on for a standard length of time?

 

[SMAlset]

While my husband went for his test drive of a Model 3 recently I asked him to check out the Cabin Overheat Protection. We have it in our Model S and use it all the time. Should be getting my Model 3 in the next few weeks and since we live in a somewhat hot inland area really wanted to know it was available. Here's what it looks like on the Model 3 and find it under Safety and Security.

 

[insaneoctane]

I have mine enabled but with the no AC setting. I saw 112 in cabin temperature. But I didn't notice a big mileage loss. I will look at my data for exact numbers....

 

[ebmcs03]

Mine is enabled but I still constantly see 114 in the app when I look.

 

[insaneoctane]

Didn't make it within the 60 minutes... .

EDIT : Here's my data....
Essentially no loss for the first 3 hours because it didn't kick in
Then lost 4 miles of range over 4 hours of non-AC protection.
Cabin stayed at approximately 108 F (except spike of 114F)
Yellow = range
Blue = inside
Red = outside

08-16-2018    9:17:48    69.8    81.5    194.81
08-16-2018    11:47:52    99.86    84.2    194.81
08-16-2018    12:02:55    103.1    83.3    194.39
08-16-2018    12:17:59    105.62    84.2    194.39
08-16-2018    12:33:02    107.42    85.1    193.97
08-16-2018    12:48:03    106.88    85.1    193.12
08-16-2018    13:03:06    107.06    86    192.7
08-16-2018    13:18:07    107.96    86.9    192.7
08-16-2018    13:33:29    108.32    87.8    192.28
08-16-2018    13:48:30    108.68    87.8    192.28
08-16-2018    14:03:35    108.86    87.8    191.43
08-16-2018    14:18:40    108.68    88.7    191.43
08-16-2018    14:33:41    108.14    86    191.86
08-16-2018    14:48:42    108.5    89.6    191.01
08-16-2018    15:03:44    108.14    89.6    191.01
08-16-2018    15:18:47    106.7    90.5    190.59
08-16-2018    16:03:48    114.98    90.5    190.59
08-16-2018    16:18:49    101.66    86.9    190.17
08-16-2018    17:03:51    70.16    85.1    187.22

Sorry for the crappy presentation but I am on my tablet....

 

[Mazari4life]

Didn't make it within the 60 minutes... .

EDIT : Here's my data....
Essentially no loss for the first 3 hours because it didn't kick in
Then lost 4 miles of range over 4 hours of non-AC protection.
Cabin stayed at approximately 108 F (except spike of 114F)
Yellow = range
Blue = inside
Red = outside
View attachment 326441

08-16-2018    9:17:48    69.8    81.5    194.81
08-16-2018    11:47:52    99.86    84.2    194.81
08-16-2018    12:02:55    103.1    83.3    194.39
08-16-2018    12:17:59    105.62    84.2    194.39
08-16-2018    12:33:02    107.42    85.1    193.97
08-16-2018    12:48:03    106.88    85.1    193.12
08-16-2018    13:03:06    107.06    86    192.7
08-16-2018    13:18:07    107.96    86.9    192.7
08-16-2018    13:33:29    108.32    87.8    192.28
08-16-2018    13:48:30    108.68    87.8    192.28
08-16-2018    14:03:35    108.86    87.8    191.43
08-16-2018    14:18:40    108.68    88.7    191.43
08-16-2018    14:33:41    108.14    86    191.86
08-16-2018    14:48:42    108.5    89.6    191.01
08-16-2018    15:03:44    108.14    89.6    191.01
08-16-2018    15:18:47    106.7    90.5    190.59
08-16-2018    16:03:48    114.98    90.5    190.59
08-16-2018    16:18:49    101.66    86.9    190.17
08-16-2018    17:03:51    70.16    85.1    187.22

Sorry for the crappy presentation but I am on my tablet....

Where and how did you get the data from?

 

[insaneoctane]

Where and how did you get the data from?

I pull logs via API for my records. I'm sure TeslaFi or the other 3rd party apps can do something similar.

 

[Gavyne]

Mine is enabled but I still constantly see 114 in the app when I look.

Worth noting cabin overheat protection only works for the first 12 hours after you exit your car. It's meant for temporary protection in case you leave a human or animal in the car by accident.

 

[insaneoctane]

Here's a cleaner graph now that I'm on my laptop. It does a better job of showing actual datapoints. Also 2nd axis....You can see how the COP quickly changes the slope of the interior temp once it engages at 100F

 

[G78M3]

When COP engages as “fan only”, does it simply recirculate inside air? Or is smart enough to pull fresh outside air in and somehow “exhaust” hotter inside air? If so, anyone knows how the hot air is exhausted?

 

[ebmcs03]

Worth noting cabin overheat protection only works for the first 12 hours after you exit your car. It's meant for temporary protection in case you leave a human or animal in the car by accident.

Def less than 12 hours. It’s only during my work hours 7-5

 

[Seth2020]

I know this is a zombie thread, but for any future Model 3 owners that arrive here.

Cabin Overheat Protection
The climate control system can reduce the
temperature of the cabin in extremely hot
ambient conditions for a period of up to
twelve hours after you exit Model 3. Touch
Controls > Safety & Security > Cabin Overheat
Protection and choose:
• OFF: Disable Cabin Overheat Protection.
• NO A/C: Only the fan operates when the
cabin temperature exceeds 105° F (40° C).
This option consumes less energy but the
cabin temperature may exceed 105° F
(40° C).
• ON: The air conditioning operates when
the cabin temperature exceeds 105° F
(40° C).
Note: Cabin Overheat Protection operates
only when the energy remaining in the Battery
is above 20% .

 

[G78M3]

Actually I was thinking about this thread yesterday. With the quarantine it could be several days of the car parked without moving, but I only get COP for the first 12 hours then nothing. It would be ideal for the 12h limit to only apply when not plugged in.

 

[Mr X]

I turned it off on mine. I've noticed my battery draining slightly less. My battery really doesn't drain much at all now