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by Aerowhatt
Mon Sep 25, 2017 8:12 am
Forum: Modifications & Accessories
Topic: Solar-powered interior cabin heater?
Replies: 10
Views: 1584

Re: Solar-powered interior cabin heater?

I think that a south-facing parking spot with clear sky views is the best idea thus far. The interior is dark enough that I wouldn't expect any added black material to make much difference. This is the best option for solar heating. To greatly increasing the effect fabricate some custom insulation ...
by Aerowhatt
Wed Aug 23, 2017 8:10 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Weird AC behaviour while fast charging
Replies: 16
Views: 864

Re: Weird AC behaviour while fast charging

That's interesting... The screenshots I took and posted above also indicate 7°C difference. Next time I use a DCQC I'll take some screenshots as well, or maybe even record the screen. What I don't understand is why you say that from a longevity standpoint the pack should not have great differences ...
by Aerowhatt
Wed Aug 23, 2017 7:54 am
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Weird AC behaviour while fast charging
Replies: 16
Views: 864

Re: Weird AC behaviour while fast charging

I've had up to 12ºC diference in cell temperature. I had some cells near 42ºC and others at 20ºC. My A/C never stopped during AC, so it could be something more specific to the newer models (since both my C-zero and Malm's imiev are 2011 model year.) We do know that they have changed the firmware al...
by Aerowhatt
Wed Aug 23, 2017 7:47 am
Forum: General Technical Discussions
Topic: Widening Takata airbag recall
Replies: 32
Views: 3078

Re: Widening Takata airbag recall

That certainly sounds suspicious! It may be possible to just replace inflator cartridge without replacing the entire airbag? I can't imagine any mechanic that would do that without removing the entire airbag unit from the car first. That would certainly markup the dust on your dash. I certainly woul...
by Aerowhatt
Thu Aug 03, 2017 6:55 pm
Forum: Instruments - Radio/USB/Nav - CAN - Climate Controls - Remote
Topic: Weird AC behaviour while fast charging
Replies: 16
Views: 864

Re: Weird AC behaviour while fast charging

I have seen the same behavior from the AC during DCQC. From watching individual cell temps on Canion I think it has to do with the disparity between cooler and warmer cells. As we know the cell cooling is far from uniform in the pack. Seems that my AC shuts down when the difference between the warme...
by Aerowhatt
Thu Jun 29, 2017 5:12 pm
Forum: Modifications & Accessories
Topic: Passive cooling ?
Replies: 102
Views: 16442

Re: Passive cooling ?

[i]The cabin blower can work well for this if it is run at mid speed and no higher. Doing so with the key on isn’t practical since it runs a bunch of other systems (unnecessary wear and tear) pulling more than 7 amps total. 7 Amps? Measured where? If I check Canion when car is in ACC, the current d...
by Aerowhatt
Sun Jun 25, 2017 10:12 am
Forum: Modifications & Accessories
Topic: Passive cooling ?
Replies: 102
Views: 16442

Re: Passive cooling ?

So, obviously leaving the key on all night every night and supplementing the 12 volt system with a battery charger is not a long term solution but the data from doing it leads to one. I did that all night ventilation on my wife’s car and it had an uncharacteristically long charge cycle needing 12 ba...
by Aerowhatt
Fri Jun 23, 2017 10:38 am
Forum: Modifications & Accessories
Topic: Passive cooling ?
Replies: 102
Views: 16442

Re: Passive cooling ?

If you say the 12V battery is charged during L1 or L2 charging, then a possible solution would be to leave the cabin blower on during charging and have an EVSE with ajustable output (6A to 14A, for example). If you have a general idea of how much %/hour it charges at each speed, you can set it up s...
by Aerowhatt
Thu Jun 22, 2017 11:26 am
Forum: Modifications & Accessories
Topic: Passive cooling ?
Replies: 102
Views: 16442

Re: Passive cooling ?

Actually, once I turn the AC to the battery, I always get some cold air on my feet. More than I would like, too. The vents are not 100% sealed. That's interesting, On my car it is a very good seal. No discernible airflow out of the floor vents when in Battery vent mode. It's hitting 105 F here toda...
by Aerowhatt
Thu Jun 22, 2017 11:06 am
Forum: Modifications & Accessories
Topic: Passive cooling ?
Replies: 102
Views: 16442

Re: Passive cooling ?

The thing to watch for when trying to run the pack fan is that the cabin HVAC has the battery damper flipped and the vents set to the floor. Otherwise, you're not going to get much airflow through the pack. A good reminder. I assumed anyone deep into this thread would remember that, but likely a re...

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