Monitoring HV battery temperature sensors temperatures.

Thanks for the experimentation. Sometimes I drive with all windows down on dry hot days in city. I wonder how this impacts the battery temp. I need to check that.
BTW, I never use recirc setting. I see no point in breathing stale air. I actually modified the settings and recirc isn't a default anymore when AC is turned on.

 

What about driving 30 mph (50 kmh) in the city? What are the temps like doing that on a longer period? You know what I'm getting at here. Get the car warmed up nicely and then drive rush hour for 2 hours and see how the temps are then.

 

great info, thanks feri! mine defaults to recirc, but after teh cabincools a bit, i switch to fresh. i have to keep my eye on it tho, it switches back every now and then. luckinly, we don't often see temps over 100.

 

Not that often, but in a RHD the passengers would sit on the passenger side. On a LHD that could be a problem as they'd more often block the vent. Also, and similar to Oz here, but most individual male or younger female passengers sit in the front, with individual older women and couples sitting in the back. If the vent was blocked in the back, the battery would sit steady at 7/8 bars for some reason.

No I don't believe cabbies will have recirc on - you want fresh air in your car! Often a/c doesn't work so well in start stop traffic on short journeys as all doors are opened and left open when passengers get in, then the a/c has to work double hard to cool the car on the journey, 2 minutes later they're all getting out with all doors wide open again! Often it's better not to use a/c in town in summer, but just have the windows down. I only used a/c if someone complained their hair was blown around or on a run that I knew would be over 1 mile. Might be different in Australia where it gets HOT.

 

I have found that it also helps to cool the battery when one or more of the dashboard vents are aimed up over my head and towards the right rear door where the battery ventilation intake is located. I usually have at least one vent aimed at the battery air intake during highway driving, and at least two during city or mountain driving in warm weather.

 

Is number 3 sensor always the highest? I need to know because my Scangauge II will only monitor 4 things at once, so I would like to only dedicate 1 of those slots to the battery temp, and would naturally choose the hottest bank of cells to monitor.
Would you happen to also know whether the upper inverter coolant loop temp or the lower coolant loop temp would be the best one to monitor?
Thanks in advance!

 

It's one of the settings that can be changed by TIS/Techstream software.