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20th Century Thermostat, Really Elon?

Discussion in 'Software: Firmware Updates, Features, Tesla App' started by Smitty79, Feb 28, 2021.

  1. Smitty79

    Smitty79 Member

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    I have had thermostats in my home, that could handle different heat to and cool to setting, since 1995. I set the heat to setting at 68 and the cool to to 72. When I drive my Model 3 on cool sunny days, the car stays warm from the sunshine unless I go through a valley or some forest while I'm in the shade. I'm constantly trying to adjust the environmental when I do road trips through woods and mountains here in Oregon. I even went so far as to have 2 profiles to adjust.

    This is a very simple software fix. It could even be set up in settings to minimize the use of default screen real estate.

    Come on Tesla, do some tech.
     
    • Like x 1
    • Disagree x 1
  2. GtiMart

    GtiMart Member

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    I believe the two temperature thermostats are a byproduct of a system that cannot keep a temperature efficiently. You wouldn't want to heat your house in summer to get back up 0.5 degrees, to start cooling 5 minutes later. The car is more efficient, it's a smaller area to manage, and it can play with outside air to adjust temperature. I don't think two temperatures are needed.

    Now if the car isn't doing its job properly that's another issue. I also feel I need to play with temperature a bit while I drive and wish it would handle things better.
     
  3. arghx7

    arghx7 Member

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    I use almost the same setting year round... that’s why it’s automatic climate control
     
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  4. qdeathstar

    qdeathstar Active Member

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    Yea, you just need to set the system to auto... you of course might feel warmer when your are in the sun vs in the shade but that is due to radiation not the actual temperature
     
  5. bay74

    bay74 Member

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    I want two temperature setpoints so the dumb thing doesn’t turn the heat on on a cool but perfectly acceptable 17°C morning. I’m constantly switching between LO & AC off & fresh air, and 21°C with AC in Auto mode. I don’t want heating to come on for a few minutes and then have it switch to cooling as soon as we’re in the sun. Ugh.
     
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  6. Smitty79

    Smitty79 Member

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    This.^ I'm also OK to live at 68 F or 72 F, to get a little more range. I do it in my home to save energy, why not my car?
     
    • Like x 2
  7. Candleflame

    Candleflame Active Member

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    #7 Candleflame, Feb 28, 2021
    Last edited: Feb 28, 2021
    The car cant really cool without using the heatrer. It achieves temperature via a combination of cold and hot. Its not really a cooling system its an air conditioning. I.e. if its 21c but the car needs to dehumidify the air it has no choice but to warm up the cooled air.
     
    • Like x 1
  8. Cosmacelf

    Cosmacelf Well-Known Member

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    Do you guys drive often drive so close to the range limit that this matters? Sounds like you are stressing over something that doesn't really matter.

    I just leave it on auto and thumb up/down the temperature depending on my personal needs (like before lunch when I'm hungry, I'll want it warmer, but after playing pickleball, I'll want it a lot colder).
     
    • Love x 1
  9. bay74

    bay74 Member

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    I'm an engineer, and it's inefficient. I can't handle it sorry. :)

    Also we worked to reduce our house energy consumption to about 3kWh per day so the car wasting energy annoys me.

    Candleflame mentioned "if the car needs to de-humidify"; how does it determine this? I'd like to understand when the stupid heater might be used, as I remember reading here somewhere that setting thermostat to eg 25 in warm weather might use more power than set to eg 20 because the former might involve reheating the air (with the resistance heater!). This would be totally counter-intuitive to me because cooling a lesser amount should use less power (heat pump basics). So I'd want to know when it's going to do this dehumidification (cooling well below set point and reheating).

    And yes with a SR+ in Victoria where there are huge areas with no DC chargers it's not entirely academic.

    Cheers!
     
  10. Candleflame

    Candleflame Active Member

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    there was a good post on this here before. its not really possible to have an AC system without heater. you migth have a cooling system, but it wont be a good one.
     
  11. Candleflame

    Candleflame Active Member

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    yes. frequently. just no superchargers around here.
     
  12. GtiMart

    GtiMart Member

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    If you insist, you could put the climate control in manual, turn the AC off and set the temperature to your low "heat" setting. If it eventually gets too hot, switch back to automatic. On those nice 17C mornings you'd be fine :)
     
  13. Needsdecaf

    Needsdecaf Member

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    This is the first car of many that I have owned with automatic climate control. Not a single other one have I had to consistently change the temperature set point for heat vs. cool. It's always the same. If heating, set to 69. If cooling set to 72.

    Really odd.
     
  14. Ldub22

    Ldub22 Member

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    And the First World problems continue …

    “I can’t believe Tesla doesn’t do [insert something that no car has ever done, EVER]! C’mon Tesla!”
     
  15. newowner

    newowner New Member

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    Living in a cold area with a range-busting commute, I will often open the temp cluster and either turn off, or turn off “auto” and set the fan to 1. This seems to boost my range significantly. The only thing is sometimes I forget to turn it back on auto a few days later and wonder why it is so cold in the car.
     
  16. Smitty79

    Smitty79 Member

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    Tesla does all kinds of "grooming" in software to get small range increases. I bet this would get me a measurable range increase on the 600 mile road trip I do frequently.

    I also like bay74's comment: "I'm an engineer, and it's inefficient. I can't handle it sorry."

    This change would be near free to Tesla and would incrementally improve the performance of out cars.
     
  17. XLR82XS

    XLR82XS D M C

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    Amen. I'm set to 75F year round - even in S. Florida summers. No HVAC operational issues.
     
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