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Climate Change

Discussion in 'Randomination' started by SpurMeUp, 23 Jan 2019.

  1. SpurMeUp

    SpurMeUp Nayim

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    Quite a few cars have suspension that can be adjusted - going back to the 1960s. BMW already have wireless charging tech in place. you could also just have a coil that drops when it senses a wireless charger...goodness knows what they do about rain, could it work outdoors?



    Was away this weekend. Managed to charge the hybrid finally. Only had to go to Wales to do it :)
     
    scaramanga likes this.
  2. scaramanga

    scaramanga Ricky Villa Staff Member

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    They could make the M25 a charger - we all spend plenty of time on there.
     
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  3. LemonadeMoney

    LemonadeMoney Jimmy McCormick

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    Surely in time, the speed humps could be electrical rather than physical?
     
  4. Lilbaz

    Lilbaz Terry Fenwick

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    With evs being so heavy, they might have to get rid of speed bumbs altogether.
     
  5. scaramanga

    scaramanga Ricky Villa Staff Member

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    Or just not there as they cause people to accelerate and brake heavily all the time.
     
  6. Bullet

    Bullet Tom Huddlestone

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    I notice that video says to "switch off the engine" and "when you switch off the ignition wireless charging automatically begins".
    It should just work regardless. What if you are in sub zero temperatures waiting somewhere and want to remain in the car whilst it charges?
    There isn't an engine to switch off, and there is no ignition, nothing to ignite, do not ignite your batteries people.
     
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  7. SpurMeUp

    SpurMeUp Nayim

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    I tried turning on the engine/car for that reason this weekend, while it was charging in a Tescos car park. But it wouldn't let you while charging (fwiw the heating does switch on even when the car is 'off'). These hybrids are complex cars. The petrol cap is pressurised. You can't just press it to open - which you can the electric charger on the other side. I guess with all that electricity flying about, they have to protect the combustible fuel more carefully.

    Idk how EVs produce heating - whether they use battery heat to warm the cabin like ICE cars use a hot engine to heat air.
     
  8. Rorschach

    Rorschach Tony Galvin

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    EVs use battery power to heat and cool the cabin.
     
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  9. LemonadeMoney

    LemonadeMoney Jimmy McCormick

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    I was told you will invariably see EV taxi drivers wearing two coats in the winter, as it is so draining/expensive to have the heating on.
     
  10. Rorschach

    Rorschach Tony Galvin

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    It certainly does drain the battery faster having the air con on. At a guess, it might run it down say 5% faster but it is hardly going to incur much of a cost in comparison to petrol prices. I have a feeling whoever told you that was exaggerating a bit.
     
  11. Lilbaz

    Lilbaz Terry Fenwick

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    I know a black cab driver who has an electric one. Absolutely loves it. Never mentioned anything about the cold.
     
  12. LemonadeMoney

    LemonadeMoney Jimmy McCormick

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    Apparently aircon is fine, heating is the issue.
     
  13. Rorschach

    Rorschach Tony Galvin

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    Sorry thats what I meant - heating and cooling. When I turn either on it shows a drop in projected range by a few kilometers. It is not a big deal and will be even less so as the batteries improve.
     
  14. Gutter Boy

    Gutter Boy Tim Sherwood

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    Petrol is exactly the same. Rev counters visibly jump when you switch the AC on, which is effectively the same. Some people don't even wind down their windows, to keep their fuel efficiency high. It's all fairly negligible in the grand scheme though
     
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  15. Bullet

    Bullet Tom Huddlestone

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    Ironically I read an article that stated a company is working on a way to charge an EV in 5 minutes, the current problem is the huge heat generated when sending that much electricity down a small cable... so their patent is to dissipate the heat with water in the casing of the cable itself... which sounds very wasteful to me i.e. we are trying to generate electricity and transfer the energy but... all that extra heat energy generated will need to be dissipated. Especially wasteful in winter.
     
  16. scaramanga

    scaramanga Ricky Villa Staff Member

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    That heat would be dissipated anyway wouldn't it?

    The total energy produced in the form of heat is related to the total charge sent to the car. It's just hotter because it's compressed into a smaller space of time.

    The water could just be air cooled using a pump which could be solar powered. Shouldn't be too wasteful on the face of it.
     
  17. Bullet

    Bullet Tom Huddlestone

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    You're not wrong, it just seems ironic since we were talking about the idea of sitting in your car whilst it was charging, with the heater on to keep warm whilst you wait for the damn thing to charge... yet outside the car they are trying to dissipate the heat building up. Sounds like the charging cable should wind it's way through the cabin and dissipate the heat in there instead.
     
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  18. Lilbaz

    Lilbaz Terry Fenwick

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    And if you didn't want the car to get warm?
     
  19. Rorschach

    Rorschach Tony Galvin

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    Open the window.

    Sorry, this is a silly conversation about wires warming up. If cooling a warm wire (oh er missus) is the price of fast charging then so be it. There is waste heat everywhere - the hot water that runs down the drain after a shower, outside heaters, the back of your fridge, farting. Some of it can be captured and reused and some can't (heat not farting).
     
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  20. Lilbaz

    Lilbaz Terry Fenwick

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