Hi pintohooThere might be a small misconception on your part...

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Penny Pincher

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14/06/23

10:16

Post #: 68274765
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Originally posted by pintohoo: ↑

I didn't think that power loads were the real driving force in previous years to go to 24 or 48 volt

I thought it was just the massive amount of gadgetry in modern cars compared to the technologically light cars of the 50's etc.

eg. in a 1950 car - you might have had one piddly interior light - whereas in modern cars - you can get an enormous number of interior lights - I don't know how many - one car I had from memory had about 22 ------- but, some of the luxury models could top that at a guess

they all need little copper wires to make the bulb glow - and that's where the point was - the weight of the copper

so, instead of running 12 volt - run higher voltages and drop the wire size.

Now of course - we do have massive loads in EV's - the battery to motors - can't do that with a .5mm wire, - so, I guess it makes far more sense now to move to 48 volt - because we still have a load of interior lights and stuff - plus a huge load to drive the things

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Hi pintohoo

There might be a small misconception on your part when you write:

"Now of course - we do have massive loads in EV's - the battery to motors - can't do that with a .5mm wire, - so, I guess it makes far more sense now to move to 48 volt - because we still have a load of interior lights and stuff - plus a huge load to drive the things"

EVs have two batteries. The "....huge load to drive the things" is a 350V battery in the Tesla Model 3.

The 48V battery discussed would be the 12V battery equivalent in ordinary ICE cars to power everything except the power train - i.e. headlights, audio, cameras, touch screen, etc
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