Being one of the expensive metals it is a major cost.
Being a heavy metal it is a major cost. Battery cables are not thin.

It is the whole ball of wax to consider. And modules don't run on 350v.
Likely there are various voltages already. Proper power is a complex
subject. It isn't just weight or voltage.

This is getting far from wood working and should limit itself.

Martin

On 1/16/2017 11:48 PM, J. Clarke wrote:
In article ,
says...

Consider the cable sizes. For a given power, the higher voltage is
smaller copper and thus lower weight.

If you already have 350v on board where's the
benefit for 48?

And for a non-hybrid what percentage of the
weight of the vehicle is electrical wiring? And
of that weight, how much is copper conductors
and how much is connectors, insulation, mounting
brackets, and whatnot?

And even the people trying to sell 48v don't
claim that it will do away with 12v--48v is
going to be an _additional_ electrical system.

Martin

On 1/15/2017 7:18 AM, J. Clarke wrote:
In article ,
says...

On 1/7/2017 1:39 PM, Leon wrote:

Today "safe" is considered to be around 12V. I can't think
of any situation where you'd consider 110V to be "safe",
unless you're comparing it to something like 1200V.

"Safe" is considered to be anything less than 52V. There was once
talk about the automotive industry moving to a 48V battery. The
reason for 48V was that it was just below the "safe" limit. Of course
it never happened because it would have caused more problems than it
solved.



When was that talk? No doubt, there is always something in the air but
I never read or heard of that back when I was in the automotive business.

I'm sure it was intended to help make vehicles lighter in weight.



Coming soon, evidently


Not every electrical component will switch to 48-volt. Lights, radios,
electric windows and door locks, for example, would stay 12-volt. And
Delphi?s vision is that vehicles with 48-volt systems would also have a
strong regenerative braking system to capture much of the energy lost
when a vehicle slows down.

Read mo
http://autoweek.com/article/technolo...#ixzz4V6czYRqB

And when you can buy a car that says "Delphi
Motors" on the front then the industry will give
a crap what bull**** "Delphi" is trying to sell.

Bolt runs on 350v, Volt runs on 360, Tesla runs
on 375. All have 12v subsystems to support
various accessories. The notion that 48v is of
some great advantage in building hybrids and
electrics has little contact with reality.