Re: Wheel motors - too good to be true?

On 6 Jul 2006 10:24:57 -0700, the renowned dagmargoodboat@xxxxxxxxx
wrote:


Jim Thompson wrote:
On 5 Jul 2006 18:14:36 -0700, dagmargoodboat@xxxxxxxxx wrote:


Jim Thompson wrote:
On 5 Jul 2006 10:30:35 -0700, dagmargoodboat@xxxxxxxxx wrote:

[snip]

But the internal combustion engine (ICE) is the *last* place you want
to draw peak power from, since it means the ICE has to be so grossly
oversized compared to cruising requirements. ICEs have abysmal output
at low rpm, necessitating a monsterous beast for decent acceleration,
e.g., from a stoplight. Thereafter you're stuck lugging around a huge
chunk of metal, running inefficiently at a fraction of its rated power.

The chief advantage a hybrid promises is the ability to run a much
smaller ICE optimized for your *average* load, while relying on the
flexibility and efficiency of the electrical motors and support system
to provide peak power. Small electrical motors can provide large
intermittent bursts. ICEs, I'm told, can be twice as efficient when
operated at optimum torque & rpm.

Cheers,
James Arthur

But V8's are so-o-o-o much fun ;-)

...Jim Thompson

Varrroooommmm!
We all like to go fast, but you *can* save a lot of fuel if you're
willing to take a little longer winding up. With Arizona gas--seems
juicier than CA gas--I got 41 or 42 mpg cruising @ 85 last time I
checked.

In what kind of a vehicle? Motorcycle ?:-)

Sn-orrt!

No silly, Acura Integra.

Best,
James Arthur

Sounds about right. 5.5-6 l/100km at 135km/h. And lots of pep.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@xxxxxxxxxxxx Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
.

Relevant Pages

  • Re: Wheel motors - too good to be true?
    ... Jim Thompson wrote: ... But the internal combustion engine (ICE) is the *last* place you want ... to draw peak power from, since it means the ICE has to be so grossly ... James Arthur ...
    (sci.electronics.design)
  • Re: Wheel motors - too good to be true?
    ... Jim Thompson wrote: ... But the internal combustion engine (ICE) is the *last* place you want ... to draw peak power from, since it means the ICE has to be so grossly ...
    (sci.electronics.design)
  • Re: Weather in Austin
    ... Jim Thompson wrote: ... miles of ice to water ... fusion, ice) ... this much heat? ...
    (sci.electronics.design)
  • Re: OT IEEE Spectrum on Anthropogenic Global Warming
    ... James Arthur wrote: ... events that go against the trend, ... I thought Arctic Ice was on the INCREASE. ... Engineers have to make things that WORK! ...
    (sci.electronics.design)
  • Re: Wheel motors - too good to be true?
    ... Jim Thompson wrote: ... But the internal combustion engine (ICE) is the *last* place you want ... to draw peak power from, since it means the ICE has to be so grossly ...
    (sci.electronics.design)