Trying to play catch-up again.
Why not do it the easy way. Use the diesel engine to run a hydraulic
pump and use it to charge an accumulator that links to hydraulic drives
on the axles. Should do just what you want. easy enough to experiment
with larger or smaller accumulators till you get it
10:31 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] VW Diesel vs Prius
Diesel gets better milage on the open road -- a car with just the
gasoline engine in a hybrid will get better milage on the open road.
A hybrid (any hybrid) only has an advantage in stop and go driving.
Peter
I thought that was the definition of a hybrid gas(diesel)/electric.
plug in hybrids are just electric cars with supplementary gas or
diesel hybrid engines.
Of course, plug in hybrids use less gasoline, but produce more
carbon footprint as most of them will be charged by coal fired power
AT WOT a diesel should burn about 30% less fuel -- simple
thermodynamics. Full throttle doesn't have much effect on volumetric
efficiency, and gassers still burn lots more fuel per hp even when
running efficiently (as in above idle at decent charge density)
because they have so much less
I want a DIESEL/electric hybrid -- should boot the milage way up.
If the engines are properly sized, shouldn't make any difference
on the highway. In town, the diesel should still do better.
The real question in my world is whether or not a pure diesel
car can beat a diesel-electric hybrid. No
'Been asking for 10 yrs or more, Why doen't somebody build a
Diesel/electric car?
BTW, I've been driving a Diesel/electric scooter nearly 3 years.
Wilton
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That's because today's hybrids are really not hybrids at all. They use
their
motor / generator batteries to save some of the energy lost in
braking
then they re-apply the energy when the car is rolling again.
That's one of their functions. Ideally, the fuel motor
is only sized
The diesel will still do better on the highway in miles per gallon --
more BTU per gallon in diesel fuel than in gasoline. It should also
use fewer BTU per hp, hence fewer per mile due to better thermal
efficiency.
However, it's gonna be hard to beat the real world known milage of a
] [mailto:[EMAIL PROTECTED]
On Behalf Of Jim Cathey
Sent: Thursday, June 05, 2008 8:35 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] VW Diesel vs Prius
I want a DIESEL/electric hybrid -- should boot the milage way up.
If the engines are properly sized, shouldn't make any difference
BTW, I've been driving a Diesel/electric scooter nearly 3 years.
D/e only because you charge it from your diesel car, right?
-- Jim
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Peter Frederick wrote:
Of course, plug in hybrids use less gasoline, but produce more
carbon footprint as most of them will be charged by coal fired power
plants, which are probably the least efficient sources of energy out
there.
I read something in the current Mother Earth News that made me
'-charge the scooter from my Diesel MB, yes.
The electric scooter has a Diesel sticker (smaller, paper copy of MB trunk
badge) on the back. People ask, Where's the Diesel part of that scooter?
Pointing to the front of the car, I reply, Under that hood right there.
Wilton
BTW, scooter dealer tried to tell me I couldn't charge the scooter in the
car. I knew better than that, though, and I don't give up easily. An
electron is an electron. The scooter battery doesn't care where it gets
'em - it just doesn't want too many of 'em too fast.
Wilton
In Toronto they have some Biobuses that run a diesel electric hybrid
just like a train!
Goes much better than the two stroke diesels did. A bit quieter too!
Zedic
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BTW, scooter dealer tried to tell me I couldn't charge the scooter in
the
car. I knew better than that, though, and I don't give up easily.
He was probably thinking of trying to charge it directly
from the alternator system. But there's _always_ a way!
-- Jim
There's a lot of room for improvement. A truly efficient
hybrid needs only a relatively small battery, but one that
can charge and discharge rapidly and efficiently.
Hmmm...could that be done with some honkin big capacitors? Might be
dangerous but so is petrol.
Zedic
There was a concept car about 20 years ago, with a motor/generator hooked
up to a flywheel in the trunk and four motor/generators in the hubs.
Rev up the flywheel during braking, and then dump it back to the
wheels when the light turns green.
Jeff Zedic wrote:
There's a lot of room for
That was a good idea until you had to turn with the flywheel spinning
Trampas
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Mitch Haley
Sent: Thursday, June 05, 2008 11:11 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] VW Diesel vs Prius
Trampas wrote:
That was a good idea until you had to turn with the flywheel spinning
Horizontal. Imagine a spare tire under the trunk floor.
I can't believe I'm referencing the NYSlimes, but here's the
most I could find on it without digging out ancient Popular Science
magazines.
On Thu, Jun 5, 2008 at 8:39 AM, Mitch Haley [EMAIL PROTECTED] wrote:
Trampas wrote:
That was a good idea until you had to turn with the flywheel spinning
Horizontal. Imagine a spare tire under the trunk floor.
With bonus rollover protection!
Alex
To: 'Mercedes Discussion List'
Subject: Re: [MBZ] VW Diesel vs Prius
That was a good idea until you had to turn with the flywheel spinning
Trampas
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Mitch Haley
Sent: Thursday, June 05, 2008 11:11 AM
On Thu, 5 Jun 2008 10:59:55 -0400, Jeff Zedic [EMAIL PROTECTED] said:
There's a lot of room for improvement. A truly efficient
hybrid needs only a relatively small battery, but one that
can charge and discharge rapidly and efficiently.
Hmmm...could that be done with some honkin big
Tom Hargrave [EMAIL PROTECTED] said:
Problem is (and the reason we don't have these now) is the varied road
conditions in this country. It would be easy to design a system for the
relatively flat parts of the country, but take the same car to the Smokey
Mountains you would very quickly turn
On Thu, Jun 5, 2008 at 9:44 AM, Allan Streib [EMAIL PROTECTED] wrote:
You could have an engine that is capable of normal efficient operations
but which has a flank power mode, and burn more fuel for hill climbs
when you outstrip the buffer in the battery bank.
Or perhaps just an additional
Alex wrote: How about a diesel with cylinder deactivation, like the Olds
8-6-4? You'd just need a servo-controlled valve on top of each injector and
then they could be controlled individually based on load.
I think you are thinking of the Cadillac 4-6-8. It was a gas engine, and it
was a
Some models have that now, GM I think has it currently
Donald Snook wrote:
Alex wrote: How about a diesel with cylinder deactivation, like the Olds
8-6-4? You'd just need a servo-controlled valve on top of each injector and
then they could be controlled individually based on load.
I think
Prius
That was a good idea until you had to turn with the flywheel
spinning
Trampas
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
On Behalf Of Mitch Haley
Sent: Thursday, June 05, 2008 11:11 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] VW Diesel vs Prius
Hmmm...could that be done with some honkin big capacitors? Might be
dangerous but so is petrol.
They'd be ideal, if the energy density and cost were there.
-- Jim
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If you designed them so, they could be structural elements - big tubes
of metal and dielectric material (plastic). maybe the whole body could
be a capacitor sandwich!
Imagine how the sparks would fly in an accident!
On Thu, Jun 5, 2008 at 8:45 PM, Jim Cathey [EMAIL PROTECTED] wrote:
Hmmm...could
Just one BIG spark.
Thanks,
Tom Hargrave
www.kegkits.com
256-656-1924
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of OK Don
Sent: Thursday, June 05, 2008 8:55 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] VW Diesel vs Prius
If you designed them
Guess which one wins ---
http://www.pcmag.com/article2/0,2704,2316573,00.asp
--
OK Don, KD5NRO
Norman, OK
There are three kinds of lies: lies, damn lies, and statistics.
-Benjamin Disraeli and/or Mark Twain
'90 300D (Rattled), '92 300D (Saber), ' '81 240D (Gramps), '97 Ply
Grand Voyager
Diesel gets better milage on the open road -- a car with just the
gasoline engine in a hybrid will get better milage on the open road.
A hybrid (any hybrid) only has an advantage in stop and go driving.
Peter
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