[DMCForum] Re: Passing Gas

["cruznmd" <racuti1@xxxxxxxxxxxx>]

Ok, I get your point. Obviously I haven't read up enough on how 
hybrid cars work because somehow they have overcome all this.

Yes, we have LP cars, but they are usually purchased by large 
companies with large fleets of vehicles and state and municipal 
governments. There are not many LP fueling stations around for 
private citizens.

Um...while you guys are bashing Bill and his carb'd PRV...you should 
know that the damn thing came with an LP carb on it. It's set to burn 
LP right now.

--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@xxxx> wrote:
> Possible, but pointless. It's all about the conservation of energy. 
The 
> more time you convert energy, the less efficient the system. You 
burn 
> gas to drive your car. Now you're talking about burning gas to 
drive a 
> generator to charge batteries to power your motor to drive the 
car.....
> 
> Which do you think will use more fuel?
> 
> You can't easily compare the performance of an electric motor 
against a 
> petrol engine. Power to weight is always better on a petrol engine, 
but 
> you have fantastic torque at your disposal from a large electric 
motor. 
> For example: My direct injection turbo diesel Citroen puts out 
250Nm of 
> torque at maximum (3500rpm IIRC). The two electric motors that 
drive our 
> robot put out over 20Nm at stall (max torque in an electric motor 
is 
> always at stall) - and they each weigh 3.5kg.
> 
> With the right motor, even though HP figures are tiddly (our motors 
are 
>   2.5kW each which is a shade over 3hp), you can use the torqe 
(Luke) 
> and  get fantastic accelleration way in excess of anything 
reasonable 
> from a roadgoing petrol engine. I remember reading an article about 
> electric dragsters out accellerating petrol ones over 1/8th of a 
mile. 
> With a bootfull of Hawker red tops costing over $100 each....
> 
> Do you guys have LPG cars over there yet?
> 
> Martin
> 
> cruznmd wrote:
> 
> > I'm going to pose a possible project. It may dumb, it may not but
> > here it is:
> > 
> > I love my car. I like it stock. I like it historically correct. 
That
> > said, gas prices are out of control. I've accepted that to enjoy 
my
> > car for 20 more years I may have to modify it.
> > 
> > As a submariner, I've seen what it takes to make a submarine
> > independent from the outside world. I have a decent grasp of many
> > kinds of systems, I have lots of ideas.
> > 
> > I have a few ideas for a hydrogen powered car but I don't think I 
can
> > carry them off. But what about a hybrid DeLorean?
> > 
> > Some of you guys are smart with numbers and devices so let me put 
the
> > following questions to you:
> > 
> > How large would an electric motor have to be to give a DeLorean an
> > equivelant of 150 hp @ stock torque values? I saw the one in
> > the "Tilly" photos. It looked small. I want it to mate to the 
stock
> > transmission.
> > 
> > How large would a bank of HIGH quality, long-lasting batteries 
have
> > to be to power the car and all it's loads for about 80 miles?
> > 
> > How many hp and how many volts/amps would a generator pack have 
to be
> > to charge the battery and supply the maximum electrical load 
during
> > operation of the car?
> > 
> > I'm thinking of a stacked approach: 1st layer is the electric
> > motor/tranny and perhaps the generator pack. Build a platform 
above
> > it to hold batteries. Keep the fuel tanks for the generator. 
Remove
> > the cooling system up front, and perhaps more batteries up front 
in
> > place of the cooling system.
> > 
> > Is it possible?
> > 
> > Rich A.
> >

---

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