Electric Car project ?

 

I got a wild idea to convert my old Honda Civic into electric car, remove
engine and install dc motor with good torque and deep cycle battery bank
(like golf cart batteries)  to power dc motor. Also install a battery
charger in car for charging batteries while parked over night in garage or
any other place where AC outlet is available.

I am also thinking to have a small diesel generator in car to charge
batteries in case on long drive.

Now back to DC motor..... I am lookin a motor something like half motor and
half generator. When motor is in use for driving, the other half side of the
motor is also generating electric to charge the batteries same time
......Got the idea ? Now this kinda motor is special, not a normal motor,
any one knows or any info on that kinda motor ?

I know lot of genius and more knowledgeable peoples are here, I would
appreciate some input on this project or from any one who has done something
similar to this project.

 


Awsome wrote:

Well, there is the guy who dropped a 10HP chinese diesel into a
Geo...... He hit 50 MPH with it, but, your gonna need more than a 10 HP
electric motor with that slightly larger and heavier car. You might
want to do some math and find out exactly what you might need. If you
just want a simple commuter, you might dig around and find an old GE
"Elektrak" garden Tractor. Those came with a 16HP drive motor, and if
you can find one with a snowblower or tiller, each of those came with
the very same motor. Then you could couple the two motors when more
power is needed.

Or, Surplus DC motors can be found via simple googling, and often they
can be found affordably. However, it is the "Controller" aspect that is
the expensive part. You have to find something that can handle large
amperages to give you smooth variable speeds without going up in smoke,
and they are not cheap.

Off the shelf controllers specifically for this often already include
methods for using the motors for regenerative braking. I read stuff a
while back that people were replacing the burned out controls in their
Corbin Sparrows with one from another company, but if I recall, that
was a thousand dollar project !

Then again, if your just messing around, you could always use a stack
of off the shelf 6 volt batteries and use selenoids to just "Add"
successive batteries for more voltage, which means faster motor RPM.

I see electrics coming in the future, and I sure like the one shown
here : http://www.commutercars.com/

Yep, could be a fun project...... I would want to try to charge the
batteries by using a small steam engine just to keep it really
interesting.

Grummy

 

Awsome wrote:

Something like the following:
http://www.budget.net/~bbath/CivicWithACord.html


You might have to remove a couple of seats or something to fit that
"small" generator. It might help if it was a high speed rotary
diesel with a turbo. They are slightly smaller and lighter if they
exist at all.


Regenerative braking, where you run the motor as a generator to recharge
the batteries, uses all of the motor. It's either operating entirely as
a motor and pushing the car down the road or operating entirely as a
generator and slowing the car.

If you're looking for some magic perpetual motion device (which produces
more electricity than it uses) then you're out of luck. No such thing
can exist in this universe unless someone rewrites the laws of physics.

Anthony

 



A motor that simultaneously generates torque and charges batteries cannot be
made; it is contrary to the laws of physics.
There do exist motors that can generate electric power while exerting a
braking action on the car.

But you can't have torque generation and power generation at the same time.

A general comment: Since making a practical electric car has taken billions
in research by the major car manufacturers, it is too hard for you to do
well. You would end up with a car that had a very low power to weight ratio.
Ie., it would be very slow, and it would probably have very little usable
space.

Don't bother.

 

On Sat, 3 Dec 2005 01:15:45 -0500, "Robert Morein"


My Fiat was a full 4 passenger car and could strip the rubber off the
front tires with very little effort. The motor was small for the
application, but I ran the 4 speed transmission. Top speed was in
excess of 50mph.