hybrid help

[roverthetop]

i have recently finished my dnepr/ lombardini conversion. no idea how to post pics, but i am wanting to do a hybrid now. i have seen the suzuki hybrid:
http://www.dieselbike.net/suzuki.htm
2d pic down. wondering if anyone has any more info/ specs/ wiring diagrams for her. would love to try this out. any aid is appreciated.
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[electronbee]

rover,

I think this idea is fairly simple. All you do is power a generator via your diesel engine and then that generator powers the motors. However, I do not see how this will be more efficient as you will be carrying a lot more weight around. Plus, the inherent complexity of this setup.

I have started thinking and sketching out a more hybrid type setup like with cars. It's in the beginning stages in my mind right now. Once I get something more solid I'll post. But, once again, I think it will end up being heavy due to the batteries/generator/motors and the mechanics to switch between the two drives. Cars have the advantage of being larger, having four wheels, and being able to handle the extra weight more easily.

eb

[roverthetop]

EB-
not necessarily:
http://hydrogenappliances.com/powerpmas.html
these little things put out alot of electricity.
i've a mate who is a locomotive engineer. locomotives have been doing this for a LONG time. he thinks its not only feasible, but easy as well.
batteries should be lithium for weight. and with my idea, there is no switching between drives. there is 1 drive- the motor.
i've been wanting to do this in a car now, for the room. i have a 1963 austin healy sprite- great for weight.
my 22 hp vtwin weighs 75kg. there will be some added weight, but with the torque of the motor, should be good. remove the petrol tank from under the boot. put the diesel and pma's in the boot, with the room now from the petrol tank. create a battery tray IN the framerails. center of gravity is low. motor hooks up front to the gearbox.
would love to chat about ideas.

[visser]

Perhaps what you should look into are these new light weight capacitors....

google eestor http://en.wikipedia.org/wiki/EEstor

these are going to be used in an upcoming Zenn electric car produced here in Canada - but ironically can't be used here in Canada because we don't have legislation for low speed vehicles yet.

[electronbee]

Here is a company that does conversions and has kits and parts:

http://www.electroauto.com/

Those PMA look very promising however according to their website those vlaues are a under a no-load/peak condition. So, those values will be considerably less. RMS would take any of those values X .707 which is a pretty big drop.

I think the best bet would be with four of SuperCore 60 at 6000 RPM. They will produce a high enough voltage and four of those guys will produce enough current at RMS to supply the AC controller at ElectroAuto if it needs it.

What would be really good is to find a generator that has more of a linear voltage output in relation to RPM so you can just bump up the RPM to supply more current as needed. Maybe a sense circuit to increase the engine RPM on acceleration or up a hill. Once you cruise on a flat the current draw should be minimal.

eb

[smokyjoe]

A friend of mine who works for an electric power company is in the thinking stages of building an electric motorbike. He has to travel 15 miles to work, all 65 MPH highway. His employer has installed mains outlets in the parking lot for electric vehicles, but no one has taken them up on it yet.

He is planning on building a permanent magnet 3 phase motor right in the wheel and using old laptop NIMH batteries for power. He has an almost unlimited supply of old batteries, he has found that usually only 1 or 2 cells are dead from each pack. He is thinking of using a small lightweight streamlined bike for the mechanicals and he could tuck away the zillion laptop cells under the fairings. The motor electronic controller is available almost ready to use on eBay. He has done the math and should get something that will cruise at 65 for the 15 miles easily on a charge.

If you use a bunch of poles in the motor and the rotor is almost as big as the wheel, it would move pretty smoothly.

Perhaps with less batteries and a diesel to drive the bike along the permanent magnet motor in the wheel would become an alternator, charge the batteries, and you'd have your hybrid. Of course, you couldn't use the electric motor and generate the juice at the same time, so it wouldn't be a "true" hybrid but it would fit the bill I think.

'course it's all easier said than done.

Ride safe

[electronbee]

If you do a search for electric mopeds and the like you will find electric hubs that can be spoked to a rim. I myself was thinking of using such a product for an electric motorcycle. You would have more room for a battery and a simpler drive train.

But, I have not seen one that can attain highway speeds. It would probably end up being huge as it would not have any gear reduction.

eb

[roverthetop]

what about.......

http://img54.imageshack.us/my.php?image ... untgi0.jpg

?????

[electronbee]

Ahhh...

That's also a very good idea. I kinda thought about something like that but I did not think to mount it so rearward. But, I like it! Definitely solves many problems about the chain and the swing arm and more room for the batteries!

eb

[roverthetop]

took me a while to find that pic, but i knew i had it. seems well packaged there, neat and tidy as well.
i did alot of research for an electric bike. thought a little 4 hp might get some pma's running well. Lithium batts and off you go.

[electronbee]

rover:

would you do direct drive or have a CVT drive a gear reduction? I was designing mine on paper and I was thinking a CVT might be good for the occasional steep hill where I live. I also know from looking at electric motor PDF's that there is a point where it is most efficient. So, I would try and target that RPM range as well.

Are the lithium batteries you are talking about the same ones used on laptop and the like? I am just wondering as that would be a lot of batteries.

eb

[roverthetop]

i would do direct if using electric propulsion. cvt's would be difficult to manage i think with immediate and full torque, also lossy. the batts are similar to laptops, but come in a wide range of sizes and shapes.