electric_ride

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Crusin' Usin' Electric

Sceadwian

That math on that seems a bit flakey to me. 10kwatt's is the equivilant to a 12 horsepower engine, how is that going to power a car? 220AC to 220 DC is simple, use four diodes in a basic bridge configuration. 40amps is a drop in the bucket compared to what modern power diodes can handle.

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electric_ride

Sounds good , your math is correct on the HP as well , but someone who claimed to be a engineer claims I need to limit my current because the batteries will try and draw more from the generator is this true?Also yes the 10k watt is just a little small that's why once I prove how well it will work I will step up to a 15 or 20k watt generator plus I already have the 10k.

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Crusin' Usin' Electric

Nigel Goodwin

Why not just connect the engine to the wheels?, FAR more efficient than using it to power an alternator and charge a battery (both of which make losses).

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jpanhalt

What fuel are you going to use to power your generator? John

mvs sarma

Perhaps in favour of better controll !

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Sarma.

Ambient

I read the other day about a guy who converted his hummer to run on bio-diesel. He was on his way to a car show and some GM techies were checking out his hummer at the hotel he was staying at. They were quite impressed from what the story said. He supposedly gets nearly double the torque out of it, if I remember right. And the stuff lubricates so well that they could not tell the engine was running.

If you could use a bio-diesel engine to run the generator then you will have a very nice setup.

mvs sarma

vegitable oils are said to be used for grinding a metal! Such be the case, how bio-diesel stuff could work lubricant? Perhaps the engines life will be on the downturn.

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Sarma.

Ambient

They are used in the process to keep the bits cool I believe.

Nigel Goodwin

Must admit I'm somewhat sceptical about doubling the torque by using bio-diesel - assuming it wasn't the usual made up 'news' in the papers, I would suggest his engine modifications are more likely to be responsible?.

There's an advert currently running on my local radio station for a new diesel fuel - might be Shell? - apparently they have won the Le Mans 24 hour race two years running in a diesel Audi.

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electric_ride

Because the electric motor is hooked to the trans and then the drive shaft to the differinial . I want the generator to help power the the vehicle and the excess current to charge the batteries while I travel down the road .Plus your way will not work from what I understand.I am charging a bank of batteries . These batteries power the vehicle and I can use a generator for maintaining a certain voltage level and if I'm correct I should be able to get get at least 100 miles per gallon instead of the pitiful 50 miles per gallon a Prius gets. Basically I am going to build alot better hybrid is all and I just need to know if I need to limit my current by using a transformer and using a recitifer if it will clip the sine wave down to a good smooth pattern for dc voltage.

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Crusin' Usin' Electric

Nigel Goodwin

Be interesting to see if you can beat the performance of commercial examples when multi-millions of dollars have been spent developing it.

I would suggest that your generator probably won't have enough power to propel the vehicle, and charge the batteries - except under very specific low load conditions?.

Bear in mind, even if you get 100 miles per gallon, it's not really that - it's 100 miles per gallon AND per battery charge.

Anyway, what you need is an automatic battery charger circuit, but requiring such a high power is what's going to make it tricky.

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blueroomelectronics

More to building a Hybrid vehicle than you think. Good luck with that.

PS electricity isn't cheap either.

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simoin

electric_ride said "I just need to know if I need to limit my current by using a transformer and using a recitifer if it will clip the sine wave down to a good smooth pattern for dc voltage."

So what is the verdict all you experts what does this guy need to do?

Don't forget from the sound of this guy already has a fully electric vehicle and now wants to modify it into a hybrid, this should not be that hard should it? From my limited understanding of electronics the batteries would only draw as much as they need to keep themselves charged, so you'd be more charging the batteries than running the car unless they were full in which case your engine might pick up the generator as a power source?

jpanhalt

While I hate to contribute to the plans of someone who wants to pollute the environment more than is necessary to attain his goal of mobility, or to waste energy, or both, the answer is yes. You need some sort of regulator to go from an electric generator to a battery. Otherwise, you will at a minimum overcharge the battery, destroy it, and contribute even more pollution. A simple transformer or rectifier, though, is not the whole answer. The OP should study the voltage charging and regulating circuits of existing hybrid vehicles. John