TurboBattCap

That was throughly humorous. Thanks for the laughs.

And, when you're home from the road trip, just leave it parked outside and plug it into the house mains and generate electricity for the grid.

I've never actually used the word, "mains" before, being from the USA, but it seems to work ok.

LOL! That was a good grin.

Or I hope it was intended to be funny anyway.

If not it can join all the other misguided "Turbo something Crap" theoretical AE and RE powered devices that dont rely on reality to govern their operation and function. (Scam crap that just cant work.)

You've done the hard part already, come up with a catchy name. Just be careful though and guard against any potentially dangerous runaway conditions.

Imagine a sudden gust of headwind, the turbine spins faster, the elec motor drives the car faster, the higher forward speed causes the turbine to speed up, driving the motor faster etc.

Soon you'd be skipping down the highway like a stone skipping across a pond.

Yep, that should be a good way to increase an EVs range, add more drag!

Your wind turbine will create extra drag that will require more power from the engine to overcome initiating a vicious circle.

Think of the power required to move a car at higher speeds, stretch your arm outside a fast moving car, feel the air resistance, multiply that by the frontal area of the car, that's 1 of the forces you will have to overcome think of the size of the wind turbine to generate that kind of "juice". It will be like driving around with a small parachute attached to your car, plus the added weight of the power gen system etc ...

It's just my opinion.

Never mind the nice funny wise guys that know it all. Christopher Columbus, Tesla, Galileo amongst others were laughed at.

You really have to forgive them cuz they don't have a clue on what it means to come up with something original, all they did/do is to read books written by someone else, they just regurgitate the crap placed on their brains by others. No mind of their own.

".. cuz they don't have a clue on what it means to come up with something original .."

I don't know about the others who replied, but I spend most of waking hours coming up with original designs using my hard won knowledge of maths, physics etc , a lot of which was learnt from books.

This may not be as pure and noble as ignorance, but it's all I've got.

Right ...

The real problem you have to take into account is what's to keep the car from rotating while the turbines stand still!!!

i love it when people think out of the box. nothing is free drag will be a problem. you mentioned controllers if this system could be deployed as an air brake drag problem solved.

Several people have proposed such ideas here. Read though this thread first, and then search for the others.

Most who propose such ideas on engineering sites eventually say, in response to feedback, "No! It's not a perpetual motion machine! It just doubles or triples the range of an ordinary electric car." These people do not understand why adding a windmill to an electric car reduces the range of such a car. They incorrectly assume that the engineers who design electric cars are idiots.

Every recent electric car has regenerative braking. This works because an electric motor is also generator. So, when you want to slow down, you generate electricity with the drive motor, and in so doing you extract energy from the cars forward motion. If you really wanted to think outside the box (rather than rehashing this tired old idea of a windmill powered by a vehicle) you would just turn on the regenerative brakes all the time! (And get out and push?) Or perhaps have two motors -- one driving the right wheel, and one acting as a generator on the left wheel. That's it! This would be brilliant!

The "drive right generate left" concept:

This would be far more efficient than a windmill, which looses much of its energy to stirring the air (for each hp of additional effort required to push the windmill through the air, at very best, 1/2 hp is returned from the generator: make the windmill large enough and you could reduce range by about half -- even if all the hardware was weightless.)

The brilliant part of the "drive with the right wheel and generate with the left" is that the efficiency of driving a generator from the road surface as it moves past is very high: with care, this could be 90% efficient (close to twice as efficient as a wind turbine!!) With such an arrangement, for each hp of additional drag on the car (from turning the generator) you would get back 9/10 hp. That means that you would only be reducing the performance of the electric car by 10%!! So as a scam, this would work better, because it would not be so obvious to the investors that your proposal decreases vehicle efficiency, instead of increasing it. (Whereas with the windmill idea this would be obvious to many investors -- albeit not the ones who slept through physics class.)

An engineer who designs electric cars would say "I'd have to be a nut-case to put a generator on one wheel and a drive motor on another: I'd add cost and weight, and reduce performance." He'd say that because he thinks inside the box of honesty. If he could just loosen up a bit, he'd see that the "drive right generate left" concept could be a great scam. If only the Wright brothers could have thought outside the box, instead of as engineers, they could have come up with some really great scams -- they could have been the ones to come up with the Nigerian email scams... Maybe that's what they were thinking, and they came up with the airplane to deliver the letters via air mail. Then the airplane took up so much of their time that they were never able to work on the real deal.

4) As the vehicle-plane-train-boat-etc. get in motion during travel and coasting this basically speaking 'wind turbine genset' will rotate as a commonly dynamo producing a sustainable source of energy for power up any of such machines.

I'm thinking: laser power download system.

A Boeing 747 has a LOT of wind blowing past it (which coincidentally seems to match it airspeed). We know that those huge engines could push some huge wind turbines through the air. My guess is that the wind turbines could easily produce about double the total power of the engines -- probably more than that if we made the turbines really big. (We'll have to refine these numbers.) Some of that energy would be used to run the plane's entertainment system (for free!) but most of it would be beamed down to ground, where it would be used to power electric cars. This energy would be sold by the airlines, enabling them to drastically lower fairs. Win-Win

simple answer no it wont work, extra wind to drive turbine comes from forward motion of car which is driven by your motor, if you increase drag by using the freewheeling turbine fans you will increse electricity used, so no gain.

are you aware that when most electric cars are freewheeling ie going down hill the drive motors are used as generators to recharge batteries?

also when you brake the motors turn into generators for a short time before you stop.

so a lot is already done to get some free power back when breaking is needed but it wont be a lot, as the car is very light it wont have much inertia, momentum or whatever

nice thought though

Guess this explains the big air intake on the front of the TurboBattMobile...