Can full electric Cars charge themselves?

Question

My last question asked about full electric cars, well this leads me to another question.If a half and half car can power up the battery part while the vehicle is coasting to a stop.Then surely an all electric car with 2 power plants can basically charge itself up meaning you would never have to stop.

Answer 1

When the car is stopping it doesn't fully charge the battery. It just makes the car go a little further. Two power plants can not charge themselfs because of losses. then you need power for the car to move it. A car that had a bigger battery and ran on up electric to 15 miles per hour would be great for bumper to bumper traffic conditions  and would reduce smog this idea would not need as much baddery power and wouldn't cost as much how com I'm the only one who thought of it .

Answer 2

With a hybrid you would have to stop to add fuel.  With an electric car you would have to stop to charge the batteries.  Because no mechanical system can be entirely self powered.  Your example of charging the batteries while coasting will not recharge them for the amount energy used to get the car moving.

This is the central theme of the second law of thermodynamics, or entropy.  In a nut shell, there will always be some energy lost from a system in the form of heat.  That loss of energy must be replaced from an outside agency for the system to continue to function.

Answer 3

No.

Answer 4

I would suspect that you would have to stop to charge, kind of like a battery.

Answer 5

Yeah, that's basically how the Prius works, the internal combustion engine, when at highway speeds, uses an alternator to charge the batteries back to their full charge.  When city driving (under 5-10mph) the engine shuts off or idles and you drive with the batteries engaged.  City driving is the most fuel inefficient so that's where the fuel savings is.

I think the cars are practical for somepeople.  I did check into it when I was searching for a new car, but I drive mostly highway miles and the mpg with the car I have now and the mpg of a Prius or similar weren't that significant.  Current car gets 35mpg, Prius was about 31mpg for mostly highway.)

Of concern to me regarding the Prius or other hybrids is what to do with the batteries, the cost of them, etc...  Proper disposal/recycling...

Answer 6

From a past report that I read, they use everything that they can on the car to produce that electricity.  The brakes, the axle rotations, everything that has the potential to produce elec. power is harnassed.

Answer 7

There is a loss of efficiency every time the energy changes . Look at the power in watts it might give u a better picture.

Answer 8

No, can't be done.  You are talking about a perpetual motion machine (which people have been trying to design for too long).

Answer 9

No, that would just mean more sources for cemf drag. OTOH, if you installed an e.v. gray motor or bedini circuitry, it's perfectly possible to charge up DEAD batteries while driving to your heart's content.

Do the research before hitting the thumbs down button. The 2nd Law doesn't apply in an open system, which is what these devices use.

Answer 10

you will have to stop to charge.