Harnessing Energy from Stopping Vehicles

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The discussion centers on the potential for harnessing energy from vehicles during braking, specifically through the use of alternators or generators. It highlights that hybrid vehicles already utilize regenerative braking, which can recover 50-75% of wasted energy by using electric motors as generators. Some participants express skepticism about the effectiveness of hybrids, citing concerns over added weight and complexity. They suggest that a simpler, more efficient petrol or diesel engine might be a better solution. Overall, the conversation emphasizes the balance between energy recovery technologies and vehicle efficiency.
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With all the electric/hybrid cars becoming part of everyday life, I’ve been thinking about all the energy going to waste when ‘n vehicle has to come to a stop. Would it be possible to use alternators/generators to make use of that energy to make the vehicle come to a stop? As I understand, the more current being ‘pulled’ from an alternator, the more force the magnetic fields would try and stop rotation. Using current regulation would it be possible to control the stopping force, if an alternator was put on each wheel? Is this whole scenario plausible?

Sorry for bad English (not my first language).

Thanks
 
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This is exactly what hybrids do. An electrical motor run backward is the same as a generator. It's called regnerative braking and gets back 50-75% of the wasted energy.
 
Thanks, didn't know.
 
I don't think hybrids really work. You are adding weight and complication.

Better to have a small vehicle with an efficient as possible petrol/Diesel engine.. Eg .. Toyota Aygo (also badged as Citroen C1)
 
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