Regenerative Brakes... What Are They? How Do They Work?
Stop... start... stop... start. If you make a habit of driving in city traffic, you'll know it can be a huge waste of time. What's less obvious is that it's also a waste of energy. Getting a car moving needs a big input of power, and every time you hit the brakes all the energy you've built up disappears again, wasted in the brake pads as heat. Wouldn't it be good if you could store this energy somehow and reuse it next time you started to accelerate? That's the basic concept of regenerative ("regen") brakes, which are widely used in electric trains and the latest electric cars. What are they? How do they work? Read more...
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Reference: Explain That Stuff