Regenerative braking is helpful in extending the range of electric cars. The problem is that the motor is only 80% efficient in turning electricity into rolling power. The engine will be powered by a battery but when the vehicle is in motion the battery is charged from the mechanical energy coming from the wheels. This conversion of electrical energy to mechanical energy and then back to electrical energy creates a loop that sustains energy. Energy losses are compensated by an amplifier that equalizes energy levels.
30 points | 63 comments
By Alexander
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