Regenerative Braking

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Regenerative Braking

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Driven by the desire for sustainability, regenerative braking is the latest addition to EV technology in the automotive sector.

Normal Braking: In a traditional vehicle, when you brake, the car’s kinetic energy (the energy it has while moving) is turned into heat and wasted.

Regenerative Braking

 

Regenerative Braking 

  • Regenerative braking is a brake system designed to convert the kinetic energy of the wheels, typically lost as heat during braking, to a form that can be stored and used for other purposes.
  • During regenerative braking, the motor operates as a generator, turning mechanical energy back to electrical energy, which is stored separately in a battery and used for other purposes.
  • Regenerative braking works on the principle of the law of conservation of energy.
  • Regenerative Braking claims to recapture as much as 70% of the kinetic energy typically lost from braking.

 

Significance of Regenerative Banking 

  • Energy Efficiency: Reuses energy, reducing the need for frequent battery recharges.
  • Extended Range: Allows electric and hybrid vehicles to travel further on a single charge.
  • Less Wear and Tear: Decreases wear on traditional brake components, lowering maintenance costs.
  • Regenerative brakes are beneficial in stop-start traffic.
  • Aids in reducing carbon emissions.

 

Challenges 

  • Regenerative braking alone often cannot bring a vehicle to a complete stop and needs to be supplemented by conventional braking systems.
  • Regenerative brakes may not prevent vehicles from sliding backward on a downhill slope. 
  • The efficiency of energy recovery decreases as the vehicle’s speed slows down.

 

Another way to recover energy 

  • Flywheels can store mechanical energy by increasing angular momentum, which is useful in applications such as Formula One racing and satellite navigation.
  • Kinetic energy can also be used to compress air, which can be useful for starting internal combustion engines.

 

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