REGENERATIVE BRAKING

PRESENTED BY : DIVYA KUMAR GUPTA

11115026B.TECH IIIrd Yr. EE

What is Regenerative Braking??

Conventional braking systems convert kinetic energy into heat, usually via friction. This wastes a great deal of energy!

Regenerative braking systems reclaim and storing the kinetic energy in a reusable manner

Many modern electric drive vehicles including electric locomotives and HEVs have regenerative braking systems

Principle of working

Batteries MotorKinetic Energy

Energy Flow: Acceleration

Batteries MotorKinetic Energy

Energy Flow: Regenerative Braking

BrakesKinetic Energy

Energy Flow: Traditional Braking

HeatLoss

Speed of VehicleKe=½ * M * V2

Options for storing the Energy

Recharging vehicle battery packs

Charging an array of capacitors/super-

capacitors

Non-electrical methods

Fluid compression

Flywheels

Cars with Regenerative Braking• Toyota Prius• Honda Insight• Ford Escape

Hybrid• Tesla Roadster• Chevy Volt

Benefits of Regenerative Braking

Increase of overall energy efficiency of a vehicle

Increases vehicle range

Cuts down on pollution related to electricity

generation

Increases the lifespan of friction braking systems

Less use of traditional mechanical brakes leads to

less wear over time

The Downsides

Added complexity of brake control system

Only works for wheels connected to motors

Most vehicle operation is done in 2WD

Friction brakes are still necessary

Safety

Motor braking power decreases as the kinetic

energy of the vehicle decreases

Conclusion

Regenerative braking is an effective method

of improving vehicle efficiency and longevity

Is already in use in many EVs

The technology to do it exists and is often

well worth it

Mostly dependent on the wider adoption of

EVs or further development of hydraulic

regeneration systems

THANK YOU

Any Queries ???