Regenerativebraking (RBS) is a type of kinetic energy recovering system that is able toconvert the kinetic energy of a moving object to energy that can be stored toslow the vehicle down.

It is mostly applied into hybrid cars, electric cars or trainsnowadays. The regenerative braking can also increase the fuel efficiency of thevehicle.1 Inthe vehicle, the regenerative braking systems are installed on the drive trainof the vehicle or installed on the drive wheels.

The drive wheels restrain themotion of the wheels by using the mechanical torque and using the magneticfield. Thus, allowing energy to be generated under the brake. Other than thefriction of the brakes is wasting energy in the form of heat energy.

This ideaof the brake can take the kinetic energy that it absorbs and turn it intopotential energy for later use has been around since the 1800s. One of theearly idea of this systems, is that they install springs types of regenerativebrake systems on the front of the wheels of the bicycle.         RBS are implemented to vehicles todaybecause of the many advantages of the RBS.

The RBS helps to reduce wear andincrease efficiency of the vehicles brakes. When the motor is not receiving anypower from the battery, it starts to resist the turning of the wheel, thuscapturing the energy of the motion just like a generator and it can generatethe energy back to the battery. In a conventional mechanical brake, decreasingthe wear and by increasing the brakes life is not viable. This will reduce theuse of the brake. Other than that, hybrid and full electric vehicles produceless to non-carbon dioxide gas emissions to the environment. In addition tothis, the RBS will also help in fuel economy in hybrid vehicles as they canrecharge the battery when it is needed to.

The RBS still has its downs, whendriving in a busy city. The driver will spend some good amount of time braking.The vehicle will use up quite some fuel in the city for each kilometre it travelsthan on a highway.

This is because of the law of thermodynamics, thatinefficiency come from heat generation. When braking the brake disc and brakepad will produce heat. That heat will disperse into the surrounding. Moreover,heat energy has higher entropy meaning it is less ordered.


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