This project presents an approach for designing of regenerative braking system for human powered vehicles such as bicycle. Existing regenerative braking system is robust and its application is limited to fuelled vehicles only. Keeping size and weight constraints in mind, a lucid mechanism that incorporates a flat spiral spring, planetary gear system and a one-way clutch as the main components, is investigated here as regenerative braking system. This system stores the kinetic energy in the form of elastic potential energy and converts it back to kinetic energy. The design setup is pliable and can be incorporated with ease on a wheel hub. The mechanism is capable to work in extreme conditions. This system will prove to be cogent in assistance to the driver while acceleration, thus enhancing the overall efficiency of the system
Objective:
1) To make our existing regenerative braking system more efficient
2) Environment friendly
3) Extend battery duration
4) Extend range
Methodology:
First, we design a cad model of our project in solid works.
Then we design a spring according to required loads.
Then we used a reversing gear mechanism system.
We used dog clutch system for engaging and disengagement.
Working Principle Regenerative braking is a braking method that utilizes the mechanical energy from the motor by converting kinetic energy into electrical energy and fed back into the battery source. Theoretically, the regenerative braking system can convert a good fraction of its kinetic energy to charge up the battery, using the same principle as an alternator. In regenerative braking mode, it uses the motor to slow down the car when the driver applies force to the brake pedal then the electric motor works in reverse direction thus slowing the car. While running backwards, the motor acts as the generator and recharge the batteries as shown in by using regenerative braking, it vastly reduces the reliance on fuel, boosting fuel economy and lowering emissions. These types of brakes work effectively in driving environment such as stop-and-go driving situations especially in urban city.
Project outcome::
Our main purpose is to make existing regenerative braking system more efficient. if we install our spring mechanism in motor / generator regenerative braking system , we can save many ampere of our battery . in this way we can make our regenerative braking system more efficient .
