It is a very very good project which I had made HMHU-201.pptx

It's a language project from engineering department

1. Kalyani government engineering college Sem-2 Assignment- HMHU-201 Name- Mangaldeep Mitra Roll no. – 10200723020 Year- 1st Topic- Regenerative breaking system Department- Mechanical engineering Reg no- 231020110227 Session- 2023-2024

2. Declaration I hereby declare that the project report ‘regenerative breaking system’ submitted by me to kalyani Government Engineering College, kalyani , Nadia In partial fulfillment of the requirement for the award of degree of B.Tech in MECHANICAL ENGINEERING DEPARTMENT is a record of bonafide project work carried out by me under the guidance of Mrs. Swati Pradahan . I further declare that the work reported in this project has not been submitted and will not be submitted either in part or full, for the award of any other degree or diploma in this institute or any other institute or university. Kalyani , Nadia Date: 12 th March, 2024 Signature of student Mangaldeep Mitra

3. Certification This is to certify that Mangaldeep Mitra has successfully completed the project on ‘ regenerative breaking system ’ under my guidance and supervision. I am satisfied with their initiative and efforts for completion of the project as part of curriculum of B.Tech SEM-2 ASSIGNMENT. Signature of Professor

4. Acknowledgement I would like to express my gratitude up everyone who helped me in completing this project. Furthermore I would also like to thank my teacher Swati Pradhan madam who helped me in completing this project with her valuable guidance and ideas.

I would like to also thank my parents and friends, because without their suggestions, it wouldn’t have been easy to complete this project Signature of student Mangaldeep Mitra

5. Summary Hybrid and electric cars integrate various systems to optimize efficiency, and regenerative braking is a vital component of that overall equation. Besides minimizing energy loss and extending electric range, regenerative braking systems lengthen brake life due to their low wear and tear characteristics. The benefits of this technology are evident and help make green vehicles ever more appealing to consumers.

6. Contents Introduction – 1 Objective of regenerative breaking system – 2 Components – 3 Working function – 4 Advantages - 5 Disadvantages - 6 Conclusion - 7 Reference - 8

7. Introduction Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy or potential energy into a form that can be either used immediately or stored until needed. Typically, regenerative brakes work by driving an electric motor in reverse to recapture energy that would otherwise be lost as heat during braking, effectively turning the traction motor into a generator. Feeding power backwards through the system like this allows the energy harvested from deceleration to resupply an energy storage solution such as a battery’s capacitors; once stored, this power can then be later used to aid forward propulsion. Because of the electrified vehicle architecture required for such a braking system, automotive regenerative brakes are most commonly found on hybrid and electric vehicles.

This method contrasts with conventional braking systems, where excess kinetic energy is converted to unwanted and wasted heat due to friction in the brakes. Similarly, with rheostatic brakes, energy is recovered by using electric motors as generators but is immediately dissipated as heat in resistors.

In addition to improving the overall efficiency of the vehicle, regeneration can significantly extend the life of the braking system. This is because the traditional mechanical parts like discs, calipers, and pads – included for when regenerative braking alone is not sufficient enough to safely stop the vehicle – will not wear out as quickly as they would in a vehicle relying solely on traditional brakes.

8. Objective of Regenerative breaking system Regenerative braking systems aim to recover, store, and re-use some of the vehicle’s braking energy to improve fuel efficiency or boost the range of electric and hybrid vehicles (FEV and HEV).

9. Components

10. Working function To understand how the regenerative braking system works, it is necessary to remember that every moving body has kinetic energy. When braking a car with an internal combustion engine, this energy is consumed during the contact of the brake pads and brake discs, erasing them, i.e. just “nowhere.” Electric vehicles are taking a more thoughtful approach to energy use. The recovery process is presented here as follows
When braking starts, the electric motor changes its operating mode: instead of being powered by a battery, it starts to work as a generator, generating energy. At this moment, opposite currents appear in the rotor and stator windings.
The decrease in the speed of the vehicle occurs because a braking torque appears on the shaft of the electric motor.
The kinetic energy available before the start of braking is transformed into electrical and thermal energy.
The emerging additional electricity flows into the battery, thereby increasing its charge.
In a situation where the range of an electric vehicle is limited by the battery charge, any source other than the charging station that can generate additional energy is important. Therefore, regenerative braking DPT is a good and promising way to increase mileage. And 70% of the saved energy is a good indicator, given that just 10-15 years ago such losses were not paid attention to at all.

11. Advantages It improves the fuel economy of the vehicle. The amount of fuel consumed can be dramatically reduced with this type of braking system due to the regeneration of energy.
It allows for traditional friction-based brakes. A friction braking system is included with a regenerative system to ensure a vehicle is able to stop in time.
It prolongs the charge of the battery. Once the energy is captured by the regenerative brakes, the energy is used to recharge the batteries of the vehicle. Because this energy would normally be lost, it allows each vehicle to experience a prolonged charge while driving.
It reduces the wear and tear on the braking system. Because an electric drivetrain is part of this system, the greater efficiency given to the braking allows for a reduced level of wear on the brakes of the vehicle. With standard friction brakes, there is no way to accomplish this benefit.

12. Disadvantages It offers a sliding scale of benefits. The effects of regenerative braking decrease with the speed a vehicle is traveling. At low speeds, friction brakes are required to bring most vehicles to a complete stop. That means there is still energy being lost.
It offers a different feel to the driver. Regenerative braking systems feel different to drivers who are used to traditional systems. The brake pedal on the vehicle often feels soft, described as “mushy” by many drivers. Until you get used to the new system, some may have a lack of confidence in the capabilities of their brakes.

13. Conclusion Using this system, instead of converting kinetic energy into thermal energy, using regenerative braking the kinetic energy is converted into electrical energy. In this way, the batteries of electric-powered vehicles are recharged and the range of the vehicle is increased.

14. References https://www.elprocus.com/what-is-regenerative-braking-system-working-its-applications/ https://www.matfoundrygroup.com/blog/what-is-regenerative-braking-and-how-does-it-work https://en.wikipedia.org/wiki/Regenerative_brake