We have to fabricate this model, when you are applied the brake condition while some energy is going loss that is conditions to avoiding, we have to fabricate on kinetic energy storage method, which is contain for like sun and planetary gear and scroll spring also attached.

When you need the brake, your applied the brake and both of clutch also applied. Brake condition done stop the wheel and disc contain system and clutch condition is disengaged the wheel and axle that is condition energy going loss, whereas our model engage the ring gear is rotate the reverse direction, as well as connecting on scroll spring rotate also same direction that is condition save the kinetic energy on clutch applied condition.

When you release the clutch, regenerating the kinetic energy on axle which is condition increased the pickup and fuel efficiency.