nowadays, with increasing environmental and economic concerns, the need and importance of reducing vehicle waste energy is not hidden from anyone. The purpose of designing kinetic energy recovery systems for vehicles is to reuse the energy lost in the braking operation, which is generally released by friction in the form of heat. Braking energy recovery mechanism depends on the type of storage and the way system operates, is done in two general electrical and mechanical ways. Increased efficiency, reduced fuel consumption and vehicle pollution are the result of using these systems. Rotating flywheel is one of the most efficient, safe, inexpensive and clean energy storage ways with a long service life. This dissertation begins with the introduction of various types of braking energy recovery systems and reviews previous studies and examples of car featured with flywheel kers that are made by famous companies. with considering various considerations and theories, a sample was searched to design a prototype of the brake energy recovery systems with flywheel storage, compatible with “Samand” vehicle. . Simulink MATLAB and Advisor were used to eva‎luate the initial design and the effect of different parameters on its performance, and finally the results of different hypotheses were examined. The simulation results show that achieving a 12% reduction in fuel consumption and emissions for a car compatible with Samand specifications in intra-city driving cycles with a significant braking frequency is not at all unexpected. Also, solutions were proposed to improve the level of the controller and optimize it, if they are applied, we can certainly expect a further reduction in fuel consumption and pollution

محسن اصفهانيان

رضا تيكني

سعيد بهبهاني، محمدرضا فروزان