Proceedings of the
International Conference on Mechanical Engineering 2009
(ICME2009) 26- 28 December 2009, Dhaka, Bangladesh

ICME09-TH-15

ENERGY EXTRACTION FROM CONVENTIONAL BRAKING
SYSTEM OF AUTOMOBILE

Aktaruzzaman and Mohammad Ali
Department of Mechanical Engineering
Bangladesh University of Engineering and Technology
Dhaka, Bangladesh

ABSTRACT

Optimization of power consumption is an important subject in the design of automobile. The conventional braking (friction brake) system losses considerable amount of energy during car drive. A model of braking system is designed and constructed to extract and store energy during the braking of a car. Gaseous fluid is compressed in cylinder by a high pressure liquid to store the energy of brake. A positive displacement pump driven by the extraction of energy from break is used to supply the high pressure liquid. During braking the pump is clutched with the power train of the car. The pump utilizes the inertia energy of the car to compress the gaseous fluid. This stored energy can be used to enhance the acceleration of car and to run other accessories of the car. A performance test of the brake model is conducted and can be found that, during brake approximately 60% of inertia energy can be saved.

Keywords: Braking System, Inertia Energy Conservation, Compressible Fluid, Friction Brake.

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