Hybrid Supply for Automotive Application Using Supercapacitors

In this article the replacement of the car battery by a hybrid supply is proposed. The specific power of the supercapacitors makes it very attractive for the startup of the car. This component has very high lifetime (1 million of cycles) what can improve the lifetime of the starter and the starter-alternator supply. After the identification of the ICE torque developed at the startup, the validation of the hybrid supply interest is proved by the simulation of the system using PSIM software. Finally, a test bench is developed in the laboratory to validate the simulation results.