Application of Super Capacitor in HEV Regenerative Braking System

ABSTRACT

In order to ensure superiority of fuel and improve start and stop performance of hybrid electric vehicle, battery is used in the system. Limited by vehicle’s size, traditional hybrid electric vehicles can only carry a limited number of batteries, resulting in a relatively short running distance in one battery charge cycle. To improve energy using efficiency and increase vehicle safety, composite power based on lithium ion battery and super capacitor is proposed in this paper. Super capacitor parameter is designed according to hybrid electric vehicle regenerative braking model based on Matlab simulation. The experiment is also evaluated based on the composite power. Results show that both motor and power can work well and super capacitor can absorb the regenerative braking energy of hybrid electric vehicle greatly.

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