Hybrid Battery System of Electric Motorcycles for Power Boost during High-Speed Driving

This study introduces a hybrid battery system as a new approach to energy management in electric motorcycles. There is a limit to the lithium-ion batteries (LIBs) that can be installed as the power source. This limits instantaneous high-speed performance and power recovery through regenerative braking. The proposed system incorporates a LIB (sub-battery) with an H-bridge converter, which has a low capacity and excellent high-speed charging and discharging, as a supporter battery for the conventional system. This system aims to improve high-speed driving performance, reduce losses during regenerative braking, and also enable sub-battery charging while driving.