Application of flywheel system in series hybrid transit bus

This paper presents analysis of a proposed series hybrid configuration suitable for use in a transit bus. A model of an existing vehicle drivetrain is validated against experimental data collected over an eight month period. Modeling the vehicle with a flywheel energy storage system, a corresponding control scheme for the generator is proposed. Based on the recorded driving conditions, a series of simulations are conducted to verify the feasibility and performance of the proposed design. Based on the simulation results, an economic comparison between the proposed and original design is provided demonstrating the economic advantage of the proposed design.