An Investigation of Opportunity Charging with Hybrid Energy Storage System on Electric Bus with Two-Speed Transmission

As one of the most popular and important forms massive transit, public bus contributes to a healthier environment compared private vehicles. Through electrification bus, energy consumption, carbon emission, air pollution can be significantly reduced. However, limited driving range high battery replacement cost put significant barriers its large-scale commercialization. Thanks development wireless charging technology opportunity strategy, improved. has suffer additional impulse current generated by charging. In this paper, hybrid storage system (HESS) that combines supercapacitor related control strategy is proposed smoothen extend lifespan. A comprehensive investigation combined impacts HESS carried out in terms extension lifespan improvement. The detailed model powertrain are built. global optimizing method, dynamic programming, adopted as management under Chinese heavy-duty commercial vehicle test cycle-bus (CHTC-B). degradation employed evaluate health with 60 kW results demonstrate for could improve concurrently via