Design of a performance analyzer for electric vehicle taxi systems

Abstract

This paper designs a performance analysis framework for electric vehicle taxis, aiming at promoting their wide deployment. Consisting of an event tracker, a stream handler, object interfaces, and strategy integrator, the analysis procedure can measure the performance of a dispatch and relocation strategy in terms of dispatch latency, customer waiting time, and the number of daily fast charging operations. Each pick-up and drop-off record from the actual call taxi system is associated with the corresponding taxi and charger object. It can host a new dispatch strategy to test and revise, while a specific road network and a future demand prediction model can be incorporated for better accuracy. This framework finds out that most battery charging can be done using slow chargers through the out-of-service intervals under the control of an intelligent coordinator for the fleet of member taxis, avoiding the significant increase in power load brought by fast charging operations. © 2014 Springer International Publishing Switzerland.