Abstract
This paper presents a trip-oriented Plug-in Hybrid Electric Vehicle (PHEV) energy management control (EMC) strategy that aims to improve the real world PHEV energy usage efficiency, economy and flexibility. The designed control architecture and methodologies enable the energy management control to utilize different levels of available trip foreknowledge, from as limited as distance between charges to as much as driving patterns, routing and real time traffic information, to optimize the onboard energy (fuel and electricity) usage. The proposed EMC first programs a battery SOC profile along a specific trip that governs an optimized energy consumption process with respect to a customer's energy usage budget and foreseeable trip information. Next, a feedback controller manages the fuel consumption to electricity depletion ratio to achieve the preplanned energy consumption process by following the SOC profile and controlling the PHEV powertrain to its most efficient admissible operating states.
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