Analysis and comparison of optimal power management strategies for a series plug-in hybrid school bus via dynamic programming

Zhou, Wei; Zhang, Chengning; Li, Junqiu

doi:10.1504/ijvd.2015.073116

Cited by 5 publications

(1 citation statement)

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“…Although the CD/CS strategy is simple to implement for real-time control, its fuel economy is poorer than that of the blended strategy [25]. This is because the extender provides the average power demand for the TM in the CS mode, and the engine in the extender works in the low efficiency region.…”

Section: Introductionmentioning

confidence: 99%

Intelligent Energy Management Control for Extended Range Electric Vehicles Based on Dynamic Programming and Neural Network

Zhang

Sun

et al. 2017

Energies

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Abstract:The extended range electric vehicle (EREV) can store much clean energy from the electric grid when it arrives at the charging station with lower battery energy. Consuming minimum gasoline during the trip is a common goal for most energy management controllers. To achieve these objectives, an intelligent energy management controller for EREV based on dynamic programming and neural networks (IEMC_NN) is proposed. The power demand split ratio between the extender and battery are optimized by DP, and the control objectives are presented as a cost function. The online controller is trained by neural networks. Three trained controllers, constructing the controller library in IEMC_NN, are obtained from training three typical lengths of the driving cycle. To determine an appropriate NN controller for different driving distance purposes, the selection module in IEMC_NN is developed based on the remaining battery energy and the driving distance to the charging station. Three simulation conditions are adopted to validate the performance of IEMC_NN. They are target driving distance information, known and unknown, changing the destination during the trip. Simulation results using these simulation conditions show that the IEMC_NN had better fuel economy than the charging deplete/charging sustain (CD/CS) algorithm. More significantly, with known driving distance information, the battery SOC controlled by IEMC_NN can just reach the lower bound as the EREV arrives at the charging station, which was also feasible when the driver changed the destination during the trip.

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Section: Introductionmentioning

confidence: 99%