1. Optimal Energy Control Strategy Design for a Hybrid Electric Vehicle.
- Author
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Yuan Zou, Hou Shi-jie, Li Dong-ge, Gao Wei, and Xiao-song Hu
- Subjects
- *
HYBRID electric vehicle design & construction , *OPTIMAL control theory , *HYBRID electric trucks , *OPTIMAL designs (Statistics) , *COMPUTER simulation , *DYNAMIC programming , *MATHEMATICAL models - Abstract
A heavy-duty parallel hybrid electric truck is modeled, and its optimal energy control is studied in this paper. The fundamental architecture of the parallel hybrid electric truck is modeled feed-forwardly, together with necessary dynamic features of subsystem or components. Dynamic programming (DP) technique is adopted to find the optimal control strategy including the gear-shifting sequence and the power split between the engine and the motor subject to a battery SOC-sustaining constraint. Improved control rules are extracted from the DP-based control solution, forming near-optimal control strategies. Simulation results demonstrate that a significant improvement on the fuel economy can be achieved in the heavy-duty vehicle cycle from the natural driving statistics. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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