| ENERGY MANAGEMENT STRATEGY OF PLUG-IN HYBRID ELECTRIC
VEHICLES CONSIDERING THERMAL CHARACTERISTICS |
| Dafeng Song 1, Daokun Bi 1, Xiaohua Zeng 2, Shiyuan Wang 1 |
1College of Automotive Engineering, Jilin University
2State Key Laboratory of Automotive Simulation and Control, Jilin University |
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| ABSTRACT |
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In order to explore the influence of the thermal management system (TMS) on vehicle energy management
and tap the energy saving potential of TMS, this study establishes a vehicle energy management strategy control model
oriented to reduce energy consumption of the TMS based on MATLAB/Simulink for a plug-in hybrid electric vehicle with
planetary hybrid configuration. Firstly, a simulation model of vehicle dynamic machine - electric - thermal coupling working
process is introduced, to evaluate the impact of TMS in the high and low temperature environment on energy consumption of
the vehicle running. Then, based on the equivalent fuel consumption minimum strategy (ECMS) and considering the
influence of TMS on energy consumption, an adaptive equivalent consumption minimum strategy model considering thermal
characteristics (TAECMS) is established, which propose an improved adaptive equivalent factor adjustment method
considering the thermal characteristics of the system is proposed. By establishing the Hamiltonian function to achieve the
goal of minimum equivalent fuel consumption, considering the temperature penalty, the power of the engine and the power of
the battery is reasonably allocated. Finally, the TAECMS control strategy achieves fuel saving of 6.2 % and 8.4 %
respectively in high and low temperature environments through simulation verification and comparison. |
| Key Words:
Plug-in hybrid electric vehicle, Thermal management system (TMS), Adaptive equivalent consumption
minimization strategy with thermal characteristics (TAECMS) |
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Corresponding Author.
Xiaohua Zeng , Email. 
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