Aiming at the four-wheel drive hybrid structure, this paper aims at minimizing fuel consumption, takes full account of vehicle status, and designs a control strategy of working mode management and rule-based multi-power source energy allocation. In order to further improve the rationality of energy distribution, the ratio K of the demand torque to the optimal torque and SOC are the two inputs of the fuzzy controller, and engine torque working coefficient y is an output of fuzzy controller. The fuzzy control system is designed and the fuzzy control rules are established to optimize the engine working torque in real time. The simulation results show that the energy management strategy of the fuzzy optimal control accords with the demand of power train, realizes the smooth switching of working mode, reduces the speed error obviously, and improves the fuel economy by 7.81%.
Research on Fuzzy Energy Control Strategy for Four-Wheel Hybrid Electric Vehicle
Lect. Notes Electrical Eng.
2020-11-05
14 pages
Article/Chapter (Book)
Electronic Resource
English
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