To enhance the fuel economy of parallel hybrid commercial vehicles equipped with auto-matic transmissions and optimize the efficiency of the drive system,a new method for dividing driving mode boundaries and gear boundaries was proposed.A control strategy for mode switching and gear shifting was developed based on optimal efficiency and simulated under the driving conditions of Chi-nese heavy commercial vehicles.The results demonstrate that the proposed strategy maintains the bal-ance of the battery state of charge,and achieves a 11.2％reduction in fuel consumption per 100 kilo-meters compared to the electric assist control strategy,which improves the fuel economy.
关键词
能量管理策略/边界划分方法/模式切换/换挡规律/混合动力商用车
Key words
energy management strategy/boundary division method/model transition/gear shifting law/hybrid commercial vehicle
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