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Hybrid electric vehicles are one of the most practicable technologies in the automobile industry to conserve resources and to protect the environment. Mode transitions between different modes are critical to improve fuel economy and driving performances. Due to the response delay of the engine and the engagement of the clutch, smooth transitions are sometimes difficult to achieve. Fuzzy sliding mode...
Both of the electric variable transmission (EVT) and Toyota Hybrid System (THS) can be used as an power split device in the hybrid electric vehicles (HEVs). They can make the internal combustion engine (ICE) independent of the road loads and run in the high efficiency area to reduce the fuel consumption as well as emissions. However, the planetary gears of THS make serious vibration and noise, limiting...
Due to the torque fluctuation in the mode transition caused by the different response speed of motor and engine, a novel torque coordinated control strategy is proposed in this paper. First, a simplified model of parallel hybrid electric vehicle(PHEV) is constructed. Then a coordinated control method based on the sliding mode control is studied. In order to improve the control performance, the fuzzy...
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