Journal of Chongqing University of Technology(Natural Science) ›› 2023, Vol. 37 ›› Issue (9): 62-70.
• “Research on Energy Management Technology of New Energy Vehicles” Special Column • Previous Articles Next Articles
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Abstract: A dual-motor plug-in hybrid electric vehicle (plug-in hybrid electric vehicle, PHEV) with P1 and P3 is chosen as the research platform. In the energy recovery process, the P1 and P3 motors can be performed simultaneously, providing a more significant energy recovery advantage than other configurations. During braking, when the P1 motor is more efficient than the P3 motor, the P1 motor is used in preference for braking and the P3 motor provides the remaining required braking force. However, when the P3 motor is more efficient than or equal to the P1 motor, the P3 motor is used in preference for braking and the P1 motor makes up for the remaining required braking force. The experiment is carried out on a dual-motor plug-in hybrid vehicle equipped with an AMT (electronically controlled mechanical brake transmission).In order to recover as much energy as possible while ensuring braking safety, a hybrid vehicle based on dual motors is proposed. Based on the distribution of dual-motor energy recovery for front and rear axle, electromechanical and dual-motor braking force, a multi-stage braking power distribution strategy is proposed. The whole vehicle model is established and analyzed by using Matlab/Simulink. The simulation results show that the braking energy recovery strategy proposed in this paper can reach 66.56%, and the recovery effect is good.
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