【摘要】 在履带车辆能量控制策略的研究中,相比于传统的履带车辆单一的动力源,混合动力履带车辆是多能源动力系统,能量分配控制策略制约着动力系统的运行效率。为了优化能量分配控制以及改善整车的燃油经济性,提出了在发动机多点转速下,采用模糊控制理论的动力系统功率分配控制策略;建立了面向控制的整车动态仿真模型,包括驾驶员模型,动力电池组模型,发动机模型,电机模型以及整车动力学模型。根据建立的车辆动态模型,采用模糊分配控制策略,在不同的SOC初值、不同的循环工况以及不同的控制策略下仿真,结果表明,利用模糊规则的能量分配控制策略燃油经济性较好,并且能保持动力电池组SOC平衡在在一定范围内。更多还原

【Abstract】 The energy distribution for a hybrid tracked vehicle was analyzed.Compared with traditional tracked vehicle,the energy distribution control strategy affects the working efficiency greatly for its multi-power system.To optimize the energy distribution control and improve the vehicle fuel economy,the power distribution control strategy was proposed based on fuzzy roles in the engine control.A control-oriented dynamic simulation model of a hybrid tracked vehicle was built,including driver model,battery model,engine model,motor model and vehicle dynamic model.According to the vehicle dynamic model,the simulation was conducted using the fuzzy control strategy in different SOC,driving cycles and strategies.The conclusion is that,by means of the designed fuzzy rules,the fuel economy of the vehicle is of better performance and the SOC of the battery sets can be maintained within a certain range.更多还原