【摘要】 露天矿物料运输普遍采用矿用自卸车，其驱动系统存在动力性不足、燃油经济性差等现实问题。融合混合动力技术的优势，提出了一种前轴液压驱动、后轴动力耦合的新型功率分流式油-电-液三元混合动力驱动系统及其基于转矩的逻辑门限值控制策略。利用AMESim与MATLAB/Simulink软件搭建混动矿卡联合仿真模型，分别以提高动力性与载重性为优化目标进行仿真与对比分析。结果表明：与原车型相比，新车型的0～30 km/h加速时间缩短了50.47%,最高车速与最大爬坡度分别提高了8.3%和34.5%,百公里燃油消耗量降低了12.53%,且主要动力部件工作特性良好；在整车动力性达到原车型动力性指标的前提下，新车型最大载重量可达到498 t,较原车型提升了24.5%,百公里油耗相较原车型降低了2.57%。更多还原

【Abstract】 Mining dump trucks are commonly used for open-pit mine material transportation, and their drive systems have practical problems such as insufficient power and poor fuel economy. In this paper, a new power-split oil-electric-hydraulic ternary hybrid drive system with a front axle hydraulic drive and a rear axle double planetary coupling device for dynamic coupling is proposed, and its torque-based logic threshold control strategy is proposed. AMESim and MATLAB/Simulink were used to build a hybrid mining truck co-simulation model, and the optimization goals of improving dynamic and load capacity were simulated and compared respectively. The results show that compared with the original model, the 0-30 km/h acceleration time is shortened by 50.47%, the maximum speed and maximum climbing angle are increased by 8.3% and 34.5%, respectively, the fuel consumption per 100 km is reduced by 12.53%, and the working characteristics of the main power components are good. The simulation results show that while matching the dynamics performance of the original model, the maximum load capacity of the dump truck can reach 498 t, which is 24.5% higher than that of the original model, and the fuel consumption per 100 kilometers is reduced by 2.57% compared with the original model.更多还原