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基于轮地相互作用力模型,提出了一种新的滚动阻力数学模型,采用此数学模型,建立了包含平均坡度和平均滑转率的电传动车辆推进功率数学模型。对推进功率数学模型进行了仿真分析,与传统方法相比,该模型预算的推进功率更接近实际车辆行驶工况。以6×6混合电传动车辆为例,分析了几种比能量的动力电池组静默行驶时间与整车质量的关系,并对动力电池组的匹配选型进行了分析。研究结果为电传动车辆的功率预算、整车质量预算、动力电池组选型匹配提供了一种新的方法。
Based on the wheel-ground interaction force model, a new mathematical model of rolling resistance is proposed. Based on this mathematical model, a mathematical model of propulsion power of electric drive vehicles with average slope and average slip rate is established. The power mathematical model is simulated and analyzed. Compared with the traditional method, the propulsive power of the model budget is closer to the actual vehicle driving condition. Taking a 6 × 6 hybrid electric vehicle as an example, this paper analyzes the relationship between quiet driving time and vehicle mass for several specific energy battery packs, and analyzes the matching of power battery packs. The results provide a new method for the power budget of electric drive vehicles, vehicle quality budget, matching and selection of power battery packs.