某纯电动扫洗车能耗分析及能量管理策略研究

分析纯电动扫洗车的能耗机理,研究能量管理策略(EMS)以提升整车能耗经济性、优化作业效能。采集某纯电动扫洗车典型工况数据,统计分析各车载部件能耗特性,建立作业电机功率需求模型;根据驾驶员操作逻辑,提出基于规则的EMS;建立了纯电动扫洗车多目标优化方法,获得了规则策略中逻辑门限值的优化解,提出了基于改进规则的EMS;从清扫效果和整车能耗等角度评价了基于规则EMS和基于改进规则EMS的性能。结果表明,该纯电动扫洗车主要耗电设备为作业电机和驱动电机,二者占总能耗的89%;相对于基于规则的EMS,改进的EMS能够完成清扫任务并使整车电耗降低11.52%,作业时间缩短10.47%。

Research on Energy Consumption Analysis and Energy Management Strategy for an Electric Urban Sanitation Vehicle

The energy consumption mechanism of an electric sanitation vehicle was analyzed, and the energy management strategy (EMS) was studied to improve vehicle energy economy and optimize the cleansing effect. The data of typical driving cycles were sampled, the energy consumption percentage of devices onboard was statistically analyzed, and the power demand model for the working motor was created. Based on the logic of the driver''s operations, a rule-based (RB) EMS was put forward. A multi-object optimization method for the electric sanitation vehicle was applied, the logic threshold for the RB EMS was acquired and an improved RB EMS was proposed. From the aspect of the cleansing effect and vehicle energy consumption,the performances of both the original and the improved rule-based EMS were evaluated. Results show that the working motor and the drive motor are responsible for 89% of the overall electricity consumption.Compared with the original EMS, the improved rule-based EMS can complete the cleansing tasks while reducing the energy consumption by 11.52% and shortening the completion time by 10.47%.