The invention discloses an electric vehicle energy consumption estimation method, device, equipment and program product, and the method comprises the steps: obtaining voltages corresponding to different residual electric quantities of a battery of an electric vehicle in a target discharge process, and obtaining an actual correlation curve between the residual electric quantities and the voltages; screening out a target curve segment with a voltage fluctuation amplitude exceeding a preset fluctuation amplitude in the actual correlation curve; performing curve smoothing processing on the target curve segment to obtain a smooth curve segment; determining a target correlation curve according to the smooth curve segment and the actual correlation curve; and inputting the target correlation curve and the motor efficiency curve into a pre-constructed battery simulation module, and estimating to obtain energy consumption data of the electric vehicle in the target discharge process. According to the method, the curve that the voltage changes along with the residual electric quantity is divided into a plurality of target curve segments, the characteristic voltage when the battery works relatively stably is calculated, then the energy consumption of the electric vehicle is estimated according to the motor efficiency curve of the characteristic voltage, and the accuracy of energy consumption simulation is improved.

    本发明公开了一种电动汽车能耗估算方法、装置、设备和程序产品,包括:获取电动汽车的电池在目标放电过程中不同剩余电量分别对应的电压,得到剩余电量与电压之间的实际关联曲线;筛选出实际关联曲线中电压波动幅值超过预设波动幅值的目标曲线段;对目标曲线段进行曲线平滑处理,得到平滑曲线段;根据平滑曲线段和实际关联曲线,确定目标关联曲线;将目标关联曲线和电机效率曲线输入预先构建的电池仿真模块中,估算得到电动汽车在目标放电过程中的能耗数据。本发明通过将电压随剩余电量变化的曲线分成多个目标曲线段,计算出电池相对稳定工作时的特征电压,再对应特征电压的电机效率曲线估算电动汽车的能耗,提高了能耗仿真的准确性。


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    Title :

    Electric vehicle energy consumption estimation method, device, equipment and program product


    Additional title:

    一种电动汽车能耗估算方法、装置、设备和程序产品


    Contributors:
    WU HAO (author) / LI YINGHAO (author) / WANG LING (author)

    Publication date :

    2025-01-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES