The invention discloses a remaining driving range estimation method and device of an electric vehicle and a vehicle control unit. The method comprises the steps that the temperature of a power battery of the electric vehicle is determined; when the temperature of the power battery is not in the preset temperature interval, determining an available power consumption attenuation proportion of the power battery according to the temperature of the power battery; the current environment temperature is obtained, and the vehicle resistance remaining proportion is determined according to the current environment temperature; and when the air conditioning system of the electric vehicle is started, the air conditioner power consumption attenuation proportion is determined according to the starting gear of the air conditioning system, and the remaining driving range of the electric vehicle is determined according to the available power consumption attenuation proportion, the vehicle resistance remaining proportion and the air conditioner power consumption attenuation proportion. Therefore, the accuracy of estimating the remaining driving range of the electric vehicle can be improved, and a user can conveniently carry out travel planning.

    本发明公开了一种电动车辆的剩余续驶里程估算方法、装置和整车控制器,其中方法包括:确定电动车辆的动力电池温度;在动力电池温度未处于预设温度区间时,根据动力电池温度确定动力电池的可用电量衰减比例;获取当前环境温度,并根据当前环境温度确定车辆阻力剩余比例;在电动车辆的空调系统开启时,根据空调系统的开启档位确定空调功耗衰减比例,并根据可用电量衰减比例、车辆阻力剩余比例和空调功耗衰减比例确定电动车辆的剩余续驶里程。由此,能够提高电动车辆的剩余续驶里程估算的准确度,方便用户进行出行规划。


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    Title :

    Remaining driving range estimation method and device of electric vehicle and vehicle control unit


    Additional title:

    电动车辆的剩余续驶里程估算方法、装置和整车控制器


    Contributors:

    Publication date :

    2022-05-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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