The invention discloses an electric vehicle remaining mileage estimation method based on capacity consumption, which is characterized in that when the battery state and the discharge voltage are relatively stable, the real-time remaining capacity is calculated through the SOH (state of health) of a battery, the rated capacity of the battery and the real-time battery current, and then the capacity consumption is calculated through the integration of the real-time battery current and the vehicle speed; and calculating the endurance mileage of the electric vehicle. According to the method, SOC estimation and detection errors are omitted, compared with an existing endurance mileage estimation method, the calculation precision of the endurance mileage of the electric vehicle is improved, the calculation method is simple and reliable, the endurance mileage of the current vehicle is more accurately expressed, and basic use requirements can be met on the premise that few calculation resources are occupied.
本发明公开一种基于容耗的电动车剩余里程估算方法,针对电池状态和放电电压比较稳定时,通过电池的健康状态SOH、电池额定容量和实时电池电流计算实时剩余容量,再通过实时电池电流和车速的积分计算容耗,进而通过计算电动汽车续航里程。本发明的方法省略了SOC估算和检测的误差,与现有的续航里程估算方法相比,提高了电动汽车续航里程计算精度,且计算方法简单可靠,更为精确表示当前车辆的续航里程,可以在占用较少的计算资源的前提下满足基本使用需求。
Electric vehicle remaining mileage estimation method based on capacity consumption
基于容耗的电动车剩余里程估算方法
2022-04-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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