The invention belongs to the technical field of hybrid electric vehicles, and particularly provides a whole vehicle energy management method for an extended-range electric vehicle, which comprises the following steps of: after the whole vehicle is powered on, calculating the average vehicle speed and the maximum vehicle speed of the latest S kilometers in real time; when the average vehicle speed of the whole vehicle is higher than a first threshold value and the maximum vehicle speed is higher than a second threshold value, the whole vehicle enters a common working condition mode to operate; in a common working condition mode, the engine output power reference is calculated by using the whole vehicle historical energy consumption average power array, and the output power of the engine is calculated by combining an engine output power SOC change compensation value, an engine output power PID compensation value and an engine output power driving motor compensation value. And the output power of the engine adaptively follows the required power of the whole vehicle. And the current required power of the whole vehicle can be predicted. And the energy utilization efficiency of the whole vehicle is improved while the response speed of the engine and the operation stability of the engine are ensured.
本发明属于混合动力汽车技术领域,具体提供一种增程式电动汽车整车能量管理方法,包括如下步骤:整车上电后实时计算最近S公里的平均车速及最高车速;当整车的平均车速高于第一阈值且最高车速高于第二阈值时,整车进入普通工况模式运行;在普通工况模式下,利用整车历史能耗平均功率数组计算发动机输出功率基准,结合发动机输出功率SOC变化补偿值、发动机输出功率PID补偿值及发动机输出功率驱动电机补偿值计算发动机的输出功率,实现发动机输出功率自适应跟随整车需求功率。可以对整车当前需求功率进行预测。在保证发动机的响应速度及发动机运行稳定性的同时提升了整车能量利用效率。
Whole-vehicle energy management method for extended-range electric vehicle
一种增程式电动汽车整车能量管理方法
2023-09-29
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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