The invention provides an energy control method for an extended-range hybrid electric vehicle, which comprises the following steps of: acquiring specific fuel consumption values corresponding to different output powers of an engine at different rotating speeds according to universal characteristics of the engine and a generator of the vehicle; selecting a working condition point with the lowest fuel consumption value according to the value of the engine output power, and forming a working condition point set; and when the vehicle runs, the output power and the rotating speed of an engine are obtained according to the running working condition, when the output power is smaller than a set power threshold value, the working condition point with the lowest specific fuel consumption value corresponding to the output power is matched in the working condition point set, and the running working condition is corrected according to the working condition point. The electric quantity balance of the hybrid electric vehicle can be improved, and the energy utilization efficiency of the electric vehicle is improved.
本发明提供一种增程式混合动力电动车能量控制方法,包括:根据车辆发动机和发电机的万有特性,获取发动机在不同转速下不同输出功率时所对应的比油耗值;根据发动机输出功率的取值选出比油耗值最低的工况点,并形成工况点集合;在车辆行驶时,根据运行工况获取发动机的输出功率及转速,并在所述输出功率小于设定功率阈值时,在所述工况点集合中匹配与所述输出功率相应的比油耗值最低的工况点,并以该工况点对所述运行工况进行修正。本发明能增加混合动力电动车的电量平衡,提高电动车的能量利用效率。
Energy control method for extended-range hybrid electric vehicle
一种增程式混合动力电动车能量控制方法
2023-01-31
Patent
Elektronische Ressource
Chinesisch
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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