The invention belongs to the technical field of vehicle energy power system control, and particularly relates to a power composite coordination control method based on a variable altitude working condition. The method comprises the following steps: firstly, calculating a difference value between engine matching power and generator load power demand at different moments under a variable altitude working condition according to actual working condition characteristics, and meanwhile, calculating differentiated battery charging and discharging process power according to different temperatures corresponding to altitude changes; therefore, according to the engine-generator power flow matching difference value, the battery SOC value margin and the charging and discharging power value at the corresponding altitude temperature, composite coordination control strategy design under different power matching requirements and dynamic working conditions is carried out; therefore, a system power flow control system with system power following control, system constant power adaptive control and system power composite control as main bodies is finally built and completed, so that power flow cooperative control of a vehicle power system in a dynamic environment is achieved, and the power system composite control and adjustment process under power dynamic balance is completed.
本发明属于车辆能源动力系统控制技术领域,具体涉及一种基于变海拔工况的功率复合协调控制方法。首先,该方法根据实际工况特征进行变海拔工况下不同时刻发动机匹配功率与发电机负载功率需求的差值计算,同时针对海拔变化对应的不同温度进行差异化电池充放电过程功率计算。由此,根据发动机‑发电机功率流匹配差值、电池SOC值余量以及相应海拔温度下充放电功率值,进行不同功率匹配需求与动态工况条件下的复合协调控制策略设计,由此最终搭建完成以系统功率跟随控制、系统恒功率适应控制和系统功率复合控制为主体的系统功率流控制体系,从而实现动态环境下的车辆动力系统功率流协同控制,完成功率动态平衡下的动力系统复合控制与调节过程。
Power composite coordination control method based on variable altitude working condition
一种基于变海拔工况的功率复合协调控制方法
10.11.2023
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 |
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