The invention provides a hybrid electric vehicle energy management method considering thermal characteristics. The management method comprises the steps that the overall vehicle total power requirement including vehicle thermal management power consumption is calculated; a whole vehicle economic index, namely equivalent oil consumption is calculated; power distribution is carried out on the premise of considering the thermal characteristics of all parts of the power system; according to the SOC of the battery, the vehicle can realize the following three working modes: a pure electric vehicle (EV) mode, a charge-depleting (CD) mode and a charge-sustaining (CS) mode. According to the method, the influence of heat is considered in an energy management strategy, and the economy of the vehicle,especially under the limit temperature working condition, is improved.
本发明提出一种计及热特性的混合动力汽车能量管理方法,该控制方法包括计算包含车辆热管理功耗在内的整车总功率需求;计算整车经济性指标——等效油耗;在考虑动力系统各部件热特性的前提下进行功率分配;根据电池SOC,车辆可以实现以下三种工作模式:纯电动(Electric Vvehicle,EV)模式、电量消耗(Charge‑Depleting,CD)模式与电量维持(Charge‑Sustaining,CS)模式。本发明将热的影响考虑到能量管理策略当中,将改善车辆尤其在极限温度工况下的经济性。
Hybrid electric vehicle energy management method considering thermal characteristics
计及热特性的混合动力汽车能量管理方法
2021-03-12
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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