The embodiment of the invention discloses a charging method and a charging system of a storage battery for an electric vehicle, relates to the technical field of electric vehicles, and aims to conveniently reducing the manufacturing cost of the electric vehicle. The method comprises the following steps: determining a charging power corresponding to the current voltage of a storage battery according to the corresponding relationship between the voltage of the storage battery and the charging power; determining the charging rotating speed of a generator according to the charging power and a charging curve; determining the driving speed of an engine according to the charging speed of the generator; determining the driving power of the engine according to the charging power; and sending the driving rotating speed and the driving power of the engine to an engine controller, so that the engine drives the generator to rotate at the charging rotating speed according to the driving rotating speed and the driving power to charge the storage battery. The charging method and system are suitable for charging the storage battery in the electric automobile.
本申请的实施例公开一种电动汽车用蓄电池的充电方法及充电系统,涉及电动车技术领域,为便于降低电动汽车的制造成本而发明。所述方法包括:根据蓄电池电压与充电功率的对应关系,确定与蓄电池当前电压对应的充电功率;根据充电功率以及充电曲线,确定发电机的充电转速;根据发电机的充电转速,确定发动机的驱动转速;根据充电功率,确定发动机的驱动功率;向发动机控制器发送发动机的驱动转速和驱动功率,以使发动机按照驱动转速和驱动功率驱动发电机按照充电转速转动,对蓄电池充电。本申请适用于对电动汽车中的蓄电池进行充电。
Charging method and charging system of storage battery for electric automobile
一种电动汽车用蓄电池的充电方法及充电系统
2020-07-03
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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