The invention relates to a method for operating an electric vehicle and to an electric vehicle having an electric travel drive for the travel movement of the vehicle, a first energy storage device, a second energy storage device which can be charged and discharged more quickly than the first energy storage device, and a bidirectional direct current transformer, the electric travel drive, the DC-DC converter and the second energy storage device are connected to one another via a common intermediate circuit, the intermediate circuit having an intermediate circuit voltage, and the first energy storage device having a storage voltage and being connected to the intermediate circuit via the DC-DC converter, the travel drive can be supplied with drive energy by means of a first energy storage device and/or by means of a second energy storage device via an intermediate circuit, the intermediate circuit voltage being converted into a storage voltage in a first conversion direction by means of a DC-DC converter, the storage voltage can be converted into the intermediate circuit voltage in a second conversion direction by means of the DC-DC converter, the first conversion direction being activated when the second energy storage device is charged, and the first conversion direction being deactivated when the second energy storage device is discharged.
本发明涉及一种用于运行电动车辆的方法和一种电动车辆,该电动车辆具有用于车辆的行驶运动的电动行驶驱动装置、第一蓄能器装置、可以比第一蓄能器装置更快地充电和放电的第二蓄能器装置、和双向的直流变压器,其中,电动行驶驱动装置、直流变压器和第二蓄能器装置通过共同的中间电路相互连接,其中,中间电路具有中间电路电压,其中,第一蓄能器装置具有储存电压并且经由直流变压器与中间电路连接,其中,行驶驱动装置可以借助第一蓄能器装置和/或借助第二蓄能器装置经由中间电路被供应驱动能量,其中,中间电路电压可以沿第一转换方向借助直流变压器转换为储存电压,其中,储存电压可以沿第二转换方向借助直流变压器转换为中间电路电压,其中,在给第二蓄能器装置充电时,第一转换方向被激活,其中,在给第二蓄能器装置放电时,第一转换方向被去激活。
ELECTRIC VEHICLE AND METHOD FOR OPERATING AN ELECTRIC VEHICLE
电动车辆和用于运行电动车辆的方法
2022-11-22
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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