The invention provides an electric vehicle energy recovery method and device, an energy recovery system and an electric vehicle, and relates to the technical field of vehicle energy recovery. A motor loaded on a drive axle on the target vehicle is controlled to convert fuel energy of a fuel cell on the target vehicle into mechanical energy in a driving mode, and if the target vehicle is switched from a running state to a braking state, the motor is controlled to be switched from the driving mode to an energy recovery mode; determining whether the auxiliary power supply battery is in an electric quantity saturation state; and if the auxiliary power supply battery is in the electric quantity saturation state, controlling an energy recovery path between the motor and the auxiliary power supply battery to be disconnected, and controlling a power supply path between the motor and a target electric load corresponding to the auxiliary power supply battery to be opened. The energy recovery efficiency of the electric vehicle is improved, the braking control capacity of the electric vehicle is improved, and the service life of the auxiliary power supply battery is prolonged.
本申请提供了一种电动车辆能量回收方法、设备、能量回收系统及电动车辆,涉及车辆能量回收技术领域,其中,该方法包括:在目标车辆处于行驶状态下,控制目标车辆上的驱动桥上装载的电机在驱动模式下将目标车辆上的燃料电池的转换为机械能,若目标车辆从行驶状态切换至制动状态,则控制电机从驱动模式切换为能量回收模式;确定辅助供电电池是否处于电量饱和状态;若辅助供电电池处于电量饱和状态,则控制电机和辅助供电电池之间的能量回收路径断开,并控制电机和辅助供电电池对应的目标用电负载之间的供电路径开启。本申请提高了电动车辆能量回收效率电动车辆的制动控制能力,延长了辅助供电电池的寿命。
Electric vehicle energy recovery method and device, energy recovery system and vehicle
电动车辆能量回收方法、设备、能量回收系统及车辆
03.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |