The invention provides a charging and discharging control method for a new energy vehicle and a trailer, a vehicle control unit and a vehicle. A trailer is towed behind the new energy vehicle, and a battery system of the new energy vehicle is electrically connected with a battery system of the trailer. The charging and discharging control method comprises the steps that whether the new energy vehicle and the trailer are in a driving state or not is judged; if yes, when the remaining electric quantity of the new energy vehicle is smaller than a preset first electric quantity threshold value, a battery system of the trailer is controlled to transmit electric energy to a battery system of the new energy vehicle; if not, whether the new energy vehicle and the trailer are in a charging state or not is judged; if yes, electric quantity transmission input by the charging power source is controlled according to the remaining electric quantity of the new energy vehicle and the trailer; if not, electric quantity transmission of a battery system of the new energy vehicle is controlled according to the remaining electric quantity of the trailer. According to the scheme, the endurance mileage of the vehicle can be prolonged, and the use convenience of the electric equipment for towing the vehicle is improved.
本发明提供一种新能源车辆与拖挂车辆的充放电控制方法、整车控制器及车辆。新能源车辆后拖挂有拖挂车辆,新能源车辆的电池系统与拖挂车辆的电池系统电连接。充放电控制方法包括:判断新能源车辆和拖挂车辆当前是否处于行车状态;若是,则在新能源车辆的剩余电量小于预设的第一电量阈值时控制拖挂车辆的电池系统向新能源车辆的电池系统传输电能;若否,判断新能源车辆和拖挂车辆当前是否处于充电状态;若是,则根据新能源车辆和拖挂车辆的剩余电量控制充电电源输入的电量传输;若否,根据拖挂车辆的剩余电量控制新能源车辆的电池系统的电量传输。本方案能延长车辆的续航里程,并提高拖挂车辆的用电设备的使用便利性。
Charging and discharging control method for vehicle and trailer vehicle, vehicle control unit and vehicle
车辆与拖挂车辆的充放电控制方法、整车控制器及车辆
2022-07-08
Patent
Electronic Resource
Chinese
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