The invention provides an energy management system for high-voltage accessories of an electric vehicle. The system is characterized by comprising a vehicle control unit, a battery management system and high-voltage accessories, and the vehicle control unit, the battery management system and the high-voltage accessories are in communication connection with a CAN (Controller Area Network) bus. The battery management system and the high-voltage accessories collect respective data information and transmit the data information to the vehicle control unit through the CAN bus. The vehicle control unit is used for distributing energy to the high-voltage accessories according to the data information collected by the battery management system and the data information collected by the high-voltage accessories and the sequence of preset energy distribution priorities. The vehicle control unit can distribute energy to the high-voltage accessories according to the preset energy distribution priority sequence. When the temperature is low or the electric quantity of the battery is low, it can be avoided that the power used by the electric equipment exceeds the discharging capacity of the battery, over-discharging of the battery is prevented, the safety of the electric vehicle is improved, and the cruising ability of the electric vehicle is enhanced.
本申请提供了一种电动汽车高压附件的能量管理系统,其特征在于,包括:整车控制器、电池管理系统以及高压附件,整车控制器、电池管理系统和高压附件与CAN总线通讯连接。电池管理系统和高压附件采集各自的数据信息,并将数据信息通过CAN总线传递给整车控制器。整车控制器用于根据电池管理系统采集的数据信息和高压附件采集的数据信息,按照预先设置的能量分配优先级的顺序对高压附件分配能量。整车控制器可以按照预先设置的能量分配优先级的顺序对高压附件分配能量,可以在温度较低或电池的电量较低时,避免用电设备使用的功率超过电池的放电能力,防止电池过放电,提高电动汽车安全性,增强电动汽车的续航能力。
Energy management system and method for high-voltage accessories of electric vehicle and intelligent vehicle
电动汽车高压附件的能量管理系统及其方法、智能汽车
2022-01-07
Patent
Elektronische Ressource
Chinesisch
Intelligent energy management method for electric vehicle
Europäisches Patentamt | 2024
|