The invention discloses a high-voltage system architecture and a control strategy for controlling double motors by a single MCU (Microprogrammed Control Unit), and the control strategy specifically comprises the following steps: S1, the MCU/BMS/OBC/MCU/DCDC is hung on the same Can bus, and can communicate with each other; s2, the VCU controller collects a top-mounted switch signal and carries out driver intention processing; s3, when the vehicle meets all the following conditions at the same time, the VCU sends an instruction to the MCU, and instruction information is that the three contactors S4, S5 and S6 are switched off, and the three contactors S1, S2 and S3 are switched on; and S4, after receiving the instruction information of the VCU, the MCU executes corresponding actions, and feeds back the open state of the three contactors S4, S5 and S6 and the closed state of the three contactors S1, S2 and S3 to the VCU. According to the invention, the function of controlling two sets of motors by one MCU can be realized, the cost of the whole vehicle can be greatly reduced, meanwhile, the probability of failure of parts is reduced, and the operation is safe and reliable.
本发明公开了单MCU控制双电机的高压系统架构和控制策略,具体包括以下步骤:步骤S1,MCU/BMS/OBC/MCU/DCDC挂接在同一条Can总线上,相互之间可以进行通讯;步骤S2,VCU控制器采集上装开关信号并进行驾驶员意图处理;步骤S3,当车辆同时满足以下所有条件时,VCU发送指令给MCU,指令信息为断开S4/S5/S6三个接触器,闭合S1/S2/S3三个接触器;步骤S4,MCU收到VCU指令信息后,执行相应的动作,并将S4/S5/S6三个接触器断开状态,S1/S2/S3三个接触器闭合状态反馈给VCU。本发明能够实现了一个MCU控制两套电机的功能,整车成本会大大降低,与此同时降低了零部件失效的概率,安全可靠运行。
High-voltage system architecture and control strategy for controlling double motors by single MCU (Microprogrammed Control Unit)
一种单MCU控制双电机的高压系统架构和控制策略
2024-07-09
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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