The invention relates to a vehicle high-voltage loop fault protection control method and system, and belongs to the technical field of new energy vehicle control. According to the invention, under the condition that hardware is not newly added, short circuit or abnormal discharge protection of the main loop is realized through the existing Hall sensor of the motor controller, the system safety is improved, and the current protection range in the loop can be expanded by nearly 50%. And meanwhile, aiming at the short-circuit condition of the small load, the actual discharge power of the small load is compared with the required (target) discharge power, so that the small load and the high-voltage wire harness in the loop can be effectively protected from safety risks such as ablation and the like.
本发明涉及一种车辆高压回路故障保护控制方法及系统,属于新能源车辆控制技术领域。本发明能够在不新增硬件的情况下,通过电机控制器现有的霍尔传感器实现对所处主回路短路或异常放电保护,提高系统安全性,且可使得回路中电流保护范围扩大近50%。同时能够针对小负载短路情况,通过对小负载实际放电功率与需求(目标)放电功率进行比对,可有效保护小负载本身及回路中的高压线束不出现烧蚀等安全风险。
Vehicle high-voltage loop fault protection control method and system
一种车辆高压回路故障保护控制方法及系统
2023-04-04
Patent
Electronic Resource
Chinese
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