Closed-loop monitoring method for fuel injection of fuel injector and related equipment

The embodiment of the invention discloses a closed-loop monitoring method for oil injection of an oil injector and related equipment. The actual execution state of the oil injector can be effectively monitored. The method comprises the steps that fuel injection quantity information of a fuel injector is obtained; expected power-on time is determined according to the fuel injection quantity information; controlling the oil injector to inject oil according to the expected power-on time, and determining target power-on time; judging whether a power-on time difference value between the expected power-on time and the target power-on time is within a power-on time constraint range or not; and if not, the oil sprayer is controlled to stop spraying. 本申请实施例公开了一种喷油器喷油闭环监控方法及相关设备，能够对喷油器的实际执行状态进行有效的监控。本申请方法包括：获取喷油器的喷油量信息；根据所述喷油量信息确定期望通电时间；根据所述期望通电时间控制所述喷油器进行喷油，并确定目标通电时间；判断所述期望通电时间和所述目标通电时间的通电时间差值是否在通电时间约束范围内；若否，则控制所述喷油器进行停喷操作。