Vehicle exhaust particulate matter quantity control method and related device

The invention provides a vehicle exhaust particulate matter quantity control method and a related device, the method is applied to a double-SCR device, the double-SCR device comprises an exhaust pipe, a front urea nozzle, a front-stage SCR, a DOC, a DPF, a rear-stage SCR and a rear urea nozzle, and the method comprises the steps that the current ash loading capacity and the current carbon loading capacity of the DPF are obtained; according to the current ash loading capacity and the current carbon loading capacity, a corresponding particulate matter control strategy is determined; and according to the particulate matter control strategy, the urea spraying amount of the front urea nozzle and the rear urea nozzle is controlled. According to the method, the number of particulate matters exhausted by the vehicle can be effectively controlled. 本申请提供了一种车辆排气的颗粒物数量控制方法及相关装置，应用于双SCR装置，双SCR装置包括排气管、前尿素喷嘴、前级SCR、DOC、DPF、后级SCR和后尿素喷嘴，该方法包括：获取DPF的当前灰载量和当前碳载量；根据当前灰载量和当前碳载量，确定对应的颗粒物控制策略；根据颗粒物控制策略，控制前尿素喷嘴和后尿素喷嘴的尿素喷射量。按照上述方法，能够实