Regeneration control method and device of particulate matter trap, medium, equipment and vehicle

Abstract

The invention relates to a regeneration control method and device of a particulate matter trap, a medium, equipment and a vehicle. The method comprises the steps that the current carbon loading capacity and the current temperature of the particulate matter trap in the vehicle are obtained in real time; determining whether the vehicle meets a deceleration fuel cut-off condition or not according to the driving state information of the vehicle; and under the condition that the vehicle meets the deceleration fuel cut-off condition, according to the current carbon loading capacity and the current temperature, fuel supply of an engine of the vehicle is controlled in multiple stages so that the particulate matter trap can be regenerated, the control modes of every two adjacent stages for the engine are different, and the control modes of every two adjacent stages for the engine are different. The control mode comprises cutting off the fuel supply of the engine and recovering the fuel supply of the engine. By means of the scheme, full regeneration of the particulate matter trap can be guaranteed, the working efficiency of the particulate matter trap is improved, it is guaranteed that vehicle emission meets the standard, and the risk that the particulate matter trap is burnt out due to the too high temperature can be reduced.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, and in particular, to a regeneration control method, device, medium, equipment and vehicle of a particulate filter. Background technique [0002] Vehicles are commonly used means of transportation in people's daily life. In order to improve the pollution of vehicle emissions to the atmospheric environment, China VI emission regulations have imposed more stringent restrictions on the emissions of gasoline engines and diesel engines, especially increasing the restrictions on particulate emissions. At present, gasoline engine particulate matter filter (GPF, Gasoline Particulate Filter) is generally used in gasoline engine after-treatment systems to filter particulate matter, and diesel engine after-treatment systems generally use diesel engine particulate matter filter (DPF, Diesel Particulate Filter) to filter particulate matter, thereby reducing the number of vehicles. The amount and con...

AI Technical Summary

Problems solved by technology

[0003] With the increase of the engine running time, the carbon accumulation of the particle filter will gradually increase, especially the low-temperature start-up and low-temperature low-speed driving conditions will greatly accelerate the accumulation of carbon, resulting in the blockage of the particle filter and affecting the performance of the engine

The regeneration process of the particulate matter trap is the process of removing accumulated carbon. In related technologies, when controlling the regeneration of the particulate matter trap, it is easy to cause the temperature of the particulate matter trap to be too high and burn out.

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