Diesel engine DPF ash removal control method and device

• Main Authors: GAO JIANBIN, SU XUEJING, ZHU MINLIN, WANG XIAOHUI, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 26.04.2024
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

The invention discloses a diesel engine DPF ash removal control method and device.The method comprises the steps that according to the current running state of an engine, the DPF pressure difference is obtained; according to the current running state of the engine, the pressure difference generated by ash and carbon particles is obtained; according to the current operation state of the engine, the pressure difference generated by ash content is obtained; calculating a first ash deposition amount according to the pressure difference generated by the ash content; whether the first ash deposition amount reaches an ash removal threshold value or not is judged; and if the ash removal threshold value is reached, active regeneration is triggered. Therefore, according to the control method for deashing of the DPF of the diesel engine, the accuracy of calculation of the ash deposition amount is improved, and therefore the performance of the engine and the performance of aftertreatment are improved. 本发明公开了一种柴油机DPF清灰的控制