GPF temperature determination method and device, medium and computer equipment

• Main Authors: SHI YUE, SUI MINGMING, LIU HUI, ZHOU GUANG, ZHU QIANG
• Format: Patent
• Language: Chinese; English
• Published: 27.05.2022
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; 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; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

The invention provides a GPF temperature determining method and device, a medium and computer equipment. The GPF temperature determining method comprises the steps that the corresponding current catalytic converter temperature when waste gas reaches a catalytic converter and the current air inlet temperature of an engine are obtained; determining a first temperature calibration coefficient according to the current vehicle speed and the current environment temperature; determining a second temperature calibration coefficient according to the current circulating air inflow; based on the current catalyst temperature, the first temperature difference value between the current catalyst temperature and the current air inlet temperature, the first temperature calibration coefficient and the second temperature calibration coefficient, the GPF temperature before current filtering is determined; determining the GPF temperature after the current filtering based on the target filtering coefficient, the GPF temperature be