Method for calculating natural gas spraying pulse width during transient process of gasoline and natural gas dual-purpose fuel engine

• Main Authors: ZHANG PENG, ZHANG GUIMING, ZHU HAO, YANG XUEZHU, LI SUWEN, CAI PENG
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2018
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The invention discloses a method for calculating the natural gas spraying pulse width during transient process of a gasoline and natural gas dual-purpose fuel engine. In the method, the oil film quantity in the transient process is calculated, so that the spraying amount of the natural gas obtained through calculation of the gasoline spraying amount can better correspond the current gas inlet amount, the combustion air-fuel ratio of the transient process is more controllable, and emission of pollutants is reduced. 本发明公开了种汽油天然气两用燃料发动机瞬态过程中天然气喷射脉宽的计算方法，其中，在本发明中，由于计算出了瞬态过程中的油膜量，因此通过汽油喷射量计算得到的天然气喷射量可以更好的与当前进气量对应上，使得瞬态过程燃烧空燃比更为可控，减小污染物排放。