Compositional determination of liquefied petroleum gas: Improving engine cold start performance in multipoint LPG-injected engines

液化石油气的成分测定：改善多点液化石油气喷射发动机的冷启动性能

• 批准号: LP0453768
• 负责人: Prof Chris Manzie
• 金额: $ 6.92万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-10-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0453768
• 关键词: Compositional; determination; liquefied; petroleum; gas

Unlike gasoline, the composition of liquefied petroleum gas (LPG) is subject to change depending on a variety of factors including reservoir location and local market pricing. During normal automotive multipoint injection engine operation, closed loop feedback from engine sensors allows the effects of the compositional variations to be overcome and the engine to operate close to optimal levels. However during cold start, the feedback sensors are not operational, and engine performance may deteriorate due to unknown fuel composition - in the worst case the engine may not start at all. This project aims to develop unique methods of estimating the composition of LPG based on existing sensor information to improve performance during cold start.

与汽油不同，液化石油气（LPG）的成分会根据各种因素而变化，包括储存地点和当地市场定价。在正常的汽车多点喷射发动机操作期间，来自发动机传感器的闭环反馈允许克服组成变化的影响并且允许发动机接近最佳水平操作。然而，在冷起动期间，反馈传感器不工作，并且发动机性能可能由于未知的燃料成分而恶化-在最坏的情况下，发动机可能根本不能起动。该项目旨在开发基于现有传感器信息估计LPG成分的独特方法，以提高冷启动期间的性能。