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原文传递 Fuel Economy Test Development for MD/HD Diesel Engines:Methodology and Experience

题名：	Fuel Economy Test Development for MD/HD Diesel Engines:Methodology and Experience
正文语种：	中文
作者：	John Sparrow Dave Horstman
作者单位：	Automotive Research, USA
关键词：	engine oil fuel economy diesel engine cycle design test procedure
摘要：	Due to recent legislation on CO2 emissions, Heavy Duty OEM's and their suppliers have had an increased interest in improving vehicle fuel economy. Many aspects are being investigated including vehicle aerodynamics, tire rolling resistance, waste heat recovery, engine fuel efficiency, and many others. Crankcase oils offer a cost-effective mechanism to reduce engine friction and increase engine fuel efficiency. The potential gains realized by optimized fuel-efficient oils are relatively small, on the order of 1%~3%. There- fore, in order to develop these oils, formulators must have a robust, repeatable, and realistic test method for differentiation. To address this need, Intertek has been involved with developing fuel economy tests for many years, starting with what became the Sequence VI test for gasoline passenger car oils in the early 1990's. Most recently, Intertek has helped develop different FE programs to support the MD and HD diesel industry. Examples of engine platforms include: Cummins 5. 9 and 15L, Ford 6. 7L, CAT C13/15 and Mack MP8. Realizing small improvements in fuel consumption requires attention to detail in the set-up and execution of the test procedure in order to report results with confidence. This paper discusses some of the key ingredients to a repeatable test procedure, including instrumentation, control, cycle design, and specific engine effects. Often times, the most challenging variable is the engine itself.
会议日期：	20171024
会议举办地点：	上海
会议名称：	第19届亚太汽车工程年会暨2017中国汽车工程学会年会
出版日期：	1024-01-20
母体文献：	第19届亚太汽车工程年会暨2017中国汽车工程学会年会论文集