气候变化领域集成服务门户(CCPortal): Simultaneous NOXand CO2Reduction for Meeting Future California Air Resources Board Standards Using a Heavy-Duty Diesel Cylinder Deactivation-NVH Strategy

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DOI	10.4271/03-13-02-0014
	Simultaneous NOXand CO2Reduction for Meeting Future California Air Resources Board Standards Using a Heavy-Duty Diesel Cylinder Deactivation-NVH Strategy
	Neely G.; Sharp C.; Pieczko M.; McCarthy J.E.
发表日期	2019
ISSN	19463936
卷号	13 期号:2
英文摘要	Commercial vehicles require continual improvements in order to meet fuel consumption standards, improve diesel aftertreatment (AT) system performance, and optimize vehicle fuel economy. Simultaneous reductions in both CO2 and NOX emissions will be required to meet the upcoming regulatory targets for both EPA Phase 2 Greenhouse Gas Standards and new Low NOX Standards being proposed by the California Air Resources Board (CARB). In addition, CARB recently proposed a new certification cycle that will require high NOX conversion while vehicles are operating at lower loads than current regulatory cycles require. Cylinder deactivation (CDA) offers a powerful technology lever for meeting these two regulatory targets on commercial diesel engines. There have been numerous works in the past year showing the benefits of diesel CDA for elevating exhaust temperatures during low-load operation where it is normally too cold for AT to function at peak efficiency. At the same time, CO2 and fuel consumption are reduced through a combination of lower pumping and friction losses and improved thermal efficiency in the cylinders that are still firing. However, CDA has the potential to alter the vehicle vibration, and therefore a strategy must be developed to mitigate these NVH issues while taking advantage of the performance benefits mentioned previously. This article focuses on demonstrating the merits of diesel CDA at low load on a heavy-duty diesel engine in a dynamometer test cell. Results show: 1An NVH recipe to minimize system vibration when using CDA; 2Exhaust temperature increase and fuel savings at low load operating modes; 3Ability to get the AT hot from a cold start using CDA combined with elevated idle speeds; 4CDA operation over HD FTP and the CARB proposed LLC. © 2020 Eaton Intelligent Power, Ltd.
英文关键词	Aftertreatment; CARB; Cylinder deactivation; Diesel; Heavy duty; Low load cycle; Low NOX; NVH
scopus关键词	Carbon dioxide; Commercial vehicles; Efficiency; Fuel economy; Fuels; Gas emissions; Greenhouse gases; Vehicle performance; Vibrations (mechanical); California Air Resources Board; Consumption standards; Cylinder deactivation (CDA); Diesel aftertreatment; Heavy-duty diesel engine; Improved thermal efficiencies; Simultaneous reduction; Vehicle fuel economy; Diesel engines
来源期刊	SAE International Journal of Engines
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176273
作者单位	Southwest Research Institute, United States; Eaton, United States
推荐引用方式 GB/T 7714	Neely G.,Sharp C.,Pieczko M.,et al. Simultaneous NOXand CO2Reduction for Meeting Future California Air Resources Board Standards Using a Heavy-Duty Diesel Cylinder Deactivation-NVH Strategy[J],2019,13(2).
APA	Neely G.,Sharp C.,Pieczko M.,&McCarthy J.E..(2019).Simultaneous NOXand CO2Reduction for Meeting Future California Air Resources Board Standards Using a Heavy-Duty Diesel Cylinder Deactivation-NVH Strategy.SAE International Journal of Engines,13(2).
MLA	Neely G.,et al."Simultaneous NOXand CO2Reduction for Meeting Future California Air Resources Board Standards Using a Heavy-Duty Diesel Cylinder Deactivation-NVH Strategy".SAE International Journal of Engines 13.2(2019).