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	Suppression of super-knock in TC-GDI engine using two-stage injection in intake stroke(TSII)
	WANG Zhi ; XU YaQi ; WANG JianXin ; WANG Zhi ; XU YaQi ; WANG JianXin
	2016-03-30 ; 2016-03-30
关键词	turbocharged GDI engine super-knock injection strategies two-stage injections in intake stroke(TSII U464
其他题名	Suppression of super-knock in TC-GDI engine using two-stage injection in intake stroke(TSII)
中文摘要	Turbocharging and direct injection are main technologies used for energy-saving gasoline engines.But the biggest challenge is super-knock,whose mechanism is unclear and has no effective strategy to suppress this super-knock until now.The effects of injection strategies on super-knock were experimentally investigated in a turbocharged GDI engine.It was found that two-stage injections during intake stroke(TSII)can eliminate super-knock.Meanwhile,the fuel consumption,emissions and exhaust temperature can keep optimized level.By sweeping the start of the 1st injection(SOI1),end of the 2nd injection(EOI2)and the split injection ratios(ROI2)using 5000 cycles evaluation test at low-speed high load operating point,the optimized injection strategy for the typical TC-GDI engine is TSII with SOI1 at middle of intake stroke,EOI2 at end of intake stroke,and ROI2 of 0.3.; Turbocharging and direct injection are main technologies used for energy-saving gasoline engines. But the biggest challenge is super-knock, whose mechanism is unclear and has no effective strategy to suppress this super-knock until now. The effects of injection strategies on super-knock were experimentally investigated in a turbocharged GDI engine. It was found that two-stage injections during intake stroke(TSII) can eliminate super-knock. Meanwhile, the fuel consumption, emissions and exhaust tem- perature can keep optimized level. By sweeping the start of the 1st injection(SOI1), end of the 2nd injection(EOI2) and the split injection ratios(ROI2) using 5000 cycles evaluation test at low-speed high load operating point, the optimized injection strategy for the typical TC-GDI engine is TSII with SOI1 at middle of intake stroke, EOI2 at end of intake stroke, and ROI2 of 0.3.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144716]
专题	清华大学
推荐引用方式 GB/T 7714	WANG Zhi,XU YaQi,WANG JianXin,et al. Suppression of super-knock in TC-GDI engine using two-stage injection in intake stroke(TSII)[J],2016, 2016.
APA	WANG Zhi,XU YaQi,WANG JianXin,WANG Zhi,XU YaQi,&WANG JianXin.(2016).Suppression of super-knock in TC-GDI engine using two-stage injection in intake stroke(TSII)..
MLA	WANG Zhi,et al."Suppression of super-knock in TC-GDI engine using two-stage injection in intake stroke(TSII)".(2016).

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