Optimization of transient VNT opening of diesel engines

Yang Shichen; Wan Mingding; Shen Lizhong; Wang Zhengjiang; Huang Fenlian

doi:10.11975/j.issn.1002-6819.2021.06.005

Volume 37 Issue 6

Mar. 2021

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Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2021 > 37(6): 35-41. > DOI: 10.11975/j.issn.1002-6819.2021.06.005

Yang Shichen, Wan Mingding, Shen Lizhong, Wang Zhengjiang, Huang Fenlian. Optimization of transient VNT opening of diesel engines[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2021, 37(6): 35-41. DOI: 10.11975/j.issn.1002-6819.2021.06.005

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Optimization of transient VNT opening of diesel engines

Yunnan Key Laboratory of Internal Combustion Engine, Kunming University of Science and Technology, Kunming 650500, China

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Received Date: January 14, 2021
Revised Date: March 04, 2021
Published Date: March 14, 2021

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Abstract

Abstract: The opening of a variable nozzle turbocharger (VNT) has a significant impact on the boost pressure, torque response, and emissions of a diesel engine under transient conditions. In order to achieve better diesel engine transient performance, realize the coordinate control of the diesel engine and the VNT nozzle opening and to improve the transient response of the diesel engine while reducing the emissions. In this study, the VNT opening was calibrated on the bench of a high-pressure common-rail diesel engine for better performance. A bench test was conducted to investigate the effect of VNT openings on the transient performance and emissions of diesel engine at the rotation rate of 1 600, 2 000, and 2 600 r/min, when the response load was transient from 0 to 50%, 75%, and 100% at 1, 3, and 5 s of an accelerator pedal. The results show that there was a much more obvious effect of VNT opening on the transient condition of load response time 1, 3, and 5 s from 0 to 50%, 75%, and 100% of the load at 2 000 r/min than that of 3 and 5 s. The response time of boost pressure gradually decreased, while the response time of torque decreased and then increased, as the VNT opening decreased. The NOx volume fraction first increased, then decreased, and finally increased to a stable value, when the response time of accelerator pedal at 1s from 0% to 50%, 75% and 100% at 1 600, 2 000 and 2 600 r/min. The particle number (PN) emission increased gradually with the decrease of VNT opening. A World Harmonized Transient Cycle (WHTC) test was carried out after the optimum VNT opening was obtained at different speeds. The simulation data showed that the VNT opening reduced the intercept and standard deviation for the WHTC cycle torque regression line. The intercept decreased by 0.03 and 0.37 in cold and hot states, while the standard deviation decreased by 0.11 and 1.07, respectively. The NOx brake specific emissions decreased by 7.59% and 2.21% under the WHTC cold and hot cycles, while the particulate matter (PM) brake specific emissions reduced by 8.64% and 25.28%, and the PN brake specific emissions dropped by 6.74% and 12.4%, compared with the original engine. After optimizing the VNT opening, the standard deviation of the actual torque value from the reference value is reduced, and the main pollutants are reduced in different proportions, which shows the feasibility of the coordinated control of the VNT opening to optimize the transient performance and emissions of the diesel engine. The finding can provide a sound reference for the coordinated control of VNT opening under transient operating conditions in a diesel engine.
- diesel engine,
- emissions,
- transient conditions,
- VNT openings,
- WHTC cycle

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References

[1]	黄粉莲，纪威，周炜，等. 车用涡轮增压柴油机加速工况瞬态特性仿真[J]. 农业工程学报，2014，30(3)：63-69.Huang Fenlian, Ji Wei, Zhou Wei, et al. Simulation of transient performance of vehicle turbocharged diesel engine during acceleration process[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2014, 30(3): 63-69. (in Chinese with English abstract)
[2]	Yum K K, Lefebvre N, Pedersen E. An experimental investigation of the effects of cyclic transient loads on a turbocharged diesel engine[J]. Applied Energy, 2017, 185: 472-481.
[3]	Vafaie M H, Dehkordi B M, Moallem P, et al. A new predictive direct torque control method for improving both steady-state and transient-state operations of the PMSM. IEEE Transactions on power electron, 2015, 31(5), 3738-3753.
[4]	张众杰，刘瑞林，夏南龙，等. 车用柴油机瞬态特性劣变机理及优化策略[J]. 军事交通学院学报，2018，20(8)：34-39.Zhang Zhongjie, Liu Ruilin, Xia Nanglong, et al. Transient performance deterioration mechanism and optimization strategy for vehicle diesel engine[J]. Journal of Military Transportation University, 2018, 20(8): 34-39. (in Chinese with English abstract)
[5]	董天普，张付军，刘波澜，等. EGR对涡轮增压柴油机瞬态特性的影响[J]. 内燃机学报，2017，35(2)：118-124.Dong Tianpu, Zhang Fujun, Liu Bolan, et al. Effect of EGR on transient characteristics of turbocharged diesel engine[J]. Transactions of CSICE, 2017, 35(2): 118-124. (in Chinese with English abstract)
[6]	田径，刘忠长，许允，等. 柴油机瞬变过程烟度排放的劣变分析[J]. 内燃机学报，2016，34(2)：125-134.Tian Jing, Liu Zhongchang, Xu Yun, et al. Analysis of soot deterioration in diesel transient process[J]. Transactions of CSICE. 2016, 34(2):125-134. (in Chinese with English abstract)
[7]	Kang H, Farrell P. Experimental investigation of transient emissions (HC and NOx) in a high speed direct injection (HSDI) diesel engine[C]//SAE 2005 Powertrain & Fluid Systems Conference & Exhibition, 2005.
[8]	王敏，杨蓉，叶洲，等. 商用车用电控柴油机增转矩工况的燃烧特性分析[J]. 内燃机工程，2020，41(5)：23-31.Wang Min, Yang Rong, Ye Zhou, et al. Research on combustion characteristics of electronically controlled diesel engine for commercial vehicles at torque-increasing condition[J]. Chinese Internal Combustion Engine Engineering, 2020, 41(5): 23-31. (in Chinese with English abstract)
[9]	田荐伊，陆国祥，徐宏明. 可变增量的EGR控制策略对柴油机瞬态排放的影响[J]. 内燃机学报，2016，34(5)：394-400.Tian Jianyi, Lu Guoxiang, Xu Hongming. Incremental variable EGR strategy for optimizing transient emissions of turbo-charged diesel engines[J]. Transactions of CSICE. 2016, 34(5): 394-400. (in Chinese with English abstract)
[10]	Saad S M, Mishra R. Performance of a heavy-duty turbocharged diesel engine under the effect of air injection at intake manifold during transient operations[J]. Arabian Journal for Science and Engineering, 2019, 44(6): 5863-5875.
[11]	Rakopoulos C D, Dimaratos A M, Giakoumis E G, et al. Exhaust emissions estimation during transient turbocharged diesel engine operation using a two-zone combustion model[J]. International Journal of Vehicle Design, 2009, 49(1-3): 125-149.
[12]	Filipi Z, Wang Y, Assanis D. Variable geometry turbine (VGT) strategies for improving diesel engine in-vehicle response: A simulation study[J]. International Journal of Heavy Vehicle Systems, 2004, 11(3): 303-326.
[13]	Gurel Cetin, Ozmen Elif, Yilmaz Metin, et al. Multi-objective optimization of transient air-fuel ratio limitation of a diesel engine using DoE based pareto-optimal approach[C]//SAE 2017 World Congress Experience, 2017.
[14]	Filipi Z, Wang Y, Assanis D N. Effect of variable geometry turbine (VGT) on diesel engine and vehicle system transient response[C]//SAE 2001 World Congress, 2001.
[15]	周鹏程，王银燕，王贺春，等. 可变截面涡轮增压瞬态性能仿真研究[J]. 船舶工程，2018，40(1)：76-80.Zhou Pengcheng, Wang Yinyan, Wang Hechun, et al. Simulation study of transient characteristics of variable geometry turbocharging[J]. Ship Engineering, 2018, 40(1): 76-80. (in Chinese with English abstract)
[16]	张众杰，刘瑞林，林春城，等. 二级可调增压柴油机高海拔瞬态特性仿真[J]. 内燃机学报，2019，37(5)：393-400.Zhang Zhongjie, Liu Ruilin, Lin Chuncheng, et al. Simulation on transient characteristics of regulated two-stage-turbocharged diesel engine at high altitudes[J]. Transactions of CSICE, 2019, 37(5): 393-400. (in Chinese with English abstract)
[17]	Wijetunge R S, Hawley J G, Vaughan N D. An exhaust pressure control strategy for a diesel engine[J]. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2004, 218(4): 449-464.
[18]	Black J, Eastwood P G, Tufail K, et al. The effect of VGT vane control on pumping losses during full-load transient operation of a common-rail diesel engine[C]//SAE 2007 8th International Conference on Engines for Automobiles, 2007.
[19]	孙万臣，韩永强，刘忠长，等. 可变喷嘴涡轮增压器对车用柴油机瞬态性能的影响[J]. 汽车工程，2006，28(2)：122-124.Sun Wanchen, Han Yongqiang, Liu Zhongchang, et al. Effect of variable nozzle turbocharger on transient performance of automotive diesel engine[J]. Automotive Engineering, 2006, 28(2): 122-124. (in Chinese with English abstract)
[20]	杨殿勇，王忠，历宝录，等. VNT增压柴油机与整车速度瞬态响应的试验分析[J]. 车用发动机，2005(5)：44-47.Yang Dianyong, Wang Zhong, Li Baolu, et al. Analysis of the velocity transient response of VNT in turbocharged diesel &vehicle[J]. VEHICLE ENGINE, 2005(5): 44-47. (in Chinese with English abstract)
[21]	施新，张双双，李斌. 可变几何涡轮与压气机协同调节对柴油机瞬态性能影响的仿真研究[J]. 汽车工程，2014，36(9)：1046-1050.Shi Xin, Zhang Shuangshuang, Li Bin. A simulation study on the effect of coordinated regulation between VGT and VGC on the transient performance of diesel engine[J]. Automotive Engineering, 2014, 36(9): 1046-1050. (in Chinese with English abstract)
[22]	TufailK, Winstanley T, Karagiorgis S, et al. Characterisation of diesel engine transient pumping-loss and control methodology for transient specific fuel consumption (SFC)[C]//SAE 2009 Powertrains Fuels and Lubricants Meeting, 2009
[23]	Llamas X, Eriksson L. Optimal transient control of a heavy duty diesel engine with EGR and VGT[J]. IFAC Proceedings Volumes, 2014, 47(3): 11854-11859.
[24]	Han Y, Zhang L, Liu Z, et al. Investigation of transient deterioration mechanism and improved method for turbocharged diesel engine[J]. Energy, 2016, 116: 250-264.
[25]	郑广勇，于秀敏，侯福建，等. 通过增压器匹配提高发动机瞬态性能[J]. 吉林大学学报：工学版，2013，43(1)：45-50.Zheng Guangyong, Yu Xiumin, Hou Fujian, et al. Turbocharger matching to improve engine transient performance[J]. Journal of Jilin University: Engineering and Technology Edition, 2013, 43(1): 45-50. (in Chinese with English abstract)
[26]	熊兴旺，高俊华，周涛，等. 基于WHTC循环的柴油机颗粒物数量峰值的研究[J]. 汽车工程，2017，39(4)：381-385.Xiong Xingwang, Gao Junhua, Zhou Tao, et al. A study on particulate number peaks in a diesel engine based on WHTC cycle[J]. Automotive Engineering, 2017, 39(4): 381-385. (in Chinese with English abstract)
[27]	国家市场监督管理总局. 重型柴油车污染物排放限值及测量方法(中国第六阶段)：GB17691-2018[S]. 北京：中国环境科学出版社，2018.
[28]	Bai S Z, Han J L, Liu M, et al. Experimental investigation of exhaust thermal management on NOx emissions of heavy-duty diesel engine under the world Harmonized transient cycle (WHTC)[J]. Applied Thermal Engineering, 2018, 142: 421-432.
[29]	Zamboni G, Moggia S, Capobianco M. Effects of a dual-loop exhaust gas recirculation system and variable nozzle turbine control on the operating parameters of an automotive diesel engine[J]. Energies, 2017, 10(1): 47.
[30]	Wu B Y, Zhan Q, Yu X Y, et al. Effects of miller cycle and variable geometry turbocharger on combustion and emissions in steady and transient cold process[J]. Applied Thermal Engineering, 2017, 118: 621-629.

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