The Influence of Electric Supercharger on Steady State Performance of Engine at Low Speed

doi:10.3969/j.issn.1000-1093.2021.09.003

Abstract

Abstract: Compared with turbocharging，the hybrid electric supercharging technology can improve the air intake volume and responsiveness of engine. The influence of rotating speed of electric supercharger on engine torque，air-fuel ratio and economy is studied to obtain the best working point of electric supercharger. The performance of electric hybrid supercharged engine is simulated based on the power, intake power and combustion effeciency of exhaust lurbocharger. The performance of hybrid electric turbocharged engine was compared with that of the original engine.The results show that the hybrid electric turbocharging system can effectively improve the performance of engine in the low rotating speed and high torque area，the low rotaing speed and high torque area of engine is increased by about 18%，and the fuel consumption is increased by about 16.7% in the area below 220 g/kWh; in the indicated power increment，the power increment of power cycle is far greater than that of the supercharging power;and the supercharging power increment is mainly increased by the supercharging power of the exhaust gas turbocharger. The main reason for the increase in turbocharging power is the enthalpy drop of exhaust gas turbine.

Key words: dieselengine, lowspeedsteadyperformance, electricsupercharger, turbocharger, hybridelectricsupercharger

CLC Number:

TK422

YANG Pantao， CUI Tao， ZHAO Yankai， HE Wenqin， YU Congcong. The Influence of Electric Supercharger on Steady State Performance of Engine at Low Speed[J]. Acta Armamentarii, 2021, 42(9): 1829-1837.

References

［1］ BIN MAMAT A M I，MARTINEZ-BOTAS R F，RAJOO S，et al. Waste heat recovery using a novel high performance low pressure turbine for electric turbo-compounding in downsized gasoline engines［J］.Energy，2015，90(1):218-234.
［2］董素荣，熊春友，刘瑞林，等.高原环境下柴油机增压技术研究与应用［J］.军事交通学院学报，2015，17(5):44-48.
DONG S R，XIONG C Y，LIU R L，et al. Study and application of turbocharging technologies for diesel engine in plateau environment［J］.Journal of Military Transportation University，2015，17(5):44-48. (in Chinese)
［3］ SALEHI R，MARTZ J，STEFANOPOULOU A，et al.Comparison of high- and low-pressure electric superchargeing of a HDD engine: steady state and dynamic air-path considerations［C］∥Proceedings of SAE 2016 World Congress and Exhibition.Detroit，MI，US:SAE，2016.
［4］ HU B，COPELAND C，BRACE C J，et al. A new turboexpansion concept in a twin-charged engine system［C］∥Proceedings of SAE 2014 International Powertrain，Fuels & Lubricants Meeting.Birmingham，UK:SAE，2014.
［5］ BREITBACH H，CHRISTMANN R，GABRIEL H，et al.The second generation eBooster from BorgWarner［J］.MTZ Worldwide，2020，81(9):42-45.
［6］ XIAO B T，HELLSTROM E，KELLY T，et al.Dynamic pressure ratio allocation for electric supercharger and turbocharger coordination［C］∥Proceedings of 2018 Annual American Control Confe-rence. Milwaukee，WI，US:IEEE，2018.
［7］ BAEK S J，WOO S C，KIM Y K，et al.Prediction of turbocharged diesel engine performance equipped with an electric supercharger using 1D simulation［J］.Energy，2019，185:213-228.
［8］ XUE X Y，RUTLEDGE J.Potentials of electrical assist and variable geometry turbocharging system for heavy-duty diesel engine down- sizing ［C］∥Proceedings of SAE World Congress Experience. Detroit，MI，US:SAE，2017.
［9］王文阁.应用电动增压器提高车辆高原行驶的动力性［J］.汽车技术，2004(9):5-8.
WANG W G.Application of electric-powered supercharger to improve acceleration performance of vehicle in plateau region［J］.Automotive Technology，2004(9):5-8.(in Chinese)
［10］ OKUI N.A study on improvement of fuel economy of heavy duty hybrid trucks with new type of hybrid electric assist engine system［J］.SAE International Journal of Commercial Vehicles，2016，9(2)： 41-50.
［11］姚春德，韩伟强.电动增压器对废气涡轮增压器影响的试验研究［J］.机械工程学报，2012，48(8):188-193.
YAO C D，HAN W Q. Research and experimental studies on the influence on turbochar- ger by electric supercharger［J］.Journal of Mechanical Engineering，2012，48(8):188-193. (in Chinese)
［12］ SUZUKI T，HIRAI Y，IKEYA N. Electrically assisted turbocharger as an enabling technology for improved fuel economy in new European driving cycle operation［C］ ∥Proceedings of the 11st International Conference on Turbochargers and Turbocharging.London，UK:IME，2014:217-226.
［13］ RODE M，SUZUKI T，IOSIFIDIS G，et al.Electric turbocharger concept for highly efficient internal combustion engines［J］.MTZ World Wide，2019，80:120-125.
［14］闫嘉楠，周斌，南靖雯，等.电动增压器不同布置方式对涡轮增压器的影响［J］.内燃机，2018(4):5-9，13.
YAN J N，ZHOU B，NAN J W，et al. Impact of two installing methods of electrical supercharging on turbocharger［J］.Internal Combustion Engines，2018(4):5-9，13.(in Chinese)
［15］王敏轩.电动复合增压系统控制方法研究［D］.北京:北京理工大学，2017.
WANG M X.Research on control strategies of electrical compound charging system［D］.Beijing: Beijing Institute of Techno- logy， 2017.(in Chinese)
［16］王帅，吴志军，邓俊，等.发动机排气温度的预测模型研究［C］∥2011中国汽车工程学会年会.北京：中国汽车工程学会，2011.
WANG S，WU Z J，DENG J，et al. Study on prediction model of engine exhaust temperature［C］∥Proceedings of 2011 Annual Meeting of China Society of Automotive Engineers.Beijing:China Society of Automotive Engineers， 2011.(in Chinese)
［17］韩恺，赵长禄，郭子安.车用增压发动机匹配仿真方法研究［J］.车用发动机，2009(5):12-15.
HAN K，ZHAO C L，GUO Z A. Research on matching simulation method of vehicle turbocharged engine［J］.Automotive Engine，2009(5):12-15.(in Chinese)

[1]	GUO Shenggang, WANG Jianping, ZHAO Zhongcheng, CHENG Jingjing, TIAN Xinwei. The Effect of Metal Doping on the Friction Performance of DLC Coating for Piston Pins of Highly-strengthened Diesel Engine [J]. Acta Armamentarii, 2021, 42(4): 715-722.
[2]	YU Fei， LIU Bolan， YAN Chao， HAN Yaohui， WANG Wentai. Characteristics of Electric Variable Valve Timing Mechanism of Diesel Engine [J]. Acta Armamentarii, 2021, 42(3): 468-477.
[3]	HONG Zhouzhensen, ZHANG Hong, MA Chaochen, WU Xintao. Multi-field Stress Response of Centrifugal Compressor Impeller in Variable Altitude Environment [J]. Acta Armamentarii, 2021, 42(3): 478-486.
[4]	GU Cheng, QIAO Xinyong, HAN Lijun. Analysis about the Influences of Different Fuels on the Combustion Stability of a Heavy Duty Diesel Engine [J]. Acta Armamentarii, 2020, 41(3): 426-433.
[5]	QIANG Yongping， LI Haiying， ZHANG Xiaoqin， CAI Zhongzhou， ZHU Weiqing， LI Yufeng, GONG Yongxing. Experimental Research on Effect of Return Water Temperature on the Combustion Progress in a Diesel Engine [J]. Acta Armamentarii, 2020, 41(2): 222-230.
[6]	ZHAO Jianhua， YING Yuchen， GUO Chengbao. CalculationTest and Degaussing Optimization of Magnetic Field in Diesel Engine [J]. Acta Armamentarii, 2020, 41(2): 350-355.
[7]	ZHANG Shuo， ZHAO Zhenfeng， DONG Xuefei， YE Ying. Research and Optimization of Turbocharging Matching for Two-stroke Aero Engine [J]. Acta Armamentarii, 2020, 41(1): 135-142.
[8]	LI Jiawei, CUI Tao, LIU Yuhang, SHI Shuainan, SUN Qiang. Construction for Online Observer Based on Exhaust Gas Temperature Dynamic Model [J]. Acta Armamentarii, 2019, 40(8): 1562-1571.
[9]	WANG Ziyu， ZHANG Yan， WANG Lei， LIU Jinlong， BAI Honglin， LI Yufeng. Effect of LIVC Miller Cycle on Combustion and Gas Exchange on a Highly Intensified Single-cylinder Diesel Engine [J]. Acta Armamentarii, 2019, 40(1): 8-17.
[10]	WANG Xu-dong， XIONG Chun-hua， LU Chang-bo， AN Gao-jun， WANG Feng. Heat Balance Experiment of Polyether Oxygenated Fuel for Diesel Engine in Plateau Environment [J]. Acta Armamentarii, 2018, 39(8): 1473-1478.
[11]	LIU Yong-feng，WANG Long-fei，LIU Sheng，YIN Yu-ting，YANG Zhen-huan. Effect of Altitude on Distribution of In-cylinder Heat Flux [J]. Acta Armamentarii, 2018, 39(6): 1049-1057.
[12]	LIU Yu-hang, ZHANG Fu-jun, GAO Hong-li, WANG Su-fei. Study of Short-circuit of Fresh Air in Opposed-piston Two-stroke Diesel Engine [J]. Acta Armamentarii, 2018, 39(6): 1058-1065.
[13]	LIU Yu-hang, ZHANG Fu-jun, MU Lian-hao, GAO Hong-li, WANG Su-fei. Research on Completion Ratios of Scavenging in Scavenging Sub-phases of Opposed-piston Two-stroke Diesel Engine [J]. Acta Armamentarii, 2018, 39(3): 428-435.
[14]	TAN Pi-qiang, WANG De-yuan, WANG Cheng-guan, LI Yuan, LOU Di-ming, LI Yun-guang, LIU Sheng, YANG Zhen-huan. Performance Optimization of Heavy-duty Diesel Engine in Plateau Environment [J]. Acta Armamentarii, 2018, 39(3): 436-443.
[15]	ZHAO Wen-zhu， WANG Xian-cheng， ZHAO Yong-dong， SUN Zhi-xin， XU Dong-dong. Research on the Effect of Diesel Injector Nozzle Deposit on Spray Characteristics of Diesel Engine [J]. Acta Armamentarii, 2018, 39(2): 217-223.