Influence of valve control strategy to improve un-throttle engine performance

被引：0

作者：

Zhou Y. ^{[1
,2
]}

Hong W. ^{[1
,2
]}

Xie F.-X. ^{[1
,2
]}

Liu Y. ^{[1
,2
]}

Gong X. ^{[3
]}

Li X.-P. ^{[1
,2
]}

机构：

[1] State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun

[2] College of Automotive Engineering, Jilin University, Changchun

[3] College of Artificial Intelligence, Jilin University, Changchun

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2024年 / 54卷 / 01期

关键词：

brake specific fuel consumption; internal combustion engine; NO[!sub]x[!/sub] emissions; pumping loss; unthrottle engine; valve control strategy; variable intake and exhaust valves;

D O I：

10.13229/j.cnki.jdxbgxb.20220253

中图分类号：

学科分类号：

摘要：

In order to achieve efficient and clean combustion，the influence of variable intake valve strategy （VIV），variable exhaust valve strategy（VEV）and variable intake valve combine exhaust valve strategy （VICE）on the un-throttle engine performance was studied based on a self-developed variable valve lift actuation. The results show that，compared with the original engine，the three valve control strategies all can effectively improve brake specific fuel consumption（BSFC）and indicated thermal efficiency（ITE）. The VICE strategy showed the most optimal results，for example，BSFC and ITE were optimized by up to 28% and 6% compared to the original engine. Both VIV strategy and VICE strategy can reduce pumping loss，especially for VIV strategy，which can reduce pumping loss up to 36% compared with the original engine. All three strategies can reduce NOx emissions，among which VEV strategy performed best. Different valve strategies showed few effects on THC emissions when NMEP exceeded 0.3 MPa. © 2024 Editorial Board of Jilin University. All rights reserved.

引用

页码：55 / 65

页数：10

共 17 条

[1] Balmelli M, Zsiga N, Merotto L, Et al., Effect of the intake valve lift and closing angle on part load efficiency of a spark ignition engine, Energies, 13, 7, (2020)
[2] Xu Zheng-xin, Fu Jian-qin, Liu Jin-ping, Et al., Comparison of in-cylinder combustion and heat-work conversion processes of vehicle engine under transient and steady-state conditions, Energy Convers Manage, 132, 16, pp. 400-409, (2017)
[3] Millo F, Mirzaeian M, Luisi S, Et al., Engine displacement modularity for enhancing automotive S. I. engines efficiency at part load, Fuel, 180, pp. 645-652, (2016)
[4] Duan Xiong-bo, Fu Jian-qin, Zhang Zhi-zhong, Et al., Experimental study on the energy flow of a gasoline-powered vehicle under the NEDC of cold starting, Appl Therm Eng, 115, pp. 1173-1186, (2017)
[5] Xu Zheng-xin, Liu Jing-ping, Fu Jian-qin, Et al., Analysis and comparison of typical exhaust gas energy recovery bottoming cycles
[6] Wei Sheng-li, Zhao Xi-qian, Liu Xin, Et al., Research on effects of early intake valve closure EIVC miller cycle on combustion and emissions of marine diesel engines at medium and low loads, Energy, 173, pp. 48-58, (2019)
[7] Osorio Julian D, -Alvarez Alejandro Rivera, Et al., Efficiency enhancement of spark-ignition engines using a continuous variable valve timing system for load control[J], Energy, 161, pp. 649-662, (2018)
[8] Bang-lin Deng, Jing Yang, Da-ming Zhang, Et al., The challenges and strategies of butanol application in conventional engines: the sensitivity study of ignition and valve timing[J], Appl Energy, 108, pp. 248-260, (2013)
[9] Zou Peng, Liu Jing-ping, Chen Zheng, Et al., Effect of a novel mechanical CVVL system on economic performance of a turbocharged spark-ignition engine fuelled with gasoline and ethanol blend, Fuel, 263, (2020)
[10] Li Qing-yu, Liu Jing-ping, Fu Jian-qin, Et al., Comparative study on the pumping losses between continuous variable valve lift (CVVL) engine and variable valve timing (VVT) engine, Applied Thermal Engineering, 137, pp. 710-720, (2018)

← 1 2 →