直线发动机换气系统关键参数优化研究
|
摘要
针对直线起动发电一体机(ISG)/发动机系统中的二冲程直线发动机,搭建了GT-Power一维简化模型,并对其换气系统关键结构参数包括扫气比时面值、排气比时面值和扫气箱容积进行仿真优化研究,从而改善换气品质,提高直线发动机性能。研究结果表明:经参数优化后的直线发动机扫气效率为88.15%,提高了1.58%;捕获率为59.38%,提高了28.81%;动力性和经济性也显著提升。
A simplified one-dimensional model was built by the GT-Power for the two-stroke linear engine of a linear integrated starter generator(ISG)power system.The key structural parameters of the engine scavenging system,specific time-area values of scavenge and exhaust as well as the volume of scavenging box,were simulated and optimized in order to improve scavenging quality and the linear engine performance.Results show that the scavenging efficiency of the optimized linear engine reaches 88.15% and the capture ratio 59.38%,1.58% and 28.81% higher than those of the original respectively,the power performance and fuel economy are both obviously improved as well.
A simplified one-dimensional model was built by the GT-Power for the two-stroke linear engine of a linear integrated starter generator(ISG)power system.The key structural parameters of the engine scavenging system,specific time-area values of scavenge and exhaust as well as the volume of scavenging box,were simulated and optimized in order to improve scavenging quality and the linear engine performance.Results show that the scavenging efficiency of the optimized linear engine reaches 88.15% and the capture ratio 59.38%,1.58% and 28.81% higher than those of the original respectively,the power performance and fuel economy are both obviously improved as well.
引文
[1]RINDERKNECHT F,KOCK F.A high efficient energy converter for a hybrid vehicle concept[C]//Los Angeles:26th Electric Vehicle Symposium,2012.
[2]KOSAKA H,AKITA T,MORIYA K,et al.Development of free piston engine linear generator system part 1-investigation of fundamental characteristics[C]//SAE Paper.Detroit,Michigan,USA,2014,2014-01-1203.
[3]李庆峰.自由活塞式内燃发电机的研究[D].上海:上海交通大学,2011.
[4]栾延龙.直线发动机设计开发及起动优化试验研究[D].上海:同济大学,2013.
[5]JIA B R,TIAN G H,FENG H H,et al.An experimental investigation into the starting process of free-piston engine generator[J].Appllied Energy,2015,1(4):798-804.
[6]尹兆雷.直线ISG/发动机系统起动性能及控制策略研究[D].上海:同济大学,2015.
[7]孙晨乐,王哲,邓俊,等.直线式增程器用直线ISG电机结构设计与优化[J].汽车工程,2014(9):1132-1139.SUN C L,WANG Z,DENG J,et al.Structural design and optimization of linear iSG for linear range extender[J].Automotive Engineering,2014(9):1132-1139.
[8]史宗庄.小型二冲程汽油机气口主要参数的计算和确定[J].小型内燃机,2000(3):16-24.SHI Z Z.Calculation and determination of main parameters for ports of small two stroke gasoline engines[J].Small Internal Combustion Engine,2000(3):16-24.
[9]史宗庄,刘元阁.小型二冲程汽油机换气品质的改善[J].小型内燃机,1999(5):23-33.SHI Z Z,LIU Y G.Quality improvement of gas transfer in small two stroke gasoline engines[J].Small Internal Combustion Engine,1999(5):23-33.
[10]栾延龙,李理光,王哲,等.自由活塞发动机关键设计参数及其性能的仿真优化研究[J].内燃机工程,2010,31(2):15-21,26.LUAN Y L,LI L G,WANG Z,et al.Key design parameters and performance optimization of a free-piston engine based on simulation[J].Chinese Internal Combustion Engine Engineering,2010,31(2):15-21,26.
[2]KOSAKA H,AKITA T,MORIYA K,et al.Development of free piston engine linear generator system part 1-investigation of fundamental characteristics[C]//SAE Paper.Detroit,Michigan,USA,2014,2014-01-1203.
[3]李庆峰.自由活塞式内燃发电机的研究[D].上海:上海交通大学,2011.
[4]栾延龙.直线发动机设计开发及起动优化试验研究[D].上海:同济大学,2013.
[5]JIA B R,TIAN G H,FENG H H,et al.An experimental investigation into the starting process of free-piston engine generator[J].Appllied Energy,2015,1(4):798-804.
[6]尹兆雷.直线ISG/发动机系统起动性能及控制策略研究[D].上海:同济大学,2015.
[7]孙晨乐,王哲,邓俊,等.直线式增程器用直线ISG电机结构设计与优化[J].汽车工程,2014(9):1132-1139.SUN C L,WANG Z,DENG J,et al.Structural design and optimization of linear iSG for linear range extender[J].Automotive Engineering,2014(9):1132-1139.
[8]史宗庄.小型二冲程汽油机气口主要参数的计算和确定[J].小型内燃机,2000(3):16-24.SHI Z Z.Calculation and determination of main parameters for ports of small two stroke gasoline engines[J].Small Internal Combustion Engine,2000(3):16-24.
[9]史宗庄,刘元阁.小型二冲程汽油机换气品质的改善[J].小型内燃机,1999(5):23-33.SHI Z Z,LIU Y G.Quality improvement of gas transfer in small two stroke gasoline engines[J].Small Internal Combustion Engine,1999(5):23-33.
[10]栾延龙,李理光,王哲,等.自由活塞发动机关键设计参数及其性能的仿真优化研究[J].内燃机工程,2010,31(2):15-21,26.LUAN Y L,LI L G,WANG Z,et al.Key design parameters and performance optimization of a free-piston engine based on simulation[J].Chinese Internal Combustion Engine Engineering,2010,31(2):15-21,26.