柴油机效率校准模型的仿真研究
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摘要
为了提高车辆的燃油经济性以及内燃机的性能,车辆传动系统与发动机之间的优化系统匹配已成为非常重要的技术问题。出于这个原因,对发动机和车辆性能改进模拟研究的需求不断增加。但总的来说,由于发动机模拟和车辆模拟均需要初始发动机校准图输入,因此需要简单的发动机校准方法来高效配置各种虚拟发动机校准图设置。在此背景下,以废气门涡轮增压器(WGT)冷却-废气再循环(EGR)柴油发动机校准为例,提出了使用基于测试的平均值发动机模型作为合适的发动机校准图设置方法。通过各种发动机测试对发动机校准模型的可行性进行确认。最后将所述模型应用于柴油发动机废气循环和涡轮增压的仿真计算,以获取不同运行条件下发动机性能曲线图。
Recently, in order to improve the fuel economy of the vehicle and the performance of the internal combustion engine, the optimal system matching between the vehicle drive system and the engine has become a very important technical problem. For this reason, the demand for simulation research on engine and vehicle performance improvement has increased. However, in general, since both engine simulation and vehicle simulation require an initial engine calibration map input, a simple engine calibration method is needed to efficiently configure various virtual engine calibration map settings. In this context, the exhaust gas gate turbocharger(WGT) cooling-exhaust gas recirculation(EGR) diesel engine calibration is taken as an example to propose a test-based average engine model as an appropriate engine calibration map setting method. The feasibility of the engine calibration model is confirmed through various engine tests. Finally, the model was applied to the simulation of the exhaust gas cycle and turbocharging of a diesel engine to obtain the engine performance curve under different operating conditions.
Recently, in order to improve the fuel economy of the vehicle and the performance of the internal combustion engine, the optimal system matching between the vehicle drive system and the engine has become a very important technical problem. For this reason, the demand for simulation research on engine and vehicle performance improvement has increased. However, in general, since both engine simulation and vehicle simulation require an initial engine calibration map input, a simple engine calibration method is needed to efficiently configure various virtual engine calibration map settings. In this context, the exhaust gas gate turbocharger(WGT) cooling-exhaust gas recirculation(EGR) diesel engine calibration is taken as an example to propose a test-based average engine model as an appropriate engine calibration map setting method. The feasibility of the engine calibration model is confirmed through various engine tests. Finally, the model was applied to the simulation of the exhaust gas cycle and turbocharging of a diesel engine to obtain the engine performance curve under different operating conditions.
引文
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13王海燕,赫伟建,张旭升,等.涡轮增压器热力学模型与柴油机动态仿真[J].内燃机工程,2017,38(2):128-134
14胡绪昌,沈小波,项卫东,等.基于遗传算法整定控制的柴油机调速系统研究[J].船舶工程,2015,37(S1):150-152+240
15贾和坤,尹必峰,何建光,等.内部废气再循环柴油机燃烧过程分析及排放性能试验[J].农业工程学报,2015,31(10):37-42
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2张斌,吴淑梅,韩峰,等.联合GT及Matlab的柴油机虚拟标定[J].内燃机工程,2017,38(4):139-142+150
3韩晓梅,田威,林学东,等.废气再循环瞬态修正控制策略对重型柴油机排放性能的影响[J].西安交通大学学报,2018(3):1-6
4陈钢,刘毅,朱爱国,等.VGT涡轮增压器涡轮级性能仿真预测研究[J].车用发动机,2017(6):79-83
5黄林,程刚,许伟,等.某型舰用四冲程柴油机键合图建模与仿真[J].内燃机学报,2017,35(6):561-568
6许广举,赵洋,李铭迪,等.废气再循环系统参数对柴油机燃烧特征的影响[J].环境科学研究,2017,30(12):1954-1960
7马兴兴,马志刚,于书海,等.单缸EGR发动机压缩比优化及涡轮增压器匹配研究[J].车用发动机,2017(4):59-62+67
8熊兴旺,马凡华,黄跃.20%HCNG发动机试验研究与平均值建模[J].内燃机工程,2017,38(4):134-138
9郭海龙,陈昊,张永栋.阿特金森循环发动机平均值模型的辨识研究[J].筑路机械与施工机械化,2017,34(8):110-114+118
10董素荣,刘瑞林,刘泽坤,等.带废气调节阀的可变几何涡轮增压器性能试验研究[J].汽车技术,2017(5):55-57
11管聪,陈辉,周科.涡轮增压器切断对二冲程柴油机的影响[J].中国航海,2016,39(4):19-23+51
12潘锁柱,彭义增,韩伟强,等.柴油机进气门晚关系统关键参数对进气性能的影响研究[J].中国机械工程,2015,26(24):3312-3317
13王海燕,赫伟建,张旭升,等.涡轮增压器热力学模型与柴油机动态仿真[J].内燃机工程,2017,38(2):128-134
14胡绪昌,沈小波,项卫东,等.基于遗传算法整定控制的柴油机调速系统研究[J].船舶工程,2015,37(S1):150-152+240
15贾和坤,尹必峰,何建光,等.内部废气再循环柴油机燃烧过程分析及排放性能试验[J].农业工程学报,2015,31(10):37-42
16黄加亮,项勇兵,尹自斌,等.压缩比对4190型船用柴油机性能的影响[J].中国航海,2014,37(3):15-20