高压共轨柴油机工作不均匀性信号控制仿真研究
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摘要
以YN30高压共轨柴油机为研究对象,以不均匀性检测结果(不均匀信号)为基础,提出了一种完整地消除发动机工作不均匀性的油量修正控制策略。通过对控制部分的主要部件PI积分器进行设计以及对外围控制策略进行设计,实现了为各缸工作不均匀提供实时、准确修正油量的目标。仿真结果表明,发动机不均匀性的分区控制,可节约大量的计算机内存,提高控制速度和控制精度;PI积分控制可准确计算各缸修正油量,有效消除工作不均匀性。
With YN30 high pressure common rail diesel engine as the research object and non-uniformity detection result(non-uniformity signal) as the research basis, a complete fuel compensation control strategy to eliminate non-uniformity of engine operation was proposed. The PI integrator, the main component of the control part, and the peripheral control strategy is designed. The goal of providing real-time and accurate correction of fuel quantity for uneven working of each cylinder is realized. The simulation results show that the non-uniform partition control of the engine can save a lot of computer memory and improve the control speed and precision. PI integral control can accurately calculate the fuel compensation of each cylinder and effectively eliminate the inhomogeneity of work.
With YN30 high pressure common rail diesel engine as the research object and non-uniformity detection result(non-uniformity signal) as the research basis, a complete fuel compensation control strategy to eliminate non-uniformity of engine operation was proposed. The PI integrator, the main component of the control part, and the peripheral control strategy is designed. The goal of providing real-time and accurate correction of fuel quantity for uneven working of each cylinder is realized. The simulation results show that the non-uniform partition control of the engine can save a lot of computer memory and improve the control speed and precision. PI integral control can accurately calculate the fuel compensation of each cylinder and effectively eliminate the inhomogeneity of work.
引文
1周龙宝.内燃机学(第2版)[M].北京:机械工业出版社,2009
2 李建秋,欧阳明高,周明,等.柴油机各缸工作不均匀程度对性能的影响分析[J].交通运输工程学报,2001,1(3):50-53
3 李建秋,欧阳明高.汽车发动机曲轴时段信号波动规律分析[J].内燃机学报,1999,17(4):416-419
4 李学民,于秀敏,高跃,等.柴油机怠速分缸均衡控制的试验研究[J].内燃机工程,2008,29(2):62-65
5 李建秋,欧阳明高.汽车发动机各缸工作均匀性的反馈控制[J].清华大学学报(自然科学版),1999,39(11):65-68
6 Taraza D., Henein N. A., Bryzik W. The frequency analysis of the crankshaft's speed variation:A reliable tool for diesel engine diagnosis[J]. Journal of Engineering for Gas Turbines and Power, 2001(4):428-432
7 周泉,王贵勇,申立中.基于带通滤波的电控柴油机各缸不均匀性检测[J].汽车工程,2012,34(9):825-829
8 Nieuwstadt M J van,Kolmanovsky I V. Detecting and correcting cylinder imbalance in direct injection engines[J]. Journal of Dynamic Systems, Measurement, and Control, 2001(9):413-423
2 李建秋,欧阳明高,周明,等.柴油机各缸工作不均匀程度对性能的影响分析[J].交通运输工程学报,2001,1(3):50-53
3 李建秋,欧阳明高.汽车发动机曲轴时段信号波动规律分析[J].内燃机学报,1999,17(4):416-419
4 李学民,于秀敏,高跃,等.柴油机怠速分缸均衡控制的试验研究[J].内燃机工程,2008,29(2):62-65
5 李建秋,欧阳明高.汽车发动机各缸工作均匀性的反馈控制[J].清华大学学报(自然科学版),1999,39(11):65-68
6 Taraza D., Henein N. A., Bryzik W. The frequency analysis of the crankshaft's speed variation:A reliable tool for diesel engine diagnosis[J]. Journal of Engineering for Gas Turbines and Power, 2001(4):428-432
7 周泉,王贵勇,申立中.基于带通滤波的电控柴油机各缸不均匀性检测[J].汽车工程,2012,34(9):825-829
8 Nieuwstadt M J van,Kolmanovsky I V. Detecting and correcting cylinder imbalance in direct injection engines[J]. Journal of Dynamic Systems, Measurement, and Control, 2001(9):413-423