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基于空燃比控制的可调两级增压动态性能研究 被引量:3

Study on the Transient Performance of Regulate Two Stage Turbocharging Based on the Air-Fuel Ratio Control
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摘要 以6缸可调两级增压柴油机为研究对象,设计了高压涡轮旁通闭环控制系统;建立了前馈式PI闭环控制算法,在瞬态过程中采用根据空燃比及其变化率对旁通阀开度进行调节的策略。瞬态工况试验表明,设计的闭环控制系统和算法对发动机动态响应性能的提高具有明显的效果。当发动机喷油量或者转速增加时,系统判断其进入加速或加载阶段,旁通阀立即关闭,进气压力迅速建立,减弱了涡轮增压系统的迟滞效应;当过量空气系数出现上升趋势时,旁通阀调节至查表所得的开度,待发动机喷油量和转速均不发生变化时,系统判断发动机恢复稳态,进入稳态闭环调节模式。对比其他不含动态判断的情况,发动机动态响应特性明显提升。 Taking a six-cylinder R2S turbocharging diesel engine as the research object, closed-loop control system of high-pressure turbine bypass valve was designed, and the feedforward PI algorithm was established. In transient process, the strategy that the bypass valve opening was controlled in accordance with the air-fuel ratio and its rate of variation was used. The results of the transient operation tests showed that certain closed-loop control system and algorithm had a substantial effect on the improvement of the performance of engine transient response. When the engine fuel injection quantity or speed increase, the system turns into transient condition, the bypass valve shuts down quickly and the boost pressure raises, which weaken the hysteresis effect of turbocharging system. When the excess air coefficient has a rising trend, the bypass valve will adjust to the angle from Map. When engine speed and fuel injection quantity do not change, the engine will turn into steady state, and the system will use the steady state closed-loop regulation mode. Compared with the system without transient judgment condition, the transient performance of engine had improved substantially.
出处 《柴油机》 2016年第3期1-5,16,共6页 Diesel Engine
关键词 增压柴油机 过量空气系数 旁通阀 控制策略 turbocharged diesel engine excess air coefficient bypass valve control strategy
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  • 1魏名山,季凯,马朝臣.车用柴油机的二级增压[J].汽车技术,2005(1):25-28. 被引量:18
  • 2魏名山,尹子明,马朝臣.高速柴油机二级可调增压系统的设计计算方法[J].内燃机工程,2006,27(6):11-14. 被引量:12
  • 3Pfluger F. Regulated Two-Stage Turbocharging-KKK' s New Charging System for Commercial Diesel Engines [ R ]. The Sixth International Conference on Turbocharging and Air Management Systems, 1998 : 127-141. 被引量:1
  • 4Robert C Griffith. Series Turbocharging for the Caterpillar Heavy-Duty on-Highway Truck Engines with ACERT Technology[ C]. SAE Paper 2007-01-1561, 2007. 被引量:1
  • 5Chasse A, Moulin P, Gautier P, et al. Double Stage Turbocharger Control Strategies Development [ C ]. SAE Paper 2008-01-0988, 2008. 被引量:1
  • 6Alexandros Plianos, Richard Stobart. Modeling and Control of Diesel Engines Equipped with a Two-Stage Turbo-System [ C]. SAE Paper 2008-01-1018, 2008. 被引量:1
  • 7Niklas Winkler, Hans-Eric Angstrom. Simulations and Measurements of a Two-Stage Turbocharged Heavy-Duty Diesel Engine Including EGR in Transient Operation[ C]. SAE Paper 2008-01-0539, 2008. 被引量:1
  • 8[2]史绍熙.柴油机设计手册[M].北京:中国农业机械出版社,1984. 被引量:3
  • 9赵令猛,尧命发,刘潜,等.两级涡轮增压对轻型柴油机性能影响的试验研究[C].潍坊:中国内燃机学会燃烧节能净化分会2009年学术年会,2009. 被引量:2
  • 10Pfluger F. Regulated two-stage turbocharging-3K- warner's new charging system for commercial diesel engines [C]. IMechE. The Sixth International Conference on Turbocharging and Air Management Systems, London, UK, 1998. 被引量:1

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