一种用于涡轮增压柴油机的多变量优化控制方法

A MULTIVARIABLE OPTIMIZING CONTROL METHOD APPLIED TO TURBOCHARGED DIESEL ENGINES

本文提出了对涡轮增压柴油机实行供油定时和增压空气旁通的二变量优化控制的设想,讨论了用自寻最优点控制和模糊控制相结合的方法来实现这一控制,研制了相应的微机控制系统。试验表明,这种控制方法可获得比单独的供油定时控制更好的节能效果。

A two-variable optimizing control strategy used to the injectiion timing and boost air by-pass control of diesel engines is proposed. The control method which combines self-optimizing control and fuzzy control is discussed and employed in the study. A microcomputer-based diesel engine test bed is developed. It is shown, in the experiment, that a better energy saving result can be obtained with this control methed, compared with one variable control of injection timing.