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Experimental validation of feedback approaches for in-cylinder pressure balancing in SI engines

机译:SI发动机缸内压力平衡反馈方法的实验验证

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This paper, the in-cylinder pressure at top dead centre (TDC) is adopted for evaluating the cycle-to-cycle variability and its four-cycle moving average value is taken as the index for balancing. The control schemes including PI, MVC and MPC arc tested under different fuel injection strategies, one is with fixed fuel supply and the other is under A/F balancing. In fact, the MVC and MPC methods are developed from a simple statistical ARMA model. In order to avoid the effect of parameters setting improperly, an adaptive method is employed in MPC controller. Finally, all the controllers are validated in a car-used six-cylinder SI engine.
机译:本文采用上止点缸内压力(TDC)来评估循环间的变化,并将其四循环移动平均值作为平衡的指标。控制方案包括PI,MVC和MPC,这些方案在不同的燃油喷射策略下进行了测试,一种是固定燃料供应,另一种是在A / F平衡下。实际上,MVC和MPC方法是从简单的统计ARMA模型开发的。为了避免参数设置不当的影响,在MPC控制器中采用了一种自适应方法。最后,所有控制器均在汽车用六缸SI发动机中得到验证。

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