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Modelling and Output Predictive Control of Engine Air Path Systems for Intake Fresh-air and Exhaust Gas Recirculation

机译:发动机空气路径系统的建模与输出预测控制,用于进气新鲜空气和废气再循环

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This paper deals with the control problem of an engine air path system with low pressure exhaust gas recirculation (EGR). The considered air path system with low EGR can be modelled as a system with time-delays due to the transport delay of gas flow from EGR. It results in over intake fresh air, and thus it causes torque overshoot. An output predictive control system is designed for a time delay air path system in order to obtain the desired fresh air mass flow. In the considered system, the intake fresh air mass flow and the EGR rate are taken as the outputs, and the throttle valve and the EGR valve are considered as inputs of the system in this paper. A detailed air path system model with time-delay will also be derived for confirming the effectiveness of the proposed method through numerical simulations.
机译:本文涉及具有低压废气再循环的发动机空气路径系统的控制问题(EGR)。 由于来自EGR的气体流量的运输延迟,所考虑的具有低EGR的空气路径系统可以被建模为具有时滞的系统。 它导致进气新鲜空气,因此导致扭矩过冲。 设计输出预测控制系统用于时间延迟空气路径系统,以获得所需的新鲜空气质量流量。 在考虑的系统中,进气新鲜空气质量流量和EGR率作为输出,并且节流阀和EGR阀被认为是本文的系统的输入。 还将导出具有时间延迟的详细空气路径系统模型,用于通过数值模拟确认所提出的方法的有效性。

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