Abstract This paper proposes a nonlinear Economic Model Predictive Control (eMPC) strategy for the airpath management of diesel engines with dual-loop Exhaust Gas Recirculation (EGR) and Variable Nozzle Turbocharger (VNT). The controller directly controls the VNT and dual-loop EGR valves to simultaneously minimise NOx, soot and pumping loss. The novelty of this management strategy is to use a merged controller to replace a conventional combination of supervisory and tracking controllers, as well as eliminating the offline determination of the intake manifold pressure and cylinder oxygen concentration set points. The eMPC computes the set points online based on the engine operating condition, state feedback and the weightings of each economic objective, namely NOx, soot and fuel economy. The eMPC is simulated with an experimentally validated EURO 6 2L four-cylinder engine model. The performance of the eMPC is compared to a production controller over the Worldwide harmonised Light vehicles Test Cycles (WLTC). Compared to the production controller, the eMPC demonstrates NOx and soot emission reductions as well as improved torque tracking and fuel economy.

中文翻译：

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使用经济型 MPC 同时控制具有双回路 EGR 和 VNT 的柴油发动机的 NOx、烟尘和燃油经济性

摘要 本文提出了一种非线性经济模型预测控制 (eMPC) 策略，用于具有双回路废气再循环 (EGR) 和可变喷嘴涡轮增压器 (VNT) 的柴油发动机的气路管理。控制器直接控制 VNT 和双回路 EGR 阀，同时最大限度地减少 NOx、烟尘和泵送损失。这种管理策略的新颖之处在于使用合并的控制器来代替监控和跟踪控制器的传统组合，以及消除进气歧管压力和气缸氧气浓度设定点的离线确定。eMPC 根据发动机运行状况、状态反馈和每个经济目标（即 NOx、烟尘和燃油经济性）的权重在线计算设定点。eMPC 使用经过实验验证的 EURO 6 2L 四缸发动机模型进行模拟。将 eMPC 的性能与全球统一轻型车辆测试循环 (WLTC) 中的生产控制器进行比较。与生产控制器相比，eMPC 展示了 NOx 和烟尘排放减少以及改进的扭矩跟踪和燃油经济性。