x (Nitr'/> Cycle to cycle closed-loop combustion control through virtual sensor in a diesel engine
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Cycle to cycle closed-loop combustion control through virtual sensor in a diesel engine

机译：通过柴油发动机中的虚拟传感器循环循环闭环燃烧控制

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A cycle to cycle closed-loop combustion controller for the management of engine load and NOx (Nitrogen Oxides) emission has been developed and tested for the light-duty FPT F1C Euro VI diesel engine. The closed loop controller exploits the feedback coming from a predictive combustion model used as a virtual sensor and calibrated on real test bench measurements. Thanks to the virtual sensor no direct in cylinder pressure measurement is required. The control system is composed by two separate loops implementing PI and lag regulators, one to control the engine load and the other the NOx. These two quantities are regulated through the correction of the main injected fuel quantity and the start of injection respectively. Nominal values for the two command actions are retrieved from steady state maps, so adding a feed-forward action. Each cylinder is controlled separately so that, in total for the 4 cylinders engine, 8 regulators are used. All the tests necessary to tune the regulators were carried out on the mono-dimensional simulation software GT-Power by Gamma Technologies that has proven to be very effective. The GT power model was also used for the assessment of the controllers: simulations show very encouraging results also in presence of high disturbances on the outputs.
机译：一个循环循环闭环燃烧控制器，用于管理发动机负载和否 x （氮氧化物）已经开发和测试了轻型FPT F1C EURO VI柴油发动机的发射。闭环控制器利用来自用作虚拟传感器的预测燃烧模型的反馈，并在实际测试台测量上校准。由于虚拟传感器无需直接在汽缸压力测量中。控制系统由实现PI和LAG稳压器的两个单独环路组成，一个控制发动机负载和另一个 x 。通过分别校正主要注入的燃料量和注射的开始，对这两种量进行调节。从稳态映射检索两个命令操作的标称值，从而添加前馈操作。每个汽缸单独控制，使得总共对于4个气缸发动机，使用8个调节器。调整监管机构所需的所有测试都是通过被证明非常有效的伽马技术进行单维模拟软件GT-Power。 GT功率模型也用于控制器的评估：模拟也显示出在输出上的高扰动中的令人鼓舞的结果。

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