Integrated control of torque and emission of a diesel engine based on LPV‐MPC

Sun, Mengge; Hu, Yunfeng; Xu, Fang; Gao, Jinwu; Chen, Hong

doi:10.1049/iet-cta.2020.0699

Cited by 2 publications

(2 citation statements)

References 37 publications

(35 reference statements)

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“…In addition, the combustion process of diesel engines has strong nonlinearity, time-varying model parameters and time delays. The specific engine control process can be found in Sun et al 18 and Hu et al 30 Thus, in the simulation, we assume that the underlying engine system has been well controlled and can meet the torque requirements in the vehicle planning process.…”

Section: Simulation Experiments Based On Gt-power and Analysismentioning

confidence: 99%

“…The existing research only optimizes individual vehicles and cannot obtain a comprehensive optimal result for the whole platoon; it also only optimizes single fuel consumption or the emissions index during vehicle formation, and does not consider the trade-off relationship between the formation conditions of NO x and fuel consumption. 18 As show in Figure 1, the relative fuel consumption and relative NO x emissions cannot achieve the ideal point at the same time. Power system performance information is not added to vehicle level optimization, which may increase the burden on the power system.…”

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confidence: 96%

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Heavy-duty diesel vehicle formation with transient integrated control of fuel consumption and emission in an intelligent network environment

Chen

Sun

2022

Proceedings of the Institution of Mechanical Engineers, Part I:

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Platoon formation has attracted extensive attention recently due to its potential to significantly reduce fuel consumption and emissions. For the problem of optimizing vehicle platoon formation, existing methods can only ensure the optimal operation of a single vehicle, but not the overall optimal fuel consumption and emissions of a platoon. In this study, a new optimization control method is proposed for the formation process of diesel commercial vehicles, that solves the transient fuel consumption and NOx emissions integrated optimization problem for the whole platoon. First, mathematical models of instantaneous vehicle fuel consumption and NOx emissions are established by polynomial fitting, and an optimization objective function considering overall fuel consumption, NOx emissions and vehicle acceleration of the whole platoon is given. Second, the relative distance, velocity and acceleration are considered as constraints, and their upper and lower bounds are determined by comprehensively considering the feasibility of the optimization variables. Third, a grid equivalent method for platoon formation time is proposed that transforms the platoon formation optimization problem with free terminal time into an optimization problem with fixed terminal time, and the optimal solution is obtained by the interior-point method. Finally, a co-simulation with GT-power and MATLAB shows that the proposed method can obtain the comprehensive optimization of fuel consumption and NOx emissions while maintaining safety and ensure the enforceability of the desired vehicle speed and acceleration.

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Section: Simulation Experiments Based On Gt-power and Analysismentioning

confidence: 99%

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confidence: 96%