Research on real-time simulation modelling of a diesel engine based on fuel inter-zone transfer and an array calculation method

Song, Enzhe; Shi, Xingchao; Yao, Chong; Li, Yue

doi:10.1016/j.enconman.2018.10.014

Cited by 9 publications

(2 citation statements)

References 25 publications

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“…The simulation data of the performance simulation of the high-pressure common rail system are used to compare and analyze the data from the test bench of the high-pressure common rail fuel injection system, and to verify the mass under different rail pressures and injection durations. Based on similar research, we aimed to set the error below 5% [5,21]. The results are shown in Figure 5 and Table 1, where the maximum error is less than 5%.…”

Section: Determination Of the Simulation Performance Of The High-pressure Common Rail Systemmentioning

confidence: 99%

Establishment of a Real-Time Simulation of a Marine High-Pressure Common Rail System

Wang

Yao

et al. 2021

Energies

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In this paper, the high-pressure common rail system of the marine diesel engine is taken as case study to establish a real-time simulation model of the high-pressure common rail system that can be used as the controlled object of the control system. On the premise of ensuring accuracy, the real-time simulation should also respond quickly to instructions issued by the control system. The development of the real-time simulation is based on the modular modeling method, and the high-pressure common rail system is divided into submodels, including the high-pressure oil pump, common rail tube, injector, and mass conversion. The submodels are built using the “surrogate model” method, which is mainly composed of MAP data and empirical formulas. The data used to establish the real-time simulation are not only from the empirical research into the high-pressure common rail system, but also from simulations of the high-pressure common rail system undertaken in AEMSim. The data obtained from this real-time simulation were compared with the experimental data to verify the model. The error in fuel injection quality is less than 5%, under different pressures and injection durations. In order to carry out dynamic verification, the PID control strategy, the model-based control strategy, and the established real-time simulation are all closed-loop tested. The results show that the developed real-time simulation can simulate the rail pressure wave caused by cyclic injection according to the control signal, and can feedback the control effect of different control strategies. Through verification, it is clear that the real-time simulation of the high-pressure common rail system can depict the rail pressure fluctuation caused by each cycle of fuel injection, while ensuring the accuracy and responsiveness of the simulation, which provides the ideal conditions for the study of a rail pressure control strategy.

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Section: Determination Of the Simulation Performance Of The High-pressure Common Rail Systemmentioning

confidence: 99%

Establishment of a Real-Time Simulation of a Marine High-Pressure Common Rail System

Wang

Yao

et al. 2021

Energies

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“…This pseudo boundary only prevents the exchange of the mass between the pre-unburned zone and the pre-burned zone, therefore the pre-unburned zone and the pre-burned zone share the same cylinder pressure cyl p and temperature u T . In the reference condition, as shown in Figure 4a, the pseudo boundary is required to guarantee the mass ratio of the gas in the pre-unburned zone over in the pre-burned zone ,, / According to Equation (13) and Equation ( 14), this mass ratio in Equation ( 20) is therefore calculated by the burned mass fraction As a result, the state variables in the pre-unburned zone fulfil the following relation:…”

Section: Quasi-isentropic Processmentioning

confidence: 99%

A Novel Two-Zone Thermodynamic Model for Spark-Ignition Engines Based on an Idealized Thermodynamic Process

Wang

2020

Energies

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The thermodynamic model is a valuable simulation tool for developing combustion engines. The most widely applied thermodynamic models of spark-ignition engines are the single-zone model and the two-zone model. Compared to the single-zone model, the two-zone model offers more detailed in-cylinder thermodynamic conditions, but its governing equations are numerically stiffer, therefore it is restricted when applied in computationally intensive scenarios. To reduce the two-zone model’s stiffness, this paper isolates an idealized thermodynamic process in the unburned zone and describes this idealized thermodynamic process by an algebraic equation. Assisted with this idealized thermodynamic process, this paper builds a novel two-zone model for spark-ignition engines, whose governing equations are simplified to a set of two ordinary differential equations accompanied by a set of three algebraic equations. Benchmarked against the single-zone model and conventional two-zone model, the novel two-zone model is formed and validated by experimental results, and its stiffness is quantitatively evaluated by linearizing its governing equations at simulation steps. The results show that the novel two-zone model inherits the conventional two-zone model’s ability to estimate both zones’ state variables highly accurately while its simplified structure reduces its stiffness down to the level of the single-zone model, accelerating the computation speed.

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Digital Twin-Based Fuel Consumption Model of Locomotive Diesel Engine

Cesur

Abraham

2023

Lecture Notes in Networks and Systems

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Research on real-time simulation modelling of a diesel engine based on fuel inter-zone transfer and an array calculation method

Cited by 9 publications

References 25 publications

Establishment of a Real-Time Simulation of a Marine High-Pressure Common Rail System

Establishment of a Real-Time Simulation of a Marine High-Pressure Common Rail System

A Novel Two-Zone Thermodynamic Model for Spark-Ignition Engines Based on an Idealized Thermodynamic Process

Digital Twin-Based Fuel Consumption Model of Locomotive Diesel Engine

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