Study of Software Integration for Transient Simulation of Future Cooling System for Heavy Truck Application

Minovski, Blago; Löfdahl, Lennart

doi:10.4271/2014-01-0653

Cited by 6 publications

(10 citation statements)

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“…However, most cases are more concerned with the reliability of the single system mathematical model and take no such considerations to the multi-system coupling thermal transmission problem. The environmental temperature is generally served as the radiator boundary condition, and the heat transfer interaction between the heat exchangers is ignored, thereby resulting in model prediction inaccuracy [19]. Blago emphasized that high-temperature air reflow and condenser calefaction were important deviation factors between the simulation results and experimental values.…”

Section: Underhood Multi-thermodynamic System Coupling Thermal Transmmentioning

confidence: 99%

“…Blago emphasized that high-temperature air reflow and condenser calefaction were important deviation factors between the simulation results and experimental values. Given above, it should not be neglected in the high reliability mathematical modeling [20]. In the engineering and academic community, the bench test [21], computational fluid dynamics (CFD) analysis [22,23], and 1D/3D co-simulation [24,25] are usually adopted to observe the flow field and heat exchange capacity in the engine compartment solving the thermal transmission enhancement problem [26].…”

Section: Underhood Multi-thermodynamic System Coupling Thermal Transmmentioning

confidence: 99%

“…The engine coolant temperature and thermostat lift comparisons between the model calculation and experimental test are presented in Figure 9 and Figure 10, respectively. The coefficient determination was selected as the evaluation standard for the model's credibility [19]. In the regression process, represents the proportion of the explained variation in the total variation, whose value ranges from 0 to 1.…”

Section: Model Validationmentioning

confidence: 99%

“…Q c represent the air intake temperature rise of the radiator, which is caused by the high-temperature air reflow and condenser calefaction; k r is defined as the coupling factor of radiator; and k c is the coupling factor of the condenser. The coupling factors were determined by the CFD model, and the vehicle speed and fan speed were adjusted after the thermal loading of the heat exchangers to observe the radiator inlet temperature, as presented in Formula (19). Figures 14 and 15 are the coupling factor curves under different conditions.…”

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confidence: 99%

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Numerical Calculation Method of Model Predictive Control for Integrated Vehicle Thermal Management Based on Underhood Coupling Thermal Transmission

Gao

Liu

et al. 2019

Energies

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The nonlinear model predictive control (NMPC) controller is designed for an engine cooling system and aims to control the pump speed and fan speed according to the thermal load, vehicle speed, and ambient temperature in real time with respect to the coolant temperature and comprehensive energy consumption of the system, which serve as the targets. The system control model is connected to the underhood computational fluid dynamics (CFD) model by the coupling thermal transmission equation. For the intricate thermal management process predictive control and system control performance analysis, a coupling multi-thermodynamic system nonlinear model for integrated vehicle thermal management was established. The concept of coupling factor was proposed to provide the boundary conditions considering the thermal transmission interaction of multiple heat exchangers for the radiator module. Using the coupling factor, the thermal flow influence of the structural characteristics in the engine compartment was described with the lumped parameter method, thereby simplifying the space geometric feature numerical calculation. In this way, the coupling between the multiple thermodynamic systems mathematical model and multidimensional nonlinear CFD model was realized, thereby achieving the simulation and analysis of the integrated thermal management multilevel cooperative control process based on the underhood structure design. The research results indicated an excellent capability of the method for integrated control analysis, which contributed to solving the design, analysis, and optimization problems for vehicle thermal management. Compared to the traditional engine cooling mode, the NMPC thermal management scheme clearly behaved the better temperature controlling effects and the lower system energy consumption. The controller could further improve efficiency with reasonable coordination of the convective thermal transfer intensity between the liquid and air sides. In addition, the thermal transfer structures in the engine compartment could also be optimized.

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Section: Underhood Multi-thermodynamic System Coupling Thermal Transmmentioning

confidence: 99%

Section: Underhood Multi-thermodynamic System Coupling Thermal Transmmentioning

confidence: 99%

Section: Model Validationmentioning

confidence: 99%

mentioning

confidence: 99%

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Numerical Calculation Method of Model Predictive Control for Integrated Vehicle Thermal Management Based on Underhood Coupling Thermal Transmission

Gao

Liu

et al. 2019

Energies

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“…For example, pressure drop influence the fluid flow rate, which determine the convective heat transfer coefficient. Therefore, there are many physical phenomenon one could model in order to capture the behavior of the system as thoroughly as possible [4].…”

Section: Introductionmentioning

confidence: 99%

A Simulation study of cooling system for heavy duty diesel engine

Adsul

Kotebavi

Bedekar³

et al. 2018

MATEC Web of Conferences

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Abstract. The main function of the cooling system is to control the temperature of the engine components and improve the performance of an engine. To know the flow and temperature distribution in the jacket cooling system for 6 cylinder diesel engine is analyzed using 1 dimensional method by using GT-Suite 1D simulation software package. The present work employs 1D simulation of water jacket in GT-ISE to perform a comprehensive study of mass-flow and thermal distribution over the inlet of the cooling package of a selected engine in several steady state operating points. The results show, that the suggested predictive method successfully captures the thermal effect of recirculation while reducing the necessity for calibration done by prototype testing.

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Modelling and Co-simulation of hybrid vehicles: A thermal management perspective

Yuan

Fletcher

Ahmedov

et al. 2020

Applied Thermal Engineering

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Study of Software Integration for Transient Simulation of Future Cooling System for Heavy Truck Application

Cited by 6 publications

References 0 publications

Numerical Calculation Method of Model Predictive Control for Integrated Vehicle Thermal Management Based on Underhood Coupling Thermal Transmission

Numerical Calculation Method of Model Predictive Control for Integrated Vehicle Thermal Management Based on Underhood Coupling Thermal Transmission

A Simulation study of cooling system for heavy duty diesel engine

Modelling and Co-simulation of hybrid vehicles: A thermal management perspective

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