Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox

In this paper, a software framework is presented through an application that is able to jointly optimize an electric motor and a gearbox for the design of a drive system for electric vehicles. The framework employs a global optimization method and uses both analytical and finite element method (FEM)...

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Main Authors: György Istenes, József Polák
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/17/5/1203
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author György Istenes
József Polák
author_facet György Istenes
József Polák
author_sort György Istenes
collection DOAJ
description In this paper, a software framework is presented through an application that is able to jointly optimize an electric motor and a gearbox for the design of a drive system for electric vehicles. The framework employs a global optimization method and uses both analytical and finite element method (FEM) models to evaluate the objective functions. The optimization process is supported by a statistical surrogate model, which allows a large reduction of runtime. An earlier version of this framework was only suitable for electric motor optimization. In the application presented in a previous paper, the motor of a belt-driven electric drive system was optimized. In this paper, the optimization of the same drive system is shown, but now with a combined optimization of a gear drive and motor. The objective functions of optimization are minimizing the total loss energy and the weight of the drive system. The optimization results are compared with previous results to demonstrate the further potential of joint optimization.
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spelling doaj.art-14d9dff06b0c42cfb5e8a87d4f947eb82024-03-12T16:43:42ZengMDPI AGEnergies1996-10732024-03-01175120310.3390/en17051203Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and GearboxGyörgy Istenes0József Polák1Vehicle Industry Research Center, Széchenyi István University, Egyetem tér 1, 9026 Győr, HungaryDepartment of Road and Rail Vehicles, Széchenyi István University, Egyetem tér 1, 9026 Győr, HungaryIn this paper, a software framework is presented through an application that is able to jointly optimize an electric motor and a gearbox for the design of a drive system for electric vehicles. The framework employs a global optimization method and uses both analytical and finite element method (FEM) models to evaluate the objective functions. The optimization process is supported by a statistical surrogate model, which allows a large reduction of runtime. An earlier version of this framework was only suitable for electric motor optimization. In the application presented in a previous paper, the motor of a belt-driven electric drive system was optimized. In this paper, the optimization of the same drive system is shown, but now with a combined optimization of a gear drive and motor. The objective functions of optimization are minimizing the total loss energy and the weight of the drive system. The optimization results are compared with previous results to demonstrate the further potential of joint optimization.https://www.mdpi.com/1996-1073/17/5/1203multi-objective optimizationelectric motorgearboxdrive system
spellingShingle György Istenes
József Polák
Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox
Energies
multi-objective optimization
electric motor
gearbox
drive system
title Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox
title_full Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox
title_fullStr Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox
title_full_unstemmed Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox
title_short Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox
title_sort investigating the effect of gear ratio in the case of joint multi objective optimization of electric motor and gearbox
topic multi-objective optimization
electric motor
gearbox
drive system
url https://www.mdpi.com/1996-1073/17/5/1203
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