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A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 8325

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Dr. Matthijs Klomp

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Department of Mechanics and Maritime Services, Chalmers University of Technology, Hörsalsvägen 7A, SE-412 96 Gothenburg, Sweden
Interests: vehicle dynamics modeling;simulation and control

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your research achievements to a Special Issue of Energies, titled “Simulation and Optimization of Vehicle Dynamics Systems”. Vehicle dynamics simulation and virtual verification and optimization have been well developed in recent decades and have more recently become increasingly important for the development and virtual verification of control software for driving automation, driver assist functions, and vehicle motion control. This Special Issue will focus on the most recent achievements in the theory and practice of vehicle dynamics simulation and optimization, especially for vehicle dynamics motion control, driving automation, energy efficiency optimization, and other applications. Topics of interest for publication include but are not limited to the following:

Verification and validation of simulation models;
Software- and hardware-in-the-loop simulation;
Co-simulation and model coupling;
Vehicle dynamics modeling and simulation;
Vehicle dynamics controllability and stability analysis;
Verification and testing of vehicle dynamics control software.

Dr. Matthijs Klomp
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

Vehicle dynamics control
Vehicle optimization
Hardware-in-the-loop
Software-in-the-loop
Vehicle modeling
Vehicle dynamics simulation
Driving automation
Vehicle motion control
Vehicle stability analysis

Published Papers (5 papers)

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Research

16 pages, 2212 KiB

Open AccessArticle

Influence of Changes in Stiffness and Damping of Tyre Wheels on the Outcome of the Condition Assessment of Motor Vehicle Shock Absorbers

by Andrzej Zuska and Jerzy Jackowski

Energies 2023, 16(9), 3876; https://0-doi-org.brum.beds.ac.uk/10.3390/en16093876 - 03 May 2023

Viewed by 1545

Abstract

This article deals with the influence of the elastic-damping properties (energy losses) of tired wheels on the results of the evaluation of the technical condition (dynamic properties) of automotive suspensions carried out on the diagnostic line. The purpose of this paper is to point out the inadequacies of test stands for assessing the technical condition of vehicle suspensions. The diagnostic line used in the testing featured two testing stations. The test object was a passenger car with hydro-pneumatic suspension. This enabled the conducting of suspension tests for two settings (comfort and dynamic positions). The tests were conducted for four different air pressures in the tyres of tired wheels. This made it possible to determine, for each wheel, four graphs of the load versus tyre deflection (radial stiffness characteristics). These graphs were used to determine the values of the stiffness coefficients, energy loss, and damping characteristics as well as to identify the correlation between the directional coefficient of the regression line of the elastic and damping characteristics of the tyres and the indices characterising the damping properties of the suspension of the test car. This paper shows that the result of the shock absorber condition assessment is significantly influenced by the elastic and damping properties of the tired wheels, caused by changes in tyre pressure. Full article

(This article belongs to the Special Issue Simulation and Optimization of Vehicle Dynamics System)

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26 pages, 7059 KiB

Open AccessArticle

Parameter Optimization Method for Power System of Medium-Sized Bus Based on Orthogonal Test

by Xingxing Wang, Peilin Ye, Yujie Zhang, Hongjun Ni, Yelin Deng, Shuaishuai Lv, Yinnan Yuan and Yu Zhu

Energies 2022, 15(19), 7243; https://0-doi-org.brum.beds.ac.uk/10.3390/en15197243 - 02 Oct 2022

Cited by 4 | Viewed by 1245

Abstract

Accurate and reasonable matching design is a current and difficult point in electric vehicle research. This paper presents a parameter optimization method for the power system of a medium-sized bus based on the combination of the orthogonal test and the secondary development of ADVISOR software. According to vehicle theoretical knowledge and the requirements of the vehicle power performance index, the parameters of the vehicle power system were matched and designed. With the help of the secondary development of MATLAB/Simulink and ADVISOR software, the modeling of the key parts of the vehicle was carried out. Considering the influence of the number of battery packs, motor power model, wheel rolling resistance coefficient, and wind resistance coefficient on the design of the power system, an L9 (34)-type orthogonal table was selected to design the orthogonal test. The dynamic performance and driving range of the whole vehicle were simulated using different design schemes, and the accuracy of the simulation results was verified by comparing and analyzing the simulation images. The results demonstrated that in the environment where the wind resistance coefficient was 0.6 and the wheel rolling resistance coefficient was 0.009, with 240 sets of lithium batteries (battery energy, 264 kW h; battery capacity, 100 Ah) as the power source, the pure electric medium-sized bus equipped with the PM165 permanent magnet motor (rated power, 60 kW; rated torque, 825 N m) could obtain the best power performance and economic performance. The research content of this paper provides a certain reference for the design of shuttle buses for Nantong’s bus system, effectively reduces the testing costs of the vehicle development process, and provides a new idea for the power system design of pure electric buses. Full article

(This article belongs to the Special Issue Simulation and Optimization of Vehicle Dynamics System)

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18 pages, 5672 KiB

Open AccessArticle

Multiphysics Design of an Automotive Regenerative Eddy Current Damper

by Umid Jamolov, Francesco Peccini and Giovanni Maizza

Energies 2022, 15(14), 5044; https://0-doi-org.brum.beds.ac.uk/10.3390/en15145044 - 11 Jul 2022

Cited by 2 | Viewed by 1284

Abstract

This research presents a finite element multi-physics design methodology that can be used to develop and optimise the inherent functions and geometry of an innovative regenerative eddy current (REC) damper for the suspension of B class vehicles. This methodology was inspired by a previous work which has been applied successfully for the development of an eddy current (EC) damper used for the same type of applications. It is based on a multifield finite element coupled model that can be used to fulfil the electromagnetic, thermal, and fluid dynamic field properties and boundary conditions of a REC damper, as well as its non-linear material properties and boundary conditions, while also analysing its damping performance. The proposed REC damper features a variable fail-safe damping force, while electric power is advantageously regenerated at high suspension frequencies. Its damping performance has been benchmarked against that of a regular hydraulic shock absorber (selected as a reference) by analysing the dynamic behaviour of both systems using a quarter car suspension model. The results are expressed in terms of damping force, harvested power, thermal field, comfort and handling, with reference to ISO-class roads. The optimisation analysis of the REC damper has suggested useful guidelines for the harmonisation of damping and regenerative power performances during service operation at different piston speeds. Full article

(This article belongs to the Special Issue Simulation and Optimization of Vehicle Dynamics System)

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22 pages, 7281 KiB

Open AccessFeature PaperArticle

Integral Methodology for the Multiphysics Design of an Automotive Eddy Current Damper

by Umid Jamolov and Giovanni Maizza

Energies 2022, 15(3), 1147; https://0-doi-org.brum.beds.ac.uk/10.3390/en15031147 - 04 Feb 2022

Cited by 10 | Viewed by 1832

Abstract

The present work reports an integrated (experimental and numerical) methodology that combines the development of a finite element multiphysics model with an experimental strategy to optimally design an eddy current damper for automotive suspensions. The multiphysics model couples the whole set of time-dependent electromagnetic, thermal, mechanical, and fluid–wall interaction (CFD) partial differential equations. The developed FE model was validated against both literature model predictions and in-house experimental data. The electromagnetic model takes into account the magnetic material characteristics of the ferromagnetic material and iron poles. Loss separation and the Jiles–Atherton hysteresis models were invoked to determine the heat generated in the soft iron parts. The computation of the fluid–wall interaction phenomena in the air gap allowed for the prediction of the temperature field across the solid materials, including the magnets. The design of the EC damper addresses the effects of the geometries of the stator and rotor, as they are the most critical geometries for maximizing the functions of an eddy current damper. The magneto-thermal simulations suggested that the heating of the permanent magnets remains within a safe region over the investigated operational frequency range of the eddy current damper. Full article

(This article belongs to the Special Issue Simulation and Optimization of Vehicle Dynamics System)

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17 pages, 6683 KiB

Open AccessArticle

Stochastic Technical Stability Test of a Passenger Railroad Car Crossing a Turnout

by Jerzy Kisilowski and Elżbieta Kowalik-Adamczyk

Energies 2021, 14(15), 4569; https://0-doi-org.brum.beds.ac.uk/10.3390/en14154569 - 28 Jul 2021

Cited by 3 | Viewed by 1313

Abstract

This article presents a definition of stochastic technical stability that was applied to test a mathematical model of a passenger railroad car crossing a turnout with the speed exceeding 160 km/h. Stability defined in this way allows testing of Lyapunov’s stability with disturbances from the track and for a nonlinear system. The STS test of a nonlinear mathematical model of a passenger car was carried out by perturbing the motion of the mathematical model with irregularities originating from the track gauge change and wheelset motion in the direction transverse to the track axis. The main aim of this paper was to determine the influence of various factors and technical conditions on the assessment of the stability of various means of transport. The analysis presented can be used to assess the dynamics of electric vehicles, whose mechanical parameters differ from those of combustion vehicles at present. The area of stable motion in the Lyapunov sense was defined using the STS method. Simulations were performed to determine the trajectory of the wheelset transverse motion. The probability of finding the wheelset in the stable motion area in relation to the rail for a single-point contact was determined. In practice, this is a one-point contact of the wheel with the rail. Conclusions from the conducted research are presented. Full article

(This article belongs to the Special Issue Simulation and Optimization of Vehicle Dynamics System)

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