@article{MTMT:34823927, title = {Possibilities for further development of the driver's seat in the case of a non-conventional seating positions}, url = {https://m2.mtmt.hu/api/publication/34823927}, author = {Porkoláb, László and Lakatos, István}, doi = {10.1016/j.heliyon.2024.e28909}, journal-iso = {HELIYON}, journal = {HELIYON}, volume = {10}, unique-id = {34823927}, year = {2024}, eissn = {2405-8440}, orcid-numbers = {Lakatos, István/0000-0002-3855-7379} } @article{MTMT:34758553, title = {Brake Disc Deformation Detection Using Intuitive Feature Extraction and Machine Learning}, url = {https://m2.mtmt.hu/api/publication/34758553}, author = {Dózsa, Tamás and Őri, P and Szabari, M and Simonyi, Ernő and Soumelidis, Alexandros and Lakatos, István}, doi = {10.3390/machines12040214}, journal-iso = {MACHINES}, journal = {MACHINES}, volume = {12}, unique-id = {34758553}, abstract = {In this work we propose proof-of-concept methods to detect malfunctions of the braking system in passenger vehicles. In particular, we investigate the problem of detecting deformations of the brake disc based on data recorded by acceleration sensors mounted on the suspension of the vehicle. Our core hypothesis is that these signals contain vibrations caused by brake disc deformation. Since faults of this kind are typically monitored by the driver of the vehicle, the development of automatic fault-detection systems becomes more important with the rise of autonomous driving. In addition, the new brake boosters separate the brake pedal from the hydraulic system which results in less significant effects on the brake pedal force. Our paper offers two important contributions. Firstly, we provide a detailed description of our novel measurement scheme, the type and placement of the used sensors, signal acquisition and data characteristics. Then, in the second part of our paper we detail mathematically justified signal representations and different algorithms to distinguish between deformed and normal brake discs. For the proper understanding of the phenomenon, different brake discs were used with measured runout values. Since, in addition to brake disc deformation, the vibrations recorded by our accelerometers are nonlinearly dependent on a number of factors (such as the velocity, suspension, tire pressure, etc.), data-driven models are considered. Through experiments, we show that the proposed methods can be used to recognize faults in the braking system caused by brake disc deformation.}, year = {2024}, eissn = {2075-1702}, orcid-numbers = {Őri, P/0000-0002-4706-6432; Soumelidis, Alexandros/0000-0002-0067-7746; Lakatos, István/0000-0002-3855-7379} } @book{MTMT:34746241, title = {Kerékpárszerelő}, url = {https://m2.mtmt.hu/api/publication/34746241}, isbn = {9789633284971}, author = {Pencz, Lajos and Lakatos, István}, publisher = {Oktatási Hivatal}, unique-id = {34746241}, year = {2024}, orcid-numbers = {Lakatos, István/0000-0002-3855-7379} } @article{MTMT:34732300, title = {Development of the bonding technology of modern automotive materials with environmentally friendly solutions}, url = {https://m2.mtmt.hu/api/publication/34732300}, author = {Weltsch, Zoltán and Tajti , Ferenc and Berczeli, Miklós}, doi = {10.26552/com.C.2024.026}, journal-iso = {KOMUNIKACIE}, journal = {KOMUNIKACIE / COMMUNICATIONS}, volume = {26}, unique-id = {34732300}, issn = {1335-4205}, year = {2024}, pages = {B135-B141} } @article{MTMT:34725372, title = {Effect of Environmental Conditions on Curing of Polyurethane Adhesive Investigated with FTIR Analysis}, url = {https://m2.mtmt.hu/api/publication/34725372}, author = {I. Kovács, Péter and Weltsch, Zoltán and Berczeli, Miklós}, doi = {10.26552/com.C.2024.024}, journal-iso = {KOMUNIKACIE}, journal = {KOMUNIKACIE / COMMUNICATIONS}, volume = {26}, unique-id = {34725372}, issn = {1335-4205}, year = {2024}, pages = {B118-B127} } @article{MTMT:34722701, title = {Investigating the Effect of Gear Ratio in the Case of Joint Multi-Objective Optimization of Electric Motor and Gearbox}, url = {https://m2.mtmt.hu/api/publication/34722701}, author = {Istenes, György and Polák, József}, doi = {10.3390/en17051203}, journal-iso = {ENERGIES}, journal = {ENERGIES}, volume = {17}, unique-id = {34722701}, issn = {1996-1073}, abstract = {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.}, year = {2024}, eissn = {1996-1073}, orcid-numbers = {Polák, József/0000-0003-3445-1515} } @article{MTMT:34574396, title = {Comparison of the molding parameters effects on metal injection molded specimens in the real experimental and simulation environments}, url = {https://m2.mtmt.hu/api/publication/34574396}, author = {Ledniczky, György and Weltsch, Zoltán}, doi = {10.26552/com.C.2024.018}, journal-iso = {KOMUNIKACIE}, journal = {KOMUNIKACIE / COMMUNICATIONS}, volume = {26}, unique-id = {34574396}, issn = {1335-4205}, year = {2024}, pages = {B90-B98} } @article{MTMT:34503435, title = {Changing the high strength steel surface properties with femtosecond laser beam}, url = {https://m2.mtmt.hu/api/publication/34503435}, author = {Berczeli, Miklós and Tajti , Ferenc and Juhász, Gergely and Weltsch, Zoltán}, doi = {10.1016/j.optlastec.2024.110556}, journal-iso = {OPT LASER TECHNOL}, journal = {OPTICS AND LASER TECHNOLOGY}, volume = {174}, unique-id = {34503435}, issn = {0030-3992}, year = {2024}, eissn = {1879-2545} } @article{MTMT:34491779, title = {The Effect of the Ball-Track Connection on the Energy Behavior of the Roller Gearing Gearbox}, url = {https://m2.mtmt.hu/api/publication/34491779}, author = {Polák, József}, doi = {10.12700/APH.21.4.2024.4.10}, journal-iso = {ACTA POLYTECH HUNG}, journal = {ACTA POLYTECHNICA HUNGARICA}, volume = {21}, unique-id = {34491779}, issn = {1785-8860}, year = {2024}, eissn = {1785-8860}, pages = {185-202}, orcid-numbers = {Polák, József/0000-0003-3445-1515} } @article{MTMT:34486365, title = {Deformation Analysis of Different Lithium Battery Designs Using the DIC Technique}, url = {https://m2.mtmt.hu/api/publication/34486365}, author = {Kocsis Szürke, Szabolcs and Szabó, Mátyás and Szalai, Szabolcs and Fischer, Szabolcs}, doi = {10.3390/en17020323}, journal-iso = {ENERGIES}, journal = {ENERGIES}, volume = {17}, unique-id = {34486365}, issn = {1996-1073}, year = {2024}, eissn = {1996-1073}, orcid-numbers = {Fischer, Szabolcs/0000-0001-7298-9960} }