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Influence of electric motors assembly in hubs of vehicle wheels on the dynamics of movement, especially on surfaces with different adhesion coefficient

Parczewski Krzysztof, Romaniszyn Kazimierz, Wnęk Henryk

Combustion Engines

2019

R. 58, nr 4

58--64

The article presents issues related to the drivability and stability of a vehicle equipped with electric motors placed in the hubs of wheels. In the article was presented the necessary modifications to the vehicle and their impact on the vehicle's motion parameters. Describes the behavior of the vehicle on a homogeneous surface and on surfaces with different adhesion coefficient under the wheels of the vehicle sides. The simulation model is presented. The last part of the article presents simulation results for compared surfaces with different adhesion under the wheels of the left and right side of the vehicle.

The influence of vehicle skidcar system on vibrations and dynamic characteristics

Žuraulis V., Sokolovskij E.

Zeszyty Naukowe Instytutu Pojazdów / Politechnika Warszawska

2015

z. 1/101

19--30

In this paper, the influence of skidcar system on vehicle motion dynamics is evaluated. An accurate seven degrees of freedom vehicle model including elements of mounted skidcar system is presented in order to analyze frequency and step response characteristics. Experimental research, including roll motion of vehicle body was performed for steady-state cornering on a circle (ISO 4138). Results presented in this paper make it possible to expand the possibilities of application of the system and find possible shortcomings.

W artykule przedstawiono wpływ systemu symulacji poślizgu na dynamikę ruchu samochodu. Odpowiedni model samochodu o siedmiu stopniach swobody uwzględniający elementy systemu symulacji poślizgu powstał w celu analizy częstotliwościowej oraz badania odpowiedzi na skokowy obrót koła kierownicy. Badania ruchu samochodu, w tym przechyłów poprzecznych, przeprowadzono dla manewru ustalonej jazdy po okręgu (ISO 4138). Rezultaty przedstawione w pracy pozwalają rozszerzyć możliwości zastosowania systemu oraz wykryć ewentualne niedociągnięcia.

Experimental Evaluation of Dynamical Measurements Accuracy Basing on the Length of Breaking Distance of a Motor Car

Lewandowski A., Waluś K., Dudziak M.

Machine Dynamics Problems

2006

Vol. 30, No. 2

96-102

In the article there are shown the results of the experimental verification of dynamical parameters of car movement. The experimental verification was carried out by measurement of accelerations and angular velocity of car bodywork tilting using piezo-gyroscope and acceleration sensors. Besides for each test of intensive breaking there was statically measured the distance traveled by the car. There were carried out the statistical analysis and determined the measurement accuracy of designed appliance.