<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The authors of this manuscript present the development of a braking system with friction material base WC-Cu coating for the electric vehicle. This manuscript follows on from the original development of an AGV multi-disc braking system and an experimental investigation of the friction factor of WC-Cu coatings. In addition to developing the mechanical elements and construction of the electric vehicle, the tribological parameters of three samples of the steel substrate, the C45 with WC-Cu coating, were investigated in the tribological laboratory. A metallic coating of the WC-Cu base was applied on the C45 steel substrate using electro-spark deposition coating technology. The experiment used three samples with different percentage ratios of chemical elements in the coating structure. The tribometer working on a “Ball on Plate” principle was an investigation of the friction factor of all samples during the experiment. Subsequently, the surface of the samples was modified structure WC-Cu with laser technology. The microhardness of modified and unmodified coatings according to the Vickers methodology was investigated in the next stage. At the end of the experimental investigation, a braking simulation was created in the programming environment of the Matlab® software, considering all driving resistances. The researchers also focused on the simulation of heat conduction during braking for some considered driving modes with braking on a level and with a 20% slope roadway. The simulation of heat flow was carried out in the Matlab® programming environment using the Fourier partial differential equation for non-stationary heat conduction.</p>
</abstract>

The authors of this manuscript present the development of a braking system with friction material base WC-Cu coating for the electric vehicle. This manuscript follows on from the original development of an AGV multi-disc braking system and an experimental investigation of the friction factor of WC-Cu coatings. In addition to developing the mechanical elements and construction of the electric vehicle, the tribological parameters of three samples of the steel substrate, the C45 with WC-Cu coating, were investigated in the tribological laboratory. A metallic coating of the WC-Cu base was applied on the C45 steel substrate using electro-spark deposition coating technology. The experiment used three samples with different percentage ratios of chemical elements in the coating structure. The tribometer working on a “Ball on Plate” principle was an investigation of the friction factor of all samples during the experiment. Subsequently, the surface of the samples was modified structure WC-Cu with laser technology. The microhardness of modified and unmodified coatings according to the Vickers methodology was investigated in the next stage. At the end of the experimental investigation, a braking simulation was created in the programming environment of the Matlab® software, considering all driving resistances. The researchers also focused on the simulation of heat conduction during braking for some considered driving modes with braking on a level and with a 20% slope roadway. The simulation of heat flow was carried out in the Matlab® programming environment using the Fourier partial differential equation for non-stationary heat conduction.

Research of Tribological and Thermodynamic Parameters of the WC-Cu Braking System of the Experimental Modular Electric Vehicle

Faculty of Mechanical Engineering, Department of Design and Mechanical Elements

Production Engineering Archives

This work is licensed under the Creative Commons Attribution 4.0 International License.

The authors of this manuscript present the development of a braking system with friction material base WC-Cu coating for the electric vehicle. This manuscript...

Research of Tribological and Thermodynamic Parameters of the WC-Cu Braking System of the Experimental Modular Electric Vehicle

Publié en ligne: 26 avr. 2023

Pages: 116 - 127

Reçu: 09 nov. 2022

Accepté: 23 janv. 2023

DOI: https://doi.org/10.30657/pea.2023.29.14

Mots clés
WC-Cu coating, Friction factor, Electric vehicle, Braking system, Simulation of braking

© 2023 Daniel Varecha et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Research of Tribological and Thermodynamic Parameters of the WC-Cu Braking System of the Experimental Modular Electric Vehicle

Publié en ligne: 26 avr. 2023

Pages: 116 - 127

Reçu: 09 nov. 2022

Accepté: 23 janv. 2023

DOI: https://doi.org/10.30657/pea.2023.29.14

Mots clésWC-Cu coating, Friction factor, Electric vehicle, Braking system, Simulation of braking

© 2023 Daniel Varecha et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
WC-Cu coating, Friction factor, Electric vehicle, Braking system, Simulation of braking