Vliv provozních podmínek na produkci částic z otěrů brzdového obložení

Effects of operating conditions on the production of brake wear particles

Typ dokumentu
diplomová práce
master thesis
Autor
Srinath Penumarti
Vedoucí práce
Vojtíšek Michal
Oponent práce
Pechout Martin
Studijní obor
Advanced Powertrains
Studijní program
Master of Automotive Engineering
Instituce přidělující hodnost
ústav automobilů, spalovacích motorů a kolejových vozidel


Práva
A university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics http://knihovny.cvut.cz/vychova/vskp.html
Vysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou http://knihovny.cvut.cz/vychova/vskp.html
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Abstrakt
This master thesis deals with the evaluation of particle emissions from four different commercial brake pads for a typical automobile with regards to various braking conditions. A full scale inertia brake dynamometer was used to test the brake pads using portions of standardized test procedures ISO 26867 and SAE J2522 and the newly developed brake WLTC cycle for brake wear particle testing. The particle concentrations were measured online with EEPS and ELPI particle sizers sampling from an outlet duct of the dynamometer enclosure. Particle production per brake event was calculated and the effects of initial and final brake disc temperature and average dissipated power were evaluated. Both the braking intensity and the energy dissipated per brake event had considerable effect on particle production. The particle emissions during WLTC cycle representing real driving were far lower than for more severe, albeit still reasonably realistic, brake events used in standardized procedures.
 
This master thesis deals with the evaluation of particle emissions from four different commercial brake pads for a typical automobile with regards to various braking conditions. A full scale inertia brake dynamometer was used to test the brake pads using portions of standardized test procedures ISO 26867 and SAE J2522 and the newly developed brake WLTC cycle for brake wear particle testing. The particle concentrations were measured online with EEPS and ELPI particle sizers sampling from an outlet duct of the dynamometer enclosure. Particle production per brake event was calculated and the effects of initial and final brake disc temperature and average dissipated power were evaluated. Both the braking intensity and the energy dissipated per brake event had considerable effect on particle production. The particle emissions during WLTC cycle representing real driving were far lower than for more severe, albeit still reasonably realistic, brake events used in standardized procedures.
 
URI
http://hdl.handle.net/10467/90300
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