![\"P90143624-highRes\"](\"http:\/\/mixmotor.eu\/wp-content\/uploads\/2014\/02\/P90143624-highRes.jpg\")
<\/a><\/p>\nOsobitn\u00fa pozornos\u0165 si zasl\u00fa\u017ei karos\u00e9rii vozidla, preto\u017ee t\u00e1 sa aj na\u010falej najviac podie\u013ea na celkovej hmotnosti vozidla. In\u017einieri BMW Group priebe\u017en\u00fdmi evolu\u010dn\u00fdmi krokmi neust\u00e1le zni\u017euj\u00fa podiel skeletu karos\u00e9rie na pohotovostnej hmotnosti kompletn\u00e9ho vozidla, napriek s\u00fa\u010dasn\u00fdm funk\u010dn\u00fdm zlep\u0161en\u00edm v oblasti bezpe\u010dnosti a komfortu. \u010eal\u0161ou v\u00fdhodou v\u00e4\u010d\u0161ej tuhosti karos\u00e9rie s\u00fa men\u0161ie vibr\u00e1cie a prec\u00edznej\u0161ie riadenie, zatia\u013e \u010do s\u00fa\u010dasn\u00e9 zn\u00ed\u017eenie hmotnosti je d\u00f4le\u017eit\u00fdm pr\u00edspevkom k hospod\u00e1rnosti a agilite vozidla, a t\u00fdm aj k dynamike jazdy. V\u00e4\u010d\u0161ie vyu\u017eitie hlin\u00edka a hor\u010d\u00edka v kon\u0161trukcii motora a podvozku je \u010fal\u0161ou cestou k ni\u017e\u0161ej hmotnosti. V d\u00f4sledku toho nie s\u00fa nov\u00e9 modely BMW Group \u0165a\u017e\u0161ie, hoci mnoho z nich m\u00e1 v\u00e4\u010d\u0161ie rozmery ako ich predchodca, a v mnoh\u00fdch pr\u00edpadoch s\u00fa dokonca v\u00fdrazne \u013eah\u0161ie. Tretia gener\u00e1cia BMW X5 je napr\u00edklad a\u017e o 90 kilogramov \u013eah\u0161ia ako porovnate\u013en\u00e9 predch\u00e1dzaj\u00face modely – s d\u00f4le\u017eit\u00fdmi pr\u00ednosmi pre jazdn\u00fa dynamiku a\u00a0spotrebu paliva.<\/p>\n
Inovat\u00edvne vyu\u017eitie materi\u00e1lov v modeloch BMW i3 a BMW i8 <\/b><\/p>\n Systematicky \u013eahk\u00e1 kon\u0161trukcia je obzvl\u00e1\u0161\u0165 d\u00f4le\u017eit\u00e1 u elektricky poh\u00e1\u0148an\u00fdch vozidiel, preto\u017ee hmotnos\u0165 vozidla je jedn\u00fdm z dvoch hlavn\u00fdch faktorov limituj\u00facich dojazd. T\u00fdm druh\u00fdm je kapacita sady akumul\u00e1torov. Ni\u017e\u0161ia hmotnos\u0165 elektromobilu znamen\u00e1 aj ni\u017e\u0161iu spotrebu energie a lep\u0161ie jazdn\u00fa dynamiku. Skupina BMW Group v snahe kompenzova\u0165 vy\u0161\u0161iu hmotnos\u0165 elektrick\u00fdch komponentov prijala pre zna\u010dku BMW i strat\u00e9giu d\u00f4sledne \u013eahkej kon\u0161trukcii v podobe konceptu LifeDrive, inovat\u00edvnu architekt\u00faru, ktor\u00e1 po prv\u00fdkr\u00e1t kombinuje hlin\u00edkov\u00fd podvozok a skelet priestoru pre cestuj\u00facich z kompozitov vystu\u017een\u00fdch uhl\u00edkov\u00fdmi vl\u00e1knami .<\/p>\n Kompozity vystu\u017een\u00e9 uhl\u00edkov\u00fdmi vl\u00e1knami : technicky vyspel\u00fd materi\u00e1l bud\u00facnosti <\/b><\/p>\n Kompozity vystu\u017een\u00e9 uhl\u00edkov\u00fdmi vl\u00e1knami sa m\u00f4\u017eu pochv\u00e1li\u0165 mimoriadne <\/b>priazniv\u00fdm pomerom medzi pevnos\u0165ou a hmotnos\u0165ou. Jedn\u00e1 sa teda o\u00a0ide\u00e1lny <\/b>materi\u00e1l pre pou\u017eitie v kon\u0161trukcii karos\u00e9rie. Pri rovnakej funk\u010dnosti s\u00fa <\/b>uhl\u00edkov\u00e9 kompozity o pribli\u017ene 30 percent \u013eah\u0161ie ako hlin\u00edk a o 50 percent <\/b>\u013eah\u0161ie ne\u017e oce\u013e. Tento materi\u00e1l preto pri pou\u017eit\u00ed na spr\u00e1vnych miestach zni\u017euje <\/b>hmotnos\u0165, optimalizuje \u0165a\u017eisko vozidla a zvy\u0161uje tuhos\u0165 karos\u00e9rie. Tento <\/b>materi\u00e1l sa v s\u00fa\u010dasnosti pou\u017e\u00edva nielen v nov\u00fdch modeloch BMW i3 <\/b>a BMW i8, ale aj v \u0161portov\u00fdch vozidl\u00e1ch BMW M3\/M4 a BMW M6, ktor\u00e9 u\u017e <\/b>nejak\u00fa dobu vyu\u017e\u00edvaj\u00fa v\u00fdhody tohto technicky vyspel\u00e9ho materi\u00e1lu. <\/b>Z uhl\u00edkov\u00e9ho kompozitu s\u00fa vyr\u00e1ban\u00e9 napr\u00edklad ich stre\u0161n\u00e9 panely <\/b>a nosn\u00edky n\u00e1razn\u00edkov. BMW Group v s\u00fa\u010dasnosti pracuje na \u010fal\u0161\u00edch <\/b>potenci\u00e1lnych aplik\u00e1ci\u00e1ch, vr\u00e1tane pou\u017eitia tohto materi\u00e1lu pre rotuj\u00face <\/b>komponenty . Pr\u00edkladom s\u00fa koles\u00e1 s hybridnou kon\u0161trukciou z hlin\u00edka\/uhl\u00edkov\u00e9ho <\/b>kompozitu, zatia\u013e \u010do n\u00edzka hmotnos\u0165 a vysok\u00e1 tuhos\u0165 uhl\u00edkov\u00e9ho kompozitu <\/b>umo\u017e\u0148uje vyr\u00e1ba\u0165 z tohto materi\u00e1lu jednodielny spojovac\u00ed hriade\u013e pre BMW <\/b>M3\/M4 bez vodiaceho lo\u017eiska. V\u010faka tomu sa u\u0161etrilo v\u00a0porovnan\u00ed <\/b>s predch\u00e1dzaj\u00facim modelom 40 percent hmotnosti a zn\u00ed\u017eili sa rotuj\u00face hmoty. <\/b>V\u00fdsledkom s\u00fa e\u0161te r\u00fdchlej\u0161ie reakcie.<\/b><\/p>\n Najlep\u0161\u00ed v segmente : aerodynamika nov\u00e9ho BMW X5 <\/b><\/p>\n Rovnako ako BMW i8, ktor\u00e9ho s\u00fa\u010dinite\u013e aerodynamick\u00e9ho odporu vzduchu cx = 0,26 je v segmente \u0161portov\u00fdch vozidiel vynikaj\u00faca hodnota, predstavuje BMW X5 \u010fal\u0161\u00ed pr\u00edklad pr\u00ednosov strat\u00e9gie Efficient Dynamics pre s\u00e9riovo vyr\u00e1ban\u00e9 vozidl\u00e1. Jeho s\u00fa\u010dinite\u013e aerodynamick\u00e9ho odporu vzduchu bol v porovnan\u00ed s predchodcom zn\u00ed\u017een\u00fd o desa\u0165 percent. Ve\u013ek\u00e9 SAV zna\u010dky BMW sa tak m\u00f4\u017ee pochv\u00e1li\u0165 hodnotou cx = 0,31, ktor\u00e1 je najni\u017e\u0161ia v pr\u00edslu\u0161nom segmente. Proporcie karos\u00e9rie a dizajn vozidla sa na celkovom aerodynamickom odpore vzduchu podie\u013eaj\u00fa pribli\u017ene 40 percentami.<\/p>\n Najm\u00e4 u vozidiel so strmou zadnou \u010das\u0165ou, ako je to u BMW X5, je najv\u00e4\u010d\u0161\u00ed potenci\u00e1l pre vylep\u0161ovanie aerodynamiky zadnej \u010dasti auta. Medzi rie\u0161enia, realizovan\u00e9 v tejto oblasti, patr\u00ed novo navrhnut\u00e1 aerodynamick\u00e1 pred\u013a\u017een\u00e1 plocha stre\u0161n\u00fdch C st\u013apikov, umiestnen\u00e1 po oboch stran\u00e1ch zadn\u00e9ho okna a nadv\u00e4zuj\u00face na stre\u0161n\u00fd spojler. v\u00fdsledn\u00e1, dobre definovan\u00e1 odtokov\u00e1 hrana zmen\u0161uje ve\u013ekos\u0165 podtlaku za zadkom, ktor\u00fd vozidlo b\u0155zd a t\u00fdm v\u00fdrazne zni\u017euje aerodynamick\u00fd odpor vzduchu. S\u00fabor inovat\u00edvnych opatren\u00ed, ktor\u00fd zah\u0155\u0148a vzduchov\u00e9 clony, vzduchov\u00e9 prieduchy a aerodynamicky tvarovan\u00e1 koles\u00e1, optimalizuje aerodynamiku a zni\u017euje aerodynamick\u00fd odpor aj v\u00a0oblasti podbehov kolies, ktor\u00fd m\u00e1 na svedom\u00ed 20 a\u017e 25 percent celkov\u00e9ho aerodynamick\u00e9ho odporu. spotrebu paliva a emisie za v\u0161etk\u00fdch prev\u00e1dzkov\u00fdch podmienok zni\u017euje tie\u017e akt\u00edvne riadenie klapiek v maske chladi\u010da , ktor\u00e9 vylep\u0161uje aerodynamiku a optimalizuje riadenie chladiacej s\u00fastavy.<\/p>\n Autor: Stanislav Frivaldsk\u00fd \u00a0 \u00a0 \u00a0 Foto+Zdroj: www.press.bmwgroup.com<\/p>\n Inteligentn\u00e1 \u013eahk\u00e1 kon\u0161trukcia \u013dahk\u00e1 kon\u0161trukcia je d\u00f4le\u017eitou s\u00fa\u010das\u0165ou strat\u00e9gie Efficient Dynamics a\u00a0v\u017edy patrila do z\u00e1kladnej kon\u0161truk\u010dnej filozofie BMW Group. Vozidl\u00e1 BMW Group dosahuj\u00fa optim\u00e1lnu rovnov\u00e1hu medzi po\u017eiadavkami na individu\u00e1lny produkt a najni\u017e\u0161iu mo\u017en\u00fa \u0161pecifick\u00fa hmotnos\u0165. \u0160portov\u00e9 vozidl\u00e1 by mali ma\u0165 n\u00edzke \u0165a\u017eisko a vyv\u00e1\u017een\u00e9 rozlo\u017eenie hmotnosti medzi n\u00e1pravy v pomere 50:50 %, zatia\u013e \u010do naj\u0165a\u017e\u0161ie […]<\/p>\n","protected":false},"author":1,"featured_media":6234,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[10,4,3],"tags":[1449,595,597,596,594],"class_list":["post-6231","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bmw","category-dokumentarne","category-zaujimave","tag-bmw","tag-bmw-edrive","tag-bmw-i3","tag-bmw-i8","tag-bmw-x5"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"en","enabled_languages":["sk","en","de"],"languages":{"sk":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/6231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/comments?post=6231"}],"version-history":[{"count":2,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/6231\/revisions"}],"predecessor-version":[{"id":6272,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/6231\/revisions\/6272"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media\/6234"}],"wp:attachment":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media?parent=6231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/categories?post=6231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/tags?post=6231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a> <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"