\n
![\"P90144247-highRes\"](\"http:\/\/mixmotor.eu\/wp-content\/uploads\/2014\/03\/P90144247-highRes.jpg\")
<\/a>\nNa prelome rokov 2013\/2014 bola vyhotoven\u00e1 \u0161asi novej M4 a t\u00edmy jazdiace s BMW mohli tak sklada\u0165 svoje nov\u00e9 \u0165a\u017en\u00e9 kone stajn\u00ed v mesiacoch janu\u00e1r a febru\u00e1r. Po 300 d\u0148och tvrdej pr\u00e1ce, sk\u00famania\u00a0a po\u010d\u00edtania tak st\u00e1lo re\u00e1lne BMW M4 DTM na trati v \u0160panielsku, \u010do je ve\u013emi kr\u00e1tky \u010dasov\u00fd horizont vzh\u013eadom na to, \u017ee v pr\u00edpade s\u00fa\u0165a\u017en\u00fdch vozidiel sa jedn\u00e1 o vedu a nie iba o jednoduch\u00e9 navrhovanie.<\/p>\n
Produkcia<\/b><\/p>\n
Posledn\u00e9 BMW M zi\u0161lo z v\u00fdrobnej linky v materskej spolo\u010dnosti v Mn\u00edchove v roku 1991. Tento rok sa ich v\u00fdroba vr\u00e1tila <\/a>do spom\u00ednan\u00e9ho matersk\u00e9ho s\u00eddla a tak malo BMW Motorsport st\u00e1li preh\u013ead nad v\u00fdrobou M4 DTM.<\/p>\n Dizajn<\/b><\/p>\n BMW M4 Coup\u00e9 aj BMW M4 DTM s\u00fa ulo\u017een\u00e9 \u010do najbli\u017e\u0161ie asfaltu. V podstate sa dizajn\u00e9ri sna\u017eili o ve\u013ek\u00fa podobnos\u0165 t\u00fdchto dvoch ve\u013emi vzdialen\u00fdch bratov: dvojit\u00e9 svetlomety, dve oddelen\u00e9 mrie\u017eky chladi\u010da, dlh\u00e1 kapota motora, dlh\u00fd r\u00e1zvor medzi n\u00e1pravami. Aerodynamika<\/b><\/p>\n Z\u00e1kladom v DTM je takisto ako aj vo formule aerodynamika, bez nej sa v\u00fdkonn\u00e9 auto st\u00e1va neovl\u00e1date\u013en\u00e9. Pr\u00e1ve preto, \u017ee z\u00e1le\u017e\u00ed (bez preh\u00e1\u0148ania) na ka\u017edom men\u0161om kr\u00eddelku a v\u00fdstupe, zabrala pr\u00e1ca v aerodynamickom tuneli najdlh\u0161\u00ed \u010das. Ako aj pri s\u00e9riovom modeli vzduchov\u00e9 clony vpredu auta zni\u017euj\u00fa vzdu\u0161n\u00fa odpor,\u00a0\u00a0\u00fazke kan\u00e1le na pr\u00edvod vzduchu v spodnej \u010dasti prednej masky sl\u00fa\u017eia na zr\u00fdchlenie prietoku vzduchu cez predn\u00fa masku odpredu\u00a0cez otvory na kapote\u00a0smeruj\u00face na \u010deln\u00e9 sklo\u00a0a pri tom sa tiahnu poza koles\u00e1. Tak\u00fdto odvod n\u00e1poru vzduchu je v\u00fdrazn\u00fdm zlep\u0161en\u00edm prispievaj\u00facim ku zn\u00ed\u017eeniu turbulencii okolo blatn\u00edkov kolies. \u013dahk\u00e1 kon\u0161trukcia<\/b><\/p>\n Na za\u010diatok len jednoduch\u00e9 porovnanie: BMW M4 Coup\u00e9 je kr\u00e1snym pr\u00edkladom od\u013eah\u010denej kon\u0161trukcie s celkovou hmotnos\u0165ou auta 1.497kg, \u010do je o 80kg menej, ako jeho predchodca BMW M3. V\u010fa\u010dn\u00fd mo\u017eno by\u0165 za to vyu\u017eitie modern\u00fdch vysokopevn\u00fdch materi\u00e1lov. Jedn\u00e1 sa o uhl\u00edkov\u00e9 vl\u00e1kna, vystu\u017een\u00fdch plastov a hlin\u00edkov\u00fdch zliatin. Bezpe\u010dnos\u0165<\/b><\/p>\n Takisto ako v be\u017enej prem\u00e1vke, aj pri s\u00fa\u0165a\u017een\u00ed sa kladie d\u00f4raz na bezpe\u010dnos\u0165 a preto FIA (automobilov\u00e1 feder\u00e1cia) stanovila ur\u010dit\u00e9 pravidl\u00e1 a vytvorila normy pre niektor\u00e9 s\u00fa\u010dasti DTM \u00e1ut. BMW M4 DTM je zlo\u017een\u00e9 z viac ako 5.000 s\u00fa\u010dast\u00ed a s\u00fa\u010diastok, pri\u010dom 50 dielov je normalizovan\u00fdch. O ak\u00e9 diely sa jedn\u00e1? Motor, prevodovka<\/b><\/p>\n BMW P66 je k\u00f3dov\u00e9 ozna\u010denie motora pre DTM a generuje 480 konsk\u00fdch s\u00edl (na motorovej brzde, tak\u017ee v\u00fdsledn\u00fd v\u00fdkon na koles\u00e1ch je o nie\u010do ni\u017e\u0161\u00ed), ktor\u00e9 s\u00fa spolu so \u0161krtiacou klapkou v san\u00ed vzduchu ur\u010den\u00e9 pravidlami s\u00fa\u0165a\u017ee. P66 je poskladan\u00fd z 800 rozli\u010dn\u00fdch komponentov, zlo\u017een\u00fdch z 3.900 jednotliv\u00fdch s\u00fa\u010diastok. T\u00e1to V\u00e9-osmi\u010dka akceleruje z 0 na 100km\/h za 3 sekundy a to pri celkovom objeme valcov 4l. Riadenie<\/b><\/p>\n Tento kr\u00e1t spom\u00edname riadenie vozidla a nie riadenie ako technick\u00fd syst\u00e9m s\u00fa\u010dast\u00ed. Riadenie v roku 2014 v DTM bude o nie\u010do jednoduch\u0161ie, preto\u017ee je povolen\u00fd kontroln\u00fd displej\u00a0priamo pred volantom vodi\u010da. Rozmiestnenie tla\u010didiel a vyp\u00edna\u010dov je u\u017e individu\u00e1lna z\u00e1le\u017eitos\u0165 ka\u017ed\u00e9ho jazdca. Technick\u00e9 d\u00e1ta BMW M4 DTM<\/b><\/p>\n \u0160asi<\/span>: monokok z uhl\u00edkov\u00fdch (karb\u00f3nov\u00fdch) vl\u00e1kien s integrovanou n\u00e1dr\u017eou a oce\u013eovou klietkou; deforma\u010dn\u00e9 z\u00f3ny vpredu a na stran\u00e1ch auta z karb\u00f3nu Autor: Vladislav Baniari; Zdroj: BMW<\/p>\n Pribiehaj\u00face testovanie nov\u00e9ho \u0161peci\u00e1lneho s\u00fa\u0165a\u017en\u00e9 vozidla M4\u00a0s motorom V8 so\u00a0480 ko\u0148mi\u00a0od automobilky BMW pre s\u00e9riu s\u00fa\u0165a\u017e\u00ed s n\u00e1zvom DTM (Nemeck\u00e9 vytrvalostn\u00e9 majstrovstv\u00e1) je v plnom pr\u00fade, preto\u017ee \u0161tart DTM sa bl\u00ed\u017ei. Prv\u00e9 ostr\u00e9 pretekanie o drahocenn\u00e9 body do tejto prest\u00ed\u017enej s\u00fa\u0165a\u017ee sa za\u010dne 4. m\u00e1ja na okruhu Hockenheim v Nemecku. Predt\u00fdm sa t\u00edmy predstavia na […]<\/p>\n","protected":false},"author":1,"featured_media":6290,"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":[7,10,4],"tags":[25,1449,350,237,600],"class_list":["post-6280","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sutaze","category-bmw","category-dokumentarne","tag-25","tag-bmw","tag-dtm","tag-m4","tag-p66"],"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\/6280","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=6280"}],"version-history":[{"count":4,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/6280\/revisions"}],"predecessor-version":[{"id":6294,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/posts\/6280\/revisions\/6294"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media\/6290"}],"wp:attachment":[{"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/media?parent=6280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/categories?post=6280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mixmotor.eu\/en\/wp-json\/wp\/v2\/tags?post=6280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n<\/a><\/p>\n
\n<\/a>
\nZ\u00e1rez v bo\u010dnej strane auta bol e\u0161te vylep\u0161en\u00fd a spojen\u00fd s plat\u0148ou v spodnej \u010dasti, \u010do dod\u00e1va autu n\u00e1padnej\u0161\u00ed tvar. Strecha m\u00e1 in\u00fd uhol sklonu, ktor\u00fd umo\u017enil zmen\u0161i\u0165 treciu plochu so vzduchom a t\u00fdm aj celkov\u00e9 brzdenie auta. Zadn\u00e9 okno je teraz plochej\u0161ie a priv\u00e1dza tak \u013eah\u0161ie vzduch na zadn\u00e9 kr\u00eddlo, kde sa rozde\u013euje.
\nNa DTM vozidl\u00e1ch skuto\u010dne z\u00e1le\u017e\u00ed v\u00fdrazne na aerodynamike, \u010do vidno aj na nov\u00fdch sp\u00e4tn\u00fdch zrkadl\u00e1ch zni\u017euj\u00facich celkov\u00fd koeficient trenia vzduchu.<\/p>\n
\nKarb\u00f3n sa na\u0161\u0165astie vyu\u017e\u00edva v\u010faka moto\u0161portu a aj preto bol vyu\u017eit\u00fd na modely M4 DTM. Jeho celkov\u00e1 hmotnos\u0165 je 1.100kg a to u\u017e s vodi\u010dom.<\/p>\n
\nJe to napr\u00edklad kab\u00edna jazdca, ktor\u00e1 je vyroben\u00e1 ako jeden liaty celok (monokok\/monocoque) z karb\u00f3nu. \u010ealej prevodovka, spojka, tlmi\u010de, zadn\u00e9 kr\u00eddlo. Toto extr\u00e9mne zni\u017euje n\u00e1klady na v\u00fdvoj v\u0161etk\u00fdm (trom) v\u00fdrobcom s\u00fa\u0165a\u017eiacim v DTM: Audi, BMW, Mercedes.<\/p>\n
\n<\/a>
\nPrevodovka je, u\u017e ako bolo vy\u0161\u0161ie spomenut\u00e9, normalizovan\u00e1. M\u00f4\u017eu v nej v\u0161ak by\u0165 menen\u00e9 ozuben\u00e9 prevody, ktor\u00e9 svojou\u00a0kombin\u00e1ciou vytvoria 11 prevodov\u00fdch pomerov. To \u010di sa auto nastav\u00ed do pomala, alebo do r\u00fdchla je u\u017e iba na t\u00edmoch.<\/p>\n
\n<\/a>
\n<\/a><\/p>\n
\nRozmery<\/span> [mm]: 4.775 d\u013a\u017eka; 1.950 \u0161\u00edrka; 1.200 v\u00fd\u0161ka
\nN\u00e1dr\u017e<\/span> [l]: 120
\nMotor<\/span>: atmosf\u00e9rick\u00fd 90\u00b0 V8, 4 ventily na valec, 2x28mm \u0161krtiace klapky v san\u00ed (dan\u00e9 pravidlami); objem 4l; v\u00fdkon 480ks (so \u0161krtiacimi klapkami); kr\u00fatiaci moment 500Nm; riadiaca jednotka Bosch MS 5.1
\nPrevodovka<\/span>: 6-stup\u0148ov\u00e1, ovl\u00e1dan\u00e1 pneumaticky cez p\u00e1dla na volante; 4-plat\u0148ov\u00e1 spojka ZF Sachs z uhl\u00edkov\u00fdch vl\u00e1kien; nastavite\u013en\u00fd multi-kot\u00fa\u010dov\u00fd\u00a0diferenci\u00e1l s obmedzen\u00fdm preklzom
\nPredn\u00e1 n\u00e1prava\/zadn\u00e1 n\u00e1prava<\/span>: dvojit\u00e1 rybovit\u00e1 n\u00e1prava s posuvnou vzperou a nastavite\u013en\u00fdmi tlmi\u010dmi v 6 \u00farovniach; H&R pru\u017einy
\nBrzdy<\/span>: hydraulick\u00fd brzdov\u00fd syst\u00e9m s dvojit\u00fdm okruhom; jednoliate, od\u013eah\u010den\u00e9 brzdov\u00e9 strmene (brzdi\u010de); vn\u00fatorne chladen\u00e9 v\u0161etky kot\u00fa\u010de; brzdov\u00fd pr\u00edtlak si m\u00f4\u017ee jazdec nastavi\u0165 individu\u00e1lne; elektromagnetick\u00fd \u0161tartovac\u00ed ventil
\nKoles\u00e1<\/span>: disky z hlin\u00edkov\u00fdch zliatin; vpredu 18\u00b4\u00b4x12\u00b4\u00b4; vzadu 18\u00b4x13\u00b4\u00b4
\nPneumatiky<\/span>: Hankook; vpredu 300-680-18; vzadu 320-710-18<\/p>\n<\/a>\u00a0\u00a0 <\/a>\u00a0 <\/a>\u00a0 <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"