Kuwongolera kuyendetsa galimoto kumawongolera kuzungulira kwa galimoto kapena kuyimitsa kwake, komanso liwiro la kuzungulira. Gawo lowongolera kuyendetsa galimoto limatchedwanso electronic speed controller (ESC). Kusintha kwamagetsi komwe kumayenderana ndi kugwiritsa ntchito ma mota osiyanasiyana, kuphatikiza kusintha kwa magetsi opanda burashi ndi burashi.
Maginito okhazikika a brush-motor amakhazikika, coil imazungulira rotor, ndipo njira ya maginito imasinthidwa ndi kukhudzana kosalekeza pakati pa burashi ndi commutator kuti rotor isunge ikuzungulira mosalekeza.
Mota yopanda burashi, monga momwe dzina lake likusonyezera, ilibe burashi ndi commutator yotchedwa. Rotor yake ndi maginito okhazikika, pomwe coil ndi yokhazikika. Imalumikizidwa mwachindunji ndi magetsi akunja.
Ndipotu, mota yopanda burashi imafunikanso mphamvu yamagetsi, yomwe kwenikweni ndi mphamvu yamagetsi. Imasintha njira ya mphamvu mkati mwa coil yokhazikika nthawi iliyonse, kuti zitsimikizire kuti mphamvu pakati pake ndi maginito okhazikika zimatsutsana ndipo kuzungulira kosalekeza kumatha kupitiliza.
Mota yopanda burashi ingagwire ntchito popanda kufunikira kusintha kwa magetsi, kupereka magetsi mwachindunji ku mota kungagwire ntchito, koma izi sizingalamulire liwiro la mota. Mota yopanda burashi iyenera kukhala ndi kusintha kwamagetsi, apo ayi singazungulire. Mphamvu yolunjika iyenera kusinthidwa kukhala mphamvu yosinthira magawo atatu pogwiritsa ntchito malamulo a mphamvu yopanda burashi.
Kusintha kwa magetsi koyambirira sikufanana ndi kusintha kwa magetsi komwe kukuchitika panopa, koyamba ndi kusintha kwa magetsi a burashi, ngati mungafune kufunsa, kodi kusintha kwa magetsi a burashi ndi chiyani, ndipo tsopano kusintha kwa magetsi opanda burashi kuli ndi kusiyana kotani.
Ndipotu, pali kusiyana kwakukulu pakati pa brushless ndi brushless zomwe zimachokera pa mota. Tsopano rotor ya mota, yomwe ndi gawo lomwe limatha kuzungulira, ndi magnet block yonse, ndipo coil ndi stator yomwe sizungulira, chifukwa palibe burashi ya carbon pakati, iyi ndi mota yopanda brush.
Ndipo mota ya burashi, monga momwe dzinalo likusonyezera, ndi burashi ya kaboni, kotero pali mota ya burashi, monga momwe nthawi zambiri ana amasewera ndi remote control ya mota ndi mota ya burashi.
Malinga ndi mitundu iwiri ya makina amagetsi ndi dzina la burashi ndi burashi - malamulo amagetsi opanda mphamvu. Kuchokera ku lingaliro la akatswiri, burashi ndi mphamvu yotulutsa mphamvu yamagetsi mwachindunji, mphamvu yopanda burashi ndi ma ac atatu.
Mphamvu yolunjika ndi magetsi omwe amasungidwa mu batire yathu, omwe amatha kugawidwa m'magawo awiri: ma poles abwino ndi oipa. Mphamvu yamagetsi ya banja lathu ya 220V, yomwe imagwiritsidwa ntchito pochaja foni yam'manja kapena kompyuta, ndi ac. Ac imakhala ndi ma frequency enaake, nthawi zambiri imakhala mzere wa kuphatikiza ndi minus, kuphatikiza ndi minus kusinthana; Mphamvu yolunjika ndi poles abwino ndi poles oipa.
Tsopano popeza ac ndi dc zamveka bwino, kodi magetsi a magawo atatu ndi chiyani? Malinga ndi chiphunzitsochi, magetsi osinthira magawo atatu ndi mtundu wamagetsi wotumizira, wotchedwa magetsi a magawo atatu, omwe amapangidwa ndi mphamvu zitatu zosinthira zomwe zimakhala ndi ma frequency ofanana, amplitude ofanana komanso kusiyana kwa magawo a madigiri 120 motsatizana.
Kawirikawiri, ndi banja lathu lomwe limasintha magetsi atatu, kuwonjezera pa magetsi, ma frequency, ngodya yoyendetsa ndi yosiyana, zina ndizofanana, tsopano magetsi atatu ndi magetsi olunjika akumveka.
Choloweracho chili ndi mphamvu yamagetsi yolunjika, kudzera mu fyuluta capacitor kuti ikhazikitse mphamvu yamagetsi. Zonse ziwiri kenako zimagawidwa m'magawo awiri, njira yonse imagwiritsidwa ntchito ndi BEC yolamulidwa ndi magetsi, BEC ndi ya wolandila ndi MCU yolamulidwa ndi magetsi yomwe imagwiritsidwa ntchito pamagetsi, zomwe zimatuluka kupita ku wolandila chingwe chamagetsi ndi mizere yofiira pamzere ndi mzere wakuda, winayo umagwiritsidwa ntchito mu chubu cha MOS kuti ugwiritse ntchito njira yonse, apa, cholamulidwa ndi magetsi, SCM inayamba, kuyendetsa chitoliro cha MOS kugwedezeka, kupanga madontho a injini akutuluka.
Zosintha zina zamagetsi zimakhala ndi ntchito yowunikira throttle. Isanalowe mu dongosolo loyimirira, imayang'anira ngati malo owongolera throttle ali okwera kapena otsika kapena pakati. Ngati malo owongolera throttle ali okwera, idzalowa mu ulendo wowunikira throttle.
Zonse zikakonzeka, kompyuta yaying'ono yokhala ndi chip imodzi yomwe ili mu dongosolo lamagetsi idzasankha mphamvu yotulutsa ndi ma frequency komanso njira yoyendetsera ndi ngodya yolowera kuti iyendetse liwiro la mota ndikutembenuka molingana ndi chizindikiro chomwe chili pa mzere wa chizindikiro cha PWM. Iyi ndiye mfundo yosinthira ma electromagnetic popanda brushless.
Pamene galimoto yoyendetsa ikugwira ntchito, magulu atatu a chubu cha MOS amagwira ntchito mkati mwa magetsi, awiri pagulu lililonse, kutulutsa kwabwino ndi kolamulira, kutulutsa koletsa koletsa, pamene kutulutsa kwabwino ndi koipa, osati koipa, kutulutsa kwabwino ndi kwakukulu, kwapanga mphamvu yosinthira, komanso, kuti ichite ntchitoyi, magulu atatu a pafupipafupi yawo ndi 8000 hz. Ponena za izi, malamulo amagetsi opanda burashi ndi ofanana ndi injini ya fakitale yomwe imagwiritsidwa ntchito pa chosinthira ma frequency kapena governor.
Choloweracho ndi cha dc, nthawi zambiri chimayendetsedwa ndi mabatire a lithiamu. Chotulutsacho ndi ma ac atatu, omwe amatha kuyendetsa mota mwachindunji.
Kuphatikiza apo, galimoto yamagetsi yopanda brushless airmodel ilinso ndi mizere itatu yolowera ya ma signal, chizindikiro cha PWM cholowera, chomwe chimagwiritsidwa ntchito kuwongolera liwiro la injini. Kwa ma aeromodel, makamaka ma aeromodel a four-axis, ma aeromodel apadera amafunikira chifukwa cha umunthu wawo.
Nanga n’chifukwa chiyani mukufunikira kukonza magetsi mwapadera pa quad, ndi chiyani chapadera kwambiri pa iyo?
Chida chozungulira chili ndi ma OARS anayi, ndipo ma OARS awiriwa ndi opingasa pang'ono. Kuzungulira kutsogolo ndi kuzungulira kumbuyo pa chiwongolero cha paddle kumatha kuthetsa mavuto ozungulira omwe amayambitsidwa ndi kuzungulira kwa tsamba limodzi.
M'mimba mwake mwa bwato lililonse ndi wochepa, ndipo mphamvu ya centrifugal imafalikira pamene ma OARS anayi akuzungulira. Mosiyana ndi paddle yowongoka, pali mphamvu imodzi yokha ya inertial centrifugal yomwe imapanga mphamvu ya centrifugal yokhazikika yomwe imapanga gyroscopic property, zomwe zimapangitsa kuti fuselage isatembenuke mwachangu.
Chifukwa chake, pafupipafupi kusintha kwa chizindikiro chowongolera zida zowongolera ndi kochepa kwambiri.
Ma axis anayi kuti ayankhe mwachangu, poyankha kusintha kwa mawonekedwe komwe kumachitika chifukwa cha kusunthika, amafunika kusinthidwa kwamagetsi othamanga kwambiri, liwiro lokonzanso la PPM yoyendetsedwa ndi magetsi yamagetsi ya 50 hz yokha, silikwaniritsa zosowa zomwe zimawongolera liwiro, ndipo PPM yowongolera magetsi ya MCU yomangidwa mu PID, kodi kusintha kwa liwiro la ndege yachitsanzo yachitsanzo yachitsanzo kungapereke kusalala, pa ma axis anayi sikoyenera, kusintha kwa liwiro la injini ya ma axis anayi komwe kukufunika ndi yankho lachangu.
Ndi kusintha kwapadera kwamagetsi kwachangu kwambiri, chizindikiro chowongolera ma transmission cha IIC bus interface, chimatha kusintha liwiro la injini mazana ambiri pa sekondi iliyonse, mu ndege ya axis zinayi, nthawi yowonera imatha kukhala yokhazikika. Ngakhale ndi mphamvu zakunja zomwe zimakhudzidwa mwadzidzidzi, sizikuwonongeka.
Mungakonde:
Nthawi yotumizira: Ogasiti-29-2019
