Chaka chatha, basi yamagetsi yokha idakumana ndi vuto ladzidzidzi la brake assist pa gawo lotsika mosalekeza la Yunnan-Guizhou Plateau. Kafukufuku adapeza kuti chifukwa chachikulu chinali kulephera kwa vacuum controller imodzi yomwe idapangitsa kuti vacuum pump iyime, ndipo thanki yaying'ono ya vacuum inalibe malo okwanira osungira mphamvu, zomwe zidapangitsa ngozi yayikulu1. Mlanduwu udawulula zoopsa za kapangidwe ka makina achikhalidwe othandizira vacuum ndipo udapangitsanso makampaniwo kuyamba kuyang'ananso ntchito yofunika kwambiri ya ma micro DC vacuum pumps mumakina othandizira zamagetsi zamagalimoto.

N’chifukwa chiyani magalimoto amagetsi amadalira ma micro vacuum pumps?

Mu magalimoto achikhalidwe amafuta, injini yolowetsa mafuta imapanga mphamvu yoipa mwachibadwa, zomwe zimapangitsa kuti pakhale vacuum source yaulere ya brake assist system4. Komabe, magalimoto amagetsi alibe injini, ndipo popanda vacuum source, brake pedal imakhala yolemera kwambiri - mphamvu ya braking ya manual braking yokha siikwaniritsa zofunikira zachitetezo.

Panthawiyi, aPumu ya vacuum ya micro DCp imakhala yankho lokhalo:

Kuyendetsa magetsi: gwiritsani ntchito mwachindunji magetsi a galimoto ya 12V/24V, yendetsani pistoni kapena diaphragm kuti muyende mwachangu kudzera mu injini, ndikutulutsa vacuum3 mwachangu;

Yankho lachangu:Mwachitsanzo, HD-PC3025N ikhoza kukhazikitsa mphamvu yoipa ya -70kPa mkati mwa sekondi imodzi kuti ikwaniritse zosowa za braking zadzidzidzi3;

Kupereka mphamvu kodziyimira pawokha:osati chifukwa cha momwe injini imagwirira ntchito, imatha kugwira ntchito ngakhale galimotoyo itakhala yosasuntha

Kodi mapampu a vacuum ang'onoang'ono amatha bwanji kuthana ndi zopinga ndikukwaniritsa zofunikira zamagalimoto?

1. Zizindikiro za magwiridwe antchito: kulinganiza pakati pa vacuum ndi kayendedwe ka madzi

Vuto la Plateau:Pamtunda wa mamita 3,000, kuthamanga kwa mpweya kumatsika kufika pa 70kPa (101kPa pamalo otsetsereka). Ngati mpweya wochepa wa pampu ndi -50kPa yokha, kuthamanga kwenikweni koyipa kudzachepa kufika pa -20kPa, zomwe zimapangitsa kuti pakhale kusowa kwakukulu kwa thandizo la mabuleki. Chifukwa chake, ndikofunikira kusankha chitsanzo chokhala ndi mpweya wochepa wa ≥-70kPa (monga PC3025N) kuti musiye malire otetezeka.

Kuchepetsa kuyenda kwa madzi:Pa mpope wokhala ndi kayendedwe ka 25L/mphindi, kayendedwe kake kangachepe kufika pa 15L/mphindi mutalumikiza chitoliro cha mita imodzi + zigongono ziwiri. Pa nthawi yopumira mosalekeza (monga kutsika phiri lalitali), ngati kayendedwe ka madzi sikakwanira ndipo kuthamanga kwa thanki ya vacuum sikungatheke, alamu ya brake idzayatsidwa.

 

2.Kudalirika: Inshuwaransi iwiri yoteteza ku kulimba ndi kulephera

Mayeso a kupirira kwa maola 1500:Ruhaizhibo iEVP Pro yakonzedwa bwino ndi ma rotor a graphite, ndipo nthawi yake yogwira ntchito imaposa nthawi ya mpikisano wapadziko lonse lapansi.

Gawo 2: Linganizani vacuum ndi flow

Tebulo lofufuzira mwachangu (potengera zitsanzo zodziwika bwino za Pincheng)

 

Kapangidwe kake kawiri kowongolera:Dongosolo latsopanoli limagwiritsa ntchito zowongolera ziwiri zoyendera limodzi. Ngati chimodzi chalephera, chinacho chikhozabe kulamulira pampu kuti igwire ntchito, ndikuchotsa kulephera kwa mfundo imodzi

Njira yanzeru yochepetsera katundu:Pamene vacuum leak (kuthamanga kwachilendo kwa mpweya) yapezeka, imasintha yokha kukhala njira yogwirira ntchito nthawi ndi nthawi kuti injini isazime.

Kusinthasintha kwa chilengedwe: kuyambira kuzizira kwambiri mpaka chinyezi chambiri

Kulekerera nthunzi ya madzi:Makina oyendetsera mabuleki amatha kupumira mpweya wonyowa, ndipo mapampu wamba amatha kuchita dzimbiri. Komabe, pampu ya PC mini vacuum imalola kuti cholumikiziracho chikhale "chodzaza ndi nthunzi yamadzi" ndipo chimagwiritsa ntchito zomatira za fluororubber mkati.

-30℃ kuyamba kozizira:Mapampu a injini opanda burashi (monga VML series) amathabe kuyankha mwachangu kutentha kochepa, kupewa chiopsezo cha kulimba kwa makina achikhalidwe a hydraulic

 

3. Mavuto Enieni: Zopinga ndi Mayankho a Microchotsukira mpweyamapampu

Ngakhale kuti ukadaulowu ndi wachikulire, mapampu ang'onoang'ono akadali ndi mavuto atatu akuluakulu omwe amagwiritsidwa ntchito:

Kugwiritsa ntchito mphamvu ndi mkangano wa NVH (phokoso ndi kugwedezeka)

Mapampu othamanga kwambiri nthawi zambiri amakhala ndi mphamvu yoposa 40W, ndipo kugwira ntchito mosalekeza kumagwiritsa ntchito mphamvu zambiri (zomwe zimapangitsa pafupifupi 0.5% ya kuchuluka kwa magalimoto amagetsi). Nthawi yomweyo, phokoso la injini limatha kutumizidwa ku chipinda chosungiramo katundu. Mayankho:

Mota yopanda burashi + kulamulira ma frequency osiyanasiyana: Mwachitsanzo, mndandanda wa VML umachepetsa kugwiritsa ntchito mphamvu popanda kugwira ntchito potsatira malamulo a liwiro7;

Chivundikiro chosamveka bwino + kuchepetsa kugwedezeka kwa payipi: njira yodziwika bwino ya OEMs.

Chiwopsezo cha kutentha kwambiri m'malo otsetsereka komanso kutayikira kwa madzi

Pamalo otsetsereka kapena pamene chisindikizo chalephera, pampu imatha kutentha kwambiri chifukwa cha kugwira ntchito kwa nthawi yayitali. Woyang'anira watsopanoyo mwanzeru amaimitsa pampu kudzera mu kuyang'anira kuchuluka kwa mphamvu:

Ngati mphamvu ya pressure drop gradient ili pansi pa 8mbar/s mkati mwa masekondi 10 kuchokera pamene ntchito ikuchitika, dongosololi limaonedwa kuti ndi labwinobwino ndipo pampu imayimitsidwa nthawi yomweyo;

Ngati kupendekera kwa nthaka sikuli bwino (kutuluka kwa madzi), kudzalowa mu "ntchito masekondi 15 + kuyimitsa masekondi 10"4.

Masewera a malo ndi mtengo

Mapampu akuluakulu (monga PC3025N) amalemera 1kg ndipo amakhala pamalo a chassis. Ngakhale kuti yankho la dual controller + la vacuum tank lalikulu limathandizira kudalirika, mtengo wake umawonjezeka ndi pafupifupi 30%15. Chizolowezi cha makampani ndi kapangidwe kogwirizana: Haizhibo imayika chowongoleracho m'thupi la pampu kuti ichepetse mawaya ndi ma interfaces6.

 

Ulendo wamtsogolo: osati "ntchito yongothandiza" yokha

Ndi kukweza kuyendetsa mwanzeru, ntchito za mapampu ang'onoang'ono otulutsa mpweya zikukulirakulira:

Kusunga kofunikira pakuyendetsa galimoto yodziyimira payokha pamwamba pa mulingo wa L3:Pamene brake yamagetsi ya hydraulic yalephera, makina owonjezera a vacuum amatenga malo ngati chosungira chamakina7;

Mpweya woyimitsidwa wogwira ntchito:Mitundu ina imagwiritsa ntchito pampu yofanana ya vacuum kuti ipereke mphamvu ku kasupe wa mpweya, zomwe zimapangitsa kuti "pampu imodzi igwiritsidwe ntchito mosiyanasiyana"6;

Kuzungulira kwa hydrogen mu galimoto yamafuta a haidrojeni:Mapampu ang'onoang'ono osapsa ndi dzimbiri amagwiritsidwa ntchito mu kayendedwe ka haidrojeni kuti awonjezere kugwiritsa ntchito mafuta3.

 

Kutsiliza: Zigawo zazikulu, koma kukonza bwino kwa dongosolo ndikofunikira

Mapampu a vacuum a Micro DC amakwaniritsa zosowa za magetsi zamagalimoto amakono, koma ayenera "kusankhidwa malinga ndi zizindikiro":

Magalimoto a mabanja:Mlingo wa PC3025N (-70kPa, 25L/min) wokhala ndi chowongolera chimodzi + thanki ya vacuum ya 8L ndi wokwanira8;

Magalimoto amalonda/ma model a m'mapiri: amafuna mapampu opitilira -80kPa + owongolera awiri + matanki akuluakulu a vacuum a 15L, ndikusintha kuwunika kwa pressure gradient14;

Magalimoto anzeru amtsogolo:Mapampu a injini opanda burashi (monga VML) adzakhala otchuka, poganizira momwe zinthu zilili, bata komanso kulamulira mwanzeru67.

Monga momwe mainjiniya amavomerezera: Kaya ntchito ya pampu imodzi ndi yolimba bwanji, siili bwino monga momwe dongosolo limagwirizanirana ndi "pump-tank-controller-sensor". Mukasankha, simuyenera kungoyang'ana magawo odziwika a pampu, komanso kutsimikizira mphamvu yake yonyamula katundu ndi njira yoyankhira zolakwika mu dongosolo lonse la galimoto - pambuyo pake, ma millisecond pakati pa mabuleki amatsimikiza malire a moyo wa chitetezo.

Shenzhen Pincheng Motorali ndi zaka zambiri zogwira ntchito mu kafukufuku ndi chitukuko komanso kupangamapampu ang'onoang'ono otulutsa mpweya, ndipo yapambana satifiketi ya magalimoto ya IATF 16949, yomwe ingapereke mayankho abwino opangira zida zamagalimoto.