Mapangidwe ndi mfundo zogwirira ntchito za Haldex all-wheel drive clutch

Haldex clutch ndiye gawo lalikulu la dongosolo la XNUMXWD, lomwe limapereka kufalikira kwa torque, kuchuluka kwake komwe kumadalira kuchuluka kwa kuponderezana kwa clutch. Nthawi zambiri, chipangizochi chimatumiza torque kuchokera kutsogolo kupita ku ekseli yakumbuyo yagalimoto. Makinawa ali kumbuyo kwa ekseli yosiyana. Taganizirani mfundo ya ntchito, zigawo zikuluzikulu za kugwirizana Haldex, makhalidwe a m'badwo uliwonse, ubwino ndi kuipa.

Momwe clutch imagwirira ntchito

Tiyeni tiwunikenso mfundo yogwiritsira ntchito 4Motion system monga chitsanzo. Izi zodziwikiratu zoyendetsa magudumu anayi zimayikidwa pa magalimoto a Volkswagen. Njira zazikulu zogwiritsira ntchito Haldex coupling:

1. Kuyamba kuyenda - galimoto imayamba kusuntha kapena kuthamanga, torque yayikulu imaperekedwa ku chitsulo chakumbuyo. Ma frictions a clutch pankhaniyi amatsitsidwa kwathunthu, ndipo valavu yowongolera imatsekedwa. Valve yowongolera ndi gawo la dongosolo lowongolera, pomwe malo ake amatsimikizira kupanikizika kwa ma discs. Kupanikizika kwamtengo, kutengera njira yogwirira ntchito ya clutch, kumachokera ku 0% mpaka 100%.
2. Wheel spin start - galimoto imayamba ndi mawilo akutsogolo akuzungulira, ndiye torque yonse imasamutsidwa kumawilo akumbuyo. Ngati gudumu limodzi lokha lakutsogolo likutsika, ndiye kuti loko yamagetsi imayatsidwa poyamba, ndiyeno clutch iyamba kugwira ntchito.
3. Kuyendetsa pa liwiro lokhazikika - liwiro silisintha panthawi yosuntha, ndiye kuti valavu yowongolera imatsegulidwa ndipo mikangano ya clutch imapanikizidwa ndi mphamvu zosiyanasiyana (malingana ndi momwe magalimoto amayendera). Mawilo akumbuyo amangoyendetsedwa pang'ono.
4. Kuyendetsa ndi kutsetsereka kwa gudumu - kuthamanga kwa magudumu agalimoto kumatsimikiziridwa ndi zizindikiro za masensa ndi gawo lowongolera la ABS. Valavu yowongolera imatsegula kapena kutseka kutengera khwangwala ndi mawilo omwe akutsetsereka.
5. Braking - pamene galimoto ikucheperachepera, zowawa zimamasulidwa mokwanira, motero, valavu imatsegulidwa. Munjira iyi, torque simatumizidwa ku ekisi yakumbuyo.

Momwe Haldex imagwirira ntchito

Ganizirani zigawo zazikulu za kuphatikiza kwa Haldex:

• Phukusi la Friction disc. Amakhala ndi ma discs ogundana ndi kuchuluka kwa coefficient of friction ndi ma disc achitsulo. Zakale zimakhala ndi kugwirizana kwamkati kwa hub, zotsirizirazi zimakhala ndi kugwirizana kwakunja kwa ng'oma. Ma disks ochulukirapo mu paketi, amakulitsa torque yotumizira. Ma disks amaponderezedwa ndi ma pistoni pansi pa mphamvu yamadzimadzi.
• Electronic control system. Komanso, imakhala ndi masensa, unit control ndi actuator. Zizindikiro zolowetsa ku clutch control system zimachokera ku ABS control unit, unit control unit (mayunitsi onse amatumiza uthenga kudzera pa CAN bus) ndi sensor kutentha kwamafuta. Chidziwitsochi chimakonzedwa ndi unit control unit, yomwe imapanga zizindikiro za actuator - valve control valve, yomwe chiwerengero cha kupanikizika kwa ma disks chimadalira.
• The hydraulic accumulator ndi hydraulic pump imasunga kupanikizika kwamafuta mu clutch mkati mwa -3 MPa.

Kukula kwa Haldex Couplings

Pakali pano pali mibadwo isanu ya Haldex. Tiyeni tiwone makhalidwe a m'badwo uliwonse:

1. Mbadwo woyamba (kuyambira 1998). Maziko a clutch ndi njira yomwe imatsimikizira kusiyana kwa liwiro la ma shaft kupita kutsogolo ndi kumbuyo kwa magalimoto. Makinawa amatsekeka pamene chitsulo chotsogolera chikuterera.
2. M'badwo Wachiwiri (kuyambira 2002). Mfundo ya ntchito sinasinthe. Kusintha kwaukadaulo kokha kwapangidwa: kuyika m'nyumba imodzi yokhala ndi chosiyana chakumbuyo, valavu ya electro-hydraulic yasinthidwa ndi solenoid valve (kuwonjezera liwiro), pampu yamagetsi yakhala yamakono, fyuluta yamafuta yopanda kukonza yayikidwa. , kuchuluka kwa mafuta kwawonjezeka.
3. M'badwo wachitatu (kuyambira 2004). Kusintha kwakukulu kwapangidwe ndi pampu yamagetsi yogwira ntchito bwino komanso valve yowunikira. Chipangizocho tsopano chikhoza kutsekedwatu pakompyuta. Pambuyo pa ma milliseconds 150, makinawo amatsekedwa kwathunthu.
4. M'badwo wachinayi (kuyambira 2007). Mfundo ya ntchito sinasinthe. Kusintha kwachipangidwe: kupanikizika mu hydraulic system ya makina tsopano kumapanga pampu yamphamvu yamagetsi, clutch imayendetsedwa ndi magetsi okha, chipangizo chachinayi chimayikidwa pamakina omwe ali ndi ESP. Kusiyanitsa kwakukulu ndikuti kuthamanga kosiyanasiyana kutsogolo ndi ma axles akumbuyo sikulinso chikhalidwe chogwiritsira ntchito clutch.
5. M'badwo wachisanu (kuyambira 2012). Mfundo ya ntchito sinasinthe. Mapangidwe a m'badwo waposachedwa wa Haldex: pampu imayenda mosalekeza, zowongolera zimayendetsedwa ndi magetsi kapena ma hydraulically, makinawo amatha kusinthidwa padera. Kusiyana kwakukulu ndi mlingo wapamwamba wa zigawo za khalidwe.

Ubwino ndi kuipa kwa clutch

ubwino:

• nthawi yocheperako (mwachitsanzo, kulumikizana kwa viscous kumapangitsa kuti mawilo asunthike ndikutseka);
• miyeso yochepa;
• ikhoza kuphatikizidwa ndi machitidwe odana ndi skid;
• amakulolani kuti mupewe katundu wolemetsa pakupatsirana poyimitsa ndi kuyendetsa galimoto;
• kulamulira kwamagetsi.

kuipa:

• kulenga mosayembekezereka kupanikizika mu dongosolo (m'badwo woyamba);
• kuzimitsa clutch pambuyo pa kulowererapo kwa machitidwe amagetsi (1st ndi 2nd mibadwo);
• popanda kusiyanitsa pakati, kotero chitsulo chakumbuyo sichingazungulire mwachangu kuposa chitsulo chakutsogolo (zowomba za m'badwo wachinayi);
• popanda fyuluta, chifukwa chake, kusintha kwamafuta pafupipafupi ndikofunikira (m'badwo wachisanu);
• Zinthu zamagetsi nthawi zambiri zimakhala zodalirika kuposa zamakina.

M'badwo wachinayi wa mayunitsi a Haldex ndi imodzi mwazinthu zabwino kwambiri zama plug-in-wheel drive system. Clutch iyi imagwiritsidwa ntchito pa Bugatti Veyron yodabwitsa. Makinawa akhala otchuka chifukwa cha kuphweka kwake, kudalirika komanso kulamulira kwapamwamba kwambiri pakompyuta. Kumbukirani kuti Haldex clutch chimagwiritsidwa ntchito osati magalimoto Volkswagen (mwachitsanzo, Golf, Transporter, Tiguan), komanso magalimoto opanga ena: Land Rover, Audi, Lamborghini, Ford, Volvo, Mazda, Saab ndi ena.