Idizayini kanye nesimiso sokusebenza kwe-clutch ye-Haldex all-wheel drive

I-Haldex clutch iyingxenye eyinhloko yesistimu ye-XNUMXWD, ehlinzeka ngokudluliswa kwe-torque elawulwayo, inani layo elincike ezingeni lokucindezelwa kwe-clutch. Ezimweni eziningi, le divayisi idlulisa i-torque isuka ku-axle yangaphambili iye ku-axle yangemuva yemoto. Lo mshini utholakala endaweni ehlukile ye-asi engemuva. Cabanga ngesimiso sokusebenza, izingxenye ze-Haldex coupling, izici zesizukulwane ngasinye, izinzuzo nezingozi zabo.

Isebenza kanjani i-clutch

Ake sihlaziye isimiso sokusebenza sisebenzisa uhlelo lwe-4Motion njengesibonelo. Le ozishintshayo edonsa ngamasondo amane ifakwe ezimotweni zakwaVolkswagen. Izindlela eziyinhloko zokusebenza kwe-Haldex coupling:

1. Ukuqala kokunyakaza - imoto iqala ukuhamba noma ukusheshisa, i-torque enkulu inikezwa ku-axle yangemuva. Izingxabano ze-clutch kuleli cala zicindezelwe ngokugcwele, futhi i-valve yokulawula ivaliwe. I-valve yokulawula iyisici sesistimu yokulawula, isikhundla esinquma ingcindezi kuma-disc friction. Inani lokucindezela, kuye ngokuthi imodi yokusebenza ye-clutch, isukela ku-0% kuya ku-100%.
2. I-Wheel spin start - imoto iqala ngamasondo angaphambili ajikelezayo, bese yonke i-torque idluliselwa emasondweni angemuva. Uma kushelela isondo langaphambili elilodwa kuphela, khona-ke i-electronic differential lock iqala ukusebenza, bese i-clutch iqala ukusebenza.
3. Ukushayela ngesivinini esingaguquki - isivinini asishintshi ngesikhathi sokunyakaza, khona-ke i-valve yokulawula ivula futhi ama-clutch frictions acindezelwa ngamandla ahlukene (kuye ngokuthi izimo zokushayela). Amasondo angemuva ashayelwa kancane.
4. Ukushayela nge-wheel slippage - isivinini sokujikeleza kwamasondo emoto sinqunywa amasignali wezinzwa kanye neyunithi yokulawula ye-ABS. I-valve yokulawula iyavula noma ivaleke kuye ngokuthi iyiphi i-ekseli nokuthi yimaphi amasondo ashelelayo.
5. I-Braking - lapho imoto inciphisa, i-clutch ikhishwa ngokugcwele, ngokulandelana, i-valve ivuliwe. Kule modi, i-torque ayidluliselwa ku-axle yangemuva.

Isebenza kanjani i-Haldex

Cabangela izingxenye eziyinhloko zokuhlanganisa i-Haldex:

• Iphakethe le-friction disc. Iqukethe ama-friction discs ane-coefficient eyengeziwe yokungqubuzana namadiski ensimbi. Owokuqala unokuxhumana kwangaphakathi kuhabhu, okugcina kunokuxhumana kwangaphandle kusigubhu. Lapho ama-disc amaningi ephaketheni, iba nkulu i-torque edlulisiwe. Ama-disc acindezelwa ama-piston ngaphansi kwesenzo sokucindezela kwamanzi.
• Uhlelo lokulawula ngogesi. Yona-ke iqukethe izinzwa, iyunithi yokulawula kanye ne-actuator. Amasignali okokufaka kusistimu yokulawula i-clutch avela kuyunithi yokulawula ye-ABS, iyunithi yokulawula injini (womabili amayunithi adlulisa ulwazi ngebhasi le-CAN) kanye nenzwa yokushisa kawoyela. Lolu lwazi lucutshungulwa yiyunithi yokulawula, eyenza izimpawu ze-actuator - i-valve yokulawula, lapho isilinganiso sokucindezela amadiski sincike khona.
• I-accumulator ye-hydraulic kanye nepompo ye-hydraulic igcina ingcindezi kawoyela ku-clutch ngaphakathi -3 MPa.

Ukuthuthukiswa kwe-Haldex Couplings

Njengamanje kunezizukulwane ezinhlanu ze-Haldex. Ake sibheke izici zesizukulwane ngasinye:

1. Isizukulwane sokuqala (kusukela ngo-1998). Isisekelo se-clutch siwumshini onquma umehluko wejubane lama-shafts ukuya kuma-ekseli angaphambili nangemuva ezimoto. Umshini uyavinjwa lapho i-ekseli eholayo ishelela.
2. Isizukulwane sesibili (kusukela ngo-2002). Umgomo wokusebenza awukashintshi. Ukuthuthukiswa kwezobuchwepheshe kuphela okwenziwe: ukubekwa endlini eyodwa enomehluko ongemuva, i-valve ye-electro-hydraulic ishintshiwe nge-valve ye-solenoid (ukwandisa isivinini), iphampu kagesi yenziwe yesimanje, isihlungi samafutha esingalondolozi sifakiwe. , inani lamafutha liye landiswa.
3. Isizukulwane sesithathu (kusukela ngo-2004). Ushintsho oluyinhloko lokuklama luyipompo likagesi elisebenza kahle kanye ne-valve yokuhlola. Idivayisi manje ingakhiywa ngaphambilini nge-elekthronikhi. Ngemuva kwama-millisecond angu-150, indlela ivinjwe ngokuphelele.
4. Isizukulwane sesine (kusukela ngo-2007). Umgomo wokusebenza awukashintshi. Ukuguqulwa kwesakhiwo: ukucindezela ohlelweni lwe-hydraulic of the mechanism manje kudala iphampu kagesi enamandla, i-clutch ilawulwa kuphela nge-electronics, idivayisi yesizukulwane sesine ifakwe kuphela emishinini enesistimu ye-ESP. Umehluko omkhulu wukuthi ijubane elihlukene kuma-ekseli angaphambili nangemuva akusesona isimo sokuhlanganisa i-clutch.
5. Isizukulwane sesihlanu (kusukela ngo-2012). Umgomo wokusebenza awukashintshi. Izici zokuklama zesizukulwane sakamuva se-Haldex: iphampu isebenza ngokuqhubekayo, ama-clutch alawulwa ngogesi noma nge-hydraulic, umshini ungashintshwa ngokuhlukana. Umehluko omkhulu izinga eliphezulu lezingxenye zekhwalithi.

Izinzuzo nezingozi ze-clutch

Преимущества:

• isikhathi esincane sokuphendula (isibonelo, ukuhlangana kwe-viscous kuvumela amasondo ukuthi ashelele bese evala);
• ubuncane bobukhulu;
• ingahlanganiswa ne-anti-skid systems;
• ikuvumela ukuthi ugweme imithwalo esindayo ekudluliseni lapho upaka futhi uqondisa imoto;
• isilawuli ngogesi.

nemibi:

• ukwakhiwa okungazelelwe kokucindezela ohlelweni (isizukulwane sokuqala);
• ukucisha i-clutch ngemva kokungenelela kwezinhlelo ze-elekthronikhi (isizukulwane sokuqala nesesi-1);
• ngaphandle kokuhluka kwesikhungo, ngakho-ke i-axle yangemuva ayikwazi ukujikeleza ngokushesha kune-axle yangaphambili (izibambo zesizukulwane sesine);
• ngaphandle kwesihlungi, ngenxa yalokho, ukuguqulwa kwamafutha njalo kuyadingeka (isizukulwane sesihlanu);
• Izakhi ze-elekthronikhi ngokuvamile azithembeki kangako kunemishini.

Isizukulwane sesine samayunithi we-Haldex ingenye yezinhlelo ezingcono kakhulu zokushayela amasondo onke. Le clutch isetshenziswa kuBugatti Veyron emangalisayo. Lo mshini usudumile ngenxa yobulula bawo, ukwethembeka nokulawula kwe-elekthronikhi okusezingeni eliphezulu. Khumbula ukuthi i-Haldex clutch isetshenziswa kabanzi hhayi kuphela ezimotweni zeVolkswagen (isibonelo, igalofu, i-Transporter, i-Tiguan), kodwa futhi ezimotweni zabanye abakhiqizi: Land Rover, Audi, Lamborghini, Ford, Volvo, Mazda, Saab nabanye.