nghien cuu - trao ooi

NGHIEN CUU - TRAO OOI

N G H I E N C U U T H I E T K E V A C H E TOO H E T H O N G P H U N X f l N G D I E N T U T H P Y T H E C H O H E T H O N G D U N G B O C H E H O T K H I T R E N X E M A Y

(*) PHAM M I N H TUAN, NGUYEN DUY T l f i N LE ANH TUAN, NGUYEN THE TRUC, TRANANH TRUNG

(**) LE DANG DONG

1. G l 6 l T H I E U

Theo Cue Dang kiem Viet Nam, tinh den 2010, Viet Nam co 1.394.858 xe 6 to nhung co tdi khoang 33 trieu chiec xe may dang luu hanh, chiem 95% so lupng phuong tien giao thong va dap ung 90% nhu cau di lai tai cac thanh pho Idn. Hang nam, con co them khoang 3 trieu xe may va 150.000 6 to mdi tham gia giao thong.

Nhu vay, xe may d Viet Nam la loai phuong tien giao thong chu yeu nhung cung la mpt trong nhung nguon 6 nhiem chu yeu doi vdi cac thanh pho Idn.

De tiet kiem nhien lieu va giam phat thai 6 nhiem moi trudng, trong nhung nam gan day, cac nha san xuat da sir dung cong nghe phun xang dien tir (Electronic Fuel Injection - EFI) cho moto-xe may. Tai Viet Nam da cd mpt so kieu xe sir dung EFI ciia cac hang nhu:

Honda (vdi Future Neo FI, Lead, AirBladeFI); hang Piaggio (vdi Vespa GTS 125 Super i.e) va VMEP (vdi Attila Elizabeth EFI)... Tuy nhien, so nay chi chiem khoang 5% tong so xe dang luu hanh, 95% so con lai van sir dung bp che hda khi tieu thu nhieu nhien lieu va phat thai nhieu doc hai.

Nham gop phan tim nhung giai phap kha thi giam tieu hao nhien lieu va phat thai 6 nhiem moi trudng, tai Phdng thi nghiem Dong co dot trong, Truong Dai hpc Bach khoa Ha Npi da thuc hien de tai "Nghien cuu thiet ke va che tao he thdng phun xang dien tir thay the cho he thong dimg bo che hoa khi tren xe may". Ket qua cu the, doi vdi xe Honda SuperDream, da dat muc tieu ban dau de ra, do la giam tieu thu nhien lieu va phat thai doc hai. Giai phap nay cd the ap dung cho cac xe may khac dang luu hanh va cac xe may gia re cd nguon goc tu Trung Quoc dang san xuat, lap rap tai Viet Nam.

* Vien Ca khi Dong luc, Truong Dai hpc Bach khoa HaNpi

** Khoa Co khi Dong lire, Truong Dai hpc Su pham Ky ttiuat Hung Yen

2. T H I E T K E , C H E T A O H E T H O N G E F I C H O X E M A Y

2.1. Lua chgn ddi tuang nghien cuu

Thong qua kinh nghiem thuc te, qua tim hieu, thu thap thong tin, so lieu ve su thong dung, thi phan cua cac loai xe gia re pho bien 0 nuoc ta, chiing toi nhan thay, dong xe Dream ciia hang Honda co dung tich cong tac danh nghia 100 cm³ duoc dung kha pho bien tai nude ta.

Ngoai ra, cac loai xe xuat xir Trung Quoc, cac dong xe khac co ket cau -thong so co ban gan giong nhu Honda Dream cung kha pho bien nhu: Wave a, Detech, Sufat, T&T... Chinh vi vay, chiing tdi chpn xe SuperDream ciia hang Honda Viet Nam cho viec ung dung de nghien ciiu thuc hien de tai. Chiec xe dupe chpn thi nghiem la chiec xe thi nghiem ciia Phong Thir nghiem xe may, Phdng thi nghiem Dong co dot trong, DHBK Ha Npi, da chay dupe khoang 40.000 km. Trudc khi cai tien, xe duoc thii nghiem do dac cac thong so kinh te, ky thuat va phat thai de lam so lieu so sanh doi chiing.

He thong nhien lieu phun xang dien tir co so do nhu tren hinh 1. Be thuc hien de tai, mpt so bo phan, linh kien duoc tinh toan, chpn mua tren thi truong ma cong nghe trong nude khong che tao dupe hoac che tao dupe nhung gia thanh qua cao. Cac bp phan con lai duoc thiet ke, che tao trong khuon kho ciia de tai.

2.2. Lua chon edephan tu cua he thdng

Cac phan tir can phai mua gom: bom xang, c6 hong gid, van khdng tai, cac cam bien va voi phun.

Bom xang: Dupe lua chpn la loai bom LGL3, kieu dat trong thiing xang ciia hang KYMCO, cd so do nguyen ly hoat dong the hien tren hinh 2. Day la loai bom cd tich hpp bo dieu ap dupe sit dung tren xe may

lOOcc dupe lap rap tai Dai Loan. ' TAP CHI CO KHI VIET NAM • So 4 - Thang 4 nam 2011 Q l

Van khong tai: Dupe lua chpn la loai dieu khien dong mo bang dien tir, co ky hieu SYNERJECT 379008.

Loc gio. Cam bien vi tri biftfrn ga\ Cam bien ap sual _J _ dtrbug ong nap

^-Cam bien vi tri tnic khuyu Hinh 1: S a do he thong nhien lieu phun xang dien hi Co hong gio: Dupe lua chpn la TYPE 72, cua hang BING (xem hinh 5), la loai tich hpp cam bien budm ga da dupe dung tren cac ddng xe co dung tich cong tac tuong tu nhu cua dong co Honda SuperDream va co ket cau phii hop vdi yeu cau lap tren xe nay.

Cam bien do luu luong khi nap: Duoc lua chpn cua hang SIEMENS, cd ky hieu SYNERJECT 366-008 5WK9 686, hinh 3b. Day la loai cam bien do ap suat dudng nap tich hpp cam bien nhiet do khi nap.

Van mot chieu

Than born

Lutfi gat

Canh btJm Nhien lieu

Hinh 2: So do nguyen ly bom xang dat trong thung Cam bien lambda: (Lap tren dudng thai, hinh 6), dupe chpn la loai cam bien oxy Zr02 say nong ben trong LP-40289 model CP 10, dung de lay tin hieu ve he so du lupng khong khi X.

Cam bien nhiet do dong co: Dupe su dung la loai SITX18T ciia dong co xe BMW M3, dung de lay tin hieu nhiet dp dong co tai nap xylanh.

Vdi phun: Dupe chpn la voi phun DEKA Short type, co chieu cao 34,5 mm, trd khang cao khoang 13Q, tia phun nghieng 17°, luu lupng va ap suit phun phii hpp vdi loai xe thi nghiem, hinh 3 a.

2.3. Thiet ke, che tao mot so bo phan ciia he thdng He thong nap thai: Dupe thiet ke bang phan mem mo phong CATIA V5R20, [1], [2].

Duong nap: Can bo tri lap dat co hong gio va vdi phun mpt each toi uu [1]. V i tri lap voi phun va bien dang co hut duoc thiet ke sao cho tia phun it bam thanh nhat, hudng thang vao vi tri xupap nap, la noi co nhiet dp kha cao, giiip cai thien qua trinh boc hoi cua nhien lieu, dong thoi phai bao dam sue can nhd doi vdi ddng khi nap. Ngoai ra, bien dang dudng nap dupe thiet ke sao cho tao nen xoay 16c nhe ciia ddng khong khi nap, tang cudng qua trinh hoa tron hon hop trudc khi vao dong co. Cudi ciing, dudng nap phai dam bao yeu cau tin dung toi da cac bp phan hien cd cua xe, co the lap dat duoc trong khoang khong gian bi han che ma khong gay anh hudng den cac tinh nang ky thuat ciia xe khi van hanh. De thi nghiem, dudng nap dupe che tao don chiec bang ong thep uon dua theo bien dang va ket cau tir tinh toan md phdng [1], [2].

a) b) Hinh 3: Vdi phun DEKA (a) va cam bien do luu luong khi

nap SYNERJECT (b)

Duong thai: Tuong tu nhu dudng nap, dupe cai tien tren co so duong ong thai cu ciia xe de thuan tien cho viec lap dat, tan dung lai thiet bi ciia xe. Do phai lap them cam bien oxy va bp xiic tic khi thai, de giam bot he so can tren duong thai nen kich thudc phia dau dudng thai dupe cai tien Ion hon mpt chut, [1], [2]. Tuy nhien, do kho khan trong viec dat mua don chiec bp xir ly xuc tic khi thai 3 thanh phan tir nude ngoai nen dudng thai chi du tinh khong gian de lap bp xii ly khi thai trong tuong lai ma thoi.

d l TAP CHI CO KHI VIET NAM *l* Sd 4 - Thang 4 nam 2011

NGHIEN CUU - TRAO DOI

m E m m m W m 3-4-3 Hinh 4. Bo mach cua ECU

Thung nhien lieu: Dugc cai tien tir thung nhien lieu ciia xe nguyen thuy, sao cho lap duoc bom xang vao ben trong giong nhu 6 cac xe may phun xang dien tir hien co tren thi truong [1].

Bo dieu khien dien tir (Electronic Control Unit - ECU): Dugc thiet ke bao gom cac khoi chiic nang (phan ciing) nhu sau: khoi cap nguon 5V, khoi xii ly tin hieu dau vao tir cac cam bien, khoi dieu khien trung tim, khoi dieu khien cac co cau chap hanh va khoi ket noi giao tiep vdi may tinh. Chi tiet thiet ke so do mach va che tao phan ciing ECU duoc trinh bay trong [ 1], [2], trong do, sir dung phan mem AltiumDesigner de thiet ke mach in. Bo mach ciia ECU sau khi che tao dugc the hien tren hinh 4.

2.4. Thiet ke lap dat cac bo phan cua he thdng Cac bd phan dugc lira chgn va che tao neu d tren dugc tinh toan, thiet ke lap dat len xe tao thanh he thong phun xang dien tir hoan chinh.tren nguyen tac trudc het thda man yeu cau hoat dong, ngoai ra, phai anh hudng it nhat den ket cau va bo tri tren xe nguyen ban.

Hinh 6: Lap dat duong thai

Hinh 5 the hien vi tri lap hong gio tren dudng nap va hinh 6 the hien vi tri lap dat dudng thai. Ngoai ra, cac bo phan khac nhu cam bien nhiet do dong co dugc lap dat tren canh la t i n nhiet d phia dudi dong co; cam bien toe do dugc lap dat vao 16 xac dinh thoi diem danh lira ciia dong co nguyen bin; van khong tai (cung cap them khong khi b che do ham nong may) duoc lap dat tren gia do canh hong gid phia sau bau loc gid; cdn ECU dugc lap dat trong khay dung cu dudi yen xe, noi tuong doi kin, han che duoc va cham, rung xoc va xa thimg nhien lieu (han che chay no khi cham chap dien) [1],

Hieu chinh theo dao dong Pn9pi dao dong B

ga, dien ap AQ Dieu chinh xung phun Hinh 5: Vi tri lap dat hong gio

Hinh 7. Thuat toan dieu khien phun a che do on dinh TAP CHI CO KHI VIET NAM V So 4 - Thing 4 nam 2011

2.5. Xay dung bp die lieu dieu khien cho ECU

Trong he thong phun xang dien tii kieu gian doan. luong xang phun trong moi chu trinh chi phu thuoc vao thoi gian mo voi phun hay do rong xung phun [3]. Do rong xung dieu khien voi phun thay doi dua tren nguyen tac su dung mach dem lap trinh timer. Khi co tin hieu xung dieu khien phun G. timer se bat dau dem va xung phun se chuyen trang thai sang mire cao de nang voi phun len. Khi gia tri dem cua timer bang gia tri dat trudc cung la luc xung phun duoc ha xuong mire thap. voi phun duoc dong lai. ket thiic qua trinh phun.

Trong khuon kho de tai, ECU duoc thiet ke dieu khien voi phun theo cac che do sau: che do khoi dong voi ^ nho, che do chuyen tiep tir khoi dong sang khong tai, che do him nong miy. che do chuyen tiep tir khong tai sang che do co tai, che do tang tdc, che dp giam toe, che dp on dinh, che dp cat nhien lieu khi dong co bi keo, che dp cat nhien lieu khi qua toe dp, che dp on dinh dieu khien vdng kin vdi I =1 khi tai trung binh va dong co da du nong.

Cac che dp nay dupe thu nghiem va toi uu tren bang thir xe may. De thay doi v i dieu chinh cac so lieu trong qua trinh thi nghiem, ECU dupe dieu khien boi may tinh qua chuong trinh truyen thong giao tiep giua may tinh va vi xu ly (VXL) dupe Met bang ngon ngu lap trinh DELPHI [1]. Giao dien cua chuong trinh se nhan du lieu tir VXL de hien thi cac thong so lam viec cua dong co nhu: toe dp, ap suat dudng nap. nhiet dp dong co, vi tri budm ga... Ngoai ra. du lieu dupe truyen tir may tinh xuong ECU de hieu chinh lupng nhien lieu phun trong qua trinh thi nghiem.

Bp du lieu co so dupe xay dung khi thu nghiem d che dp on dinh (vi tri budm ga, toe dp vong quay co dinh nhiet dp dong co > 80°C) vdi ' =1 de dat hieu qua xu ly khi thai Idn nhat. Khi thu nghiem, vi tri budm ga dupe chia thanh 12 phan deu nhau va toe dp vong quay dong co dupe chia thanh 18 khoang deu, tir 500 den 9000 vg/ph. Ket qua dupe trinh bay chi tiet trong [1]. Thuat toan dieu khien o che dp nay dupe trinh bay tren hinh 7. con thuat toan dieu khien cac che do khac dupe the hien chi tiet trong [1]. Tren co so thuat toan dieu khien, chuong trinh dieu khien cua ECU dupe lap trinh bang ngon ngu C tren phin mem Code Vision AVR.

3. T H U * N G H I E M X E D A C A I T I E N 3.1. Thu nghiem trong phdng ngh iem

Thiet bi diing trong qua trinh thu nghiem bao gom:

bang thii xe may CD20", tu phan tich khi thai CEBIT thiet bi do tieu hao nhien lieu AVL733S, he thong lay mau khi thai CVS. Xe thir sau khi da dupe chuyen doi sang su dung he thdng phun xang dien tu, dupe lap dat len bang thir CD20'" (hinh 8).

Qua trinh thi nghiem da do dac cac thong so the hien cac tinh nang kinh te ky thuat cua xe nhu: cong suat. suit tieu hao nhien lieu, kha nang gia toe, che dp khong tai va lupng phat thai cac chat thai doc hai doi chung vdi xe nguyen ban su dung bp che hda khi.

Cac thong so cua xe khi su dung hai loai he thong nhien lieu duoc so sinh thong qua viec xay dung cac dudng dac tinh ngoai o so 3 (voi dai van toe tir 20 - 45 km/h). so 4 (voi dai v an toe tir 35 - 80 km/h), che dp ting toe, che dp khong tai va do doi chung theo chu riinh thu ECE R40 cua tieu chuan khi thai chau Au. Ket qua chi tiet dupe trinh bay trong [1]. Dudi day, chi trinh bay mot so ket qua dien hinh.

Hinh 9 trinh bay ket qua thu nghiem cong suit (NJ va suit tieu thu nhien lieu ( g j cua dong co 0 dac tinh ngoai tai so 4. Cong suit cua xe khi su dung hai he thong nhien lieu khong co su chenh lech nhieu 0 \iing toe dp thip hon 60 km/h. Tuy nhien, su chenh lech nay dien ra kha ro ret b \img toe dp cao (> 60 km/h). Xet tren toan dac tinh cong suit cua xe khi su dung EFI. tang 6,1%

so vdi khi sir dung bo che hoa khi. Dieu nay the hien su uu viet cua EFI so vdi dung bp che hoa khi.

Cung tren hinh 9, the hien suit tieu thu nhien lieu tai so 4. Tai ciing mpt toe dp, suit tieu thu ciia xe khi su dung EFI thip hon khi su dung bp che hoa khi. Suit tieu thu nhien lieu cua xe khi su dung bp che hoa khi dat cue tieu. o toe dp 60 km/h. Trong khi do, suit tieu thu nhien lieu khi su dung he thong phun xang co xu hudng tang theo toe dp dong co. Xet chung tren toan dai suit tieu thu nhien lieu, khi su dung EFI thap hon 9,7% so vdi khi su dung bp che hoa khi.

Hinh 8: Thii nghiem xe tren bang thii FT1 TAP CHI CO KHI VIET NAM ••• Sd 4 - Thing 4 nam 2011

NGHIEN CUU - TRAO DOI

Hinh 9: Cong suat va suat tieu thu nhien lieu d sd 4 Phat thai CO a so 4 khi sir dung he thong phun xang thap hon rat nhieu so vdi khi sir dung bo che hoa khi, hinh 10. Xet tren toan dai, ham luong CO khi sir dung EFI giam 87,7% so vdi khi sir dung bo che hda khi.

Phat thai HC khi sir dung he thong phun xang b so 4 cao hon so vdi khi sir dung bo che hoa khi, hinh 10.

Trung binh tren toan dac tinh, ham luong HC khi sir dung EFI tang 35% so vdi khi sir dung bo che hoa khi do he so du luong khong khi cao hon [4],

Phat thai NOx d so 4 duoc minh hoa tren hinh 10 cho thay khong cd su khac biet nhieu giua hai he thong.

dung hai he thong nhien lieu nay theo chu trinh thir ECE R40. Ket qua thir nghiem duoc tong hop trong bang 1.

Tir ket qua thir nghiem cho thay, khi sir dung EFI, luong nhien lieu tieu thu giam 7,14% so vdi khi sir dung bo che hoa khi. Ve phat thai, ham luong CO giam tdi 72,89%, HC tang 56,76%, NOx tang hon 14,28 % so vdi khi sir dung bo che hoa khi. Phat thai NOx tang la do hda khi nhat hon gan vdi vung phat thai cue dai img vdi X = 1,05 - 1,1 [4].

Can phai chii y rang, khi co bo xu ly xuc tac 3 thanh phan thi phat thai doc hai se giam dang ke, mdi phat huy triet de tinh uu viet cua EFI [4].

Bang 1: Thir nghiem khi thai theo ECE R40

40000 - 35000 -

pm)

325U0U -7

5 20000 -/ -«-Cheh6akhi 3 15000 - * Phun xang

]jj 10000

* 5000 ]jj 10000

* 5000

0 35 40 45 50 55 60 65 70 75 80 Toe d$ xe (km/h) 7500 -^Chehoakhi * Phun xang 7000 •

c ¹ 1,6500 -

***••-.

U 6000 a.

EE 5500 _—. • 5000

35 40 45 50 55 60 65 70 75 Toe d§ xe (km/h)

35 40 45 50 55 60 65 70 75 80 Toe d§ xe (km/h)

Hinh 10: So sanh phat thai doc hai d s6 4 Be so sanh mpt each toan dien ve tinh kinh te va phat thai cua xe khi sir dung he thong EFI va bp che hda khi, chiing toi da tien hanh thir nghiem doi chung xe khi sir

Thanh

phan Don vi

Gia tri Thay doi (%)

Tieu chuan EUR02 Thanh

phan Don vi Che

hoa khi Phun xang

Thay doi (%)

Tieu chuan EUR02 HC [g/km] 0.74 1.16 56.76 1.2 NOx [g/km] 0.28 0.32 14.28 0.3 HC + NOx fg/km] 1.02 1.48 45.1

CO [g/km] 7.82 2.12 -72.89 5.5 C02 [g/km] 30.04 31.238 4.12 Tieu thu nl [1/100 km] 1.96 1.82 -7.14

116OIU1U,»VVV.. V —O • ~

dp khong tai on dinh (may nong, nhiet do > 80°C). Ham lupng CO b che dp nay giam dang ke (35%) doi voi ddng co EFI, dat 8489 ppm so voi 13076 ppm vdi bp che hda khi [ 1]. Day la mpt uu viet cua xe sir dung EFI khi chiu kiem soat khi thai xe dang luu hanh theo Quyet dmh 249/2005/QD -TTg.

Q che dp ting toe va ham nong may, ket qua nhan dupe ciing rat kha quan [1]. He thong EFI co thoi gian ham nong may ng§n hon (2 phut 48 giay so vdi 4 phut 15 giay khi sir dung bp che hoa khi). Thoi gian tang tdc trung binh tir 0 den 70 km/h b he thong EFI giam 28%, chi mat 25,770 giay so vdi 35,859 giay b bp che hoa khi.

Dieu nay la do cdng suat cua dong co duoc cai thien va sue can dudng nap giam khi dung he thong EFI.

3.2. Thu-nghiem tren dudng

Nham muc dich kiem tra tinh nang van hanh cua xe trong dieu kien van hanh thuc te, chiing toi da dua xe ra thii nghiem chay xe thuc te tren dudng [ 1]. Qua trinh kiem tra duoc thuc hien b cac che do nhu: khdi dong, khong tai, chay on dinh a toe do thap, toe do cao, cac qua trinh ting toe, giam toe, cac qua trinh chuyen so.

Ket qua thir nghiem cho thay, xe khoi dong kha de dang bang ca de va dap no. Thoi gian chuyen tiep tir khong tai nhanh sang khong tai 6n dinh kha nhanh va 6n dinh. Toe dp khong t i i chuan dupe giu ngang bang vdi toe dp khong t i i cua xe nguyen ban.

He thong hoat dong tot trong cac che dp chuyen' TAP CHI CO KHI VIET NAM So 4 - Thing 4 nam 2011 EEE

tiep nhu tang toe. giam toe va chuyen so, khong co cam giac thieu nhien lieu khi tang toe dot ngpt.

0 che do on dinh he thong van dam bao hoat dong on dinh ngay ca o toe do cao. Tuy nhien o tdc do va tai thap thi gia toe cua xe khong cao nhu khi diing bp che hoa khi.

4. KET LUAN VA HI ()\(. PHAT TRIEN

Voi nhung ket qua da trinh bay o tren, co the nit ra mpt so ket luan sau:

- Be giam tieu thu nhien lieu cung nhu giam thieu 6 nhiem moi trudng thi viec chuyen doi tir he thdng nhien lieu diing bp che hoa khi sang EFI tren xe may la can thiet.

- Ba tinh toan thiet ke, che tao va lap dat dupe he thong EFI cho xe Honda SuperDream vdi ket cau nho gon, dam bao khong anh huong tdi tinh cac tinh nang van hanh cua xe va tan dung toi da cac thiet bi hien co cua xe, giam chi phi che tao, chuyen ddi.

- Thu nghiem chung cho thay, cong suat tang khoang tir 5-K>% theo dac tinh ngoai o so 3 va so 4, [1]. Suat tieu hao nhien lieu ciing giam duoc 7,41% khi thu nghiem theo chu trinh ECE R40. Ngoai ra, con cai thien duoc phat thai doc hai, dac biet la giam dang ke (72,89%) CO trong khi thai.

Day la nhung ket qua budc dau kha kha quan. Tuy nhien, do thoi gian va kinh phi thuc hien bi han che cho nen ket qua dat duoc van cdn mpt so han che nhu may khong boc o tai va toe dp nho va HC trong khi thai kha cao so vdi khi su dung bp che hoa khi.

De cd the ap dung ket qua nghien cuu vao thuc te, can phai tiep tuc nghien ciru hoan thien he thong. Cu the nhu sau:

- Tiep tuc cac thi nghiem de xac dinh cac he sd dieu chmh lupng nhien lieu phun theo cac che dp lam viec de tir do cd the cai thien dupe cac chi tieu kinh te, ky thuat va khi thai cua dong co tot hon nua.

- Can phai lap dat bp xiic tac khi thai 3 thanh phan de cd the toi uu hoa viec dieu khien lupng phun nhien lieu theo che dp phan hoi vong kin nham giam thieu toi da phat thai doe hai. •

Tai lieu tham khao:

[ 1 ] Pham Minh Tuan, Nguyen DUY Tien, Le Anh Tuan, Nguyen The True (2011) Bao cao kit thiic di tai cdp Bp B2009-01-288.

[2] Le Dang Dong (2010) Tinh toan, thiet ke he thdng hi phun xang dien tren xe may, Luan van Thac sy Dai hoc Bach khoa Ha Noi, 10/2010.

[3] Do Van Dung (2004), Trang bi dien & dien tu tren oto hien dai, NXB Dai hoc Quoc gia, TP.H6 Chi Minh.

[4] Pham Minh Tuan (2009), Khi thai dong ca va 6 nhiem mdi trudng, NXB Khoa hoc va Ky thuat.

(Tiep theo trang 16) . Cac he thong da hoat dong on dinh, phuc \ri tot nhu cau img dung cong nghe CAD/CAM/CNC cua cac co so.

KET LUAN

Nghien cuu ket noi va tich hpp mpt so loai may NC va CNC vdi may tinh da dupe tac gia thuc hien tren nhieu loai may gia cong vdi cac he dieu khien khac nhau. Ket qua cua nghien cuu da xay dung duoc mo hinh ket noi va dieu khien true tiep DNC, da thuc hien bien doi cac tin hieu vi dieu khien va lap trinh cac tham so truyen thong cua nhieu he dieu khien khac nhau, tu do da nang cao duoc kha nang cong nghe cua may trong dieu khien va gia cong cac bien dang va be mat phuc tap. Vdi giai phap nay, co the tich hpp dupe toi da la 256 may gia cong (trong do co nhieu he dieu khien khac nhau) vdi phong thiet ke va quan Ly theo he thong DNC/LAN tir may chii Server.

Day la co so quan trpng cho cac nghien cuu tiep theo de xay dung thanh he thong san xuat linh hoat (FMS) hay san xuat tich hop (CEVI), hoac xay dung chuong ttinh quan ly thiet ke (PDM) va quan tri danh nghiep (ERP).

Ket qua nghien cuu nay cd the trien khai ung dung rang rai trong cac nha may co khi hoac trong cac truong dai hpc va cao dang ve ky thuat o Viet Nam. •

T a i l i e u t h a m k h a o :

1. Lntergreter machine center VMC-85S with the CAD/CAM system- Application of CAD/CAM/CNC in training and technology transfer at Thai Nguyen University of technology; Duong Xuan Truong; Tran Minh Due, Do The Vinh, Hoang Minh Phuc;

Scientific journals - Thai Nguyen University, 2009.

2. Integrated CAD/CAM/ERP; Topsolid, Misler 2010.

3. Enterprise Resource Planning - Integration withAutomation System; FORTU TOM, Helsinki University of technology, Depamient of Automation and System technology.

4. Integration of CAD/CAM/PDM/MES and ERP Systems;

K. S. Kul'ga and R. R. Gtlfanov - ISSN 1068-798X, Russian Engineering Research, 2008, Vol 28, No. 2, pp. 169—172.

5. Manufacturing Resource Planning with Introduction to ERP, CSM and CRM; Singapore, McGraw- Hill International Editions - Khaltd Sheikh 2002.

6. General Operation's manual for Machining Center, Fanuc 2009.

7. Enhanced Modular Controller communication with Mitsubishi Q PLC overRS232; User's Manual Mitsubishi.

8. User's Manual GSK980TD, GSK CNC Equipment Co.. Ltd.

9. DNC Max Server and CTMCO Edit V5 User Guide;

CTMCO Integration - June 27, 2005.

10. Serial Por Complete ftograrrnning and Circuits for RS C232 and RS 485; Jan Axelson Links and Networks.

11. User's Manual SMUMERLK 802D, 840Di Turning, milling; Siemens System controller 2005.

12.User's Manual User's Manual HETOENHAIN C onversational.

ET1 TAP CHI CO KHI VIET NAM ••• Sd 4 - Thang 4 nam 2011