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NGHIEN cflu-TRAOD6I KHfiO S(iT flNM HCrdNG CUfI CflC TMONG SO PEN LCTC Lfll KHI LfiP TRO LCrc Lfll BflNG DIEN TCT TREN TO KHbNG Cb TR^f LCTC Lfll TS Nguyen Khac Hudn', Tli.S Nguyin Anh Tuan\ Ih.S Nguyin Hai Hd' 'Trfldng Sy quan Cdng binh, ^Trfldng Cao dang Ky thuat Ly Tfl Trpng l.DATVANDE Otd dupc sfl dung d tdc dp cao, van dc an todn chuyen dpng cang dfldc ede nha khoa hpc cdng nghe cua cac trung tam khoa hpc tai cac nfldc cd nganh cdng nghiep dtd hodn ehinh nhfl My, Tdy Au va Nhat Ban dau tfl nghien cflu, cd h? thdng ldi He thdng lai trp lflc bang dien tfl cd nhieu flu diem so vdi cae he thdng trp lflc ldi khac nhfl: + Tilt kiem dflpc khoang 10% nang lfldng tieu thu + Giam d nhiem mdi trfldng + Thay ddi moment trp lflc theo tdc dp eua ddng ed Bai bao gidi thieu mdt sd kit qua xac dinh anh hfldng cua tai trpng vd ede gdc ddt banh xe den lflc lai lap trp lai bang dien tfl tren md hinh he thdng lai khdng cd trp lflc ldi eua xe to TOYOTA VIOS - 1.5 (2009) bang thflc nghiem Nham Idem nghiem cac lai flu dilm da nlu cua he thdng THIET KE MO HINH He thdng trp lflc ldi dflpc lap dat dfla tren md hinh he thdng ldi eua xe Vios-1.5, vdi cdc ed cau dilu chinh he thdng lai nhfl dp chum, gdc camber, caster, kingpin (hinh 1) a) b) Hinh 1: Mo hinh he thdng lai cua xe Vios-1.5 va cd cau dieu chinh cac gdc cua he thdng lai a) Mo hinh he thong ldi; b) Cdc cO cdu dieu chinh cdc gdc cua he thong ldi TAP CHf CO KHf VlfiT NAM •t* Sd 03 (Thang nam 2012) NGHIEN cufu - TRAO D6\ He thdng trp lflc ldi bao gdm motor trd lflc lai ed moment xoan 60N.m, cam biln moment ldi dl nhdn bilt moment ddnh ldi flng vdi tflng ehl dp lam vile cua d td, hop ECM dilu khien ddng Cd, Hop EPS dilu khiln he thdng ldi, cam bien tde dp ddng ed Ne, vi tri mdy G, tdc dd xe SPD dn dinh Mflc chat tai thay ddi tflng 7000 N THUC NGHlfiM XAC DINH A N H H U N G CUA TAI TRONG VA CAC GOC DAT BANH XE DEN L U C LAI 3.1 Dat tai Hinh 3: Thi nghi|m m6 men lai Tdi trpng eho he thdng thi nghilm dflpc ddt trln gid tdi trpng cua md hinh tang dan tfl 40 kg - 80 kg - 120 kg nhfl (binh 2) - Di dat dflpc kit qud chuan dinh ehinh xic, qud trinh ndy dflpc thflc hiln lap lai lan vd lay kit qua trung binh (bdng 1) Do vd chuan dinh cdc gdc ddt bdnh xe: Sfl dung thflde met, thflde gdc vd Livd bpt nfldc - Sau chuan dinh xong, thiet bi md men san sang eho thi nghiem Cdc thi nghilm dfldc trinh bay phan 3.3 Bang 1: Gia trich uan dinh thiet bi md men lai \ Phq) Lanl Ml Hien thi (Njn) STT 10 11 12 Hmh 2: Qua trinh thfl tai he thdng lai 3.2 Chuan dinh thiet bi mo men lai Lan Ml Him thi (Njn) Iin3 Ml (Nin) Hien thi \ 10 20 30 40 50 60 70 80 90 100 110 120 0098 0021 0028 0042 0050 0058 0067 0080 0910 1101 1201 10 20 30 40 50 60 70 80 90 100 110 120 0010 0018 0029 0039 0051 0060 0070 0080 0897 1100 1197 10 20 30 40 50 60 70 80 90 100 110 120 0013 0019 0032 0040 0050 0062 0072 0082 0902 1098 1203 Gia tri hien thi trung binh xlO-2 10 20 30 40 50 60 70 80 90 100 110 120 3.3 Cac thflc nghilm 3.3.1 Xdc dinh md men ldi thay doi tdi trgng vdi cdc mitc tdi khdc Trong thi nghiem, dat cdc gid tri gdc dat bdnh xe, dp suat ldp vd tiln hdnh md men Dilu kiln: TOE-IN = 0.5±0.5mm; CAMtrln vdnh lai vdi ede mflc chat tai khde BER = 00±45'; CASTOR=1024'±45'; Kich cd ldp: chfla ed trd lflc va ed trd lflc (hinh3) Kit qua dpc 195/70; Ap suat ldp: 3.5 kg/cm^; Nln xi mang trln hiln thi sd dfldc tinh ddnh ldi dn dinh (bl tdng) Kit qua thi nghilm dflpc thi hien tren c^ (ddnh ldi diu) vd gid tri hiln thi eung tfldng ddi hinh TAP CHf CO KHf VlfiT NAM • Sd 03 (Thang nam 2012) NGHIEN ClirU - TRAO D0\ STT 01 02 03 04 05 06 07 08 09 ML ML (Nm) ML CO trgr (Nm) Ivc Khfing tr^rlyt: V*i V»rt=0 (km/h) 22,4 53.19 22.52 55.31 5957 22.6 23 64.86 23.15 71.26 23.3 79.78 25.5 98.9 109.13 26.52 120.86 28.37 Mire chiit tii (kg) 105 175 245 315 385 455 595 665 735 Thay (lot t i l IrfiiB vAI cic mi^c lal khiic (Nm) c6 trgr 140 }lfC V*i v»,»=«o (km/h) 2464 22.38 23.39 2442 2543 27 46 31.53 33.57 356 -*-S«rlef1 -^S«l«l3 i^iiiliSM^ 200 400 600 800 Muc chai lal (a) (b) Hinh 4: Mdi quan h | gifla md men ldi vdi tdi trpng khdng cd vd cd trp lflc di|n tfl a) Kit qud do; b) Dd thj 3.3.2 Xdc dinh momen ldi thay ddi gdc CAMBER vd tdi trgng c6 vd khdng cd trd Itic diin Dilu kien: Gifl nguyen gdc CASTOR vd TOE-IN nhU d thi nghi|m (3.3.1), chi thay ddi gdc CAMBER tang len (camber dUong) va gidm di (camber am) vd thay ddi tdi Kit qud thi nghiem dUpc the hien tren hinh Goe CAAIBER tang ISn (+) Nt(Nm N t ( N m ) (c6 trgr Muc ) chat (khong luc.V=0 tai CO tro km/li) (kg) luc) 46.8 105 20.05 175 23.3 55.31 245 25.7 63.82 72.33 315 26 80.84 385 26.5 87.35 455 27.15 93.61 525 28 595 29.1 102.12 110.63 665 30.15 735 119.14 31.2 Gdc CAMBER ML(Nm) (khong Muc CO trg chit luc) tii (kg) 105 72.33 175 76.59 245 80.84 315 87.35 93.61 385 97.86 455 525 102.12 595 109.63 665 115.88 735 127.65 l^(Nm),(c6 trgr luc;V = 60kni.li 22.05 25.83 28.27 28.6 29.15 29.86 30.8 32.01 33.16 34.32 gum di (-) ML(Nm) (c6 tro (Nm) luc,V6t6=0 (c6 tro lon/h) luc V6t6=60 km/h) 27.05 29.75 27.5 30.25 28.1 30.91 29.3 32J23 32.25 35.47 35.15 38.67 38 41.8 41.2 45.32 45.15 49.66 53.02 48.2 a) \ i c A n h n o u m lal k h i ihav o l eoc C'AMBKK \ a t i l Irong kbi u U n K c o \ j CO t r o h i r i l l n i \ i r diali ã ằ ã ô ô lai k h i thay « i c ^ < ' V M B E R v a l a l tr^MC k M U M n g cn v i c o l n p kpc l f a I40 lio too so »S«>Mnt 60 40 37 O 200 400 ô00 ã00 -SôrMtS iO t-f#'-t^#^^!t4^ fT* i 200 Mucch4tUl 400 600 8O0 MifccltAitAl b) Hinh 5: Mdi quan he gifla md men ldi vdi gdc CAMBER vd tdi trpng a) Kit qud do; b) Dd thi TAP CHf CO KHf VlfiT NAM • S6 03 (Thang nam 2012) NGHIEN cufu - TRAO D I 3.3.3 Xac dinh mdmen lai thay doi tai va thay doi dd chum banh xe dan hfldng cd va khong co trof lflc ddi tai trpng chat len gid chat tdi, rdi thflc hiln cac thao tdc nhfl d cdc thi nghiem tren Kit qua thi nghiem dflpc the hien trln hinh GiQ nguyen gdc CAMBER vd gdc CASTOR, thay ddi dp chum tang lln (dp chum dflpng) va giam di (dp chum am), ddng thdi thay Dieu kiln: CAMBER= 0° ±45; CASTOR = 1»24' ±45'; Kich cd ldp: 195/70; Ap sudt ldp: 3.5 kg/cm^; Nln xi mang (be tdng): G6c Toe-in tang len (4-) Muc chat Ikt(Nm) ML Ididng CO (Nm) tai tro luc (co Ocg) tro luc Voto =0 km/1i) 105 54.57 22.66 175 56.75 23.19 23.27 61.12 245 315 66.55 23.69 73.16 385 23.84 81.89 23.99 455 24.72 90.97 525 101.48 595 26.26 111.98 27.31 665 124.01 29.22 735 Nt(Nm) (c6 tro V6t6=60 km.li) Goe Toe-in giam di (-) Mac ML(Nm) ML(Nm) ML(Nm) chit khong CO (co trg luc (co trg trg luc V6t6=^ luc tai km/li) V6t6=60 (kg) km/h) 105 51.8 21.56 23.71 53.87 175 22.06 24.27 58.01 245 22.15 24.36 63.17 315 22.54 24.79 69.44 385 22.68 24.95 77.72 22.83 455 25.11 23.52 525 86.35 25.87 96.32 24.99 595 27.48 25.98 106.28 665 28.58 27.8 117.71 735 30.58 luc 24.92 25.51 25.6 26.06 26.22 26.39 27.19 28.89 30.04 32.14 a) Tb3> 4nl tai IreaK va ltia> doi 4I9 chum banli x r tftan ImoTiK M i l co va U t o n c co I r ? T h a v doi l a i trpii|> \ u Ihay doi c h u m banh w dan im ong Mii co \ ;i khong c6 irorktc M i 140 140 120 120 100 100 80 J i -Senml 60 -VcTKrt2 40 20 80 60 -Scricil 40 -ScriCii 20 ãScnc%3 O 200 ôao COO 200 ROO 40O 600 800 Muc chat r j i M w c chat l;>l b) Hinh 6: Mdi quan he gifla mdmen lai vdi tai trpng va gdc Toe-in a) Kit qua do; b) Do thi TAP CHf CO KHf VIET NAM fTta i •t* Sd 03 (Thang nam 2012) NGHIEN cufu - TRAO DOI 3.3.4 Xdc dinh mdmen ldi thay ddi tdi trgng vd tdc dd dtd khdc Dilu kiln: TOE-IN = 0,5 ± 0,5 mm, CAMBER = 00 ± 45'; CASTOR = 1"24'± 45' Kit qua thi nghiem ddpc thi hi|n trln hinh M, r Mik chat tai (kg) ML (Sm) CO (Nm) ! luc Khong Noi troltfc llu (kill ll 10.^ 53 184 27 08 71 26 23 15 4.^^ "'9^8 '•} NjS 88 66 -'4 595 98 66"" 109 1' kbacBkJi I'' ,4 ; ; i ; , i- ;.tf4_4_;-4-f-f.; - \\-.r=40 V,»=80 (kmh) (kmh) 2.'0' 26 23 19 26 34 2>69 -'S::^ \ j< JMli imnwii bl llut 4*1 nt met n IK 2'-J.22 33.19 -^^-^x^^ '^, T~"""' ' * 1.^ M ^ - ' - ^ - r - ^ - t - f - ^ - t ^JT' • : • • r l -*-^nlf ãftti-riiix: : 60 Sôie3 Soir4 4.- - ! i L i i r :y83 • - ' >
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