Chuong3 Cac He Thong Phu

7/29/2019 Chuong3 Cac He Thong Phu

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He thong ien than xe & ieu khien t ong tren Oto Trang 66

CHNG 3: CAC HE THONG PHU

3.1. HE THONG LAU RA KNH3.1.1. Gii thieu chung

Tren oto thng dung cac kieu he thong gat nc va ra knh (hoac oi khi raen pha).

a. Gat nc:He thong gat nc thng co nhng che o lam viec nh sau:

- Gat nc mot toc o.- Gat nc hai toc o.- Gat nc gian oan (INT).- Gat nc gian oan co hieu chnh thi gian dng.- Gat nc ket hp vi ra knh.

b. Ra knh:- Motor ra knh trc va ra knh sau rieng re.- Ra knh trc va ra knh sau dung chung mot motor.

3.1.2. Cac bo phanHe thong gat nc va ra knh bao gom cac bo phan sau:3.1.2.1. Motor gat nc

Hnh 3.1 Cau tao motor gat nc

Phanng

Choi thanchung

Choi than toc ocao

Choi than toc o thap

a cam

Nam cham Ferit

Tiep iem

Nam cham

Truc vt


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ong c ien vi mach kch t bang nam cham vnh cu c dung cho cac motorgat nc. Motor gat nc bao gom mot motor va c cau truc vt banh vt e giamtoc o cua motor. Cong tac dng t ong c gan tren banh vt e can gat ncdng tai mot v tr cuoi khi tat cong tac gat nc bat ky thi iem nao, nham

tranh gii han tam nhn tai xe.Mot motor gat nc thng s dung ba choi than: Choi toc o thap, choi toc o caova choi dung chung (e noi mass hoac noi dng).

a. Cong tac dng t ong

Hnh 3.2: Cong tac ieu khien dng t ong loai mass ch (tren) va dng ch(di)

Cong tac dng t ong bao gom mot a ong co khoet ranh va ba tiep iem. v tr OFF cua cong tac gat nc, tiep iem gia c noi vi choi than toco thap cua motor gat nc qua cong tac. Nh vay, mac du ngat cong tac,motor se tiep tuc quay en iem dng nh ng dan thong qua tiep iem ttren la ong. iem dng, hai au choi than cua motor c noi vi nhau taora mach ham ien ong, ngan khong cho motor tiep tuc quay do quan tnh.

Cong tac v tr dng

Congtac gatnc (tat)

Mot gatnc Cong

tac may


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b. Toc o motor

Motor gat nc la loai motor ien mot chieu kch t bang nam cham vnh cuco 2 toc o hoat ong LOW (thap) va HIGH (cao) nh cach au day trong

rotor. V vay motor co 3 choi than: mot choi than chung, choi than toc o thapva choi than toc o cao.

3.1.2.2. Relay gat nc gian oanRelay nay co tac dung lam gat nc hoat ong gian oan. Ngay nay, kieurelay gan trong cong tac gat nc c s dung rong rai. Mot relay nho vamot mach ien t bao gom transitor, cac tu ien va ien tr c ket hptrong relay gian oan. Thc chat no la mot mach nh thi. Dong ien chay

qua motor gat nc c ieu khien bi relay tng ng vi tn hieu t congtac gat nc lam motor gat nc quay gian oan.

mot vai kieu xe, thi gian gian oan co the ieu chnh c.

3.1.3. Hoat ong3.1.3.1. Cong tac gat nc v tr LOW/MIST

Hnh 3.3: S o mach ien khi cong tac gat nc v tr LOW/MIST

Khi cong tac v tr LOW hay MIST, dong ien chay en choi toc o thapcua mo t gat nc nh s o di va gat nt hoat ong toc o thap.


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Accu + chan18 tiep iem LOW/MIST cong tac gat nc chan 7 motor gat nc (LO) mass.

3.1.3.2. Cong tac gat nc v tr HIGHKhi cong tac gat nc v tr HIGH, dong ien ti choi toc o cao cua motor

(HI) nh s o di va motor quay toc o cao.

Accu + chan18 tiep iem HIGH cua cong tac gat nc chan 13 motor gat nc (HIGH) mass.

Hnh 3.4: S o mach ien khi cong tac gat nc v tr HIGH

3.1.3.3. Cong tac gat nc v tr OFF

Neu tat cong tac gat nc trong khi motor gat nc ang quay, dong ien sechay en choi toc o thap cua motor gat nc qua cong tac nh hnh 3.5 vagat nc tiep tuc hoat ong toc o thap.

Accu + tiep iem B cong tac cam cc 4 tiep iem relay cac tiepiem OFF cong tac gat nc cc 7 motor gat nc (LOW) mass.

Khi gat nc en v tr dng, tiep iem cong tac cam quay t pha B sang phaA va motor dng lai.


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Hnh 3.5: S o mach ien khi cong tac gat nc v tr OFF

3.1.3.4. Cong tac gat nc tai v tr INT (V tr gian oan)Khi cong tac gat nc dch en v tr INT, Tr1 bat trong mot thi gian nganlam tiep iem relay chuyen t A sang B: Accu + chan18 cuon relayTr1 chan 16mass. Khi cac tiep iem relay ong tai B, dong ien chay

en motor (LO) va motor bat au quay toc o thap: Accu + chan18 tiep iem B relay cac tiep iem INT cua cong tac gat nc chan 7 motor gat nc LO mass.

Hnh 3.6: S o mach ien khi cong tac gat nc v tr INT


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Tr1 nhanh chong tat, lam tiep iem cua relay lai quay ngc t B ve A. Tuynhien, mot khi motor bat au quay tiep iem cua cong tac cam bat t v tr Asang v tr B nen dong ien tiep tuc chay qua choi toc o thap cua motor vagat nc hoat ong toc o thap: Accu + tiep iem B cong tac cam

chan so 4 tiep iem A relay chan 7 motor gat nc LO mass. Khigat nc en v tr dng tiep iem cua cong tac cam lai gat t B ve A lamdng motor. Mot thi gian xac nh sau khi gat nc dng Tr1 lai bat trongthi gian ngan, lam gat nc lap lai hoat ong cua no.

Hnh 3.7: S o mach ien khi cong tac gat nc v tr INT.

3.1.3.5. Cong tat ra knh bat ON:

Hnh 3.8: S o mach ien khi cong tac gat nc v tr ON


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Khi cong tat ra knh bat ON, dong ien chay en motor ra knh: Accu + motor ra knh chan so 8 tiep iem cong tac ra knh chan 16 mass.

Trong trng hp gat nc noi vi ra knh, Tr1 bat trong thi gian xac nhkhi motor ra knh hoat ong lam gat nc hoat ong, toc o thap mot hoachai lan. Thi gian Tr1 bat la thi gian nap ien cho tu trong mach transistor.Thi gian nap lai ien cho tu phu thuoc vao thi gian bat cong tac ra knh.

Cac s o mach ien tren mot so xeS o mach ien gat va phun nc TOYOTA CAMRY

Hnh 3.9: S o mach ien gat va phun nc TOYOTA CAMRY

b. Nguyen ly hoat ongThng th tiep iem (1) va (2) noi nhau. Khi co dong ien chay qua cuon

day relay, tiep iem (1) t (2) noi sang (3).* che o INT: Chan C c noi mass qua cong tac, do o, co dong t (+)

IG B R1 nap tu C1 (2) Sm mass. Khi tu C1 nap no, co dongqua R1, R2, R3, phan cc thuan T1, lam cho T1 dan co dong ien qua cuon day,lam cho vt (1) bo (2) noi (3) cung cap dong t: (+) (3) Ss S (+1) (+1) motor mass mo t quay, luc nay tu phong. Khi mo t quay en iemdng, Sm noi mass, tu lai nap, T1 khoa, mo t ngng hoat ong. Khi tu nap no,motor lai quay va qua trnh lap lai.

* Che o High:Dng (+) t bnh accu IG cau ch B (+2) choi than toc cao o

(HI)

mass mo t quay nhanh

can gat lam viec che o nhanh.* Che o Low:


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Dng (+) t accu IG cau ch B (+1) choi than (LO) motor mass mo t quay can gat hoat ong che o cham.

* Mist:Dng (+) t accu IG cau ch B (+2) choi than (HI) mo t

quay can gat hoat ong che o nhanh.* Che o Washer:

Dng (+) IG cau ch mo t phun nc W E mass mot phun nc hoat ong.

* Che o Off:Motor van c tiep tuc hoat ong khi en iem dng, Sm bo mass noi (+)

mo t ngng hoat ong.S o mach ien gat va phun nc NISSAN BLUE BIRD

a.S o mach ien

Hnh 3.10: S o mach ien gat va phun nc cua xe NISSAN BLUEBIRD

* Int:Luc nay cum ien t (intermittent relay) se noi mass. Gia s T1 dan trc,

cho dong qua chan C. T1 va T2 la 2 transitor hoan toan giong nhau, nhng do sai soche tao nen mot transistor dan sm hn. Gia s T1 dan trc, dong chay nh sau:

IBT1 : (+) C1 CT2 R2 massICT1 : (+) T1 R1mass.

ien ap (+) at vao chan BV2 lam T2 khoa V3 dan cho dong qua cuonday, lam (1) noi (3), mo t quay. Khi tu C1 nap no, T1 khoa. C2 lai c nap khienT2 dan, T3 khoa, mo t ngng hoat ong.


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* Washer: Khi bat sang v tr WASHER, chan W c noi mass mo tphun nc hoat ong, ong thi T3 dan mo t gat nc quay toc o (LOW).

* Low: Dng t bnh accu IG B (+1) choi than (LOW) mass mo t quay toc o thap.

* High: Dng t accu IG B (+2) choi than (HI) mass mo tquay toc o cao.* Off: Mo t tiep tuc quay en iem dng, Sm bo mass noi (+) ham ien

ong mo t ngng hoat ong.

S o mach ien gat va phun nc cua xe TOYOTA PREVIAa. S o mach ien

Hnh 3.12: S o mach ien gat va phun nc cua xe TOYOTA PREVIA

b.Nguyen ly hoat ong- toc o LOW hoac HIGH, nguon se cung cap cho choi than (+1) hoac (+2)- v tr OFF, do vt (1) noi (3) va Sm noi (+), nen mo t van quay en v tr

dng, Sm noi mass nen co hien tng ham ien ong motor ngng quay.


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- v tr INT, luc nay chan C c noi mass qua cong tac, tu C3 c nap:Ig/Sw R6 C3 Sm mass. Khi tu nap no, co dong qua R7 ve mass, dongnay phan cc thuan cho T3, lam cho T3 dan co dong qua cuon day vt (3) noi(2) cung cap dong cho motor. Luc nay chan Sm noi (+) nen tu C3 phong qua T3

ve am tu. Khi en iem dng, Sm noi mass, C 3 lai c nap, T3 lai dan mo tlai quay

- Khi ra knh, chan W c noi mass, nen co dong qua R 2, phan cc thuan T1 T1 dan, T2 dan, cho dong qua cuon day, neu motor gat nc ang v tr OFFth no se hoat ong toc o LOW: (+) Ig/Sm coc 2 coc 3 Ss S (+1) (+1) motor mass.

S o mach ien TOYOTA CRESSIDAa.S o mach ien gat va phun nc knh trc TOYOTA CRESSIDA

Hnh 3.13: S o mach ien gat va phun nc knh trcxe TOYOTA CRESSIDA

Nguyen ly hoat ong:

LOW

+2 +1 S B EWC1 W

OFFINT

HI

WASHER

Ignition Main Relay4 3

12

2

1

3

6

5

5

4

+2

+1M

S B

Wiper Motor

S1

S2

(LO) (LB) (LW) (L) (WB)

Wiper Control Relay

Wiper & Washer Switch(L)

(L)

(LY)

M

Wiper Fuse

IGN Fuse

Ignition Switch

FusibleLink

Battery

* S1 S2 is connected to standard wiper( ) . . . . Wire Color

(L)

(LW)

(LW)

(LR)

(LY)

(WB)


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Khi bat cong tac may (IG): dong (+) IG cau ch cong tac may (IGN fuse) cuon day mass relay ong.

- Low:Dng (+)cau ch (fusible link) R le chnh cong tac may (Ignition Main

relay) cau ch gat nc (Wiper fuse) (B) (+1) choi than (+1) cong tacgii han dong mass motor quay can gat hoat ong che o thap (LOW).

-High :Dng (+) (fusible link) r le chnh cong tac may (Ignition Main

Relay) (B) (+2) choi than (+2) cong tac gii han dong (Circuit breaker) mass mo t quay can gat hoat ong nhanh (HIGH).

-Int: Chan (6) noi mass cung cap nguon cho mach (Intermittent) hoat ongluc o:(+) r le chnh cong tac may cau ch Wiper B chan (3) khi o (1)noi (3). Do o, (+) (3) (1) S1 S (+1) mo t mass mo t quay

che o cham.Khi quay en iem dng, S bo mass noi (+)Mo t tam ngng hoat ong.- Off: (Giong nh mach tren ).- Washer: W noi EW mo t phun nc lam viec. Luc nay chan 4 cua Wiper

Control relay cung c noi mass cung cap dong t chan (3) (1) S (+1)mo t mass mo t quay toc o LOW.

b. S o mach ien gat va phun nc cua TOYOTA CRESSIDA knh sau(Rear Wiper and Washer)

Hnh 3.14 : S o mach ien gat va phun nc knh sau xe TOYOTA CRESSIDA

CRIUSE CONT.LRR. WIP Fuse

IgnitionSwitch

FusibleLink

Batttery

RearWiperMotor

(BY) (LR) (LW)(LY)

(WB) (WB)

B S +1

M

RearWiper &WasherSwitch

RearWindow &WasherMotor

(WR)

( ). Wire Color

OFF

ON

B S E W+1


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Nguyen ly hoat ong+ On:Dng t accu Fusible link IG cau ch Wiper B (+1) mo t

mass mo t quay. Luc nay can gat hoat ong. ong thi motor cung phun

nc.+ Off :Mo t tiep tuc quay en iem dng, S bo mass noi (+) ham ien ong

mo t ngng hoat ong.

3.2. HE THONG KHOA CA:3.2.1. Cong dung va cac chc nang cua he thong khoa ca:

a. Cong dung:

He thong khoa ca bang ien (Power Door Locks) am bao an toan va thuanli cho ngi s dung xe khi khoa ca.

b. Cac chc nang:

He thong khoa va m tat ca cac ca khi cac cong tac khoa ca hoat ong.

- Viec m va khoa c ieu khien bang Cong tac ieu khien khoa ca- Chc nang khoa va m bang cha.- Chc nang m hai bc.

Trong chc nang m bang cha co hoat ong m mot bc, ch ca co camcha mi m c. Hoat ong m hai bc lam cac ca khac cung c m.

- Chc nang chong quen cha trong xe (khong khoa ca c bang ieu khient xa trong khi van co cha cam trong o khoa ien).

- Chc nang an toan (khi rut cha ra khoi o khoa ien va ca c khoa hoacdung cha hoac dung ieu khien t xa, khong the m c ca bang cong tacieu khien khoa ca).

- Chc nang ieu khien ca so ien sau khi a tat khoa ien (sau khi ca ngilai va ca hanh khach ong va khoa ien tat, ca so ien van co the hoatong them trong khoang 60 giay na).

He thong khoa ca s dung hoac nam cham ien hoac motor lam c cau chaphanh. Ngay nay c cau chap hanh kieu motor c s dung pho bien nhat.


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3.2.2. Cau tao cac bo phanHe thong khoa ca bao gom cac chi tiet sau ay:

Hnh 3.15: Cac chi tiet tren he thong khoa ca.

3.2.2.1. Cong tac ieu khien khoa ca

Hnh 3.16: Cong tac ieu khien khoa ca.

Cong tac ieu khien khoa ca cho phep khoa va m tat ca cac ca ong thich mot lan an. Nhn chung, cong tac ieu khien khoa ca c gan tam optrong ca pha ngi lai, nhng mot so kieu xe, th trng, no cung cgan tam op trong ca pha hanh khach.

Cong tac ieu khienkhoa ca trai Cong tac m khoa

Cong tac ieu khien khoa caphai

Cum khoa ca

Relay ieu khien khoa ca

Cong tac en ca


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3.2.2.2. Motor khoa ca

Hnh 3.17: Motor khoa ca.

Motor khoa ca la c cau chap hanh e khoa ca. Motor khoa ca hoat ong,chuyen ong quay c truyen qua banh rang chu ong, banh rang longkhong, truc vt en banh rang khoa, lam ca khoa hay m. Sau khi khoa haym ca xong, banh rang khoa c lo xo hoi v a ve v tr trung gian. Viecnay ngan khong cho motor hoat ong khi s dung num khoa ca va cai thiencam giac ieu khien.

oi chieu dong ien en motor lam oi chieu quay cua motor. No lam motorkhoa hay m ca.

3.2.2.3. Cong tac ieu khien chaCong tac ieu khien cha c gan ben trong cum khoa ca.

No gi tn hieu khoa en relay ieu khien khoa ca, khi o khoa c ieukhien t ben ngoai.

3.2.2.4. Cong tac v tr khoa ca

Hnh 3.18: Cong tac v tr khoa ca


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Cong tac v tr khoa ca c gan ben trong v tr khoa ca.

Cong tac nay phat hien trang thai khoa ca. Cong tac v tr bao gom mot tamtiep iem va e cong tac. Khi banh rang khoa pha m, cong tac bat.

3.2.2.5. Cong tac bao khong cam cha khoa vao cong tac may

Hnh 3.19: Cong tac bao khong cam cha.

Cong tac nay gan gia tren truc lai chnh. No phat hien cha a c camvao o khoa ien hay cha. No bat khi cha ang cam va tat khi rut cha.

3.2.2.6. Cong tac ca:

Chc nang: Chong quen cha, an toan va ieu khien ca so ien sau khi tatkhoa.

Cong tac nay phat hien ca m hay khong. No bat khi ca m va tat khi caong.

3.2.2.7. Cong tac ieu khien khoa ca:Relay ieu khien khoa ca bao gom hai relay va mot IC. Hai relay nay ieukhien dong ien en cac motor khoa ca. IC ieu khien hai relay nay theo tnhieu t cac cong tac khac nhau.

3.2.3. NGUYEN LY HOAT ONGPhan nay mo ta hoat ong khoa va m khoa cua cua cac khoa ca va tngchc nang cua he thong khoa ca. Cau tao cua giac noi relay ieu khien khoaca va cach anh so chan co the khac nhau tuy theo loai xe.


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3.2.3.1. Hoat ong khoa cua khoa caKhi ca b khoa do tn hieu t cac cong tac khac nhau, Tr1 ben trong relayieu khien khoa ca c IC bat. Khi Tr1 bat, dong ien qua cuon day relay

so 1 lam bat relay so 1. Khi relay so 1 bat, dong ien chay qua motor khoaca nh ch ra s o mach ien di, khoa tat ca cac ca.

Hnh 3.20: S o hoat ong khoa cua khoa ca

3.2.3.2. Hoat ong m khoa caKhi cac khoa c m, Tr2 c bat bi IC, khi Tr2 bat, relay so 2 bat vadong ien chay qua cac mo t khoa ca lam m tat ca cac khoa ca.


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Hnh 3.21: S o hoat ong m cua khoa ca.

3.2.3.3. Khoa ca bang cong tac ieu khien khoa caKhi cong tac ieu khien dch en Lock, chan 10 cua relay ieu khien khoaca c noi mass qua cong tac ieu khien khoa ca lam Tr1 bat trongkhoang 0,2 giay. No lam cho tat ca cac ca b khoa.

3.2.3.4. M khoa bang bang cong tac ieu khien khoa caKhi cong tac ieu khien khoa ca dch en pha Unlock, chan 11 cua relayieu khien khoa ca c noi mass qua cong tac ieu khien khoa ca, bat Tr2trong khoang 0,2 giay, no lam cho tat ca cac khoa ca m.

3.2.3.5. Chc nang khoa ca bang cha

Khi cha khoa ca quay sang pha Lock, chan 12 cua relay ieu khien khoaca c noi mass qua cong tac ieu khien cha, lam bat Tr1 trong 0,2 giay.No lam tat ca cac ca khoa.

3.2.3.6. Chc nang khoa ca bang chaCa pha ngi lai co the bao gom chc nang m khoa 2 bc. Khi cha caxoay sang v tr Unlock, chan 11 cua relay ieu khien c noi mass qua congtac ieu khien cha lam Tr2 bat trong khoang 2 giay. No lam tat ca cac cam khoa.


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3.2.3.7. Chc nang m khoa 2 bc (pha ca ngi lai)Chc nang nay khong co mot vai th trng. Khi cha cam ca pha ngilai xoay sang pha Unlock mot lan, no ch m khoa cho ngi lai. Luc nay

chan 9 cua relay ieu khien khoa ca c noi mass mot lan qua cong tacieu khien cha, nhng Tr2 khong bat.

Khi cha xoay sang pha Unlock hai lan lien tiep trong khoang 3 giay, chan 9c noi mass hai lan, nen Tr2 bat trong khoang 0,2 giay. No lam cho tat cacac khoa ca eu m.

3.2.3.8. Chc nang chong quen chaChc nang nay khong co pha hanh khach oi vi mot vai th trng.

a. Khi cha c cam vao o khoa ien va can khoa ca b an trong khi ca m,tat ca cac ca khong khoa. Ngha la neu chan 6 cua relay ieu khien khoaca c m bi cong tac v tr khoa ca trong khi chan 7 c noi mass quacong tac bao khong cam cha va hai chan c noi mass qua cong tac ca,Tr2 bat trong khoang 0,2 giay. No lam cho cac ca khong khoa.

b. Khi cong tac ieu khien khoa ca dch sang pha Lock vi chia cam trong okhoa ien va ca m, tat ca cac khoa ca khoa tam thi sau o m.

Ngha la, neu chan 10 cua r le ieu khien khoa ca c noi mass qua cong

tac ieu khien khoa ca trong khi chan 7 va chan 2 c noi mass, Tr1 battrong khoang 0,2 giay. Sau o Tr2 bat khoang 0,2 giay. No lam tat ca cackhoa ca khoa roi lai m.

c. Neu ca ong vi cha cam trong o khoa ien va an khoa ca (khoa), congha neu an can khoa ca an trong khoang 0,2 giay hay lau hn trong khi cacca khong khoa nh hoat ong muc (a), sau o ong, cac ca c m khoasau 0,8 giay. Neu lan au cac ca khong m khoa, chung se c m khoalai sau 0,8 giay na.

3.2.3.9. Chc nang an toanChc nang nay khong co mot vai model xe.

a. Neu cac ca c khoa bi mot trong cac hoat ong sau, cac ca se khongm khoa ngay ca khi cong tac ieu khien khoa ca di chuyen ve pha Unlock.

Ca c khoa bang cha khi khoa ien v tr khac vi v tr ON (bnhthng khi cha b rut khoi o khoa ien), va khi cac ca pha lai xe va hanhkhach c ong.


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Ca pha ngi lai (hay ca pha hanh khach) c khoa bang phng phapkhong dung cha (ieu khien t xa) khi khoa ien v tr khac v tr ON, caccan khoa ca ngi lai va ca hanh khach b an va ca pha hanh khach(hay ngi lai) ong.

b. Chc nang an ninh mat tac dung khi mot trong cac hoat ong sau c thchien.

Khoa ien xoay en v tr ON.

Cong tac ieu khien cha ca ngi lai c xoay mot lan en v tr Unlock.

Cong tac ieu khien khoa en pha Unlock vi can khoa tren ca hanh khachva ngi lai c keo len.

3.2.3.10. Chc nang ieu khien ca knh ien khi a tat khoa ienThong thng ca so ien ch hoat ong khi khoa ien v tr ON.

Tuy nhien, vi chc nang nay, trc khi bat ky ca nao c m, ca so ienco the hoat ong trong vong 60 giay ngay ca khi a tat khoa ien.

Chu y: Tr4 va Tr3 bat khi khoa ien bat va ien ap ra 12V en relay ca so ient chan 15.

3.3. HE THONG NANG HA KNH (POWER WINDOW)3.3.1. Cong dung

Nang ha knh xe nh motor ien mot chieu.

3.3.2. ac iemS dung nam cham vnh cu, motor nho, gon, de lap rap, bo tr motor quayc ca hai chieu khi ta oi chieu dong ien. Co the nang cao hoac ha thap

knh tuy y.3.3.3. Cau tao

3.3.3.1. Motor nang ha knhLa ong c ien mot chieu kch t bang nam cham vnh cu (giong nh motorhe thong gat va phun nc).


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Hnh 3.22: Motor nang ha ca knh tren xe HONDA ACCORD.3.3.3.2. He thong ieu khien

Gom co mot cong tac ieu khien nang ha knh, bo tr tai ca ben trai ngilai xe va moi ca hanh khach mot cong tac.

- Cong tac chnh (Main switch)- Cong tac nang ha ca tai xe (Drivers switch ).- Cong tac nang ha ca trc ni hanh khach (Front passengers switch).- Cong tac pha sau ben trai (Left rear switch).- Cong tac pha sau ben phai (Right rear swich).

3.3.4. S o mach ien tren xe TOYOTA CRESSIDA3.3.4.1. S o mach ien:


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Hnh 3.23: S o mach ien nang ha ca tren xe TOYOTA CRESSIDA.

3.3.4.2. Nguyen ly hoat ongKhi bat cong tac may, dong qua Power window relay, cung cap nguon chocum cong tac ieu khien ni ngi lai (Power window master switch).Neu cong tac chnh (Main switch) v tr OFF th ngi lai se chu ong ieukhien tat ca cac ca.


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Ca so M1:Bat cong tac sang v tr down: luc nay (1) se noi (2), motor se quay knh haxuong.Bat sang v tr UP (1) noi (3) va (1) noi (3) dong qua motor ngc ban au

nen knh c nang len.Tng t, ngi lai co the ieu khien nang, ha knh cho tat ca cac ca con lai(cong tac S2 , S3 va S4).Khi cong tac chnh c m, ngi ngoi trong xe c phep s dung khoangthong thoang theo y rieng (trng hp xe khong m he thong ieu hoa, ngkhong o nhiem, khong on...).Khi ieu khien qua gii han UP hoac DOWN, vt lng kim trong tng motorse m ra va viec ieu khien khong hp ly nay c vo hieu.

3.4. HE THONG IEU KHIEN GHE3.4.1. Cong dung

He thong ieu khien ghe lai dung e nang ha va di chuyen ghe trt ve trchay pha sau tao t the thoai mai cho ngi lai.

3.4.2. Cau taoGom cac motor di chuyen va cac cong tac ieu khien.

Hnh 3.24: V tr cac mo t ieu khien ghe lai.


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S o mach ien:

Hnh 3.25: S o mach ien hoat ong nang ha ghe lai.

Cong tac ieu khien s hoat ong cua ghe:

Hnh 3.26: Cong tac ieu khien s hoat ong cua ghe lai.

UP UP

DOWN DOWN

BACKWARDFORWARD

1 2

5 6 10

93 4

87


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Hnh 3.27: Bang hoat ong cua cac cong tac cac v tr.

3.4.3. Nguyen ly hoat ongCong tac Slide Switch:

- V tr FORWARD 1 noi 9 va 4 noi 10 ghe chuyen ong ve pha trc- V tr OFF: 1 noi 10 va 4 noi 10 ghe dng lai.- V tr BACKWARD: 1 noi 10 va 4 noi 9 ghe chuyen ong ve pha sau.

Cong tac Front Vertical Switch:- V tr UP: 2 noi 9 va 3 noi 5 ghe lai c nang len.- V tr OFF: 2 noi 5 va 3 noi 5 ghe lai dng lai.- V tr DOWN: 2 noi 5 va 3 noi 9 ghe lai c ha xuong.

Cong tac Rear Vertical Switch:- V tr UP: 6 noi 9 va 7 noi 8 ghe sau c nang len.- V tr OFF: 6 noi 8 va 7 noi 8 ghe sau dng lai.- V tr DOWN: 6 noi 8 va 7 noi 9 ghe sau c ha xuong.

Cong tac Reclining Switch:

1 2 3 4 5 6 7 8 9 10

au day

V tr cong tacFORWARD

OFF

BACKWARD

UP

OFF

DOWN

FORWARD

OFF

BACKWARD

UP

OFF

DOWN

SLIDESWITCH

FRONTVERTICAL

SWITCH

REARVERTICAL

SWITCH

RECLININGSWITCH

trc

bat

trc sau


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- V tr FORWARD: 5 noi 9 va 5 noi 10 ghe bat ve pha trc- V tr OFF: 1 noi 10 va 4 noi 10 ghe dng lai.3.5. HE THONG SAY KNH

3.5.1. Cong dungDung si nong knh sau, lam tan sng bang cac ien tr, c bo tr gialp knh sau. Cac ien tr nay c cung cap dong ien e nung nong knhkhi sng bam.

3.5.2. ac iemHe thong s dung nguon dng (+) cung cap trc tiep qua cau ch va relay xongknh (defogger relay), relay c ieu khien bi cong tac xong knh (defogger

switch) tren cong tac (defogger switch) co mot en bao xong va mot en soi congtac.

3.5.3. S o mach iena. S o mach ien

Hnh 3.28: S o mach ien xong knh.

Congtac may

Cong tac xong knhien tr xong knhCB

Cauch tong

Relayenkch thc

Congtac en

Bien tr

Accu

B

E

T

B

L


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b. Nguyen ly hoat ong

Theo s o mach ien, khi bat cong tac xong knh (defogger switch) ien trxong nong len, en bao xong sang.

Vao ban em mach en kch thc (Tail) se soi sang cong tac qua bien trieu chnh o sang.

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