Transcript
Page 1: Sistem Electronic Fuel Injection

(1/1)

Mesin ECU

Sensor oksigen

Sensor oksigen

Sensor temperatur air

Sensor posisi Crankshaft

Sensor posisi camshaft

InjektorAir fRendahmeter

Throttle position sensor

Manifold pressure sensor

Page 2: Sistem Electronic Fuel Injection

Deskripsi Tipe EFI

(1/1)

Deteksi intake air mass

Mesin ECU

Udara

Air fRendahmeter

Intake manifold

Mesin

Kecepatan mesin

Injeksi

Injektor

Kontrol volume injeksi

Bahan bakar

Manifold pressure sensor

Deteksi intake manifold pressure

Kecepatan mesin

Mesin ECUKontrol volume injeksi

Bahan bakar

Mesin

Injeksi

Injector

Intake manifold

Air

1. L-EFI (Tipe kontrol aliran udara)

2. D-EFI (Tipe kontrol tekanan manifold)

Page 3: Sistem Electronic Fuel Injection

Sistem BahaBakar Deskripsi

(1/1)

Main components

Saringan bahan bakar

Delivery pipe

Pengatur tekanan

Pompa bahan bakar

Saringan pompa bahan bakar

Tangki bahan bakar

Pulsation damper

Delivery pipe

Saringan bahan bakar

Pompa bahan bakar

Saringan pompa bahan bakar

Pengatur tekanan

Pompa bahan bakar assembly

Tangki bahan bakar

Pulsation damper

Injector

Page 4: Sistem Electronic Fuel Injection

Sistem Bahan BakarPompa Bahan

Bakar

(1/1)

Check valve

Relife valve

Motor

Pump impeller

Saringan pompa bahan bakar

Bahan bakar

Casing

Impeller

Blade

Inlet port

Outlet port

Page 5: Sistem Electronic Fuel Injection

Sistem Bahan Bakar

Regulator Tekanan

(1/2)

1. Type 1

ke Injector

dari Pompa bahan bakar

Saringan bahan bakar

Pengatur tekanan

ke Tangki bahan bakar

katup

Page 6: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Regulator Tekanan

(2/2)

2. Tipe 2

ke Intake manifold

Katup

Pulsation damper

Pengatur tekanan Pipa kembali bahan bakar

Tangki bahan bakar

ke Tangki bahan bakar

dari Delivery pipe

Diaphragm

Page 7: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Pulsation Damper

(1/1)

Page 8: Sistem Electronic Fuel Injection

Sistem Bahan Bakar

Injektor

(1/1)

O-ring

Grommet

ValveKumparan

Plunger

Injektor

Page 9: Sistem Electronic Fuel Injection

Sistem Bahan Bakar

Saringan Bahan Bakar/Saringan Pompa

Bahan bakar

(1/1)

1. Saringan bahan bakar/2. Saringan pompa bahan bakar

Saringan bahan bakar

Saringan pompa bahan bakar

Page 10: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(1/5)

1. Basic operation

relay bukaan rangkai an

relay EFI Pompa bahan bakar

IG

STIgnition switch FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

Page 11: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(1/5)

relay bukaan rangkaian

relay EFI Pompa bahan bakar

IG

STIgnition switch FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

Page 12: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(1/5)

relay bukaan rangkaian

relay EFI Pompa bahan bakar

IG

STIgnition switch FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

Page 13: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(1/5)

relay bukaan rangkai an

relay EFI Pompa bahan bakar

IG

STIgnition switch FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

Page 14: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(1/5)

relay bukaan rangkai an

relay EFI Pompa bahan bakar

IG

STIgnition switch FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

Page 15: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(1/5)

relay bukaan rangkai an

relay EFIPompa bahan bakar

IG

STIgnition switch FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

DLC1 +B

FP

SST

DLC1

Page 16: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(2/5)

relay bukaan rangka ian

relay EFIPompa bahan bakar

IG

STIgnition switch

FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

Pompa bahan bakar control relay

Resistor

FP

2. Kontrol kecepatan pompa bahan bakar

A

B

Page 17: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(3/5)

2. Kontrol kecepatan pompa bahan bakar

relay EFI Pompa bahan bakar ECUFP+

FP-

FPC

D1

Mesin ECU

Pompa bahan bakar

Page 18: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(4/5)

3. Sistem shut-off pompa bahan bakar relay

bukaan rangkaian

relay EFIPompa bahan bakar

IG

STIgnition switch FC

E1

STA

NESinyal NE

Mesin ECU

Microprocessor

GSFC

GSW

Center airbag sensor assembly

Page 19: Sistem Electronic Fuel Injection

Sistem Bahan Bakar Kontrol Pompa

Bahan Bakar

(5/5)

Reset switch Diagram

sistem

Pompa bahan bakar inertia switch Ball

Contact point

Link

relay utama EFI +B

DI

Pompa bahan bakar ECU

FP+

FP-

FPC

Pompa bahan bakar

Pompa bahan bakar inertia switch

Mesin ECU

Contact point (ON)

Link

Ball

Normal

Contact point (OFF)

Acceleration

Pegerakan

Mendeteksi tabrakan

Pompa bahan bakar inertia switch

Page 20: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi

Metode Injeksi Bahan Bakar dan

Waktu Pengapian

(1/1)

Indipendent (Sequential)

grup

Simultan

360 720

sudut Crankshaft

Page 21: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi

Metode Injeksi Bahan Bakar dan Waktu Pengapian

(1/1)

Independent (Sequential)

Intake stroke

Ignition

Injeksi bahan bakar

0

1

2

3

4

360 720 1080

sudut Crankshaft

Page 22: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi

Metode Injeksi Bahan Bakar dan Waktu Pengapian

(1/1)

0 360 720 1080

sudut Crankshaft

grup Intake stroke Ignitio

n

Injeksi bahan bakar

2 grup

153624

153624

18436572

3 grup

4 grup

Page 23: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi

Metode Injeksi Bahan Bakar dan Waktu Pengapian

(1/1)

Simultan

Intake stroke

Ignition

Injeksi bahan bakar

0

1

2

3

4

360 720 1080

sudut Crankshaft

Page 24: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi

Kontrol Durasi Injeksi Bahan bakar.

(1/1)

Durasi injeksi Durasi injeksi dasar+durasi injeksi koreksi

Start enrichment

Warm-up enrichment

Air-fuel ratio Koreksi feedback

Acceleration enrichment

Fuel cut-off

ONStart

Power enrichment

koreksi temp.

Intake air

Various corrections and signals

Page 25: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi

Berbagai Koreksi

(1/11)

Panjang

1. Start enrichment

durasi injeksi

Pendek

START ON

Rendah

Coolant temp.(C) Tinggi

400rpm kondisi normal

200rpmkeadaan start

Hysteresis

Page 26: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(2/11)

Besar

2. Warm-up enrichment

Jumlah koreksi durasi injeksi

Kecil

Rendah

Coolant temp.(C) Tinggi

0

Page 27: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(3/11)

3. Air-fuel ratio Koreksi feedback (Untuk kebanyakan model)

Sensor oksigenRich

0.45 V

ECU

Penentuan Mesin ECU

Rich

Lean

Lean

Koreksi feedback

MenurunMeningkat

MenurunMeningkat

Page 28: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(4/11)

Air-fuel ratio learned control

Rasio koreksi

1.2

1.0

0.8

Rich mixture

Lean mixture

a a a

1.2

1.0

0.8

Jangkauan koreksi

Nilai Central feedback

kondisi normal Over life time

Page 29: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi

Berbagai Koreksi

(5/11)

Sensor rasio udara-bahan bakar

AF+

AF-

3.3V

3.0V

Mesin ECU

Dat

a of

A/F

se

nsor (V)

4.2

2.211 14.7 19

(V)1

0.1 Sen

sor

oks

ige

n ou

tpu

t

Sensor rasio udara-bahan bakar

Sensor oksigen

Air-fuel ratia

Output characteristics

Rich

Rasio udara-bahan bakar teoritis

Lean

Disorder

A/F sensor

Sensor oksigen

Injection volume

Sensor oksigen

A/F sensor

Koreksi pada proporsi konstan

Koreksi cepat

Page 30: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(6/11)

Mesin ECU

Volume injeksi

Menurun

Meningkat

Richer

Leaner

Variable resistor

Idle mixture adjusting screw

Injektor Rich mixture

Lean mixture

SST

180

Page 31: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(7/11)

4. Acceleration enrichment

Besar

Volume koreksi

Kecil

Besar

KecilPerubahan jumlah intake air

Besar

Volume koreksi

Kecil

Waktu

Akselerasi tiba-tiba

Akselerasi pelan

Page 32: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(8/11)

5. Fuel cut-off

Kec

epa

tan

mes

inInjection resumption

Fuel cut-off

Rendah Temperatur pendingin Tinggi

Page 33: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(9/11)

6. Power enrichment

Page 34: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(10/11)

7. Koreksi suhu intake udara

Koe

fisie

n k

ore

ksi

1.0

Rendah

20(68

)

Tinggi

temperatur Intake air C (F)

Page 35: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi

(11/11)

8. Voltage correction

dura

si in

jeks

i ko

reks

i (m

sec)

On

Off

Terbuka

Tertutup

Koreksi voltase Sinyal inspeksi

Injektor benar terbuka

waktu delay operasi standar

Rendah

Battery voltage (V)

Tinggi

14

Page 36: Sistem Electronic Fuel Injection

Kontrol Durasi Injeksi Berbagai Koreksi dan

Sinyal

(1/1)

Sensor

SignalDurasi injeksi dasar

Berbagai koreksi

Start enrichment

Warm-up enrichment

Koreksi feedback Rasio udara-bahan bakar

Acceleration enrichment

Fuel cut-off Power enrichment

Meteran aliran udara/Manifold pressure sensorSensor posisi Crankshaft

Sensor posisi camshaft

Sensor temperatur air

Sensor posisi

Throttle

Sensor oksigen

VG / PIM

NE

G

THW

IDL

VTA

OX1A, OX1B


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