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Diagnosis Technician >> Gasoline Engine Control System >>EFI EFI (Electronic Fuel Injection) Deskripsi (1/1) Mesin ECU Sensor oksigen Sensor temperatur.

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Presentasi berjudul: "Diagnosis Technician >> Gasoline Engine Control System >>EFI EFI (Electronic Fuel Injection) Deskripsi (1/1) Mesin ECU Sensor oksigen Sensor temperatur."— Transcript presentasi:

1 Diagnosis Technician >> Gasoline Engine Control System >>EFI EFI (Electronic Fuel Injection) Deskripsi (1/1) Mesin ECU Sensor oksigen Sensor temperatur air Sensor posisi Crankshaft Sensor posisi camshaft Injektor Air fRendahmeter Throttle position sensor Manifold pressure sensor

2 Diagnosis Technician >> Gasoline Engine Control System >>EFI Deskripsi Tipe EFI (1/1) 1. L-EFI (Tipe kontrol aliran udara) 2. D-EFI (Tipe kontrol tekanan manifold) 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 ECU Kontrol volume injeksi Bahan bakar Mesin Injeksi Injector Intake manifold Air

3 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Deskripsi (1/1) Main components Saringan bahan bakar Delivery pipe Pulsation damper Injector 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

4 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Pompa Bahan Bakar (1/1) Check valve Relife valve Motor Pump impeller Saringan pompa bahan bakar Bahan bakar Casing Impeller Blade Inlet port Outlet port

5 Diagnosis Technician >> Gasoline Engine Control System >>EFI 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

6 Diagnosis Technician >> Gasoline Engine Control System >>EFI 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

7 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Pulsation Damper (1/1)

8 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Injektor (1/1) Injektor O-ring Grommet Valve Kumparan Plunger

9 Diagnosis Technician >> Gasoline Engine Control System >>EFI 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

10 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (1/5) 1. Basic operation relay bukaan rangkai an relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor

11 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (1/5) relay bukaan rangkaia n relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor

12 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (1/5) relay bukaan rangkaia n relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor

13 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (1/5) relay bukaan rangkai an relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor

14 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (1/5) relay bukaan rangkai an relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor

15 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (1/5) relay bukaan rangkai an relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor DLC1 +B FP SST DLC1

16 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (2/5) relay bukaan rangka ian relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor Pompa bahan bakar control relay Resistor FP 2. Kontrol kecepatan pompa bahan bakar A B

17 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (3/5) 2. Kontrol kecepatan pompa bahan bakar relay EFIPompa bahan bakar ECU FP+ FP- FPC D1 Mesin ECU Pompa bahan bakar

18 Diagnosis Technician >> Gasoline Engine Control System >>EFI Sistem Bahan Bakar Kontrol Pompa Bahan Bakar (4/5) 3. Sistem shut-off pompa bahan bakar relay bukaan rangkaia n relay EFI Pompa bahan bakar IG ST Ignition switch FC E1 STA NE Sinyal NE Mesin ECU Microprocessor GSFC GSW Center airbag sensor assembly

19 Diagnosis Technician >> Gasoline Engine Control System >>EFI 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

20 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Metode Injeksi Bahan Bakar dan Waktu Pengapian (1/1) Indipendent (Sequential) grup Simultan 360  720  sudut Crankshaft

21 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Metode Injeksi Bahan Bakar dan Waktu Pengapian (1/1) Independent (Sequential) Intake stroke Ignition Injeksi bahan bakar 00  720  1080  sudut Crankshaft

22 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Metode Injeksi Bahan Bakar dan Waktu Pengapian (1/1) 00 360  720  1080  sudut Crankshaft grupIntake stroke Ignition Injeksi bahan bakar 2 grup grup 4 grup

23 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Metode Injeksi Bahan Bakar dan Waktu Pengapian (1/1) Simultan Intake stroke Ignition Injeksi bahan bakar 00  720  1080  sudut Crankshaft

24 Diagnosis Technician >> Gasoline Engine Control System >>EFI 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 ON Start Power enrichment koreksi temp. Intake air Various corrections and signals

25 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (1/11) Panj ang 1. Start enrichment durasi injeksi Pend ek START ON Rend ah Coolant temp.(  C) Ting gi 400rpm kondisi normal 200rpm keadaan start Hysteresis

26 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (2/11) Besar 2. Warm-up enrichment Jumlah koreksi durasi injeksi Kecil Rend ah Coolant temp.(  C) Ting gi 0

27 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (3/11) 3. Air-fuel ratio Koreksi feedback (Untuk kebanyakan model) Sensor oksigen Rich 0.45 V ECU Penentuan Mesin ECU Rich Lean Koreksi feedback Menurun Meningkat Menurun Meningkat

28 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (4/11) Air-fuel ratio learned control Rasio koreksi Rich mixture Lean mixture a a a Jangkaua n koreksi Nilai Central feedback kondisi normalOver life time

29 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (5/11) Sensor rasio udara- bahan bakar AF+ AF- 3.3V 3.0V Mesin ECU Data of A/F sensor (V) (V) Sensor oksigen output 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

30 Diagnosis Technician >> Gasoline Engine Control System >>EFI 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 

31 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (7/11) 4. Acceleration enrichment Besar Volume koreksi Kecil BesarKecil Perubahan jumlah intake air Besar Volume koreksi Kecil Waktu Akselerasi tiba-tiba Akselerasi pelan

32 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (8/11) 5. Fuel cut-off Kecepatan mesin Injection resumption Fuel cut-off Rendah Temperatur pendingin Tinggi

33 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (9/11) 6. Power enrichment

34 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (10/11) 7. Koreksi suhu intake udara Koefisien koreksi 1.0 Ren dah 20 (68) Tingg i temperatur Intake air  C (  F)

35 Diagnosis Technician >> Gasoline Engine Control System >>EFI Kontrol Durasi Injeksi Berbagai Koreksi (11/11) 8. Voltage correction durasi injeksi koreksi (msec) On Off Terbu ka Tertut up Koreksi voltaseSinyal inspeksi Injektor benar terbuka waktu delay operasi standar Ren dah Battery voltage (V) Ting gi 14

36 Diagnosis Technician >> Gasoline Engine Control System >>EFI

37 Kontrol Durasi Injeksi Berbagai Koreksi dan Sinyal (1/1) SensorSignal Durasi injeksi dasar Berbagai koreksi Start enrichment Warm-up enrichment Koreksi feedback Rasio udara- bahan bakar Acceleration enrichment Fuel cut-offPower enrichment Meteran aliran udara/ Manifold pressure sensor Sensor 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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