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A.A.T -1 ;JL";L\U V[g0 VMJZ CM,L\U VMO VM8MDMAF., s5[8=M,f. I]GL8 G\P Z V[gÒG ;L:8D ,[XG G\P !& M.P.F.I. ;L:8D. ,[XGGF C[T]VM :. VF ,[XGG[ V\T[ TD[ , !P M.P.F.I. ;L:8DGF OFINF ;DHXMP ZP M.P.F.I. ;L:8DGL ZRGF ;DHXMP #P E.C.U. G]\ SFI" ;DHXMP

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Slide1 l.jpg

A.A.T -1 ;JL";L\U V[g0 VMJZ CM,L\U VMO VM8MDMAF., s5[8=M,f

I]GL8 G\P Z

V[gÒG ;L:8D

,[XG G\P !&

M.P.F.I. ;L:8D


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,[XGGF C[T]VM:

VF ,[XGG[ V\T[ TD[ ,

!P M.P.F.I. ;L:8DGF OFINF ;DHXMP

ZP M.P.F.I. ;L:8DGL ZRGF ;DHXMP

#P E.C.U. G]\ SFI" ;DHXMP

$P ;[g;ZG]\ SFI" ;DHXMP


Slide4 l.jpg

M.P.F.I. ;L:8DGF OFINFo

V[gÒGGF ,M0 VG[ :5L0 VG];FZ CJF VG[ 5[8=M,G]\ RMS;F.YL lDz6

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VMS;LHGGF VFWFZ[ NCGG]\ lGIDG SZL XSFI K[P


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rich

lean

Engine output

Fuel consumption

Fuel-air mixture


Slide6 l.jpg

Electronoc Fuel Injection & Throttle control

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BOSCH S\5GLäFZF

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M.P.F.I. ;L:8d;










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OI], 5d5 o

;SXG 0L,LJZL



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E.C.U. G]\ SFI" o

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M.P.F.I. ;L:8DDF\ J5ZFTF D]bI ;[g;;"o

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M.P.F.I. ;L:8DDF\ J5ZFTF D]bI ;[g;;"o

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M.P.F.I. ;L:8DDF\ J5ZFTF D]bI ;[g;;"o

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M.P.F.I. ;L:8DDF\ J5ZFTF D]bI ;[g;;"o

S|[gSXFO8 5MhLXG ;[g;Zo T[ V[gÒGGF RPM DF5[ K[P


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M.P.F.I. ;L:8DDF\ J5ZFTF D]bI ;[g;;"o

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Slide33 l.jpg

,FdA0F ;[g;Z o

Heating element

Protective tube

Connecting

cable

Shell

Electric contacts

Disc spring

Supporting

ceramic tube

ZrO2 sensor ceramics

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Slide34 l.jpg

,FdA0F ;[g;Z o

Non-heated lambda sensor

Heated lambda sensor


Slide35 l.jpg

Lambda sensors - basic types

„LS“ 0 258 001 xxx Non-heated sensors (finger type  = 1)

0 258 002 xxx

„LSH“ 0 258 003 xxx Heated sensors (finger type  = 1)

0 258 005 xxx

„LSM“ 0 258 104 xxx Heated sensors (finger type  > 1)

„LSF“ 0 258 006 xxx Heated sensors (planar type  = 1)

„LSU“ 0 258 007 xxx Heated sensors (universal planar type, variable )


Slide36 l.jpg

Gasoline direct injection

High-pressure pump

Fuel rail

Ignition coil

MAP sensor

Pressure control valve

Air-mass meter with

air temperature sensor

Lambda-

sensor (LSU)

Injectors

Electronic throttle control

ETC

Pressure sensor

Exhaust-gas recirculation valve

NOx-

catalytic

converter

Lambda

sensor (LSF)

Electronic

control unit

In-tank module

including the

fuel-supply pump


Slide37 l.jpg

Gasoline Direct Injection

Stratified charge

Homogeneous charge

Compression ratio up to approx.  = 17 possible

Throttle plate position

Partial load with wide open throttle plate (stratified charge)

WOT

Engine idle with wide open throttle plate and low rpm

Lambda ratio

Stratified charge makes lean fuel-air

mixture up to approx.  = 8 possible

 = 1

Engine torque

Up to 20% reduced fuel consumption

compared with manifold injection

0

Accelerator pedal position


Slide38 l.jpg

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www.howstuffworks.com

www.toyotabharat.com

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