APP sensor (Accelerator Pedal Position Sensor)

Accelator Position Sensor, au ‘sensa’ ya kanyagio cha kuongeza kasi ya gari, namna jina ilivyo, inapeleka umbea kuhusu kiwango dereva amakanyaga ki kanyagio, kwenda kwenye kompyuta ya gari!

Sasa, kulingana na habari hii, kompyuta itajua niaje kuhusu kiasi cha mafuta cha mafuta uachiliwa kuchomwa, obviously na kiasi gani cha hewa ile throttle iwachilie!
Sensoryenyewe ipo hapo, juu ya kanyagio!


Moduli ya kanyagio inaweza kuundwa kwa uchawi wa, potentiometer au wa Magnetic Hall Effect, kulingana, au namna hii video itakuonesha ndani zaidi!

Namna yeyote, lakini Sensor hii inasajili fasta fasta harakati na msimamo wa kanyagio cha kuongeza kasi.


May be ukitaka ‘kulewa’ zaidi sana kuhusu huo uchawi wa Magnetic Hall Effect, bonyeza tu HAPA au kwenye hii picha chini!

Jinsi umeelewa, au kukumbuka, hii sensor inapeleka umbea kwenye kompyuta ya gari, alafu kompyuta inamuambia Throtle kiasi ya kufunguka, obviously na blaa bla zingine kwenye CAN, kiasi cha mafuta kinachohitajika, kulingana…
Na sababu kwanini zinakuanga sensor mbili ndani ya moja, au?

Sawa, jinsi tumejua kompyuta au ECU inatuma umeme 5V kuzungukia kwenye kila moja ya hizi sensor nani ya APP sensor, na juu ya huo uchawi wa  Hall Effect au Variable Resistance, kulingana kiasi ya mzunguko ata resistance itabadilika!
Sasa, wakati unapima, ukiona waya 6, lazima upate 5V mbili, ground au negative mbili, na siginal ….mbi?

 

MAP sensor

MAP sensor, au, Manifold Absolute Pressure Sensor, inapima kiasi au uzito wa mkusanyiko wa hewa uliopo kwenye ‘intake manifold’!
Mkusanyo wa hewa ukijumulisha na hewa inaotoka njia za mfumo zingine kama, EGR, TURBO, PCV, nk!Manifold ni hicho ki bla blaa kabla hewa kuingia cylinder au baada ya Throttle

Hii sensor inaeza kuwekwa popote, kulingana gari, ili mradi kuna njia yakufikia kupima hiyo hewa!


Ukitaka maelekezo mengine ya ndani ndani, namna inavyofanya kazi wapi vipi, nk, unaeza kutazama hii video


May be ukitaka kuelewa zaidi kuhusu huo uchawi wa Piezo ambao Pressure sensor nyingi zinategemea, bonyeza HAPA kwenye hii link au picha hapa chine LINK


Sensor hiyo mara nyingi inaka namna hii

Jinsi yalivyoelezwa yote kwenye hizo video, sensor hii inaweza kuwa na waya tatu au waya nne.

Mara nyingi reference voltage inakuwaga 5V kutoka kwenye ECU!

Weka igntion-ON, chunguza umeme kwenye hizo waya!

 

Advanced Automotive Fault Diagnosis: Automotive Technology: Vehicle Maintenance and Repair

 As you know, diagnostics, or fault finding, is a fundamental part of an automotive technician’s work, and as automotive systems become increasingly complex there is a greater need for better diagnostic skills.

This very Advanced Automotive Fault Diagnosis is a better book to treat automotive diagnostics as a science rather than a check-list procedure.
As breifly shown, each chapter includes basic principles and examples of a vehicle system followed by the appropriate diagnostic techniques, complete with useful diagrams, flow charts, case studies and self-assessment questions.

The book will help You, a newbie, to develop diagnostic skills and help experienced technicians improve even further.
This new edition is fully updated to the latest technological developments.

It explains the fundamentals of vehicle systems and components, and it examines diagnostic principles and the latest techniques employed in effective vehicle maintenance and repair.

Diagnostics, or faultfinding, is an essential part of an automotive technician’s work, and as automotive systems become increasingly complex there is a greater need for better diagnostic skills.

TO DOWNLOAD THE BOOK
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LANDROVER DIAGNOSIS & REPAIR MANUALS

This list is very incomplete, tunaendelea kuweka🤞! So, ukikosa uliotaka, shuka chini ya hii page utujulishe tukutumie fasta fasta, au zungumza/chat with SUZAN if She is online!
HAPA UJANJA tu😎!