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Thread: ကြန္ပ်ဴတာ နွင္႔ ေမာ္ေတာ္ယာဥ္႔ျပဳျပင္ျခင္း

  1. #1
    Senior Member Hla Min Maung is on a distinguished road
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    ကြန္ပ်ဴတာ နွင္႔ ေမာ္ေတာ္ယာဥ္႔ျပဳျပင္ျခင္း

    ကြန္ပ်ဴတာ နွင္႔ ေမာ္ေတာ္ယာဥ္႔ျပဳျပင္ျခင္း ကိုဆက္လက္ေဆြးေနြးပါမယ္္
    ယခုအခါ Computer နည္းပညာနွင့္အတူူ ေမာ္ေတာ္ယာဥ္နည္းပညာမ်ား တိုးတက္လာမွုေၾကာင္႔ျပဳျပင္ျခင္းလုပ္ငန္းတြင္ ပိုမိုက်ယ္ျပန့္႐ွုပ္ေထြးသကဲ့သို့ျဖစ္ေစခဲ့သည္။ ဤအေျခအေနကိုေျဖရွင္းနိုင္ရန္ ေမာ္ေတာ္ယာဥ္႔ျပဳျပင္ျခင္းလုပ္ငန္းတြင္ ကြန္ပ်ဴတာမ်ား အသံုးျပဳရန္ လိုအပ္လာပါသည္။
    [၁] Workshop Data Manual software မ်ားအသံုးျပဳျခင္း
    Auto Data Manual Software တခုအေၾကာင္းေဆြးေနြးၾကည့္ရေအာင္
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    Last edited by Hla Min Maung; 03-13-2012 at 11:14 PM.
    My name is Hla Min Maung from Myanmar, Yangon.
    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

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  3. #2
    Senior Member Hla Min Maung is on a distinguished road
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    ကားအမ်ိဳးအစားမ်ားစြာ တို႔ရဲ့ အခ်က္အလက္ အမ်ိဳးမ်ိဳးကို လြယ္ကူစြာ ရွာေဖြနိုင္မွာျဖစ္ပါတယ္။ နမူနာၾကည့္ခြင့္ရတဲ့ Holden 1997-98 Vectra ရဲ့ Data ေတြကိုၾကည့္ၾကရေအာင္ Engine က X25XE 25 cc 125KW @5800 rpm
    [1]Data link connector တည္ေနရာ နွင့္ Trouble code မ်ားေလ့လာရန္
    Trouble code ကိုကလစ္လိုက္ပါ သင္သိလိုသမ်ွ Link ေတြနဲ့အတူေတြ႔ရပါလိမ့္မည္။
    ကိုယ္တိုင္ရွာခ်င္ယင္ဒီမွာ http://www.autodata.com.au/software.php?product=1 Click on ONE MODEL DEMO.
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    Last edited by Hla Min Maung; 03-14-2012 at 07:57 PM.
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    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

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  5. #3
    Advanced Member dudugyi is on a distinguished road dudugyi's Avatar
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    အကိုေရ...သူက၊ protocol တခုလားမသိဘူး။ ရလာတဲ႔ analog signal ေတြကို၊ I/ O ခံၿပီး၊ digital signal ေၿပာင္းမယ္။ ၿပီးရင္ bus ေပါါတင္မယ္။ တခၽိဳ႕ကၽေတာ႔ digital signal အေနနဲ႔ထုတ္ေပးမယ္၊ ၿပီးရင္ bus ေပါါတင္မယ္၊ အဲလိုလား အကို။

    ဒူဒူစဥ္းစားႀကည္႔တာက၊ sensor မွတဆင္႔ addressing နဲ႔ လုပ္တာလားရယ္လို႔ပါ။ bus system ေတြမွာ၊ data, alarms, parameters နဲ႔ diagnostic data ေတြပါသလို၊ လိုအပ္ရင္ purely cyclically communication အေနနဲ႔ data ေတြကိုေပးပို႔နိဳင္တယ္လို႔၊ ႀကားဖူးလို႔ပါ။
    Last edited by dudugyi; 03-14-2012 at 08:03 PM.
    ဒူဒူ ဟာ အူတူတူ လူ တေယာက္ပါ။ http://dudugyi.blogspot.com

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  7. #4
    Senior Member Hla Min Maung is on a distinguished road
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    Quote Originally Posted by dudugyi View Post
    အကိုေရ...သူက၊ protocol တခုလားမသိဘူး။ ရလာတဲ႔ analog signal ေတြကို၊ I/ O ခံၿပီး၊ digital signal ေၿပာင္းမယ္။ ၿပီးရင္ bus ေပါါတင္မယ္။ တခၽိဳ႕ကၽေတာ႔ digital signal အေနနဲ႔ထုတ္ေပးမယ္၊ ၿပီးရင္ bus ေပါါတင္မယ္၊ အဲလိုလား အကို။
    ဟုတ္ပါတယ္ Computer protocol နဲ့ပါ ေနာက္ဆံုး latest က Can Protocol ပါ အားလံုး ဆယ္မ်ိဳးေလာက္႐ွိပါလိမ့္မည္။ ေနာက္ပိုင္းမွာေဖါၤျပေပးပါမယ္
    မဟုတ္ပါဘူး, OBD 2 Scanner နဲ့ Link လုပ္လိုက္ယင္ Monitoring လုပ္ထားတဲ့ စံနစ္တိုင္းရဲ့ Live data ေတြကို Scope or Multimiter or so on.... Scanner software မွာ Built in ပ ါတဲ့ Tools ထဲက နွစ္သက္ရာတခုခုနဲ့ ၾကည့္နိုင္ သကဲ့သို့
    ကားတစီးလံုးရဲ့ေရာဂါမ်ားကိုတိက်လ်ွင္ျမန္စြာ ရွာေဖြနိုင္ပါသည္။

    ဒူဒူစဥ္းစားႀကည္႔တာက၊ sensor မွတဆင္႔ addressing နဲ႔ လုပ္တာလားရယ္လို႔ပါ။ bus system ေတြမွာ၊ data, alarms, parameters နဲ႔ diagnostic data ေတြပါသလို၊ လိုအပ္ရင္ purely cyclically communication အေနနဲ႔ data ေတြကိုေပးပို႔နိဳင္တယ္လို႔၊ ႀကားဖူးလို႔ပါ။
    Data ေတြဘယ္လိုစီးဆင္းသလဲ ခ်ိတ္ဆက္လဲဆိုတာေတာ့မသိပါဘူး I/O ေတြြ Protocol Converter ေတြမပါတာေတာ့ေသခ်ာတယ္ 1996 Model ကေနအထက္ OBD 2 [ On-Board Diagnosis ] စံနစ္တပ္ဆင္ထားတဲ့့ ကားေတြမွာ ECU ၅ခု ၆ခုပါဝင္ျပီး Engine ECU က Main ECU အျဖစ္ Data Link မ်ားခ်ိတ္ဆက္ျပီးအလုပ္လုပ္ပါတယ္။
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    Last edited by Hla Min Maung; 03-15-2012 at 11:23 AM.
    My name is Hla Min Maung from Myanmar, Yangon.
    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

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    Engine Management Component Testing ကိုၾကည့္ၾကရေအာင္

    1] Service Adjustment မွာ
    Idle speed 570-730 rpm,
    Co2 level 0.4 % max - at tail pipe.
    Throttle initial adjustment not possible.

    2]Fuel System မွာ
    Fuel pressure
    Regulate - Vacuum on - 2.5-3.0 bar
    System - Vacuum off - 3.0-3.5 bar

    Fuel Delivery Rate
    0.8 liter/30 sec approx

    Injector
    Injector have Multi Plug
    Terminal 1-8, 2-8, 3-8, 4-8, 5-8, 6-8 =15-17 Ohm
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    Last edited by Hla Min Maung; 03-16-2012 at 07:02 PM.
    My name is Hla Min Maung from Myanmar, Yangon.
    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

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    Senior Member Hla Min Maung is on a distinguished road
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    Fuel Pump
    Fuel Pump ကိုစစ္ေဆးရန္္ Ignition Key ေသာ့ကိုေသခ်ာစြာပိတ္ပါ။
    Fuel Pump Relay ကိုျဖဳတ္ပါ
    ပံုျပပါအတိုင္း Relay အထိုင္က Terminal No 8 and 9 ကို ခလုတ္တခုနွင့္ဆက္သြယ္ပါ။ ခလုတ္ဖြင့္လ်ွင္ Fuel pump လည္သံၾကားေနရပါမည္

    Intake System
    Throttle Position Sensor စမ္းသပ္ပံုအဆင့္ဆင့္ Mass Air Flow sensor စမ္းသပ္ပံုအဆင့္ဆင့္ Intake Air Temperature Sensor 20C မွာ 2300-2700 Ohm , 40C မွာ 1000-1300 ohm , 60C မွာ 560-670 ohm နင့္ 80C မွွွာ 290-370 ohm ရွိရပါမည္။
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    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

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    Senior Member Hla Min Maung is on a distinguished road
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    Engine Control Module ECM ကိုစစ္ေဆးပံုအဆင့္ဆင့္, Vehicle Sensor မ်ား Power Steering Pressure Sensor နွင့္ Vehicle Speed Sensor ကိုစစ္ေဆးပံုအဆင့္ဆင့္, ECM ၏ Pin Data မ်ား
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    My name is Hla Min Maung from Myanmar, Yangon.
    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

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  15. #8
    Moderator ကိုထြန္း will become famous soon enough ကိုထြန္း's Avatar
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    Quote Originally Posted by dudugyi View Post
    အကိုေရ...သူက၊ protocol တခုလားမသိဘူး။ ရလာတဲ႔ analog signal ေတြကို၊ I/ O ခံၿပီး၊ digital signal ေၿပာင္းမယ္။ ၿပီးရင္ bus ေပါါတင္မယ္။ တခၽိဳ႕ကၽေတာ႔ digital signal အေနနဲ႔ထုတ္ေပးမယ္၊ ၿပီးရင္ bus ေပါါတင္မယ္၊ အဲလိုလား အကို။ ဒူဒူစဥ္းစားႀကည္႔တာက၊ sensor မွတဆင္႔ addressing နဲ႔ လုပ္တာလားရယ္လို႔ပါ။ bus system ေတြမွာ၊ data, alarms, parameters နဲ႔ diagnostic data ေတြပါသလို၊ လိုအပ္ရင္ purely cyclically communication အေနနဲ႔ data ေတြကိုေပးပို႔နိဳင္တယ္လို႔၊ ႀကားဖူးလို႔ပါ။
    Quote Originally Posted by Hla Min Maung View Post
    Data ေတြဘယ္လိုစီးဆင္းသလဲ ခ်ိတ္ဆက္လဲဆိုတာေတာ့မသိပါဘူး I/O ေတြြ Protocol Converter ေတြမပါတာေတာ့ေသခ်ာတယ္ 1996 Model ကေနအထက္ OBD 2 [ On-Board Diagnosis ] စံနစ္တပ္ဆင္ထားတဲ့့ ကားေတြမွာ ECU ၅ခု ၆ခုပါဝင္ျပီး Engine ECU က Main ECU အျဖစ္ Data Link မ်ားခ်ိတ္ဆက္ျပီးအလုပ္လုပ္ပါတယ္။

    ဒီလိုပါ ဒူဒူေရ။ OBD ဆိုတဲ႔ On-Board Diagnostics ဟာ၊ self-diagnostic and reporting capability အေနနဲ႔၊ အခၽက္အလက္ေတြကို ေဖာ္ၿပအသိေပးတဲ႔၊ စနစ္တခု ၿဖစ္ပါတယ္။ (၁၉၆၉) ေလာက္ကတည္းက၊ Volkswagen ရဲ႕ fuel injection system မွာ၊ scanning capability အေနနဲ႔ စတင္အသံုးၿပဳခဲ႔ပါတယ္။ (၁၉၇၅) မွာ Datsun 280Z engine ရဲ႕ fuel injection system မွာ အသံုးၿပဳခဲ႔ပါတယ္။ (၁၉၈၀) မွာေတာ႔ GM ဟာ၊ ECM လို႔ေခါါတဲ႔ Engine Control Module ကို၊ assembly line အေနနဲ႔တတ္ဆင္အသံုးၿပဳတဲ႔အခါ၊ အခၽက္အလက္ data ေတြကိုရရိွဖို႔ 'assembly line diagnostic link' ေတြနဲ႔ ခၽိတ္ဆက္ခဲ႔ပါတယ္။

    proprietary interface အေနနဲ႔ signal ေတြကိုေၿပာင္းလဲဖို႔လိုအပ္သလို၊ communications protocol ကိုလည္း၊ အသံုးၿပဳရပါတယ္။ communications protocol ဆိုတာကေတာ႔၊ digital message formats အၿဖစ္၊ ၿပဌာန္းထားတဲ႔ data and massage exchanging rules ေတြၿဖစ္ၿပီး signaling, authentication နဲ႔ error detection and correction capabilities ေတြ ပါဝင္ပါတယ္။ 'assembly line diagnostic link' ဟာ၊ Pulse-width modulation signaling ကိုအသံုးၿပဳထားပါတယ္။ ဒီလိုနဲ႔ (၁၉၈၈) ေလာက္မွာေတာ႔၊ The Society of Automotive Engineers (SAE) အသင္းမွ၊ standardized diagnostic connectors ေတြနဲ႔ diagnostic test signals ေတြကိုသတ္မွတ္၊ ၿပဌာန္းေပးခဲ႔ပါတယ္။



    Fig. EMS - Engine management system



    Fig. On board diagnostic

    အေပါါမွာ ေဖာ္ၿပထားတဲ႔၊ system ကို ဥပမာအေနနဲ႔ ႀကည္႔လၽွင္၊ signal conditioning circuit မွ၊ analog, frequency နဲ႔ digital signals ေတြကို၊ engine management system ကိုေပးသြင္းၿပီး၊ on board diagnostic (OBD) capability အေနနဲ႔ထုတ္ယူတာ၊ ေတြ႔ရမွာၿဖစ္ပါတယ္။ sensors ေတြမွေပးပို႔လာတဲ႔ signals ေတြကို၊ လိုအပ္သလိုေၿပာင္းလဲကာ၊ diagnostic data ေတြအၿဖစ္ထုတ္ယူၿခင္းလို႔၊ ေၿပာနိဳင္ပါတယ္ ဒူဒူေရ။


    Reference and Image credit to : Retrofit Engine Management System, , on board diagnostics,

    Remark : All images herein this website are for use of educational purpose only. The owner of this web site is not responsible for the consequences in case of violation to copyright, trademark, patent or other intellectual property rights of any third party.
    Last edited by ကိုထြန္း; 03-17-2012 at 11:47 AM.

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    Senior Member Hla Min Maung is on a distinguished road
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    Sorry ပါ ကိုဒူဒူေရ က်ေနာ့္အေျဖမျပည့္မစံုျဖစ္သြားတာခြင့္လြႇတ္ပါ။
    Wiring Circuit မ်ား နွင့္ Data မ်ား
    Attached Images
    My name is Hla Min Maung from Myanmar, Yangon.
    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

  18. The Following 7 Users Say Thank You to Hla Min Maung For This Useful Post:


  19. #10
    Senior Member Hla Min Maung is on a distinguished road
    Join Date
    Apr 2009
    Location
    Singapore
    Age
    57
    Posts
    166
    Thanks
    230
    Thanked 527 Times in 145 Posts
    Rep Power
    10
    Wiring Circuit မ်ား နွင့္ Data မ်ား
    Attached Images
    My name is Hla Min Maung from Myanmar, Yangon.
    Automobile is my favorite . I'm interested in engine management system. But, now I working at construction equipment company. I repair the crawler crane, trench cutter, boring pile and son on... , I'd like to work computerize automobile work shop.

  20. The Following 7 Users Say Thank You to Hla Min Maung For This Useful Post:


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