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  1. Join Date
    Dec 2009
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    3,006
    #1
    Quote Originally Posted by timming_gear View Post
    May napanood ako sa Tv Patrol nag test ang mitsubishi sa planta ng Laguna na kahit rev limit na basta nag break hihinto ang Montero kaya palpak ang Sua. At Human error Lang
    kaso hindi tangap ng iba kasi sa osciloscope daw makikita ang katotohan

    sa osciloscope wave-form ang makikita na mahirap intindihin para sa mga ordinaryong tao.

    yun actual acceleration with simultaneous braking na huminto ang montero ay hindi tangap kasi intermittent nga ang paniwala na problema

    intermittent kick (spike in electrical signal) to full throttle with brake function disabled including the tail light which is a simple battery, switch (pedal) and lights circuit like a FLASHLIGHT is overriden by the ECU
    Last edited by kisshmet; December 5th, 2015 at 08:16 PM.

  2. Join Date
    Oct 2013
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    #2
    Quote Originally Posted by kisshmet View Post
    kaso hindi tangap ng iba kasi sa osciloscope daw makikita ang katotohan

    sa osciloscope wave-form ang makikita na mahirap intindihin para sa mga ordinaryong tao.

    yun actual acceleration with simultaneous braking na huminto ang montero ay hindi tangap kasi intermittent nga ang paniwala na problema

    intermittent kick to full throttle with brake function disabled including the tail light which is a simple battery, switch (pedal) and lights circuit like a FLASHLIGHT is overriden by the ECU
    1. Ang ecu wala pakialam sa brake system, hangang monitoring lang yan at feedback sa servo ng abs.

    2. Wala rin pakialam ang ecu sa brake lights, very primitive na technology but effective ang switching system ng brake lights.

    You can read some tuning books para makita mo kung ano ang monitored and controlled ng ecu.

  3. Join Date
    Oct 2013
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    1,181
    #3
    Sa oscilloscope mo makakita ang reaction ng ecu sa pinasok na signal ng signal generator, at ang raw data ng ganitong mga equipments ay hindi para sa ordinaryong tao.

    Lahat ng electrical systems ay may transient, may intermittent na outputs, pero nasa ecu mo na yan kung paano ihahandle ang intermittent na signal. Nasa key components mo na rin yan kung gaano sila katolerant sa emi or sa harsh environment like extreme vibration, temp, moisture etc...

    Kung di nyo ito maintindahan, di ko na yan problema.

  4. Join Date
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    #4
    Quote Originally Posted by vvti2.0 View Post
    Sa oscilloscope mo makakita ang reaction ng ecu sa pinasok na signal ng signal generator, at ang raw data ng ganitong mga equipments ay hindi para sa ordinaryong tao.

    Lahat ng electrical systems ay may transient, may intermittent na outputs, pero nasa ecu mo na yan kung paano ihahandle ang intermittent na signal. Nasa key components mo na rin yan kung gaano sila katolerant sa emi or sa harsh environment like extreme vibration, temp, moisture etc...

    Kung di nyo ito maintindahan, di ko na yan problema.
    i understand perfectly but what youre asking can only be accomplished in a laboratory environment

    osciloscope is a laboratory equipment which requires a competent person (technician) to interpret properly

    you dont expect ordinary person to understand what they get to view in an osciloscope screen

  5. Join Date
    Oct 2008
    Posts
    267
    #5
    Matanong ko lang.

    May event log ba na makukuha sa ECU ng Montero?
    Kung meron, bakit hindi na lang i-upload yung event log ng mga sinasabing nag SUA para makita kung anong tinapakan ng mga drivers nung time nag-wild daw ang Montero nila?

  6. Join Date
    Mar 2015
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    65
    #6
    Quote Originally Posted by first_light View Post
    Matanong ko lang.

    May event log ba na makukuha sa ECU ng Montero?
    Kung meron, bakit hindi na lang i-upload yung event log ng mga sinasabing nag SUA para makita kung anong tinapakan ng mga drivers nung time nag-wild daw ang Montero nila?
    Palagay ko merom kasi yung 10 $ nga na micro controller na mabibili sa ebay pwede mo ma program na may event log yung ECU pa kaya, pero yung log na yan siguro para lang sa manufacturer engineer d pwede share sa iba, parang nagbigay naren cla ng ebidensya kung share nila.

  7. Join Date
    Oct 2008
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    267
    #7
    Quote Originally Posted by Junesp111 View Post
    Palagay ko merom kasi yung 10 $ nga na micro controller na mabibili sa ebay pwede mo ma program na may event log yung ECU pa kaya, pero yung log na yan siguro para lang sa manufacturer engineer d pwede share sa iba, parang nagbigay naren cla ng ebidensya kung share nila.
    Let me understand it very well.
    You mean, kung meron man event log yung ECT or ECU, malalaman at malalaman kung anong tinapakan ni driver-error nung time na nag wild daw yung Montero niya?

    Pero kung wala namang event log, walang proof, puro hula-hula lang at haka-haka. And tuloy-tuloy itong thread na 'to.

  8. Join Date
    Oct 2013
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    1,181
    #8
    Quote Originally Posted by Junesp111 View Post
    Palagay ko merom kasi yung 10 $ nga na micro controller na mabibili sa ebay pwede mo ma program na may event log yung ECU pa kaya, pero yung log na yan siguro para lang sa manufacturer engineer d pwede share sa iba, parang nagbigay naren cla ng ebidensya kung share nila.
    Madali magsabi na may event log pero paano mo pagkakasyahin sa eeprom ng ECU mag external or internal and event log ng lahat ng sensors, and tandaan natin, ang event log ay may time stamp, wala rin ako alam na ECU na may sariling real time clock (RTC), at wala rin backup battery ang ECU.

    So pano ka mag datalog or event log kung wala ka RTC?

    And pano rin ang design mo nito, lahat ba ng readout mag call ka ng interrupt routine to record, or kung may questionable lang data?

  9. Join Date
    Oct 2002
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    4,456
    #9
    Wow! Masyadong technical na ito. Mukhang hindi naman aabot sa kinauujulan ang mga technical na bagay dito.

    In the meantime....may isa nanamang montero sumalpok sa pader sa qc. :p

  10. Join Date
    Oct 2013
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    1,181
    #10
    Quote Originally Posted by first_light View Post
    Matanong ko lang.

    May event log ba na makukuha sa ECU ng Montero?
    Kung meron, bakit hindi na lang i-upload yung event log ng mga sinasabing nag SUA para makita kung anong tinapakan ng mga drivers nung time nag-wild daw ang Montero nila?
    Wala ako alam na ECU na may event log, not sure kung meron ang mga very high end na mga sasakyan.

    Just imagine kung meron event log, di ka na aasa sa mga OBD codes hahaha, yang OBD codes na pahirapan pa para magtrace kung san talaga ang issue. Kung may event log, isang saksak, kita mo agad ang trace ng errors, sa OBD pahula hula ka pa most of the time.

  11. Join Date
    Oct 2008
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    267
    #11
    Quote Originally Posted by kisshmet View Post
    i understand perfectly but what youre asking can only be accomplished in a laboratory environment

    osciloscope is a laboratory equipment which requires a competent person (technician) to interpret properly

    you dont expect ordinary person to understand what they get to view in an osciloscope screen
    Maraming scope na handheld at pwedeng pang-field.

  12. Join Date
    Oct 2013
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    1,181
    #12
    Quote Originally Posted by first_light View Post
    Maraming scope na handheld at pwedeng pang-field.
    Ang ibig sabihin ni paps, hindi pang masa ang data na binibigay ng oscilloscope. And still will need an expert to interpret the data para maintindihan ng audience.

  13. Join Date
    Mar 2015
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    65
    #13
    Quote Originally Posted by vvti2.0 View Post
    Ang ibig sabihin ni paps, hindi pang masa ang data na binibigay ng oscilloscope. And still will need an expert to interpret the data para maintindihan ng audience.
    Instruemnts needed for simulation:

    1 no. oscilloscpe - 500 $
    1 no. Signal generator - 500 $
    1 no. variable regulated power supply - 200 $

    and a qualified electronic engineer to interprete the signal. - 1000 to 1500 $/ month less tax, pag sa pinas nag tatrabho yung engineer.

    lahat ng instrument na yan portable pwede dalhin sa field.

  14. Join Date
    Dec 2009
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    #14
    Quote Originally Posted by first_light View Post
    Maraming scope na handheld at pwedeng pang-field.
    true, put that in front of doris begornia and her camera i bet nganganga sya

    it will take an expert opinion in the field of mechanical as well as electronics and computer programming to settle this phenomenon
    Last edited by kisshmet; December 5th, 2015 at 09:25 PM.

  15. Join Date
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    #15
    ^really it will take an expert interpretation to understand a waveform..not even a judge will easily distinguish a spike and a square wave

  16. Join Date
    Oct 2013
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    1,181
    #16
    Quote Originally Posted by kisshmet View Post
    really it will take an expert interpretation to understand a waveform..not even a judge will understand easily a spike and a square wave
    Ipakita mo sa judge lang raw data ng oscilloscope at hayaan mo sya mag interpret. Sige nga. Unless the judge is experienced with the use of the oscilloscope. Btw, dapat mo pa ipaliwanag sa judge yung axis ng scope yung v per division etc. same rin yung timing diagram na ini expect mo sa output. Very basic naman kung spike lang square lwave lang nakikita mo. Lol.

  17. Join Date
    Oct 2013
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    1,181
    #17
    Any di ba driver error na nga haha!

  18. Join Date
    Oct 2013
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    1,181
    #18
    Kaya sir dapat ang mitsubishi na gumawa ng paraan para at least bumalik kumpyansa sa kanila, kasi kung korte ito nila isettle, ang doubt andun pa rin. Isa itong technical na bagay, hindi kailangan ang abogado dito, pampagulo lang sila. Anyway, lahi naman hahaha!

  19. Join Date
    May 2014
    Posts
    397
    #19
    Ecu? Ang alam ko lang may heavy tuners na montero club dito sa pinas. They are tuned by speedworks engineering using EcuTek software. Knowing na 2 years sila sa bansa. Wala naman issue sa unit nila. Halos 2013 model pababa ang mga ecutek montero owners. Power is ranging from 220whp up to 320 whp torque is 700 foot lbs. Stock brakes are doing the job fine. As what mitsubishi said brakes are designed to stop such engine power on all range of rpm. If only the developers can be here to discuss how they did to understand the ecu of monter and remap it. I was just thinking maybe they have to technology that is not present here.

    Good job for vvti2. Well explained at di ko an maintindihan. Hahaha

    Pag mababa resale value ng montero EcuTek na lang ako. At least I can outrun 2016 models. Lels. Hehe

  20. Join Date
    Oct 2015
    Posts
    175
    #20
    May nakabasa na ba ng source code ng firmware ng maski anong car brand dito?

    From a previous post Toyota's killer firmware: Bad design and its consequences | EDN

Mitsubishi Montero Sudden Acceleration Accidents [MERGED]