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  1. #1
    THE AVERAGE USER
    Date Of Registration
    Feb 2013
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    708

    how to change a torque limiter

    who would give me a hand in figuring out how do I change the torque limiters, gradually with the ecm?
    ex: if I want to increase to 15% starting from 1500 rpm up to the max, I select all the range of that? from 1500 to 4500 and give it a amuento in a percentage up to 15%.
    as in the picture?
    but I know that the clutch an increase in so, does not do well.
    instead, to increase more gradually, how do I select the type 1500 and 2000, and increased 6%, then 2000, and 2500 8% and so on?
    ? so what do you do?
    thanks
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  2. #2
    THE AVERAGE USER
    Date Of Registration
    Oct 2012
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    322
    Hello...so, I think conceptually process a file in % ? incorrect...
    Talk about torque limiter...so, you know what? really??expresses mm3 of diesel?or actually nm of torque?(the first case edc15c, the second case edc16c)....
    Now, we all know that the critical point for the clutch and flywheel ? around 2000 rpm...then, begins to increase in points...example...and find the value of 300nm at 2000 rpm...arrives at 350nm...and then from that increase throughout the curve...cos?, you have failed to comply with the provision of the propulsrore desired by the manufacturer, and increased uniformly over the entire curve....
    There? of course not prevent you from giving a greater increase after the 2500 rpm...but do so always in the points...so? you know actually what and how much you're increasing!!!

  3. #3
    THE AVERAGE USER L'avatar di giuseppe1374
    Date Of Registration
    Feb 2013
    The resort
    Sicily Catania
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    408
    the torque limiter ? a complicated thing, you have to modify on the basis of other changes-for example, if 5% of diesel ? useless by 25% of the torque limiter, then the limiter will change, also taking into account the type of machine and its wear and tear, especially on the wear of the clutch, in principle, to a torque limiter as standard, you need to increase the percentage higher revs, the pi? experts have reached a certain number of laps, pull in a straight line.. but this ? another bet.

  4. #4
    THE AVERAGE USER
    Date Of Registration
    Oct 2012
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    322
    Citazione Originally Written by giuseppe1374 Visualizza Messaggio
    the torque limiter ? a complicated thing, you have to modify on the basis of other changes-for example, if 5% of diesel ? useless by 25% of the torque limiter, then the limiter will change, also taking into account the type of machine and its wear and tear, especially on the wear of the clutch, in principle, to a torque limiter as standard, you need to increase the percentage higher revs, the pi? experts have reached a certain number of laps, pull in a straight line.. but this ? another bet.
    Look, I do not agree on the increase in the %...the diesel is even worse...that you never know how much it actually increases...all should be studied...for example, a jtd115 has 70mm3 of diesel...well, you decide to go with 80mm3 of diesel...not random...it takes account of the smoke ? willing to accept the...to calculate the afr, and then the right amount of oil to use..on the basis of that, then you make, the map pedal (dw), smoke limiter, torque, injection times..if you need to rail pressure.

  5. #5
    THE AVERAGE USER L'avatar di giuseppe1374
    Date Of Registration
    Feb 2013
    The resort
    Sicily Catania
    Messages
    408
    thanks for your lesson, professor, I made an example for him to understand, however I diesel I always in percentage and in 2d, and I have never had a problem and the machines that I did 5/6 years ago, still running without problems, just in case if I need to contact you, hello.

  6. #6
    THE AVERAGE USER L'avatar di MisterKappa
    Date Of Registration
    Apr 2013
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    82
    Question from a novice who is trying to understand:
    admitting that thou wilt inject from 70 to 80 mm3 of fuel, this can be considered as an increase of the 14% [(80-70)/70*100)]
    Roughly, we must not increase the other maps of the same percentage if you do not want that our quantity of diesel fuel is not to be limited ?
    I speak of the torque limiter and the fumes for example..

  7. #7
    THE AVERAGE USER (OF) L'avatar di motorsport
    Date Of Registration
    Jan 2013
    The resort
    campania
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    1,110
    I also mod in % 2d only turbo in points + lim....even I have had problems for many years,I say, then, is the perc..what is there to do c'? explain it to mario???
    You do not really understand something until you can explain it to your grandmother (Einstein)

  8. #8
    ACTIVE USER (OF) L'avatar di sportknight
    Date Of Registration
    Dec 2012
    The resort
    Matera
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    1,423
    the maps that limit the diesel, but not all, of the 14% depends on the maps,that's why? you should check the values of conversion

  9. #9
    THE AVERAGE USER L'avatar di MisterKappa
    Date Of Registration
    Apr 2013
    Messages
    82
    But if the function is linear, K-type*value, the percentage has the usual meaning if applied to the account of the k*value, or directly to the value..
    It seems to me it should be so also for the table that is used to convert torque into mm3 injected
    If the increase in the 10% diesel fuel in large lines incrementero' well as the 10% of the torque generated, no ?
    Perhaps for the turbo, the situation is different because in effect you have to see if it is reported the pressure of the turbocharger or if the total..

  10. #10
    THE AVERAGE USER
    Date Of Registration
    Oct 2012
    Messages
    322
    So, I'm sorry ke the user if it is taken...it was not but intention to offend anyone...it's just that, if I have a child who goes to school...and asks to be taught the additions, does not teach the moltiplicaizoni...
    Anyway, mister...I try to help you...increases in the diesel fuel, 5%,... where?map the pedal?map time?map rail pressure?what ecu are we talking about?
    Therefore, if you are going to give this percentage increase to the map pedal, thou shalt not do to another that an increase in the demand of diesel fuel (or torque) to the ecu...now...let's say that your pedal stop to 70mm3... your map ? "climbing" for these 70mm3...now, you have given the 5%increase and then you asked 73.5 mm3 of diesel...the ecu, in your opinion, what time curve/rail/lim smoke will go? to read?simple...always one of the 70!!!Now, you will understand well that the only mod to the pedal if not for the port increases...be careful...if you before you had a 50% pedal a request 60mm3 of diesel, now you have 60mm3+5%-->63mm3...then the ecu, in parit? pressure pedal inietter? pi? diesel...but the end result will be? always the same...it will be? simply how to install a sprint booster to the pedal...it will be? only the most reactive...xk? the avr? the max diesel in the shortest excursion pedal...
    Now, let's go to the map time...according to me ? mistake to speak of %, why? qu? the dependence apart from the rail pressure, ? also given by the K-factor (which I have already? explained in another post)...and then, by increasing the map times, and the rail..you know? never how much fuel you are actually injecting! Here is the xk?, I prefer to decide what result do you get (or mm3 or in pairs), and l?, I'm going to increase the torque required at the pedal, then step to lim torque, then I go in the map times, and I'm going to enter in the last bp the new times calculated for the corresponding prex rail for the new amount of fuel required. In addition, the increase in the rail pressure only if the times become "important" and then the risk to go too many degrees in the post-injection...in this case, the increase in the rail pressure only where needed and I'm going to calculate the new time map time...
    For the turbo, the speech ? the same...(at the 99% is reported prex total)...that is, until, for example, 70mm3 the ecu knows that he must do max 1.3 turbo...well...if we do x? in the little box of 70mm3 we calculated the times for 85mm3 of diesel...we'll go in the little box of 70mm3 of the turbo and we are going to insert the new pressure...
    Of course you are speaking of speeches, very fine...of course moddare %...it can't hurt...xk? ? a DIESEL...and break a diesel..? very difficult....
    I have seen maps with moddati advances as a % of jtd115...in the table were almost 9?....luckily there are limiters....
    I hope not to have confused you even more..the advice I can give ?: parts one thing at a time, set a goal that you want to achieve (in terms of torque/diesel) and start editing the rest...

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