I advise you to do a log to see if the diesel fuel injected ? really what you have set... On my mjet 120cv I had noticed that during the rapid transients of the ecu, the injected ir? diesel of one set with various limiters... As if it did not take account of some of these, but only the map conversion pair - iq
not ? this is the main issue... the phenomenon ? due to the fact that the duty cycle of the variable geometry ? calibrated up to a certain IQ of diesel, if you go above the ecu open? the vanes of the variable geometry in the same way.Originally Written by cjack
Definitely will have to? also check this thing, I didn't go over the maximum iq set in the axis of the duty c. Geometry.... For this I would suggest doing a log and monitor the diesel...
I say this because I, too, first time I had worked with the duty c. To try to solve the problem...
However, the pu? be that our 2 problems are of a different nature
at the end ? the same, why? you find yourself with an IQ greater, but the map of the duty cycle calibrated to an IQ less, then you have a discrete peak.
I would have thought to act directly on the dipstick of the waste gate in order to reduce both the peak and the resistance between the vanes at the exit of the gas. Make business with pleasure! what do you say!
? no... you can Not do so... No ? a fixed geometry turbine with wastegate actuated by the pressure of the air to the inlet, here the control ? electronic
it also works that way, but in the end what you would get would be to remove a few hundred points in the whole map of the duty cycle, then ? pi? comfortable that way...
Tried it (not on this car) for other reasons and it works. For? he is right, sandro. There was a rifletuto
instead, in the case of the turbine is increased and the pressure difference how you behave.
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in the case of the turbine plus to do a good job I proceed cos?:
before I turn off the PID controller and adjusting the duty of the variable geometry I make sure to always have the pressure measured above the objective (of a few mbar, once this is done, rinseriscono the PID and you can? give some point in pi? the duty with high flow rates of fuel in order to have an overboost and the inlet pressure times the smaller turbo. All it requires, however, numerous tests, to which the via ir? quick ? to insert an additional module in which you can? adjust the peak and constant.
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