zwłaszcza ze samochód po wyzerowaniu chodzi poprawnie w całym zakresie obrotów.
Po czasie zaczyna przymulać.
załączam schemat blokowy ECU na M1.5.5 może ktoś się na tym zna.
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-Kod:block 11 - calculates a full injection time Te from engine load Tl and factor Fges. Inputs from engine speed, load, temperature and air temperature
block 12 - receives inputs from battery voltage signal.
block 13 - PI -controller with proportional and integral terms and producing an output factor Fr.
block 14 - long time low-pass filter providing an output representing average fuel richness.
I, II, III - are the selected ranges for the adaptive pilot control.
block 15 - adaptive correction for air caused by leakage in the intake manifold, produce a parametr TRA , stored in the CMOS RAM
N is engine speed and NO is a reference engine speed value, for example , 850 rpm.
block 16 - adaptive correction for the injection valve and produces an output TDTV, stored in the RAM
block 17 - integrator for the adaptive correction for the altitude error and for the correction for the fuel quality, provides an output FRA, stored in RAM
block 21 - limiter device, limits integrator 17, The range of the output of integrator 17 for petrol is 0.8 to 1.2 but range is required 0.8 to 2.0
block 22 - if FRa reaches the upper limit , block 22 multiplies FMCOR by the value of FRA and FRA is then reset. If max. is reached, FRA is reset to
1 and FMCOR new is equal to 1.2 times FMCOR old. FMCOR is stored in RAM.
block 23 - multiplier device, lambda sensor or an oxygen sensor, working in closed loop control comprises a lambda sensor and a PI-controler.
block 30 - The corrected fuel injection time signal Te mofified by outputs TRA, TDVT and TVUB, is supplied as an actual signal to Ti to engine 30.
The RAM is a part of the control unit and the engine CPU uses it as a non volatile memory , so power must always be supplied.
After the engine is switched off and is subsequently started again, the adaptive content is immediately available.
The theoretical value of FMCOR is 1.728 ( 1.2 to 3 up ) but FMCOR is limited to 2. The remaining control deviation is corrected by FRA.
In this FRA = 1.157. In downwards procedure ( FMCOR = 1 ). In cases FRA can be used for corrections in a range about +/- 20%,
when FMCOR has been adapted
http://img514.imageshack.us/img514/4...dtv1ta9.th.jpg
