Autocalibration release notes_ENG_rev05.pdf
(
1627 KB
)
Pobierz
Autocalibration release notes
Autocalibration in brief
Autocalibration has been re‐engineered to allow a quick and reliable calibration of the gas system on the
vehicle. Once installed the system and selected the main gas devices, after the idle calibration, the
execution of the autocalibration enables a training mode, and after a petrol drive and a trial gas mode
drive, the system is calibrated.
Appliance of Autocalibration
All the ECUs in the table below have the feature, or can be upgraded to have it, both for CNG and LPG fuels;
missing ECU models are not compatible with the feature.
The ECU needs to be updated in the software at least at the following versions
MP32
MP48
MP48OBD
Ver 5.63 or later
Ver 11.37 or later
Ver 9.69 or later
The feature is available since PC Software Tool Version 6.07.00.06 or later.
If PC Tool connects to an ECU that doesn’t run a firmware with the autocalibration feature, the Tool PC will
disable the related buttons.
If you connect a PC Software Tool Version older than 06.07.00.06 and inside the Gas ECU there is the
firmware version MP32 Ver 5.63 or later, MP48 Ver 11.37, MP48OBD Ver 9.69 the tool doesn’t connect and
advice you to update the software version.
Prerequisites to Autocalibration
In order to execute the procedure, gas equipment is supposed to be installed and tested, petrol and gas in
the tanks, warm engine.
Hence should be executed a standard system calibration (fuel, engine, sensors, injectors,…) and specific
vehicle strategies enabled, if necessary.
Autocalibration procedure
Start the IDLE AUTOCALIBRATION by selecting the command GO TO MIN CALIBRATION in the following
menu with the Calibration PC tool connected to the ECU.
STEP ONE
ENABLE THE AUTOCALIBRATION by check the command on the top of the chart. The ECU will enter in a
learning mode composed by several steps.
The
step one
consists driving in petrol mode,
the system acquires samples in the Injection‐time/Map
space. The vehicle driver, driving the vehicle both at idle and on‐road, must try to cover as much red dots as
he can, until a red line is drawn. In this activity the PC software ease the acquisition suggesting which area
still needs to be covered, or deleting mistaken samples.
Step one can be concluded as soon as the red line is plotted, but optionally the driver can refine the
acquisition continuing the petrol drive.
As soon as the driver switches to gas, the system runs step two
STEP TWO
Consist driving in gas mode (for a number of times calibrated in the “num automatch” value). As in step
one, the user must drive in a trial gas mode, in order to acquire green dots and achieve the drawing of a
line.
The system acquired the green line the first time
The system acquired the green line the last
time, the autocalibration is ended
The procedure finishes as the number of automatch reaches the required number of executions; the
autocalibration output is K Vector (blue line) different from the usual K map.
Autocalibration is an optional feature: it is possible
to continue using K maps achieved manually, or saved in archived calibrations
reset autocalibration K Factor vector
re‐execute totally or in part the procedure
Autocalibration software controls
Autocalibration enable
Enables the autocalibration feature. The most common use is to switch the control on, reset
previous stored data, if present, then begin with the petrol‐mode acquisition, until the systems
completes the number of automatch. Then the system applies the K Factor values in the graph
below.
Note: if the Autocalibration is disabled, the system does not use the K Factor correction calculated
in the autocalibration, so the enable flag must be switched to on permanently.
Num Automatch (default 3)
Is the number of iteration of the gas‐mode acquisition. At each iteration the green line tends to the
red line. The lower is the value, the quicker is the procedure; the higher the value, the longer will
be the procedure, but more accurate in most cases.
Manual automatch button
The button is automatically enabled in case of coherence of the acquired data; it causes the
acquisition of the gas samples, going to the next automatch.
Plik z chomika:
kubuspucharek
Inne pliki z tego folderu:
Autocalibration release notes_ENG_rev05.pdf
(1627 KB)
Inne foldery tego chomika:
201214-101020-v1.12.2.55_E
AEB 175 Leonardo v.3.1.0
AEB 2001 N 6.1.0.342 IC
AEB CAD
Alisei 6.0.7.0 IC
Zgłoś jeśli
naruszono regulamin