Starting up the ECU | 2
Bosch Motorsport
Engine Control Unit MS 25 Sport
29 / 40
2.4.4.6
High Idle Controller
High idle controller nominal value is calibrated in the map MP_NHICO_NOM based on
gear
and coolant temperature
tmot
.
Droop value NHICO_DROOP defines the speed droop for enabling of the high idle engine
speed control.
High idle controller is a simple P controller. The friction map MP_QFRIC calibration within
the high idle controller engine speed range is important for the controller to function
properly.
2.4.4.7
Engine Start Fuel Quantity
MP_QSTART is the fuel quantity map for engine start as a function of engine speed
nmot
and engine temperature
tmot
. There is also a step limiter for ramping up and down when
transitioning from start to running mode.
Engine speed transitions from start to normal running mode happen based on the NMOT-
COND function calibration.
