Driver Demand - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

Driver's request
Idle speed controller
ASR traction control
Cruise control
Flow limit
Speed limiter
ASR traction control
Anti-oscillation strategy
Overflow
Programmed engine stop
Pilot injection flow
0

Driver Demand

The driver demand is the translation of the pedal position into the fuel demand. It is calculated as a function of the pedal
position and of the engine speed. The driver demand is filtered in order to limit the hesitations caused by rapid changes
of the pedal position. A mapping determines the maximum fuel which can be injected as a function of the driver demand
and the rail pressure. Since the flow is proportional to the injection time and to the square root of the injection pressure,
it is necessary to limit the flow according to the pressure in order to avoid extending the injection for too long into the
engine cycle. The system compares the driver demand with this limit and chooses the smaller of the 2 values. The driver
demand is then corrected according to the coolant temperature. This correction is added to the driver demand.
ENGINE CONTROL SYSTEM
DI ENG SM - 2004.4
Engine status
Main flow < controllable min.flow
Main flow request
DI08-15
Y220_08009
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN