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In contrast to previously known systems, the
ME 7.5 is not limited to the output of torque
variables to the networked control units (ABS,
automatic gearbox). Instead it refers back to
the basis of this physical variable when it cal-
culates the manipulated variables.
All - internal and external - torque requests are
combined to form a nominal torque.
To implement the nominal torque, the manipu-
lated variables are co-ordinated, making allo-
wance for consumption and emission data so
as to ensure optimal torque control.
External and
internal tor-
que requests
Calculation of
efficiency and tor-
que reference
variables
Charge path prio-
ritisation
Prioritisation of
crankshaft-syn-
chronous path
Conversion of
torque into
charge
Throttle valve
angle
Charge pressure
control
Calculation
of crankshaft-
synchronous
initiations
Throttle position
calculation
Charge pressure
(waste gate)
Ignition angle
Cylinder sup-
pression
Injection time
Charge torque
setpoint
Setpoint charge
Intake manifold
pressure setpoint
Inner torque
setpoint
Actual charge
Torque-oriented
functional structure
SSP207/97
