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ENGINE 1.3L QUADRAJET (90PS)
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3A.1.8.4.3 OPERATION PERFORMED BY EMS
A. INTRODUCTION : OPERATING STRATEGIES
The Common Rail system makes it possible to carry
out two pilot injections before T.D.C. with the
advantage of distributing the pressure in the
combustion chamber more evenly and reducing the
combustion noise typical of direct injection engines
and up to two injections after the main injection with
the advantage of reducing emissions.
The control unit controls the quantity of fuel injected,
regulating the line pressure and injection times.
The control unit processes the following information
to control the quantity of fuel to inject :
Q
engine rpm;
Q
coolant temperature;
Q
supercharging pressure;
Q
air temperature (from flow meter);
Q
intake air quantity;
Q
battery voltage;
Q
diesel pressure;
Q
accelerator pedal position;
Q
diesel temperature;
Q
Lambda signals.
FLOW OF INPUTS AND OUTPUTS