Electronic Control Of The Engine Control Unit - Iveco VECTOR Series Technical And Repair Manual

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VECTOR 8 ENGINES
SECTION 3 - INDUSTRIAL APPLICATION

Electronic control of the engine control unit

ENGINE PRE—HEATING ELEMENT CONTROL
Pre/post—heating is turned on even if just one of the water, air or fuel temperature sensors signals a temperature ≤ 5 °C.
PHASE RECOGNITION
The cylinder in which fuel must be injected is identified upon starting via the signals of the sensor on the camshaft and/or on the
crankshaft.
INJECTION CONTROL
The control unit, according to the information from the sensors, governs the pressure regulator and varies the injection modes.
INJECTION PRESSURE CLOSED CYCLE CONTROL
Depending on the engine load, determined by processing the signals from the various sensors, the control unit governs the
regulator to have the optimum pressure at all times.
PILOT AND MAIN INJECTION ADVANCE CONTROL
Depending on the signals from the various sensors, the control unit determines the optimal injection point according to internal
mapping.
PEAK SPEED LIMITATION
Appropriate engine speed thresholds are stored in the control unit according to the application. When the engine speed exceeds
these thresholds the control unit actuates suitable reductions in power by controlling the electro—injector energising time.
SMOKE CONTROL
With load requirements, depending on the signals received from both the engine speed sensor, air temperature and the pressure
sensors the control unit adjusts the air fuel ratio in order to avoid black smoke.
Print P2D32V001E Base - April 2006