Sensors
DNOX2.2 system includes several sensors:
• NOx sensors
• Exhaust temperature sensors
• DEF tank level sensor
•
Temperature sensors: DEF tank, Supply Module internal
1.3.14 Engine control system
The basic function of the electric control of the engine is continuous adjustment and measuring of the load,
quantity of fuel and rotating speed. Other additional functions are for example cold start automatics, engine
protecting automatics and SCR system control.
The central unit of the electric control receives continuous signals from sensors that measure different
functions in the engine like rotating speed, oil pressure, boost pressure, coolant and fuel temperature. The
control unit receives the relevant information about the engine load need from the transmission or cabin
through the CAN bus.
The electronic control unit (ECU) makes it also possible to have a wide diagnostics through error codes.
1. Introduction
1-24 4th Generation Engines
8370 79492
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